Map MathML elements to specific roles

This CL introduces the minimal number of MathML roles so that one can implement role and attribute mapping for ATK and AX API [1]. Exact roles for some tags are still being discussed on the spec side and might change in the future [2] [3] [4] [5] [6]. On Windows and Android platforms, math roles is a bit undefined and so some dummy role mapping is used right now. Node tests are added to cover all elements of MathML Core. These new tests also verify that the MathML element tags are exposed as an AtkObject attribute. [1] https://w3c.github.io/mathml-aam/ [2] w3c/mathml-aam#9 [3] w3c/mathml-aam#11 [4] w3c/mathml-aam#12 [5] w3c/mathml-aam#13 [6] w3c/mathml-aam#14 AX-Relnotes: MathML elements are exposed in the accessible tree with specific roles. Bug: 6606, 1038895, 1051115, 1038897, 1038898, 1038899, 1038900, 1038901, 1038911, 1038913, 1052420 Change-Id: I7e857a0cfc05616a30bf4842e334c1dfde082d49 Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/3207929 Commit-Queue: Frédéric Wang <[email protected]> Reviewed-by: Nektarios Paisios <[email protected]> Reviewed-by: Tom Sepez <[email protected]> Cr-Commit-Position: refs/heads/main@{#933442}
blueboxd · Oct 20, 2021 · d6d648b · d6d648b
1 parent 5e0bc9d
commit d6d648b
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Showing 141 changed files with 1,052 additions and 70 deletions.
diff --git a/content/browser/accessibility/browser_accessibility_android.cc b/content/browser/accessibility/browser_accessibility_android.cc
@@ -1464,6 +1464,29 @@ std::u16string BrowserAccessibilityAndroid::GetRoleDescription() const {
  case ax::mojom::Role::kMathMLMath:
  message_id = IDS_AX_ROLE_MATH;
  break;
+ case ax::mojom::Role::kMathMLFraction:
+ case ax::mojom::Role::kMathMLIdentifier:
+ case ax::mojom::Role::kMathMLMultiscripts:
+ case ax::mojom::Role::kMathMLNoneScript:
+ case ax::mojom::Role::kMathMLNumber:
+ case ax::mojom::Role::kMathMLOperator:
+ case ax::mojom::Role::kMathMLOver:
+ case ax::mojom::Role::kMathMLPrescriptDelimiter:
+ case ax::mojom::Role::kMathMLRoot:
+ case ax::mojom::Role::kMathMLRow:
+ case ax::mojom::Role::kMathMLSquareRoot:
+ case ax::mojom::Role::kMathMLStringLiteral:
+ case ax::mojom::Role::kMathMLSub:
+ case ax::mojom::Role::kMathMLSubSup:
+ case ax::mojom::Role::kMathMLSup:
+ case ax::mojom::Role::kMathMLTable:
+ case ax::mojom::Role::kMathMLTableCell:
+ case ax::mojom::Role::kMathMLTableRow:
+ case ax::mojom::Role::kMathMLText:
+ case ax::mojom::Role::kMathMLUnder:
+ case ax::mojom::Role::kMathMLUnderOver:
+ // No role description.
+ break;
  case ax::mojom::Role::kMenu:
  message_id = IDS_AX_ROLE_MENU;
  break;

diff --git a/content/browser/accessibility/dump_accessibility_node_browsertest.cc b/content/browser/accessibility/dump_accessibility_node_browsertest.cc
@@ -5,6 +5,7 @@
 #include "base/files/file_util.h"
 #include "content/browser/accessibility/dump_accessibility_browsertest_base.h"
 #include "content/browser/web_contents/web_contents_impl.h"
+#include "content/public/common/content_switches.h"
 #include "content/public/test/browser_test.h"
 #include "content/public/test/content_browser_test_utils.h"
 #include "content/shell/browser/shell.h"
@@ -24,6 +25,9 @@ class DumpAccessibilityNodeTest : public DumpAccessibilityTestBase {
  // which include a select element descendant.
  base::CommandLine::ForCurrentProcess()->AppendSwitchASCII(
  switches::kDisableAXMenuList, "false");
+ // Enable MathMLCore for some MathML tests.
