diff --git a/testing/web-platform/meta/MANIFEST.json b/testing/web-platform/meta/MANIFEST.json
index 75b6023ef658..fc6ae4abe721 100644
--- a/testing/web-platform/meta/MANIFEST.json
+++ b/testing/web-platform/meta/MANIFEST.json
@@ -186143,6 +186143,102 @@
      {}
     ]
    ],
+   "svg/text/reftests/text-inline-size-001.svg": [
+    [
+     "/svg/text/reftests/text-inline-size-001.svg",
+     [
+      [
+       "/svg/text/reftests/text-inline-size-001-ref.svg",
+       "=="
+      ]
+     ],
+     {}
+    ]
+   ],
+   "svg/text/reftests/text-inline-size-002.svg": [
+    [
+     "/svg/text/reftests/text-inline-size-002.svg",
+     [
+      [
+       "/svg/text/reftests/text-inline-size-002-ref.svg",
+       "=="
+      ]
+     ],
+     {}
+    ]
+   ],
+   "svg/text/reftests/text-inline-size-003.svg": [
+    [
+     "/svg/text/reftests/text-inline-size-003.svg",
+     [
+      [
+       "/svg/text/reftests/text-inline-size-003-ref.svg",
+       "=="
+      ]
+     ],
+     {}
+    ]
+   ],
+   "svg/text/reftests/text-inline-size-005.svg": [
+    [
+     "/svg/text/reftests/text-inline-size-005.svg",
+     [
+      [
+       "/svg/text/reftests/text-inline-size-005-ref.svg",
+       "=="
+      ]
+     ],
+     {}
+    ]
+   ],
+   "svg/text/reftests/text-inline-size-006.svg": [
+    [
+     "/svg/text/reftests/text-inline-size-006.svg",
+     [
+      [
+       "/svg/text/reftests/text-inline-size-006-ref.svg",
+       "=="
+      ]
+     ],
+     {}
+    ]
+   ],
+   "svg/text/reftests/text-inline-size-007.svg": [
+    [
+     "/svg/text/reftests/text-inline-size-007.svg",
+     [
+      [
+       "/svg/text/reftests/text-inline-size-007-ref.svg",
+       "=="
+      ]
+     ],
+     {}
+    ]
+   ],
+   "svg/text/reftests/text-inline-size-101.svg": [
+    [
+     "/svg/text/reftests/text-inline-size-101.svg",
+     [
+      [
+       "/svg/text/reftests/text-inline-size-101-ref.svg",
+       "=="
+      ]
+     ],
+     {}
+    ]
+   ],
+   "svg/text/reftests/text-inline-size-201.svg": [
+    [
+     "/svg/text/reftests/text-inline-size-201.svg",
+     [
+      [
+       "/svg/text/reftests/text-inline-size-201-ref.svg",
+       "=="
+      ]
+     ],
+     {}
+    ]
+   ],
    "svg/text/reftests/text-multiline-001.svg": [
     [
      "/svg/text/reftests/text-multiline-001.svg",
@@ -300685,6 +300781,46 @@
      {}
     ]
    ],
+   "svg/text/reftests/text-inline-size-001-ref.svg": [
+    [
+     {}
+    ]
+   ],
+   "svg/text/reftests/text-inline-size-002-ref.svg": [
+    [
+     {}
+    ]
+   ],
+   "svg/text/reftests/text-inline-size-003-ref.svg": [
+    [
+     {}
+    ]
+   ],
+   "svg/text/reftests/text-inline-size-005-ref.svg": [
+    [
+     {}
+    ]
+   ],
+   "svg/text/reftests/text-inline-size-006-ref.svg": [
+    [
+     {}
+    ]
+   ],
+   "svg/text/reftests/text-inline-size-007-ref.svg": [
+    [
+     {}
+    ]
+   ],
+   "svg/text/reftests/text-inline-size-101-ref.svg": [
+    [
+     {}
+    ]
+   ],
+   "svg/text/reftests/text-inline-size-201-ref.svg": [
+    [
+     {}
+    ]
+   ],
    "svg/text/reftests/text-multiline-001-ref.svg": [
     [
      {}
@@ -420746,6 +420882,54 @@
      "/css/selectors/selection-image-001-noref.html",
      {}
     ]
+   ],
+   "svg/text/visualtests/text-inline-size-001-visual.svg": [
+    [
+     "/svg/text/visualtests/text-inline-size-001-visual.svg",
+     {}
+    ]
+   ],
+   "svg/text/visualtests/text-inline-size-002-visual.svg": [
+    [
+     "/svg/text/visualtests/text-inline-size-002-visual.svg",
+     {}
+    ]
+   ],
+   "svg/text/visualtests/text-inline-size-003-visual.svg": [
+    [
+     "/svg/text/visualtests/text-inline-size-003-visual.svg",
+     {}
+    ]
+   ],
+   "svg/text/visualtests/text-inline-size-005-visual.svg": [
+    [
+     "/svg/text/visualtests/text-inline-size-005-visual.svg",
+     {}
+    ]
+   ],
+   "svg/text/visualtests/text-inline-size-006-visual.svg": [
+    [
+     "/svg/text/visualtests/text-inline-size-006-visual.svg",
+     {}
+    ]
+   ],
+   "svg/text/visualtests/text-inline-size-007-visual.svg": [
+    [
+     "/svg/text/visualtests/text-inline-size-007-visual.svg",
+     {}
+    ]
+   ],
+   "svg/text/visualtests/text-inline-size-101-visual.svg": [
+    [
+     "/svg/text/visualtests/text-inline-size-101-visual.svg",
+     {}
+    ]
+   ],
+   "svg/text/visualtests/text-inline-size-201-visual.svg": [
+    [
+     "/svg/text/visualtests/text-inline-size-201-visual.svg",
+     {}
+    ]
    ]
   },
   "wdspec": {
@@ -635200,6 +635384,70 @@
    "51303171f09d28e3958ab74ecdce7f9cf120bd12",
    "testharness"
   ],
+  "svg/text/reftests/text-inline-size-001-ref.svg": [
+   "6abd211584ea3b500e409c0f0fa956182fe131e6",
+   "support"
+  ],
+  "svg/text/reftests/text-inline-size-001.svg": [
+   "ae1a10d190ac0f04a2a3168ff8096aaa4fa60066",
+   "reftest"
+  ],
+  "svg/text/reftests/text-inline-size-002-ref.svg": [
+   "66f771e310d4de86ba8ed1aa982054c3247a2b59",
+   "support"
+  ],
+  "svg/text/reftests/text-inline-size-002.svg": [
+   "141909c3e57335f7bbfda0cb04aaef1f5c76c492",
+   "reftest"
+  ],
+  "svg/text/reftests/text-inline-size-003-ref.svg": [
+   "289b92a02ae5c8627cbde0d983a08cb2a096eb7c",
+   "support"
+  ],
+  "svg/text/reftests/text-inline-size-003.svg": [
+   "9fcab5ba0adb13d30a0721cd83da84648b36db9b",
+   "reftest"
+  ],
+  "svg/text/reftests/text-inline-size-005-ref.svg": [
+   "af756b69645d323f084f77287d58e96c8dbc6de6",
+   "support"
+  ],
+  "svg/text/reftests/text-inline-size-005.svg": [
+   "e6a1d75c0502611e7648abfe83deda021731ebcb",
+   "reftest"
+  ],
+  "svg/text/reftests/text-inline-size-006-ref.svg": [
+   "9c32e841a61432edaf9486caab9eb21e7c5b5922",
+   "support"
+  ],
+  "svg/text/reftests/text-inline-size-006.svg": [
+   "b84e3d5302fe5b811988fb7a7d6b5261653536fc",
+   "reftest"
+  ],
+  "svg/text/reftests/text-inline-size-007-ref.svg": [
+   "181785117fb4a434748870ff69518473925b5090",
+   "support"
+  ],
+  "svg/text/reftests/text-inline-size-007.svg": [
+   "9d18b52d2ee957c68fb2ab0b049841bd67e052ee",
+   "reftest"
+  ],
+  "svg/text/reftests/text-inline-size-101-ref.svg": [
+   "ab41dea8da5c9e7df7e7d179ed63a5f8ff2fb67f",
+   "support"
+  ],
+  "svg/text/reftests/text-inline-size-101.svg": [
+   "fa8bf5ef5cfecc3c2e5793a75477dc7db9c2ac8a",
+   "reftest"
+  ],
+  "svg/text/reftests/text-inline-size-201-ref.svg": [
+   "b1eb7c747354b5e6fe8b5bd251199f1ce8a4a91d",
+   "support"
+  ],
+  "svg/text/reftests/text-inline-size-201.svg": [
+   "5ab3213a69be9982709b46566f42668e4f623be5",
+   "reftest"
+  ],
   "svg/text/reftests/text-multiline-001-ref.svg": [
    "9238a88da59bb53f8c3eac1fb77d11024f850e38",
    "support"
@@ -635240,6 +635488,38 @@
    "a4b6bf52bd2c6bd7492d18f32ded4b7590b302f9",
    "reftest"
   ],
+  "svg/text/visualtests/text-inline-size-001-visual.svg": [
+   "086bab33b0030bb1d40dc17f960b7e3cbb098ae6",
+   "visual"
+  ],
+  "svg/text/visualtests/text-inline-size-002-visual.svg": [
+   "7f58973ce359b79113247ca28a155216687e0d13",
+   "visual"
+  ],
+  "svg/text/visualtests/text-inline-size-003-visual.svg": [
+   "19bf0dc9d53d81c7a65a0c2a200ec5b3c1d7e771",
+   "visual"
+  ],
+  "svg/text/visualtests/text-inline-size-005-visual.svg": [
+   "dab467e1221be1da26d5194414cb54c766074a5c",
+   "visual"
+  ],
+  "svg/text/visualtests/text-inline-size-006-visual.svg": [
+   "427ff09501b75b4e58429d42ad2339e43c596d7d",
+   "visual"
+  ],
+  "svg/text/visualtests/text-inline-size-007-visual.svg": [
+   "8bb078f95b0743452caf08d2367260902dc1059e",
+   "visual"
+  ],
+  "svg/text/visualtests/text-inline-size-101-visual.svg": [
+   "e1c5c416931ad35437bb1f480ed896e18dce50ba",
+   "visual"
+  ],
+  "svg/text/visualtests/text-inline-size-201-visual.svg": [
+   "f2649eaad28fe66a6534f2e2c0f26e291c5ee38d",
+   "visual"
+  ],
   "svg/types/elements/SVGGeometryElement-rect.svg": [
    "d4b278f2836f75fd3f6cbe8460d20147116e4bfe",
    "testharness"
diff --git a/testing/web-platform/tests/svg/text/reftests/text-inline-size-001-ref.svg b/testing/web-platform/tests/svg/text/reftests/text-inline-size-001-ref.svg
new file mode 100644
index 000000000000..6abd211584ea
--- /dev/null
+++ b/testing/web-platform/tests/svg/text/reftests/text-inline-size-001-ref.svg
@@ -0,0 +1,50 @@
+<?xml version="1.0" encoding="utf-8"?>
+<svg id="svg-root"
+  width="100%" height="100%" viewBox="0 0 480 360"
+  xmlns="http://www.w3.org/2000/svg"
+  xmlns:xlink="http://www.w3.org/1999/xlink"
+  xmlns:html="http://www.w3.org/1999/xhtml">
+  <g id="testmeta">
+    <title>Text: Inline Size — 001</title>
