Bug 1881754 - refactor some SVG web platform tests r=emilio

- SVGAnimateColorElement is deprecated and should be removed where possible
- SVGDiscardElement needs to be included correctly
- svg/rendering is the correct directory per the SVG 2 specification and not svg/render
- Move a styling test to the styling directory

Differential Revision: https://phabricator.services.mozilla.com/D202593

testing/web-platform/meta/svg/idlharness.window.js.ini

@@ -1,6 +1,5 @@
 [idlharness.window.html]
   prefs: [svg.SVGAElement.text.enabled:true]
-
   [SVGElement interface: attribute correspondingElement]
     expected: FAIL
 
@@ -441,3 +440,60 @@
 
   [SVGDiscardElement interface: existence and properties of interface prototype object's @@unscopables property]
     expected: FAIL
+
+  [SVGDiscardElement must be primary interface of objects.discard]
+    expected: FAIL
+
+  [Stringification of objects.discard]
+    expected: FAIL
+
+  [SVGAnimationElement interface: objects.discard must inherit property "targetElement" with the proper type]
+    expected: FAIL
+
+  [SVGAnimationElement interface: objects.discard must inherit property "onbegin" with the proper type]
+    expected: FAIL
+
+  [SVGAnimationElement interface: objects.discard must inherit property "onend" with the proper type]
+    expected: FAIL
+
+  [SVGAnimationElement interface: objects.discard must inherit property "onrepeat" with the proper type]
+    expected: FAIL
+
+  [SVGAnimationElement interface: objects.discard must inherit property "getStartTime()" with the proper type]
+    expected: FAIL
+
+  [SVGAnimationElement interface: objects.discard must inherit property "getCurrentTime()" with the proper type]
+    expected: FAIL
+
+  [SVGAnimationElement interface: objects.discard must inherit property "getSimpleDuration()" with the proper type]
+    expected: FAIL
+
+  [SVGAnimationElement interface: objects.discard must inherit property "beginElement()" with the proper type]
+    expected: FAIL
+
+  [SVGAnimationElement interface: objects.discard must inherit property "beginElementAt(float)" with the proper type]
+    expected: FAIL
+
+  [SVGAnimationElement interface: calling beginElementAt(float) on objects.discard with too few arguments must throw TypeError]
+    expected: FAIL
+
+  [SVGAnimationElement interface: objects.discard must inherit property "endElement()" with the proper type]
+    expected: FAIL
+
+  [SVGAnimationElement interface: objects.discard must inherit property "endElementAt(float)" with the proper type]
+    expected: FAIL
+
+  [SVGAnimationElement interface: calling endElementAt(float) on objects.discard with too few arguments must throw TypeError]
+    expected: FAIL
+
+  [SVGAnimationElement interface: objects.discard must inherit property "requiredExtensions" with the proper type]
+    expected: FAIL
+
+  [SVGAnimationElement interface: objects.discard must inherit property "systemLanguage" with the proper type]
+    expected: FAIL
+
+  [SVGElement interface: objects.discard must inherit property "correspondingElement" with the proper type]
+    expected: FAIL
+
+  [SVGElement interface: objects.discard must inherit property "correspondingUseElement" with the proper type]
+    expected: FAIL

testing/web-platform/mozilla/tests/fetch/fetchpriority/support/script-tests/module-script-dynamic-insertion.h2.html

@@ -29,9 +29,8 @@
       } else {
         const namespaceURI = "http://www.w3.org/2000/svg";
         scriptElement = document.createElementNS(namespaceURI, "script");
-        // Use setAttribute as SVGURIReference's href property is read-only
-        // and SVGScriptElement has no fetchPriority property.
-        scriptElement.setAttribute("href", data.src);
+        scriptElement.href.baseVal = data.src;
+        // Use setAttribute as SVGScriptElement has no fetchPriority property.
         if ("fetchPriority" in data) {
           scriptElement.setAttribute("fetchPriority", data.fetchPriority);
         }

testing/web-platform/mozilla/tests/fetch/fetchpriority/support/script-tests/script-dynamic-insertion.h2.html

@@ -30,8 +30,8 @@
       } else {
         const namespaceURI = "http://www.w3.org/2000/svg";
         scriptElement = document.createElementNS(namespaceURI, "script");
-        // Use setAttribute as SVGURIReference's href property is read-only
-        // and SVGScriptElement has no fetchPriority property.
+        scriptElement.href.baseVal = data.src;
+        // Use setAttribute as SVGScriptElement has no fetchPriority property.
         scriptElement.setAttribute("href", data.src);
         if ("fetchPriority" in data) {
           scriptElement.setAttribute("fetchPriority", data.fetchPriority);

testing/web-platform/tests/svg/idlharness.window.js

@@ -42,9 +42,9 @@ const elements = [
   'script',
   'animate',
   'set',
+  'discard',
   'animateMotion',
   'mpath',
-  'animateColor',
   'animateTransform',
   'metadata',
   'foreignObject',
@@ -167,10 +167,10 @@ idl_test(
       SVGViewElement: ['objects.view'],
       SVGScriptElement: ['objects.script'],
       SVGAnimateElement: ['objects.animate'],
+      SVGDiscardElement: ['objects.discard'],
       SVGSetElement: ['objects.set'],
       SVGAnimateMotionElement: ['objects.animateMotion'],
       SVGMPathElement: ['objects.mpath'],
-      SVGAnimateColorElement: ['objects.animateColor'],
       SVGAnimateTransformElement: ['objects.animateTransform'],
       SVGMetadataElement: ['objects.metadata'],
       SVGForeignObjectElement: ['objects.foreignObject'],