+ base::CommandLine::ForCurrentProcess()->AppendSwitchASCII(
+ switches::kEnableBlinkFeatures, "MathMLCore");
  }
 
  std::vector<ui::AXPropertyFilter> DefaultFilters() const override {
@@ -166,9 +170,100 @@ IN_PROC_BROWSER_TEST_P(DumpAccessibilityNodeTest,
 //
 // MathML tests.
 //
+
+IN_PROC_BROWSER_TEST_P(DumpAccessibilityNodeTest, MathMLAction) {
+ RunMathMLTest(FILE_PATH_LITERAL("maction.html"));
+}
+IN_PROC_BROWSER_TEST_P(DumpAccessibilityNodeTest, MathMLAnnotation) {
+ RunMathMLTest(FILE_PATH_LITERAL("annotation.html"));
+}
+IN_PROC_BROWSER_TEST_P(DumpAccessibilityNodeTest, MathMLAnnotationXML) {
+ RunMathMLTest(FILE_PATH_LITERAL("annotation-xml.html"));
+}
+IN_PROC_BROWSER_TEST_P(DumpAccessibilityNodeTest, MathMLError) {
+ RunMathMLTest(FILE_PATH_LITERAL("merror.html"));
+}
+IN_PROC_BROWSER_TEST_P(DumpAccessibilityNodeTest, MathMLFraction) {
+ RunMathMLTest(FILE_PATH_LITERAL("mfrac.html"));
+}
+IN_PROC_BROWSER_TEST_P(DumpAccessibilityNodeTest, MathMLIdentifier) {
+ RunMathMLTest(FILE_PATH_LITERAL("mi.html"));
+}
+IN_PROC_BROWSER_TEST_P(DumpAccessibilityNodeTest, MathMLMath) {
+ RunMathMLTest(FILE_PATH_LITERAL("math.html"));
+}
+IN_PROC_BROWSER_TEST_P(DumpAccessibilityNodeTest, MathMLMultiscripts) {
+ RunMathMLTest(FILE_PATH_LITERAL("mmultiscripts.html"));
+}
+IN_PROC_BROWSER_TEST_P(DumpAccessibilityNodeTest, MathMLNone) {
+ RunMathMLTest(FILE_PATH_LITERAL("none.html"));
+}
+IN_PROC_BROWSER_TEST_P(DumpAccessibilityNodeTest, MathMLNumber) {
+ RunMathMLTest(FILE_PATH_LITERAL("mn.html"));
+}
+IN_PROC_BROWSER_TEST_P(DumpAccessibilityNodeTest, MathMLOperator) {
+ RunMathMLTest(FILE_PATH_LITERAL("mo.html"));
+}
+IN_PROC_BROWSER_TEST_P(DumpAccessibilityNodeTest, MathMLOver) {
+ RunMathMLTest(FILE_PATH_LITERAL("mover.html"));
+}
+IN_PROC_BROWSER_TEST_P(DumpAccessibilityNodeTest, MathMLPadded) {
+ RunMathMLTest(FILE_PATH_LITERAL("mpadded.html"));
+}
+IN_PROC_BROWSER_TEST_P(DumpAccessibilityNodeTest, MathMLPhantom) {
+ RunMathMLTest(FILE_PATH_LITERAL("mphantom.html"));
+}
+IN_PROC_BROWSER_TEST_P(DumpAccessibilityNodeTest, MathMLPrescripts) {
+ RunMathMLTest(FILE_PATH_LITERAL("mprescripts.html"));
+}
+IN_PROC_BROWSER_TEST_P(DumpAccessibilityNodeTest, MathMLRoot) {
+ RunMathMLTest(FILE_PATH_LITERAL("mroot.html"));
+}
+IN_PROC_BROWSER_TEST_P(DumpAccessibilityNodeTest, MathMLRow) {
+ RunMathMLTest(FILE_PATH_LITERAL("mrow.html"));
+}
+IN_PROC_BROWSER_TEST_P(DumpAccessibilityNodeTest, MathMLSemantics) {
+ RunMathMLTest(FILE_PATH_LITERAL("semantics.html"));
+}
 IN_PROC_BROWSER_TEST_P(DumpAccessibilityNodeTest, MathMLSpace) {
  RunMathMLTest(FILE_PATH_LITERAL("mspace.html"));
 }
+IN_PROC_BROWSER_TEST_P(DumpAccessibilityNodeTest, MathMLSquareRoot) {
+ RunMathMLTest(FILE_PATH_LITERAL("msqrt.html"));
+}
+IN_PROC_BROWSER_TEST_P(DumpAccessibilityNodeTest, MathMLStringLiteral) {
+ RunMathMLTest(FILE_PATH_LITERAL("ms.html"));
+}
+IN_PROC_BROWSER_TEST_P(DumpAccessibilityNodeTest, MathMLStyle) {
+ RunMathMLTest(FILE_PATH_LITERAL("mstyle.html"));
+}
+IN_PROC_BROWSER_TEST_P(DumpAccessibilityNodeTest, MathMLSub) {