+    <html:link rel="author"
+          title="Tavmjong Bah"
+          href="mailto:tavmjong@free.fr"/>
+  </g>
+
+  <style id="test-font" type="text/css">
+    /* Standard Font (if needed). */
+    @font-face {
+      font-family: FreeSans;
+      src: url("fonts/FreeSans.woff") format("woff"),
+           local("FreeSans");
+    }
+    text { font-family: FreeSans, sans-serif }
+  </style>
+
+  <style id="test-style" type="text/css">
+    /* Style that is being tested (if needed). */
+    text { font-family: FreeSans, sans-serif }
+  </style>
+
+  <g id="test-body-reference" style="font-size:16px;fill:black">
+    <g transform="translate(0,0)">
+      <text>
+        <tspan x="80" y="114.8">Lorem ipsum dolor sit amet, consectetur</tspan>
+        <tspan x="80" y="134.8">adipisicing elit,</tspan>
+      </text>
+    </g>
+    <g transform="translate(0,60)">
+      <text style="text-anchor:middle">
+        <tspan x="240" y="114.8">Lorem ipsum dolor sit amet, consectetur</tspan>
+        <tspan x="240" y="134.8">adipisicing elit,</tspan>
+      </text>
+    </g>
+    <g transform="translate(0,120)">
+      <text style="text-anchor:end">
+        <tspan x="400" y="114.8">Lorem ipsum dolor sit amet, consectetur</tspan>
+        <tspan x="400" y="134.8">adipisicing elit,</tspan>
+      </text>
+    </g>
+  </g>
+
+</svg>
diff --git a/testing/web-platform/tests/svg/text/reftests/text-inline-size-001.svg b/testing/web-platform/tests/svg/text/reftests/text-inline-size-001.svg
new file mode 100644
index 000000000000..ae1a10d190ac
--- /dev/null
+++ b/testing/web-platform/tests/svg/text/reftests/text-inline-size-001.svg
@@ -0,0 +1,44 @@
+<?xml version="1.0" encoding="utf-8"?>
+<svg id="svg-root"
+  width="100%" height="100%" viewBox="0 0 480 360"
+  xmlns="http://www.w3.org/2000/svg"
+  xmlns:xlink="http://www.w3.org/1999/xlink"
+  xmlns:html="http://www.w3.org/1999/xhtml">
+  <g id="testmeta">
+    <title>Text: Inline Size — 001</title>
+    <html:link rel="author"
+          title="Tavmjong Bah"
+          href="mailto:tavmjong@free.fr"/>
+    <html:link rel="help"
+          href="https://svgwg.org/svg2-draft/text.html#InlineSize"/>
+    <html:link rel="match"  href="text-inline-size-001-ref.svg" />
+  </g>
+
+  <style id="test-font" type="text/css">
+    /* Standard Font (if needed). */
+    @font-face {
+      font-family: FreeSans;
+      src: url("fonts/FreeSans.woff") format("woff"),
+           local("FreeSans");
+    }
+    text { font-family: FreeSans, sans-serif }
+  </style>
+
+  <style id="test-style" type="text/css">
+    /* Style that is being tested (if needed). */
+    text { font-family: FreeSans, sans-serif }
+  </style>
+
+  <g id="test-body-content" style="font-size:16px;line-spacing:1.25">
+    <g transform="translate(0,0)">
+      <text x="80" y="114.8" style="inline-size:320px">Lorem ipsum dolor sit amet, consectetur adipisicing elit,</text>
+    </g>
+    <g transform="translate(0,60)">
+      <text x="240" y="114.8" style="inline-size:320px;text-anchor:middle">Lorem ipsum dolor sit amet, consectetur adipisicing elit,</text>
+    </g>
+    <g transform="translate(0,120)">
+      <text x="400" y="114.8" style="inline-size:320px;text-anchor:end">Lorem ipsum dolor sit amet, consectetur adipisicing elit,</text>
+    </g>
+  </g>
+
+</svg>
diff --git a/testing/web-platform/tests/svg/text/reftests/text-inline-size-002-ref.svg b/testing/web-platform/tests/svg/text/reftests/text-inline-size-002-ref.svg
new file mode 100644
index 000000000000..66f771e310d4
--- /dev/null
+++ b/testing/web-platform/tests/svg/text/reftests/text-inline-size-002-ref.svg
@@ -0,0 +1,50 @@
+<?xml version="1.0" encoding="utf-8"?>
+<svg id="svg-root"
+  width="100%" height="100%" viewBox="0 0 480 360"
+  xmlns="http://www.w3.org/2000/svg"
+  xmlns:xlink="http://www.w3.org/1999/xlink"
+  xmlns:html="http://www.w3.org/1999/xhtml">
+  <g id="testmeta">
+    <title>Text in Shape — 002</title>
+    <html:link rel="author"
+          title="Tavmjong Bah"
+          href="mailto:tavmjong@free.fr"/>
+  </g>
+
+  <style id="test-font" type="text/css">
+    /* Standard Font (if needed). */
+    @font-face {
+      font-family: FreeSans;
+      src: url("fonts/FreeSans.woff") format("woff"),
+           local("FreeSans");
+    }
+    text { font-family: FreeSans, sans-serif }
+  </style>
+
+  <style id="test-style" type="text/css">
+    /* Style that is being tested (if needed). */
+    text { font-family: FreeSans, sans-serif }
+  </style>
+
+  <g id="test-body-reference" style="font-size:16px">
+    <g transform="translate(0,0)">
+      <text transform="translate(250,10) rotate(90)">
+        <tspan x="90" y="114.8">Lorem ipsum dolor sit amet,</tspan>
+        <tspan x="90" y="134.8">consectetur adipisicing elit,</tspan>
+      </text>
+    </g>
+    <g transform="translate(80,0)">
+      <text transform="translate(250,-40) rotate(90)" style="text-anchor:middle">
+        <tspan x="240" y="114.8">Lorem ipsum dolor sit amet,</tspan>
+        <tspan x="240" y="134.8">consectetur adipisicing elit,</tspan>
+      </text>
+    </g>
+    <g transform="translate(160,0)">
+      <text transform="translate(250,-90) rotate(90)" style="text-anchor:end">
+        <tspan x="390" y="114.8">Lorem ipsum dolor sit amet,</tspan>
+        <tspan x="390" y="134.8">consectetur adipisicing elit,</tspan>
+      </text>
+    </g>
+  </g>
+
+</svg>
diff --git a/testing/web-platform/tests/svg/text/reftests/text-inline-size-002.svg b/testing/web-platform/tests/svg/text/reftests/text-inline-size-002.svg
new file mode 100644
index 000000000000..141909c3e573
--- /dev/null
+++ b/testing/web-platform/tests/svg/text/reftests/text-inline-size-002.svg
@@ -0,0 +1,44 @@
+<?xml version="1.0" encoding="utf-8"?>
+<svg id="svg-root"
+  width="100%" height="100%" viewBox="0 0 480 360"
+  xmlns="http://www.w3.org/2000/svg"
+  xmlns:xlink="http://www.w3.org/1999/xlink"
+  xmlns:html="http://www.w3.org/1999/xhtml">
+  <g id="testmeta">
+    <title>Text in Shape — 002</title>
+    <html:link rel="author"
+          title="Tavmjong Bah"
+          href="mailto:tavmjong@free.fr"/>
+    <html:link rel="help"
+          href="https://svgwg.org/svg2-draft/text.html#InlineSize"/>
+    <html:link rel="match"  href="text-inline-size-002-ref.svg" />
+  </g>
+
+  <style id="test-font" type="text/css">
+    /* Standard Font (if needed). */
+    @font-face {
+      font-family: FreeSans;
+      src: url("fonts/FreeSans.woff") format("woff"),
+           local("FreeSans");
+    }
+    text { font-family: FreeSans, sans-serif }
+  </style>
+
+  <style id="test-style" type="text/css">
+    /* Style that is being tested (if needed). */
+    text { font-family: FreeSans, sans-serif }
+  </style>
+
+  <g id="test-body-content" style="font-size:16px;line-spacing:1.25;writing-mode:tb-rl">
+    <g transform="translate(0,0)">
+      <text x="140" y="100" style="inline-size:200px">Lorem ipsum dolor sit amet, consectetur adipisicing elit,</text>
+    </g>
+    <g transform="translate(80,0)">
+      <text x="140" y="200" style="inline-size:200px;text-anchor:middle">Lorem ipsum dolor sit amet, consectetur adipisicing elit,</text>
+    </g>
+    <g transform="translate(160,0)">
+      <text x="140" y="300" style="inline-size:200px;text-anchor:end">Lorem ipsum dolor sit amet, consectetur adipisicing elit,</text>
+    </g>
+  </g>
+
+</svg>
diff --git a/testing/web-platform/tests/svg/text/reftests/text-inline-size-003-ref.svg b/testing/web-platform/tests/svg/text/reftests/text-inline-size-003-ref.svg
new file mode 100644
index 000000000000..289b92a02ae5
--- /dev/null
+++ b/testing/web-platform/tests/svg/text/reftests/text-inline-size-003-ref.svg
@@ -0,0 +1,50 @@
+<?xml version="1.0" encoding="utf-8"?>
+<svg id="svg-root"
+  width="100%" height="100%" viewBox="0 0 480 360"
+  xmlns="http://www.w3.org/2000/svg"
+  xmlns:xlink="http://www.w3.org/1999/xlink"
+  xmlns:html="http://www.w3.org/1999/xhtml">
+  <g id="testmeta">
+    <title>Text: Inline Size — 003</title>
+    <html:link rel="author"
+          title="Tavmjong Bah"
+          href="mailto:tavmjong@free.fr"/>
+  </g>
+
+  <style id="test-font" type="text/css">
+    /* Standard Font (if needed). */
+    @font-face {
+      font-family: FreeSans;
+      src: url("fonts/FreeSans.woff") format("woff"),
+           local("FreeSans");
+    }
+    text { font-family: FreeSans, sans-serif }
+  </style>
+
+  <style id="test-style" type="text/css">
+    /* Style that is being tested (if needed). */
+    text { font-family: FreeSans, sans-serif }
