Add tests for pf.write

sys/create_r2.bat

@@ -1,2 +1,3 @@
 MKDIR %MESON_INSTALL_PREFIX%\bin
 @echo @"%%~dp0\radare2" %%*> %MESON_INSTALL_PREFIX%\bin\r2.bat
+EXIT 0

test/db/cmd/cmd_pf_write

@@ -0,0 +1,103 @@
+NAME=pf xxd=123
+FILE=-
+CMDS=<<EOF
+pf foo=xxd foo bar cow
+pf.foo
+pf.foo.foo
+.pf.foo.foo=123
+pf.foo.foo
+pf.foo
+EOF
+EXPECT=<<EOF
+ foo : 0x00000000 = 0x00000000
+ bar : 0x00000004 = 0x00000000
+ cow : 0x00000008 = 0
+ foo : 0x00000000 = 0x00000000
+ foo : 0x00000000 = 0x0000007b
+ foo : 0x00000000 = 0x0000007b
+ bar : 0x00000004 = 0x00000000
+ cow : 0x00000008 = 0
+EOF
+RUN
+
+NAME=pf xxd.cow=123
+FILE=-
+CMDS=<<EOF
+pf foo=[2]xxd foo bar cow
+pf.foo.cow
+.pf.foo.cow=123
+pf.foo.cow
+EOF
+EXPECT=<<EOF
+ cow : 0x0000000c = 0
+ cow : 0x0000000c = 123
+EOF
+RUN
+
+NAME=pf array with one write
+FILE=-
+CMDS=<<EOF
+pf foo=[3]x foo
+.pf.foo.foo=1
+pf.foo
+EOF
+EXPECT=<<EOF
+ foo : 0x00000000 = [ 0x00000001, 0x00000000, 0x00000000 ]
+EOF
+RUN
+
+NAME=pf array not in meta
+FILE=-
+BROKEN=1
+CMDS=<<EOF
+pf foo=[3]x foo
+.pf.foo.foo=1
+.pf*.foo
+e asm.lines=0
+pd 1
+EOF
+EXPECT=<<EOF
+0x00000000 foo : 0x00000000 = [ 0x00000001, 0x00000000, 0x00000000 ]
+EOF
+RUN
+
+NAME=pf xxd print happy
+FILE=-
+CMDS=<<EOF
+pf foo=xxd foo bar cow
+w hello happy world
+e asm.lines=0
+.pf*.foo
+pd 3
+EOF
+EXPECT=<<EOF
+;-- foo:
+0x00000000      .dword 0x6c6c6568
+;-- bar:
+0x00000004      .dword 0x6168206f
+;-- cow:
+0x00000008      .dword 0x20797070
+EOF
+RUN
+
+NAME=pf xxd print
+BROKEN=1
+FILE=-
+CMDS=<<EOF
+pf foo=[2]xxd foo bar cow
+w hello happy world
+e asm.lines=0
+e asm.flags.inbytes=1
+.pf*.foo
+pd 3
+EOF
+EXPECT=<<EOF
+            ;-- foo:
+            0x00000000      .qword 0x6168206f6c6c6568
+            ;-- bar:
+            0x00000008      .dword 0x20797070
+            ;-- cow:
+            0x0000000c      .dword 0x6c726f77
+EOF
+RUN
+