+ RunMathMLTest(FILE_PATH_LITERAL("msub.html"));
+}
+IN_PROC_BROWSER_TEST_P(DumpAccessibilityNodeTest, MathMLSubSup) {
+ RunMathMLTest(FILE_PATH_LITERAL("msubsup.html"));
+}
+IN_PROC_BROWSER_TEST_P(DumpAccessibilityNodeTest, MathMLSup) {
+ RunMathMLTest(FILE_PATH_LITERAL("msup.html"));
+}
+IN_PROC_BROWSER_TEST_P(DumpAccessibilityNodeTest, MathMLTable) {
+ RunMathMLTest(FILE_PATH_LITERAL("mtable.html"));
+}
+IN_PROC_BROWSER_TEST_P(DumpAccessibilityNodeTest, MathMLTableCell) {
+ RunMathMLTest(FILE_PATH_LITERAL("mtd.html"));
+}
+IN_PROC_BROWSER_TEST_P(DumpAccessibilityNodeTest, MathMLTableRow) {
+ RunMathMLTest(FILE_PATH_LITERAL("mtr.html"));
+}
+IN_PROC_BROWSER_TEST_P(DumpAccessibilityNodeTest, MathMLText) {
+ RunMathMLTest(FILE_PATH_LITERAL("mtext.html"));
+}
+IN_PROC_BROWSER_TEST_P(DumpAccessibilityNodeTest, MathMLUnder) {
+ RunMathMLTest(FILE_PATH_LITERAL("munder.html"));
+}
+IN_PROC_BROWSER_TEST_P(DumpAccessibilityNodeTest, MathMLUnderOver) {
+ RunMathMLTest(FILE_PATH_LITERAL("munderover.html"));
+}
 
 //
 // AccName tests.

diff --git a/content/test/data/accessibility/html/math-expected-android.txt b/content/test/data/accessibility/html/math-expected-android.txt
@@ -1,8 +1,11 @@
 android.webkit.WebView focusable focused scrollable
 ++android.view.View
 ++++android.view.View role_description='math'
-++++++android.widget.TextView name='%F0%9D%90%B4'
-++++++android.widget.TextView name='2'
-++++++android.widget.TextView name='+'
-++++++android.widget.TextView name='%F0%9D%90%B5'
-++++++android.widget.TextView name='2'
+++++++android.view.View
+++++++++android.view.View
+++++++++++android.view.View name='%F0%9D%90%B4'
+++++++++++android.view.View name='2'
+++++++++android.view.View name='+'
+++++++++android.view.View
+++++++++++android.view.View name='%F0%9D%90%B5'
+++++++++++android.view.View name='2'
diff --git a/content/test/data/accessibility/html/math-expected-auralinux.txt b/content/test/data/accessibility/html/math-expected-auralinux.txt
@@ -2,12 +2,15 @@
 ++[section]
 ++++[math]
 ++++++[section]
-++++++++[static] name='%F0%9D%90%B4'
-++++++[section]
-++++++++[static] name='2'
-++++++[section]
-++++++++[static] name='+'
-++++++[section]
-++++++++[static] name='%F0%9D%90%B5'
-++++++[section]
-++++++++[static] name='2'
+++++++++[section]
+++++++++++[static]
+++++++++++++[static] name='%F0%9D%90%B4'
+++++++++++[static]
+++++++++++++[static] name='2'
+++++++++[static]
+++++++++++[static] name='+'
+++++++++[section]
+++++++++++[static]
+++++++++++++[static] name='%F0%9D%90%B5'
+++++++++++[static]
+++++++++++++[static] name='2'
diff --git a/content/test/data/accessibility/html/math-expected-mac.txt b/content/test/data/accessibility/html/math-expected-mac.txt
@@ -1,13 +1,16 @@
 AXWebArea AXRoleDescription='HTML content'
 ++AXGroup AXRoleDescription='group'
 ++++AXGroup AXSubrole=AXDocumentMath AXRoleDescription='math'
-++++++AXGroup AXRoleDescription='group'
-++++++++AXStaticText AXRoleDescription='text' AXValue='%F0%9D%90%B4'
-++++++AXGroup AXRoleDescription='group'
-++++++++AXStaticText AXRoleDescription='text' AXValue='2'