+  </style>
+
+  <g id="test-body-reference" style="font-size:16px;direction:rtl">
+    <g transform="translate(0,0)">
+      <text>
+        <tspan x="400" y="114.8">لكن لا بد أن أوضح لك أن كل هذه الأفكار</tspan>
+        <tspan x="400" y="134.8">المغلوطة حول استنكار</tspan>
+      </text>
+    </g>
+    <g transform="translate(0,60)">
+      <text style="text-anchor:middle">
+        <tspan x="240" y="114.8">لكن لا بد أن أوضح لك أن كل هذه الأفكار</tspan>
+        <tspan x="240" y="134.8">المغلوطة حول استنكار</tspan>
+      </text>
+    </g>
+    <g transform="translate(0,120)">
+      <text style="text-anchor:end">
+        <tspan x="80" y="114.8">لكن لا بد أن أوضح لك أن كل هذه الأفكار</tspan>
+        <tspan x="80" y="134.8">المغلوطة حول استنكار</tspan>
+      </text>
+    </g>
+  </g>
+
+</svg>
diff --git a/testing/web-platform/tests/svg/text/reftests/text-inline-size-003.svg b/testing/web-platform/tests/svg/text/reftests/text-inline-size-003.svg
new file mode 100644
index 000000000000..9fcab5ba0adb
--- /dev/null
+++ b/testing/web-platform/tests/svg/text/reftests/text-inline-size-003.svg
@@ -0,0 +1,44 @@
+<?xml version="1.0" encoding="utf-8"?>
+<svg id="svg-root"
+  width="100%" height="100%" viewBox="0 0 480 360"
+  xmlns="http://www.w3.org/2000/svg"
+  xmlns:xlink="http://www.w3.org/1999/xlink"
+  xmlns:html="http://www.w3.org/1999/xhtml">
+  <g id="testmeta">
+    <title>Text: Inline Size — 003</title>
+    <html:link rel="author"
+          title="Tavmjong Bah"
+          href="mailto:tavmjong@free.fr"/>
+    <html:link rel="help"
+          href="https://svgwg.org/svg2-draft/text.html#InlineSize"/>
+    <html:link rel="match"  href="text-inline-size-003-ref.svg" />
+  </g>
+
+  <style id="test-font" type="text/css">
+    /* Standard Font (if needed). */
+    @font-face {
+      font-family: FreeSans;
+      src: url("fonts/FreeSans.woff") format("woff"),
+           local("FreeSans");
+    }
+    text { font-family: FreeSans, sans-serif }
+  </style>
+
+  <style id="test-style" type="text/css">
+    /* Style that is being tested (if needed). */
+    text { font-family: FreeSans, sans-serif }
+  </style>
+
+  <g id="test-body-content" style="font-size:16px;line-spacing:1.25;direction:rtl">
+    <g transform="translate(0,0)">
+      <text x="400" y="114.8" style="inline-size:320px">لكن لا بد أن أوضح لك أن كل هذه الأفكار المغلوطة حول استنكار</text>
+    </g>
+    <g transform="translate(0,60)">
+      <text x="240" y="114.8" style="inline-size:320px;text-anchor:middle">لكن لا بد أن أوضح لك أن كل هذه الأفكار المغلوطة حول استنكار</text>
+    </g>
+    <g transform="translate(0,120)">
+      <text x="80" y="114.8" style="inline-size:320px;text-anchor:end">لكن لا بد أن أوضح لك أن كل هذه الأفكار المغلوطة حول استنكار</text>
+    </g>
+  </g>
+
+</svg>
diff --git a/testing/web-platform/tests/svg/text/reftests/text-inline-size-005-ref.svg b/testing/web-platform/tests/svg/text/reftests/text-inline-size-005-ref.svg
new file mode 100644
index 000000000000..af756b69645d
--- /dev/null
+++ b/testing/web-platform/tests/svg/text/reftests/text-inline-size-005-ref.svg
@@ -0,0 +1,42 @@
+<?xml version="1.0" encoding="utf-8"?>
+<svg id="svg-root"
+  width="100%" height="100%" viewBox="0 0 480 360"
+  xmlns="http://www.w3.org/2000/svg"
+  xmlns:xlink="http://www.w3.org/1999/xlink"
+  xmlns:html="http://www.w3.org/1999/xhtml">
+  <g id="testmeta">
+    <title>Text: Inline Size — 005</title>
+    <html:link rel="author"
+          title="Tavmjong Bah"
+          href="mailto:tavmjong@free.fr"/>
+  </g>
+
+  <style id="test-font" type="text/css">
+    /* Standard Font (if needed). */
+    @font-face {
+      font-family: FreeSans;
+      src: url("fonts/FreeSans.woff") format("woff"),
+           local("FreeSans");
+    }
+    text { font-family: FreeSans, sans-serif }
+  </style>
+
+  <style id="test-style" type="text/css">
+    /* Style that is being tested (if needed). */
+    text { font-family: FreeSans, sans-serif }
+  </style>
+
+  <g id="test-body-reference" style="font-size:16px">
+    <g transform="translate(0,0)">
+      <text>
+        <tspan x="80" y="114.8">Lorem ipsum dolor sit amet, consectetur</tspan>
+        <tspan x="80" y="149.6">adipiscing <tspan style="font-size:32px">elit</tspan>, sed do eiusmod tempor</tspan>
+        <tspan x="80" y="174.8">incididunt ut labore et dolore magna aliqua. Ut</tspan>
+        <tspan x="80" y="209.6">enim ad minim veniam, <tspan style="font-size:32px">quis</tspan> nostrud</tspan>
+        <tspan x="80" y="234.8">exercitation ullamco laboris <tspan style="font-size:8px">nisi</tspan> ut aliquip ex ea</tspan>
+        <tspan x="80" y="254.8">commodo consequat.</tspan>
+      </text>
+    </g>
+  </g>
+
+</svg>
diff --git a/testing/web-platform/tests/svg/text/reftests/text-inline-size-005.svg b/testing/web-platform/tests/svg/text/reftests/text-inline-size-005.svg
new file mode 100644
index 000000000000..e6a1d75c0502
--- /dev/null
+++ b/testing/web-platform/tests/svg/text/reftests/text-inline-size-005.svg
@@ -0,0 +1,38 @@
+<?xml version="1.0" encoding="utf-8"?>
+<svg id="svg-root"
+  width="100%" height="100%" viewBox="0 0 480 360"
+  xmlns="http://www.w3.org/2000/svg"
+  xmlns:xlink="http://www.w3.org/1999/xlink"
+  xmlns:html="http://www.w3.org/1999/xhtml">
+  <g id="testmeta">
+    <title>Text: Inline Size — 005</title>
+    <html:link rel="author"
+          title="Tavmjong Bah"
+          href="mailto:tavmjong@free.fr"/>
+    <html:link rel="help"
+          href="https://svgwg.org/svg2-draft/text.html#InlineSize"/>
+    <html:link rel="match"  href="text-inline-size-005-ref.svg" />
+  </g>
+
+  <style id="test-font" type="text/css">
+    /* Standard Font (if needed). */
+    @font-face {
+      font-family: FreeSans;
+      src: url("fonts/FreeSans.woff") format("woff"),
+           local("FreeSans");
+    }
+    text { font-family: FreeSans, sans-serif }
+  </style>
+
+  <style id="test-style" type="text/css">
+    /* Style that is being tested (if needed). */
+    text { font-family: FreeSans, sans-serif }
+  </style>
+
+  <g id="test-body-content" style="font-size:16px;line-height:1.25">
+    <g transform="translate(0,0)">
+      <text x="80" y="114.8" style="inline-size:320px" xml:space="preserve">Lorem ipsum dolor sit amet, consectetur adipiscing <tspan style="font-size:32px">elit</tspan>, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, <tspan style="font-size:2em">quis</tspan> nostrud exercitation ullamco laboris <tspan style="font-size:8px">nisi</tspan> ut aliquip ex ea commodo consequat.</text>
+    </g>
+  </g>
+
+</svg>
diff --git a/testing/web-platform/tests/svg/text/reftests/text-inline-size-006-ref.svg b/testing/web-platform/tests/svg/text/reftests/text-inline-size-006-ref.svg
new file mode 100644
index 000000000000..9c32e841a614
--- /dev/null
+++ b/testing/web-platform/tests/svg/text/reftests/text-inline-size-006-ref.svg
@@ -0,0 +1,42 @@
+<?xml version="1.0" encoding="utf-8"?>
+<svg id="svg-root"
+  width="100%" height="100%" viewBox="0 0 480 360"
+  xmlns="http://www.w3.org/2000/svg"
+  xmlns:xlink="http://www.w3.org/1999/xlink"
+  xmlns:html="http://www.w3.org/1999/xhtml">
+  <g id="testmeta">
+    <title>Text: Inline Size — 006</title>
+    <html:link rel="author"
+          title="Tavmjong Bah"
+          href="mailto:tavmjong@free.fr"/>
+  </g>
+
+  <style id="test-font" type="text/css">
+    /* Standard Font (if needed). */
+    @font-face {
+      font-family: FreeSans;
+      src: url("fonts/FreeSans.woff") format("woff"),
+           local("FreeSans");
+    }
+    text { font-family: FreeSans, sans-serif }
+  </style>
+
+  <style id="test-style" type="text/css">
+    /* Style that is being tested (if needed). */
+    text { font-family: FreeSans, sans-serif }
+  </style>
+
+  <g id="test-body-reference" style="font-size:16px">
+    <g transform="translate(0,0)">
+      <text>
+        <tspan x="80" y="114.8">Lorem ipsum dolor sit amet, consectetur</tspan>
+        <tspan x="80" y="134.8">adipiscing <tspan style="font-size:32px">elit</tspan>, sed do eiusmod tempor</tspan>
+        <tspan x="80" y="154.8">incididunt ut labore et dolore magna aliqua. Ut</tspan>
+        <tspan x="80" y="174.8">enim ad minim veniam, <tspan style="font-size:32px">quis</tspan> nostrud</tspan>
+        <tspan x="80" y="194.8">exercitation ullamco laboris <tspan style="font-size:8px">nisi</tspan> ut aliquip ex ea</tspan>
+        <tspan x="80" y="214.8">commodo consequat.</tspan>
+      </text>
+    </g>