-++++++AXGroup AXRoleDescription='group'
-++++++++AXStaticText AXRoleDescription='text' AXValue='+'
-++++++AXGroup AXRoleDescription='group'
-++++++++AXStaticText AXRoleDescription='text' AXValue='%F0%9D%90%B5'
-++++++AXGroup AXRoleDescription='group'
-++++++++AXStaticText AXRoleDescription='text' AXValue='2'
+++++++AXGroup AXSubrole=AXMathRow AXRoleDescription='group'
+++++++++AXGroup AXSubrole=AXMathSubscriptSuperscript AXRoleDescription='group'
+++++++++++AXGroup AXSubrole=AXMathIdentifier AXRoleDescription='group'
+++++++++++++AXStaticText AXRoleDescription='text' AXValue='%F0%9D%90%B4'
+++++++++++AXGroup AXSubrole=AXMathNumber AXRoleDescription='group'
+++++++++++++AXStaticText AXRoleDescription='text' AXValue='2'
+++++++++AXGroup AXSubrole=AXMathOperator AXRoleDescription='group'
+++++++++++AXStaticText AXRoleDescription='text' AXValue='+'
+++++++++AXGroup AXSubrole=AXMathSubscriptSuperscript AXRoleDescription='group'
+++++++++++AXGroup AXSubrole=AXMathIdentifier AXRoleDescription='group'
+++++++++++++AXStaticText AXRoleDescription='text' AXValue='%F0%9D%90%B5'
+++++++++++AXGroup AXSubrole=AXMathNumber AXRoleDescription='group'
+++++++++++++AXStaticText AXRoleDescription='text' AXValue='2'
diff --git a/content/test/data/accessibility/html/math-expected-uia-win.txt b/content/test/data/accessibility/html/math-expected-uia-win.txt
@@ -2,12 +2,15 @@ Document
 ++Group IsControlElement=false
 ++++Group IsControlElement=false
 ++++++Group IsControlElement=false
-++++++++Text Name='%F0%9D%90%B4'
-++++++Group IsControlElement=false
-++++++++Text Name='2'
-++++++Group IsControlElement=false
-++++++++Text Name='+'
-++++++Group IsControlElement=false
-++++++++Text Name='%F0%9D%90%B5'
-++++++Group IsControlElement=false
-++++++++Text Name='2'
+++++++++Group IsControlElement=false
+++++++++++Group IsControlElement=false
+++++++++++++Text Name='%F0%9D%90%B4'
+++++++++++Group IsControlElement=false
+++++++++++++Text Name='2'
+++++++++Group IsControlElement=false
+++++++++++Text Name='+'
+++++++++Group IsControlElement=false
+++++++++++Group IsControlElement=false
+++++++++++++Text Name='%F0%9D%90%B5'
+++++++++++Group IsControlElement=false
+++++++++++++Text Name='2'
diff --git a/content/test/data/accessibility/html/math-expected-win.txt b/content/test/data/accessibility/html/math-expected-win.txt
@@ -1,13 +1,16 @@
 ROLE_SYSTEM_DOCUMENT READONLY FOCUSABLE
 ++IA2_ROLE_SECTION
 ++++ROLE_SYSTEM_EQUATION inner_html='<newline> <mrow><newline> <msup><mi>%F0%9D%90%B4</mi><mn>2</mn></msup><newline> <mo>+</mo><newline> <msup><mi>%F0%9D%90%B5</mi><mn>2</mn></msup><newline> </mrow><newline> '
-++++++IA2_ROLE_SECTION
-++++++++ROLE_SYSTEM_STATICTEXT name='%F0%9D%90%B4'
-++++++IA2_ROLE_SECTION
-++++++++ROLE_SYSTEM_STATICTEXT name='2'
-++++++IA2_ROLE_SECTION
-++++++++ROLE_SYSTEM_STATICTEXT name='+'
-++++++IA2_ROLE_SECTION
-++++++++ROLE_SYSTEM_STATICTEXT name='%F0%9D%90%B5'
-++++++IA2_ROLE_SECTION
-++++++++ROLE_SYSTEM_STATICTEXT name='2'
+++++++ROLE_SYSTEM_GROUPING
+++++++++ROLE_SYSTEM_GROUPING