+  </g>
+
+</svg>
diff --git a/testing/web-platform/tests/svg/text/reftests/text-inline-size-006.svg b/testing/web-platform/tests/svg/text/reftests/text-inline-size-006.svg
new file mode 100644
index 000000000000..b84e3d5302fe
--- /dev/null
+++ b/testing/web-platform/tests/svg/text/reftests/text-inline-size-006.svg
@@ -0,0 +1,38 @@
+<?xml version="1.0" encoding="utf-8"?>
+<svg id="svg-root"
+  width="100%" height="100%" viewBox="0 0 480 360"
+  xmlns="http://www.w3.org/2000/svg"
+  xmlns:xlink="http://www.w3.org/1999/xlink"
+  xmlns:html="http://www.w3.org/1999/xhtml">
+  <g id="testmeta">
+    <title>Text: Inline Size — 006</title>
+    <html:link rel="author"
+          title="Tavmjong Bah"
+          href="mailto:tavmjong@free.fr"/>
+    <html:link rel="help"
+          href="https://svgwg.org/svg2-draft/text.html#InlineSize"/>
+    <html:link rel="match"  href="text-inline-size-006-ref.svg" />
+  </g>
+
+  <style id="test-font" type="text/css">
+    /* Standard Font (if needed). */
+    @font-face {
+      font-family: FreeSans;
+      src: url("fonts/FreeSans.woff") format("woff"),
+           local("FreeSans");
+    }
+    text { font-family: FreeSans, sans-serif }
+  </style>
+
+  <style id="test-style" type="text/css">
+    /* Style that is being tested (if needed). */
+    text { font-family: FreeSans, sans-serif }
+  </style>
+
+  <g id="test-body-content" style="font-size:16px;line-height:1.25">
+    <g transform="translate(0,0)">
+      <text x="80" y="114.8" style="inline-size:320px">Lorem ipsum dolor sit amet, consectetur adipiscing <tspan style="font-size:32px;line-height:0">elit</tspan>, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, <tspan style="font-size:2em;line-height:0">quis</tspan> nostrud exercitation ullamco laboris <tspan style="font-size:8px">nisi</tspan> ut aliquip ex ea commodo consequat.</text>
+    </g>
+  </g>
+
+</svg>
diff --git a/testing/web-platform/tests/svg/text/reftests/text-inline-size-007-ref.svg b/testing/web-platform/tests/svg/text/reftests/text-inline-size-007-ref.svg
new file mode 100644
index 000000000000..181785117fb4
--- /dev/null
+++ b/testing/web-platform/tests/svg/text/reftests/text-inline-size-007-ref.svg
@@ -0,0 +1,42 @@
+<?xml version="1.0" encoding="utf-8"?>
+<svg id="svg-root"
+  width="100%" height="100%" viewBox="0 0 480 360"
+  xmlns="http://www.w3.org/2000/svg"
+  xmlns:xlink="http://www.w3.org/1999/xlink"
+  xmlns:html="http://www.w3.org/1999/xhtml">
+  <g id="testmeta">
+    <title>Text: Inline Size — 006</title>
+    <html:link rel="author"
+          title="Tavmjong Bah"
+          href="mailto:tavmjong@free.fr"/>
+  </g>
+
+  <style id="test-font" type="text/css">
+    /* Standard Font (if needed). */
+    @font-face {
+      font-family: FreeSans;
+      src: url("fonts/FreeSans.woff") format("woff"),
+           local("FreeSans");
+    }
+    text { font-family: FreeSans, sans-serif }
+  </style>
+
+  <style id="test-style" type="text/css">
+    /* Style that is being tested (if needed). */
+    text { font-family: FreeSans, sans-serif }
+  </style>
+
+  <g id="test-body-reference" style="font-size:16px">
+    <g transform="translate(0,0)">
+      <text>
+        <tspan x="80" y="114.8">Lorem ipsum dolor sit amet, consectetur</tspan>
+        <tspan x="80" y="139.6">adipiscing <tspan style="font-size:32px">elit</tspan>, sed do eiusmod tempor</tspan>
+        <tspan x="80" y="159.6">incididunt ut labore et dolore magna aliqua. Ut</tspan>
+        <tspan x="80" y="184.4">enim ad minim veniam, <tspan style="font-size:32px">quis</tspan> nostrud</tspan>
+        <tspan x="80" y="204.4">exercitation ullamco laboris <tspan style="font-size:8px">nisi</tspan> ut aliquip ex ea</tspan>
+        <tspan x="80" y="226.8">commodo consequat.</tspan>
+      </text>
+    </g>
+  </g>
+
+</svg>
diff --git a/testing/web-platform/tests/svg/text/reftests/text-inline-size-007.svg b/testing/web-platform/tests/svg/text/reftests/text-inline-size-007.svg
new file mode 100644
index 000000000000..9d18b52d2ee9
--- /dev/null
+++ b/testing/web-platform/tests/svg/text/reftests/text-inline-size-007.svg
@@ -0,0 +1,38 @@
+<?xml version="1.0" encoding="utf-8"?>
+<svg id="svg-root"
+  width="100%" height="100%" viewBox="0 0 480 360"
+  xmlns="http://www.w3.org/2000/svg"
+  xmlns:xlink="http://www.w3.org/1999/xlink"
+  xmlns:html="http://www.w3.org/1999/xhtml">
+  <g id="testmeta">
+    <title>Text: Inline Size — 006</title>
+    <html:link rel="author"
+          title="Tavmjong Bah"
+          href="mailto:tavmjong@free.fr"/>
+    <html:link rel="help"
+          href="https://svgwg.org/svg2-draft/text.html#InlineSize"/>
+    <html:link rel="match"  href="text-inline-size-007-ref.svg" />
+  </g>
+
+  <style id="test-font" type="text/css">
+    /* Standard Font (if needed). */
+    @font-face {
+      font-family: FreeSans;
+      src: url("fonts/FreeSans.woff") format("woff"),
+           local("FreeSans");
+    }
+    text { font-family: FreeSans, sans-serif }
+  </style>
+
+  <style id="test-style" type="text/css">
+    /* Style that is being tested (if needed). */
+    text { font-family: FreeSans, sans-serif }
+  </style>
+
+  <g id="test-body-content" style="font-size:16px">
+    <g transform="translate(0,0)">
+      <text x="80" y="114.8" style="inline-size:320px;line-height:20px">Lorem ipsum dolor sit amet, consectetur adipiscing <tspan style="font-size:32px">elit</tspan>, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, <tspan style="font-size:2em">quis</tspan> nostrud exercitation ullamco laboris <tspan style="font-size:8px">nisi</tspan> ut aliquip ex ea commodo consequat.</text>
+    </g>
+  </g>
+
+</svg>
diff --git a/testing/web-platform/tests/svg/text/reftests/text-inline-size-101-ref.svg b/testing/web-platform/tests/svg/text/reftests/text-inline-size-101-ref.svg
new file mode 100644
index 000000000000..ab41dea8da5c
--- /dev/null
+++ b/testing/web-platform/tests/svg/text/reftests/text-inline-size-101-ref.svg
@@ -0,0 +1,50 @@
+<?xml version="1.0" encoding="utf-8"?>
+<svg id="svg-root"
+  width="100%" height="100%" viewBox="0 0 480 360"
+  xmlns="http://www.w3.org/2000/svg"
+  xmlns:xlink="http://www.w3.org/1999/xlink"
+  xmlns:html="http://www.w3.org/1999/xhtml">
+  <g id="testmeta">
+    <title>Text: Inline Size — 101</title>
+    <html:link rel="author"
+          title="Tavmjong Bah"
+          href="mailto:tavmjong@free.fr"/>
+  </g>
+
+  <style id="test-font" type="text/css">
+    /* Standard Font (if needed). */
+    @font-face {
+      font-family: FreeSans;
+      src: url("fonts/FreeSans.woff") format("woff"),
+           local("FreeSans");
+    }
+    text { font-family: FreeSans, sans-serif }
+  </style>
+
+  <style id="test-style" type="text/css">
+    /* Style that is being tested (if needed). */
+    text { font-family: FreeSans, sans-serif }
+  </style>
+
+  <g id="test-body-reference" style="font-size:16px">
+    <g transform="translate(0,0)">
+      <text>
+        <tspan x="80" y="114.8">Lorem ipsum dolor sit amet, consectetur</tspan>
+        <tspan x="80" y="134.8">adipisicing elit,</tspan>
+      </text>
+    </g>
+    <g transform="translate(0,60)">
+      <text style="text-anchor:middle">
+        <tspan x="240" y="114.8">Lorem ipsum dolor sit amet, consectetur</tspan>
+        <tspan x="240" y="134.8">adipisicing elit,</tspan>
+      </text>
+    </g>
+    <g transform="translate(0,120)">
+      <text style="text-anchor:end">
+        <tspan x="400" y="114.8">Lorem ipsum dolor sit amet, consectetur</tspan>
+        <tspan x="400" y="134.8">adipisicing elit,</tspan>
+      </text>
+    </g>
+  </g>
+
+</svg>
diff --git a/testing/web-platform/tests/svg/text/reftests/text-inline-size-101.svg b/testing/web-platform/tests/svg/text/reftests/text-inline-size-101.svg
new file mode 100644
index 000000000000..fa8bf5ef5cfe
--- /dev/null
+++ b/testing/web-platform/tests/svg/text/reftests/text-inline-size-101.svg
@@ -0,0 +1,44 @@
+<?xml version="1.0" encoding="utf-8"?>
+<svg id="svg-root"
+  width="100%" height="100%" viewBox="0 0 480 360"
+  xmlns="http://www.w3.org/2000/svg"
+  xmlns:xlink="http://www.w3.org/1999/xlink"
+  xmlns:html="http://www.w3.org/1999/xhtml">
+  <g id="testmeta">
+    <title>Text: Inline Size — 101</title>
+    <html:link rel="author"
+          title="Tavmjong Bah"
+          href="mailto:tavmjong@free.fr"/>
+    <html:link rel="help"
+          href="https://svgwg.org/svg2-draft/text.html#InlineSize"/>
+    <html:link rel="match"  href="text-inline-size-101-ref.svg" />
+  </g>
+
+  <style id="test-font" type="text/css">
+    /* Standard Font (if needed). */
+    @font-face {
+      font-family: FreeSans;
+      src: url("fonts/FreeSans.woff") format("woff"),
+           local("FreeSans");
+    }
+    text { font-family: FreeSans, sans-serif }
+  </style>
+
+  <style id="test-style" type="text/css">
+    /* Style that is being tested (if needed). */
+    text { font-family: FreeSans, sans-serif }
+  </style>
+
+  <g id="test-body-content" style="font-size:16px;line-spacing:1.25">
+    <g transform="translate(0,0)">
+      <text x="80" y="114.8" style="inline-size:66.66667%">Lorem ipsum dolor sit amet, consectetur adipisicing elit,</text>
+    </g>
+    <g transform="translate(0,60)">
+      <text x="240" y="114.8" style="inline-size:66.66667%;text-anchor:middle">Lorem ipsum dolor sit amet, consectetur adipisicing elit,</text>
+    </g>
+    <g transform="translate(0,120)">
+      <text x="400" y="114.8" style="inline-size:66.66667%;text-anchor:end">Lorem ipsum dolor sit amet, consectetur adipisicing elit,</text>
+    </g>
+  </g>
+
+</svg>
diff --git a/testing/web-platform/tests/svg/text/reftests/text-inline-size-201-ref.svg b/testing/web-platform/tests/svg/text/reftests/text-inline-size-201-ref.svg
new file mode 100644
index 000000000000..b1eb7c747354
--- /dev/null
+++ b/testing/web-platform/tests/svg/text/reftests/text-inline-size-201-ref.svg
@@ -0,0 +1,54 @@
+<?xml version="1.0" encoding="utf-8"?>
+<svg id="svg-root"
+  width="100%" height="100%" viewBox="0 0 480 360"
+  xmlns="http://www.w3.org/2000/svg"
+  xmlns:xlink="http://www.w3.org/1999/xlink"
+  xmlns:html="http://www.w3.org/1999/xhtml">
+  <g id="testmeta">
+    <title>Text in Shape — 201</title>
+    <html:link rel="author"
+          title="Tavmjong Bah"
+          href="mailto:tavmjong@free.fr"/>
+  </g>
+
+  <style id="test-font" type="text/css">
+    /* Standard Font (if needed). */
+    @font-face {
+      font-family: FreeSans;
+      src: url("fonts/FreeSans.woff") format("woff"),
+           local("FreeSans");
+    }
+    text { font-family: FreeSans, sans-serif }
+  </style>
+
+  <style id="test-style" type="text/css">
+    /* Style that is being tested (if needed). */
+    text { font-family: FreeSans, sans-serif }
+  </style>
+
+  <g id="test-body-reference" style="font-size:16px">
+    <g transform="translate(0,0)">
+      <text style="writing-mode:tb-rl">
+        <tspan x="140" y="100">漢字</tspan>
+        <tspan x="140" y="132">Lorem ipsum</tspan>
+        <tspan x="140" y="227.7">漢字</tspan>
+      </text>
+    </g>
+    <g transform="translate(80,0)">
+      <text transform="translate(250,-40) rotate(90)">
+        <tspan x="140" y="110">漢字Lorem ipsum!漢字</tspan>
+      </text>
+    </g>
+    <g transform="translate(160,0)">
+      <text transform="translate(250,-40) rotate(90)">
+        <tspan x="140" y="110">漢字!لكن لا بد أن漢字</tspan>
+      </text>
+    </g>
+    <g transform="translate(240,0)">
+      <text transform="translate(250,-40) rotate(90)" style="direction:rtl;text-anchor:end">
+        <tspan x="140" y="110">漢字!لكن لا بد أن漢字</tspan>
+      </text>
+    </g>
+  </g>
+
+</svg>
diff --git a/testing/web-platform/tests/svg/text/reftests/text-inline-size-201.svg b/testing/web-platform/tests/svg/text/reftests/text-inline-size-201.svg
new file mode 100644
index 000000000000..5ab3213a69be
--- /dev/null
+++ b/testing/web-platform/tests/svg/text/reftests/text-inline-size-201.svg
@@ -0,0 +1,48 @@
+<?xml version="1.0" encoding="utf-8"?>
+<svg id="svg-root"
+  width="100%" height="100%" viewBox="0 0 480 360"
+  xmlns="http://www.w3.org/2000/svg"
+  xmlns:xlink="http://www.w3.org/1999/xlink"
+  xmlns:html="http://www.w3.org/1999/xhtml">
+  <g id="testmeta">
+    <title>Text in Shape — 201</title>
+    <html:link rel="author"
+          title="Tavmjong Bah"
+          href="mailto:tavmjong@free.fr"/>
+    <html:link rel="help"
+          href="https://svgwg.org/svg2-draft/text.html#InlineSize"/>
+    <html:link rel="match"  href="text-inline-size-201-ref.svg" />
+  </g>
+
+  <style id="test-font" type="text/css">
+    /* Standard Font (if needed). */
+    @font-face {
+      font-family: FreeSans;
+      src: url("fonts/FreeSans.woff") format("woff"),
+           local("FreeSans");
+    }
+    text { font-family: FreeSans, sans-serif }
+  </style>
+
+  <style id="test-style" type="text/css">
+    /* Style that is being tested (if needed). */
+    text { font-family: FreeSans, sans-serif }
+  </style>
+
+  <!-- Lorem ipsum dolor sit amet, consectetur adipisicing elit, -->
+  <g id="test-body-content" style="font-size:16px;line-spacing:1.25;writing-mode:tb-rl">
+    <g transform="translate(0,0)">
+      <text x="140" y="100" style="inline-size:200px">漢字Lorem ipsum!漢字</text>
+    </g>
+    <g transform="translate(80,0)" style="text-orientation:sideways">
+      <text x="140" y="100" style="inline-size:200px">漢字Lorem ipsum!漢字</text>
+    </g>
+    <g transform="translate(160,0)" style="text-orientation:sideways">
+      <text x="140" y="100" style="inline-size:200px">漢字!لكن لا بد أن漢字</text>
+    </g>
+    <g transform="translate(240,0)" style="direction:rtl;text-orientation:sideways">
+      <text x="140" y="100" style="inline-size:200px">漢字!لكن لا بد أن漢字</text>
+    </g>
+  </g>
+
+</svg>
diff --git a/testing/web-platform/tests/svg/text/visualtests/text-inline-size-001-visual.svg b/testing/web-platform/tests/svg/text/visualtests/text-inline-size-001-visual.svg
new file mode 100644
index 000000000000..086bab33b003
--- /dev/null
+++ b/testing/web-platform/tests/svg/text/visualtests/text-inline-size-001-visual.svg
@@ -0,0 +1,85 @@
+<?xml version="1.0" encoding="utf-8"?>
+<svg id="svg-root"
+  width="100%" height="100%" viewBox="0 0 480 360"
+  xmlns="http://www.w3.org/2000/svg"
+  xmlns:xlink="http://www.w3.org/1999/xlink"
+  xmlns:html="http://www.w3.org/1999/xhtml">
+  <g id="testmeta">
+    <title>Text: Inline Size — 001</title>
+    <html:link rel="author"
+          title="Tavmjong Bah"
+          href="mailto:tavmjong@free.fr"/>
+    <html:link rel="reviewer"
+          title="NAME_OF_REVIEWER"
+          href="mailto:EMAIL OR http://CONTACT_PAGE" />
+          <!-- YYYY-MM-DD -->
+    <html:link rel="help"
+          href="https://svgwg.org/svg2-draft/text.html#InlineSize"/>
+    <metadata class="flags">TOKENS</metadata>
+    <desc class="assert">TEST ASSERTION</desc>
+  </g>
+
+  <style id="test-font" type="text/css">
+    /* Standard Font (if needed). */
+    @font-face {
+      font-family: FreeSans;
+      src: url("fonts/FreeSans.woff") format("woff"),
+           local("FreeSans");
+    }
+    text { font-family: FreeSans, sans-serif }
+  </style>
+
+  <style id="test-style" type="text/css">
+    /* Style that is being tested (if needed). */
+    text { font-family: FreeSans, sans-serif }
+  </style>
+
+  <defs>
+    <path id="TestPath" d="m 80,100 0,40 m 320,-40 0,40"/>
+  </defs>
+
+  <text id="title" x="240" y="50" style="fill:black; font-size:24px; text-anchor:middle;">Text 'inline-size' — 001</text>
+  <a href="https://svgwg.org/svg2-draft/text.html#InlineSize">
+    <text id="source" x="240" y="70" style="fill:black; font-size:12px; text-anchor:middle;">https://svgwg.org/svg2-draft/text.html#InlineSize</text>
+  </a>
+
+  <g id="test-body-reference" style="font-size:16px;fill:red">
+    <g transform="translate(0,0)">
+      <use xlink:href="#TestPath" style="fill:none;stroke:lightblue"/>
+      <circle cx="80" cy="114.8" r="1,0" style="fill:lightblue"/>
+      <text>
+        <tspan x="80" y="114.8">Lorem ipsum dolor sit amet, consectetur</tspan>
+        <tspan x="80" y="134.8">adipisicing elit,</tspan>
+      </text>
+    </g>
+    <g transform="translate(0,60)">
+      <use xlink:href="#TestPath" style="fill:none;stroke:lightblue"/>
+      <circle cx="240" cy="114.8" r="1,0" style="fill:lightblue"/>
+      <text style="text-anchor:middle">
+        <tspan x="240" y="114.8">Lorem ipsum dolor sit amet, consectetur</tspan>
+        <tspan x="240" y="134.8">adipisicing elit,</tspan>
+      </text>
+    </g>
+    <g transform="translate(0,120)">
+      <use xlink:href="#TestPath" style="fill:none;stroke:lightblue"/>
+      <circle cx="400" cy="114.8" r="1,0" style="fill:lightblue"/>
+      <text style="text-anchor:end">
+        <tspan x="400" y="114.8">Lorem ipsum dolor sit amet, consectetur</tspan>
+        <tspan x="400" y="134.8">adipisicing elit,</tspan>
+      </text>
+    </g>
+  </g>
+
+  <g id="test-body-content" style="font-size:16px;line-spacing:1.25;fill:green">
+    <g transform="translate(0,0)">
+      <text x="80" y="114.8" style="inline-size:320px">Lorem ipsum dolor sit amet, consectetur adipisicing elit,</text>
+    </g>
+    <g transform="translate(0,60)">
+      <text x="240" y="114.8" style="inline-size:320px;text-anchor:middle">Lorem ipsum dolor sit amet, consectetur adipisicing elit,</text>
+    </g>
+    <g transform="translate(0,120)">
+      <text x="400" y="114.8" style="inline-size:320px;text-anchor:end">Lorem ipsum dolor sit amet, consectetur adipisicing elit,</text>
+    </g>
+  </g>
+
+</svg>
diff --git a/testing/web-platform/tests/svg/text/visualtests/text-inline-size-002-visual.svg b/testing/web-platform/tests/svg/text/visualtests/text-inline-size-002-visual.svg
new file mode 100644
index 000000000000..7f58973ce359
--- /dev/null
+++ b/testing/web-platform/tests/svg/text/visualtests/text-inline-size-002-visual.svg
@@ -0,0 +1,82 @@
+<?xml version="1.0" encoding="utf-8"?>
+<svg id="svg-root"
+  width="100%" height="100%" viewBox="0 0 480 360"
+  xmlns="http://www.w3.org/2000/svg"
+  xmlns:xlink="http://www.w3.org/1999/xlink"
+  xmlns:html="http://www.w3.org/1999/xhtml">
+  <g id="testmeta">
+    <title>Text in Shape — 002</title>
+    <html:link rel="author"
+          title="Tavmjong Bah"
+          href="mailto:tavmjong@free.fr"/>
+    <html:link rel="reviewer"
+          title="NAME_OF_REVIEWER"
+          href="mailto:EMAIL OR http://CONTACT_PAGE" />
+          <!-- YYYY-MM-DD -->
+    <html:link rel="help"
+          href="https://svgwg.org/svg2-draft/text.html#InlineSize"/>
+    <metadata class="flags">TOKENS</metadata>
+    <desc class="assert">TEST ASSERTION</desc>
+  </g>
+
+  <style id="test-font" type="text/css">
+    /* Standard Font (if needed). */
+    @font-face {
+      font-family: FreeSans;
+      src: url("fonts/FreeSans.woff") format("woff"),
+           local("FreeSans");
+    }
+    text { font-family: FreeSans, sans-serif }
+  </style>
+
+  <style id="test-style" type="text/css">
+    /* Style that is being tested (if needed). */
+    text { font-family: FreeSans, sans-serif }
+  </style>
+
+  <defs>
+    <path id="TestPath" d="m 110,100 40,0 m -40,200 40,0"/>
+  </defs>
+
+  <text id="title" x="240" y="50" style="fill:black; font-size:24px; text-anchor:middle;">Text 'inline-size' — 002</text>
+  <a href="https://svgwg.org/svg2-draft/text.html#InlineSize">
+    <text id="source" x="240" y="70" style="fill:black; font-size:12px; text-anchor:middle;">https://svgwg.org/svg2-draft/text.html#InlineSize</text>
+  </a>
+
+  <g id="test-body-reference" style="font-size:16px;fill:red">
+    <g transform="translate(0,0)">
+      <text transform="translate(250,10) rotate(90)">
+        <tspan x="90" y="114.8">Lorem ipsum dolor sit amet,</tspan>
+        <tspan x="90" y="134.8">consectetur adipisicing elit,</tspan>
+      </text>
+    </g>
+    <g transform="translate(80,0)">
+      <text transform="translate(250,-40) rotate(90)" style="text-anchor:middle">
+        <tspan x="240" y="114.8">Lorem ipsum dolor sit amet,</tspan>
+        <tspan x="240" y="134.8">consectetur adipisicing elit,</tspan>
+      </text>
+    </g>
+    <g transform="translate(160,0)">
+      <text transform="translate(250,-90) rotate(90)" style="text-anchor:end">
+        <tspan x="390" y="114.8">Lorem ipsum dolor sit amet,</tspan>
+        <tspan x="390" y="134.8">consectetur adipisicing elit,</tspan>
+      </text>
+    </g>
+  </g>
+
+  <g id="test-body-content" style="font-size:16px;line-spacing:1.25;writing-mode:tb-rl;fill:green">
+    <g transform="translate(0,0)">
+      <use xlink:href="#TestPath" style="fill:none;stroke:lightblue"/>
+      <text x="140" y="100" style="inline-size:200px">Lorem ipsum dolor sit amet, consectetur adipisicing elit,</text>
+    </g>
+    <g transform="translate(80,0)">
+      <use xlink:href="#TestPath" style="fill:none;stroke:lightblue"/>
+      <text x="140" y="200" style="inline-size:200px;text-anchor:middle">Lorem ipsum dolor sit amet, consectetur adipisicing elit,</text>
+    </g>
+    <g transform="translate(160,0)">
+      <use xlink:href="#TestPath" style="fill:none;stroke:lightblue"/>
+      <text x="140" y="300" style="inline-size:200px;text-anchor:end">Lorem ipsum dolor sit amet, consectetur adipisicing elit,</text>
+    </g>
+  </g>
+
+</svg>
diff --git a/testing/web-platform/tests/svg/text/visualtests/text-inline-size-003-visual.svg b/testing/web-platform/tests/svg/text/visualtests/text-inline-size-003-visual.svg
new file mode 100644
index 000000000000..19bf0dc9d53d
--- /dev/null
+++ b/testing/web-platform/tests/svg/text/visualtests/text-inline-size-003-visual.svg
@@ -0,0 +1,82 @@
+<?xml version="1.0" encoding="utf-8"?>
+<svg id="svg-root"
+  width="100%" height="100%" viewBox="0 0 480 360"
+  xmlns="http://www.w3.org/2000/svg"
+  xmlns:xlink="http://www.w3.org/1999/xlink"
+  xmlns:html="http://www.w3.org/1999/xhtml">
+  <g id="testmeta">
+    <title>Text: Inline Size — 003</title>
+    <html:link rel="author"
+          title="Tavmjong Bah"
+          href="mailto:tavmjong@free.fr"/>
+    <html:link rel="reviewer"
+          title="NAME_OF_REVIEWER"
+          href="mailto:EMAIL OR http://CONTACT_PAGE" />
+          <!-- YYYY-MM-DD -->
+    <html:link rel="help"
+          href="https://svgwg.org/svg2-draft/text.html#InlineSize"/>
+    <metadata class="flags">TOKENS</metadata>
+    <desc class="assert">TEST ASSERTION</desc>
+  </g>
+
+  <style id="test-font" type="text/css">
+    /* Standard Font (if needed). */
+    @font-face {
+      font-family: FreeSans;
+      src: url("fonts/FreeSans.woff") format("woff"),
+           local("FreeSans");
+    }
+    text { font-family: FreeSans, sans-serif }
+  </style>
+
+  <style id="test-style" type="text/css">
+    /* Style that is being tested (if needed). */
+    text { font-family: FreeSans, sans-serif }
+  </style>
+
+  <defs>
+    <path id="TestPath" d="m 80,100 0,40 m 320,-40 0,40"/>
+  </defs>
+
+  <text id="title" x="240" y="50" style="fill:black; font-size:24px; text-anchor:middle;">Text 'inline-size' — 003</text>
+  <a href="https://svgwg.org/svg2-draft/text.html#InlineSize">
+    <text id="source" x="240" y="70" style="fill:black; font-size:12px; text-anchor:middle;">https://svgwg.org/svg2-draft/text.html#InlineSize</text>
+  </a>
+
+  <g id="test-body-reference" style="font-size:16px;direction:rtl;fill:red">
+    <g transform="translate(0,0)">
+      <text>
+        <tspan x="400" y="114.8">لكن لا بد أن أوضح لك أن كل هذه الأفكار</tspan>
+        <tspan x="400" y="134.8">المغلوطة حول استنكار</tspan>
+      </text>
+    </g>
+    <g transform="translate(0,60)">
+      <text style="text-anchor:middle">
+        <tspan x="240" y="114.8">لكن لا بد أن أوضح لك أن كل هذه الأفكار</tspan>
+        <tspan x="240" y="134.8">المغلوطة حول استنكار</tspan>
+      </text>
+    </g>
+    <g transform="translate(0,120)">
+      <text style="text-anchor:end">
+        <tspan x="80" y="114.8">لكن لا بد أن أوضح لك أن كل هذه الأفكار</tspan>
+        <tspan x="80" y="134.8">المغلوطة حول استنكار</tspan>
+      </text>
+    </g>
+  </g>
+
+  <g id="test-body-content" style="font-size:16px;line-spacing:1.25;direction:rtl;fill:green">
+    <g transform="translate(0,0)">
+      <use xlink:href="#TestPath" style="fill:none;stroke:lightblue"/>
+      <text x="400" y="114.8" style="inline-size:320px">لكن لا بد أن أوضح لك أن كل هذه الأفكار المغلوطة حول استنكار</text>
+    </g>
+    <g transform="translate(0,60)">
+      <use xlink:href="#TestPath" style="fill:none;stroke:lightblue"/>
+      <text x="240" y="114.8" style="inline-size:320px;text-anchor:middle">لكن لا بد أن أوضح لك أن كل هذه الأفكار المغلوطة حول استنكار</text>
+    </g>
+    <g transform="translate(0,120)">
+      <use xlink:href="#TestPath" style="fill:none;stroke:lightblue"/>
+      <text x="80" y="114.8" style="inline-size:320px;text-anchor:end">لكن لا بد أن أوضح لك أن كل هذه الأفكار المغلوطة حول استنكار</text>
+    </g>
+  </g>
+
+</svg>
diff --git a/testing/web-platform/tests/svg/text/visualtests/text-inline-size-005-visual.svg b/testing/web-platform/tests/svg/text/visualtests/text-inline-size-005-visual.svg
new file mode 100644
index 000000000000..dab467e1221b
--- /dev/null
+++ b/testing/web-platform/tests/svg/text/visualtests/text-inline-size-005-visual.svg
@@ -0,0 +1,66 @@
+<?xml version="1.0" encoding="utf-8"?>
+<svg id="svg-root"
+  width="100%" height="100%" viewBox="0 0 480 360"
+  xmlns="http://www.w3.org/2000/svg"
+  xmlns:xlink="http://www.w3.org/1999/xlink"
+  xmlns:html="http://www.w3.org/1999/xhtml">
+  <g id="testmeta">
+    <title>Text: Inline Size — 005</title>
+    <html:link rel="author"
+          title="Tavmjong Bah"
+          href="mailto:tavmjong@free.fr"/>
+    <html:link rel="reviewer"
+          title="NAME_OF_REVIEWER"
+          href="mailto:EMAIL OR http://CONTACT_PAGE" />
+          <!-- YYYY-MM-DD -->
+    <html:link rel="help"
+          href="https://svgwg.org/svg2-draft/text.html#InlineSize"/>
+    <metadata class="flags">TOKENS</metadata>
+    <desc class="assert">TEST ASSERTION</desc>
+  </g>
+
+  <style id="test-font" type="text/css">
+    /* Standard Font (if needed). */
+    @font-face {
+      font-family: FreeSans;
+      src: url("fonts/FreeSans.woff") format("woff"),
+           local("FreeSans");
+    }
+    text { font-family: FreeSans, sans-serif }
+  </style>
+
+  <style id="test-style" type="text/css">
+    /* Style that is being tested (if needed). */
+    text { font-family: FreeSans, sans-serif }
+  </style>
+
+  <defs>
+    <path id="TestPath" d="m 80,100 0,160 m 320,-160 0,160"/>
+  </defs>
+
+  <text id="title" x="240" y="50" style="fill:black; font-size:24px; text-anchor:middle;">Text 'inline-size' — 005</text>
+  <a href="https://svgwg.org/svg2-draft/text.html#InlineSize">
+    <text id="source" x="240" y="70" style="fill:black; font-size:12px; text-anchor:middle;">https://svgwg.org/svg2-draft/text.html#InlineSize</text>
+  </a>
+
+  <g id="test-body-reference" style="font-size:16px;fill:#ffeeee">
+    <g transform="translate(0,0)">
+      <use xlink:href="#TestPath" style="fill:none;stroke:lightblue"/>
+      <text>
+        <tspan x="80" y="114.8">Lorem ipsum dolor sit amet, consectetur</tspan>
+        <tspan x="80" y="149.6">adipiscing <tspan style="font-size:32px">elit</tspan>, sed do eiusmod tempor</tspan>
+        <tspan x="80" y="174.8">incididunt ut labore et dolore magna aliqua. Ut</tspan>
+        <tspan x="80" y="209.6">enim ad minim veniam, <tspan style="font-size:32px">quis</tspan> nostrud</tspan>
+        <tspan x="80" y="234.8">exercitation ullamco laboris <tspan style="font-size:8px">nisi</tspan> ut aliquip ex ea</tspan>
+        <tspan x="80" y="254.8">commodo consequat.</tspan>
+      </text>
+    </g>
+  </g>
+
+  <g id="test-body-content" style="font-size:16px;line-height:1.25;fill:green">
+    <g transform="translate(0,0)">
+      <text x="80" y="114.8" style="inline-size:320px" xml:space="preserve">Lorem ipsum dolor sit amet, consectetur adipiscing <tspan style="font-size:32px">elit</tspan>, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, <tspan style="font-size:2em">quis</tspan> nostrud exercitation ullamco laboris <tspan style="font-size:8px">nisi</tspan> ut aliquip ex ea commodo consequat.</text>
+    </g>
+  </g>
+
+</svg>
diff --git a/testing/web-platform/tests/svg/text/visualtests/text-inline-size-006-visual.svg b/testing/web-platform/tests/svg/text/visualtests/text-inline-size-006-visual.svg
new file mode 100644
index 000000000000..427ff09501b7
--- /dev/null
+++ b/testing/web-platform/tests/svg/text/visualtests/text-inline-size-006-visual.svg
@@ -0,0 +1,66 @@
+<?xml version="1.0" encoding="utf-8"?>
+<svg id="svg-root"
+  width="100%" height="100%" viewBox="0 0 480 360"
+  xmlns="http://www.w3.org/2000/svg"
+  xmlns:xlink="http://www.w3.org/1999/xlink"
+  xmlns:html="http://www.w3.org/1999/xhtml">
+  <g id="testmeta">
+    <title>Text: Inline Size — 006</title>
+    <html:link rel="author"
+          title="Tavmjong Bah"
+          href="mailto:tavmjong@free.fr"/>
+    <html:link rel="reviewer"
+          title="NAME_OF_REVIEWER"
+          href="mailto:EMAIL OR http://CONTACT_PAGE" />
+          <!-- YYYY-MM-DD -->
+    <html:link rel="help"
+          href="https://svgwg.org/svg2-draft/text.html#InlineSize"/>
+    <metadata class="flags">TOKENS</metadata>
+    <desc class="assert">TEST ASSERTION</desc>
+  </g>
+
+  <style id="test-font" type="text/css">
+    /* Standard Font (if needed). */
+    @font-face {
+      font-family: FreeSans;
+      src: url("fonts/FreeSans.woff") format("woff"),
+           local("FreeSans");
+    }
+    text { font-family: FreeSans, sans-serif }
+  </style>
+
+  <style id="test-style" type="text/css">
+    /* Style that is being tested (if needed). */
+    text { font-family: FreeSans, sans-serif }
+  </style>
+
+  <defs>
+    <path id="TestPath" d="m 80,100 0,160 m 320,-160 0,160"/>
+  </defs>
+
+  <text id="title" x="240" y="50" style="fill:black; font-size:24px; text-anchor:middle;">Text 'inline-size' — 006</text>
+  <a href="https://svgwg.org/svg2-draft/text.html#InlineSize">
+    <text id="source" x="240" y="70" style="fill:black; font-size:12px; text-anchor:middle;">https://svgwg.org/svg2-draft/text.html#InlineSize</text>
+  </a>
+
+  <g id="test-body-reference" style="font-size:16px;fill:red">
+    <g transform="translate(0,0)">
+      <use xlink:href="#TestPath" style="fill:none;stroke:lightblue"/>
+      <text>
+        <tspan x="80" y="114.8">Lorem ipsum dolor sit amet, consectetur</tspan>
+        <tspan x="80" y="134.8">adipiscing <tspan style="font-size:32px">elit</tspan>, sed do eiusmod tempor</tspan>
+        <tspan x="80" y="154.8">incididunt ut labore et dolore magna aliqua. Ut</tspan>
+        <tspan x="80" y="174.8">enim ad minim veniam, <tspan style="font-size:32px">quis</tspan> nostrud</tspan>
+        <tspan x="80" y="194.8">exercitation ullamco laboris <tspan style="font-size:8px">nisi</tspan> ut aliquip ex ea</tspan>
+        <tspan x="80" y="214.8">commodo consequat.</tspan>
+      </text>
+    </g>
+  </g>
+
+  <g id="test-body-content" style="font-size:16px;line-height:1.25;fill:green">
+    <g transform="translate(0,0)">
+      <text x="80" y="114.8" style="inline-size:320px">Lorem ipsum dolor sit amet, consectetur adipiscing <tspan style="font-size:32px;line-height:0">elit</tspan>, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, <tspan style="font-size:2em;line-height:0">quis</tspan> nostrud exercitation ullamco laboris <tspan style="font-size:8px">nisi</tspan> ut aliquip ex ea commodo consequat.</text>
+    </g>
+  </g>
+
+</svg>
diff --git a/testing/web-platform/tests/svg/text/visualtests/text-inline-size-007-visual.svg b/testing/web-platform/tests/svg/text/visualtests/text-inline-size-007-visual.svg
new file mode 100644
index 000000000000..8bb078f95b07
--- /dev/null
+++ b/testing/web-platform/tests/svg/text/visualtests/text-inline-size-007-visual.svg
@@ -0,0 +1,66 @@
+<?xml version="1.0" encoding="utf-8"?>
+<svg id="svg-root"
+  width="100%" height="100%" viewBox="0 0 480 360"
+  xmlns="http://www.w3.org/2000/svg"
+  xmlns:xlink="http://www.w3.org/1999/xlink"
+  xmlns:html="http://www.w3.org/1999/xhtml">
+  <g id="testmeta">
+    <title>Text: Inline Size — 006</title>
+    <html:link rel="author"
+          title="Tavmjong Bah"
+          href="mailto:tavmjong@free.fr"/>
+    <html:link rel="reviewer"
+          title="NAME_OF_REVIEWER"
+          href="mailto:EMAIL OR http://CONTACT_PAGE" />
+          <!-- YYYY-MM-DD -->
+    <html:link rel="help"
+          href="https://svgwg.org/svg2-draft/text.html#InlineSize"/>
+    <metadata class="flags">TOKENS</metadata>
+    <desc class="assert">TEST ASSERTION</desc>
+  </g>
+
+  <style id="test-font" type="text/css">
+    /* Standard Font (if needed). */
+    @font-face {
+      font-family: FreeSans;
+      src: url("fonts/FreeSans.woff") format("woff"),
+           local("FreeSans");
+    }
+    text { font-family: FreeSans, sans-serif }
+  </style>
+
+  <style id="test-style" type="text/css">
+    /* Style that is being tested (if needed). */
+    text { font-family: FreeSans, sans-serif }
+  </style>
+
+  <defs>
+    <path id="TestPath" d="m 80,100 0,160 m 320,-160 0,160"/>
+  </defs>
+
+  <text id="title" x="240" y="50" style="fill:black; font-size:24px; text-anchor:middle;">Text 'inline-size' — 007</text>
+  <a href="https://svgwg.org/svg2-draft/text.html#InlineSize">
+    <text id="source" x="240" y="70" style="fill:black; font-size:12px; text-anchor:middle;">https://svgwg.org/svg2-draft/text.html#InlineSize</text>
+  </a>
+
+  <g id="test-body-reference" style="font-size:16px;fill:red">
+    <g transform="translate(0,0)">
+      <use xlink:href="#TestPath" style="fill:none;stroke:lightblue"/>
+      <text>
+        <tspan x="80" y="114.8">Lorem ipsum dolor sit amet, consectetur</tspan>
+        <tspan x="80" y="139.6">adipiscing <tspan style="font-size:32px">elit</tspan>, sed do eiusmod tempor</tspan>
+        <tspan x="80" y="159.6">incididunt ut labore et dolore magna aliqua. Ut</tspan>
+        <tspan x="80" y="184.4">enim ad minim veniam, <tspan style="font-size:32px">quis</tspan> nostrud</tspan>
+        <tspan x="80" y="204.4">exercitation ullamco laboris <tspan style="font-size:8px">nisi</tspan> ut aliquip ex ea</tspan>
+        <tspan x="80" y="226.8">commodo consequat.</tspan>
+      </text>
+    </g>
+  </g>
+
+  <g id="test-body-content" style="font-size:16px;fill:green">
+    <g transform="translate(0,0)">
+      <text x="80" y="114.8" style="inline-size:320px;line-height:20px">Lorem ipsum dolor sit amet, consectetur adipiscing <tspan style="font-size:32px">elit</tspan>, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, <tspan style="font-size:2em">quis</tspan> nostrud exercitation ullamco laboris <tspan style="font-size:8px">nisi</tspan> ut aliquip ex ea commodo consequat.</text>
+    </g>
+  </g>
+
+</svg>
diff --git a/testing/web-platform/tests/svg/text/visualtests/text-inline-size-101-visual.svg b/testing/web-platform/tests/svg/text/visualtests/text-inline-size-101-visual.svg
new file mode 100644
index 000000000000..e1c5c416931a
--- /dev/null
+++ b/testing/web-platform/tests/svg/text/visualtests/text-inline-size-101-visual.svg
@@ -0,0 +1,82 @@
+<?xml version="1.0" encoding="utf-8"?>
+<svg id="svg-root"
+  width="100%" height="100%" viewBox="0 0 480 360"
+  xmlns="http://www.w3.org/2000/svg"
+  xmlns:xlink="http://www.w3.org/1999/xlink"
+  xmlns:html="http://www.w3.org/1999/xhtml">
+  <g id="testmeta">
+    <title>Text: Inline Size — 101</title>
+    <html:link rel="author"
+          title="Tavmjong Bah"
+          href="mailto:tavmjong@free.fr"/>
+    <html:link rel="reviewer"
+          title="NAME_OF_REVIEWER"
+          href="mailto:EMAIL OR http://CONTACT_PAGE" />
+          <!-- YYYY-MM-DD -->
+    <html:link rel="help"
+          href="https://svgwg.org/svg2-draft/text.html#InlineSize"/>
+    <metadata class="flags">TOKENS</metadata>
+    <desc class="assert">TEST ASSERTION</desc>
+  </g>
+
+  <style id="test-font" type="text/css">
+    /* Standard Font (if needed). */
+    @font-face {
+      font-family: FreeSans;
+      src: url("fonts/FreeSans.woff") format("woff"),
+           local("FreeSans");
+    }
+    text { font-family: FreeSans, sans-serif }
+  </style>
+
+  <style id="test-style" type="text/css">
+    /* Style that is being tested (if needed). */
+    text { font-family: FreeSans, sans-serif }
+  </style>
+
+  <defs>
+    <path id="TestPath" d="m 80,100 0,40 m 320,-40 0,40"/>
+  </defs>
+
+  <text id="title" x="240" y="50" style="fill:black; font-size:24px; text-anchor:middle;">Text 'inline-size' — 101</text>
+  <a href="https://svgwg.org/svg2-draft/text.html#InlineSize">
+    <text id="source" x="240" y="70" style="fill:black; font-size:12px; text-anchor:middle;">https://svgwg.org/svg2-draft/text.html#InlineSize</text>
+  </a>
+
+  <g id="test-body-reference" style="font-size:16px;fill:red">
+    <g transform="translate(0,0)">
+      <use xlink:href="#TestPath" style="fill:none;stroke:lightblue"/>
+      <text>
+        <tspan x="80" y="114.8">Lorem ipsum dolor sit amet, consectetur</tspan>
+        <tspan x="80" y="134.8">adipisicing elit,</tspan>
+      </text>
+    </g>
+    <g transform="translate(0,60)">
+      <use xlink:href="#TestPath" style="fill:none;stroke:lightblue"/>
+      <text style="text-anchor:middle">
+        <tspan x="240" y="114.8">Lorem ipsum dolor sit amet, consectetur</tspan>
+        <tspan x="240" y="134.8">adipisicing elit,</tspan>
+      </text>
+    </g>
+    <g transform="translate(0,120)">
+      <use xlink:href="#TestPath" style="fill:none;stroke:lightblue"/>
+      <text style="text-anchor:end">
+        <tspan x="400" y="114.8">Lorem ipsum dolor sit amet, consectetur</tspan>
+        <tspan x="400" y="134.8">adipisicing elit,</tspan>
+      </text>
+    </g>
+  </g>
+
+  <g id="test-body-content" style="font-size:16px;line-spacing:1.25;fill:green">
+    <g transform="translate(0,0)">
+      <text x="80" y="114.8" style="inline-size:66.66667%">Lorem ipsum dolor sit amet, consectetur adipisicing elit,</text>
+    </g>
+    <g transform="translate(0,60)">
+      <text x="240" y="114.8" style="inline-size:66.66667%;text-anchor:middle">Lorem ipsum dolor sit amet, consectetur adipisicing elit,</text>
+    </g>
+    <g transform="translate(0,120)">
+      <text x="400" y="114.8" style="inline-size:66.66667%;text-anchor:end">Lorem ipsum dolor sit amet, consectetur adipisicing elit,</text>
+    </g>
+  </g>
+
+</svg>
diff --git a/testing/web-platform/tests/svg/text/visualtests/text-inline-size-201-visual.svg b/testing/web-platform/tests/svg/text/visualtests/text-inline-size-201-visual.svg
new file mode 100644
index 000000000000..f2649eaad28f
--- /dev/null
+++ b/testing/web-platform/tests/svg/text/visualtests/text-inline-size-201-visual.svg
@@ -0,0 +1,91 @@
+<?xml version="1.0" encoding="utf-8"?>
+<svg id="svg-root"
+  width="100%" height="100%" viewBox="0 0 480 360"
+  xmlns="http://www.w3.org/2000/svg"
+  xmlns:xlink="http://www.w3.org/1999/xlink"
+  xmlns:html="http://www.w3.org/1999/xhtml">
+  <g id="testmeta">
+    <title>Text in Shape — 201</title>
+    <html:link rel="author"
+          title="Tavmjong Bah"
+          href="mailto:tavmjong@free.fr"/>
+    <html:link rel="reviewer"
+          title="NAME_OF_REVIEWER"
+          href="mailto:EMAIL OR http://CONTACT_PAGE" />
+          <!-- YYYY-MM-DD -->
+    <html:link rel="help"
+          href="https://svgwg.org/svg2-draft/text.html#InlineSize"/>
+    <metadata class="flags">TOKENS</metadata>
+    <desc class="assert">TEST ASSERTION</desc>
+  </g>
+
+  <style id="test-font" type="text/css">
+    /* Standard Font (if needed). */
+    @font-face {
+      font-family: FreeSans;
+      src: url("fonts/FreeSans.woff") format("woff"),
+           local("FreeSans");
+    }
+    text { font-family: FreeSans, sans-serif }
+  </style>
+
+  <style id="test-style" type="text/css">
+    /* Style that is being tested (if needed). */
+    text { font-family: FreeSans, sans-serif }
+  </style>
+
+  <defs>
+    <path id="TestPath" d="m 110,100 40,0 m -40,200 40,0"/>
+  </defs>
+
+  <text id="title" x="240" y="50" style="fill:black; font-size:24px; text-anchor:middle;">Text 'inline-size' — 201</text>
+  <a href="https://svgwg.org/svg2-draft/text.html#InlineSize">
+    <text id="source" x="240" y="70" style="fill:black; font-size:12px; text-anchor:middle;">https://svgwg.org/svg2-draft/text.html#InlineSize</text>
+  </a>
+
+  <g id="test-body-reference" style="font-size:16px;fill:red">
+    <g transform="translate(0,0)">
+      <use xlink:href="#TestPath" style="fill:none;stroke:lightblue"/>
+      <text style="writing-mode:tb-rl">
+        <tspan x="140" y="100">漢字</tspan>
+        <tspan x="140" y="132">Lorem ipsum</tspan>
+        <tspan x="140" y="227.7">漢字</tspan>
+      </text>
+    </g>
+    <g transform="translate(80,0)">
+      <use xlink:href="#TestPath" style="fill:none;stroke:lightblue"/>
+      <text transform="translate(250,-40) rotate(90)">
+        <tspan x="140" y="110">漢字Lorem ipsum!漢字</tspan>
+      </text>
+    </g>
+    <g transform="translate(160,0)">
+      <use xlink:href="#TestPath" style="fill:none;stroke:lightblue"/>
+      <text transform="translate(250,-40) rotate(90)">
+        <tspan x="140" y="110">漢字!لكن لا بد أن漢字</tspan>
+      </text>
+    </g>
+    <g transform="translate(240,0)">
+      <use xlink:href="#TestPath" style="fill:none;stroke:lightblue"/>
+      <text transform="translate(250,-40) rotate(90)" style="direction:rtl;text-anchor:end">
+        <tspan x="140" y="110">漢字!لكن لا بد أن漢字</tspan>
+      </text>
+    </g>
+  </g>
+
+  <!-- Lorem ipsum dolor sit amet, consectetur adipisicing elit, -->
+  <g id="test-body-content" style="font-size:16px;line-spacing:1.25;writing-mode:tb-rl;fill:green">
+    <g transform="translate(0,0)">
+      <text x="140" y="100" style="inline-size:200px">漢字Lorem ipsum!漢字</text>
+    </g>
+    <g transform="translate(80,0)" style="text-orientation:sideways">
+      <text x="140" y="100" style="inline-size:200px">漢字Lorem ipsum!漢字</text>
+    </g>
+    <g transform="translate(160,0)" style="text-orientation:sideways">
+      <text x="140" y="100" style="inline-size:200px">漢字!لكن لا بد أن漢字</text>
+    </g>
+    <g transform="translate(240,0)" style="direction:rtl;text-orientation:sideways">
+      <text x="140" y="100" style="inline-size:200px">漢字!لكن لا بد أن漢字</text>
+    </g>
+  </g>
+
+</svg>