+++++++++++ROLE_SYSTEM_GROUPING
+++++++++++++ROLE_SYSTEM_STATICTEXT name='%F0%9D%90%B4'
+++++++++++ROLE_SYSTEM_GROUPING
+++++++++++++ROLE_SYSTEM_STATICTEXT name='2'
+++++++++ROLE_SYSTEM_GROUPING
+++++++++++ROLE_SYSTEM_STATICTEXT name='+'
+++++++++ROLE_SYSTEM_GROUPING
+++++++++++ROLE_SYSTEM_GROUPING
+++++++++++++ROLE_SYSTEM_STATICTEXT name='%F0%9D%90%B5'
+++++++++++ROLE_SYSTEM_GROUPING
+++++++++++++ROLE_SYSTEM_STATICTEXT name='2'
diff --git a/content/test/data/accessibility/html/math-name-from-contents-expected-blink.txt b/content/test/data/accessibility/html/math-name-from-contents-expected-blink.txt
@@ -1,28 +1,28 @@
 rootWebArea
 ++genericContainer ignored
 ++++genericContainer ignored
-++++++radioButton name='Both%C2%A01 + 4%C2%A0and%C2%A0' checkedState=false
+++++++radioButton name='Both%C2%A0%C2%A0and%C2%A0' checkedState=false
 ++++++++staticText name='Both%C2%A0'
 ++++++++++inlineTextBox name='Both%C2%A0'
-++++++++math name='1 + 4'
-++++++++++genericContainer
+++++++++math
+++++++++++mathMLNumber
 ++++++++++++staticText name='1'
 ++++++++++++++inlineTextBox name='1'
-++++++++++genericContainer
+++++++++++mathMLOperator
 ++++++++++++staticText name='+'
 ++++++++++++++inlineTextBox name='+'
-++++++++++genericContainer
+++++++++++mathMLNumber
 ++++++++++++staticText name='4'
 ++++++++++++++inlineTextBox name='4'
 ++++++++staticText name='%C2%A0and%C2%A0'
 ++++++++++inlineTextBox name='%C2%A0and%C2%A0'
 ++++++++mathMLMath
-++++++++++genericContainer
+++++++++++mathMLNumber
 ++++++++++++staticText name='2'
 ++++++++++++++inlineTextBox name='2'
-++++++++++genericContainer
+++++++++++mathMLOperator
 ++++++++++++staticText name='+'
 ++++++++++++++inlineTextBox name='+'
-++++++++++genericContainer
+++++++++++mathMLNumber
 ++++++++++++staticText name='3'
 ++++++++++++++inlineTextBox name='3'
diff --git a/content/test/data/accessibility/mathml/annotation-node-expected-auralinux.txt b/content/test/data/accessibility/mathml/annotation-node-expected-auralinux.txt
@@ -0,0 +1 @@
+[static] tag:annotation
diff --git a/content/test/data/accessibility/mathml/annotation-node-expected-blink.txt b/content/test/data/accessibility/mathml/annotation-node-expected-blink.txt
@@ -0,0 +1 @@
+mathMLText
diff --git a/content/test/data/accessibility/mathml/annotation-node-expected-mac.txt b/content/test/data/accessibility/mathml/annotation-node-expected-mac.txt
@@ -0,0 +1 @@
+AXGroup AXSubrole=AXMathText
diff --git a/content/test/data/accessibility/mathml/annotation-xml-node-expected-auralinux.txt b/content/test/data/accessibility/mathml/annotation-xml-node-expected-auralinux.txt
@@ -0,0 +1 @@
+[section] tag:annotation-xml
diff --git a/content/test/data/accessibility/mathml/annotation-xml-node-expected-blink.txt b/content/test/data/accessibility/mathml/annotation-xml-node-expected-blink.txt
@@ -0,0 +1 @@
+mathMLRow
diff --git a/content/test/data/accessibility/mathml/annotation-xml-node-expected-mac.txt b/content/test/data/accessibility/mathml/annotation-xml-node-expected-mac.txt
@@ -0,0 +1 @@
+AXGroup AXSubrole=AXMathRow
diff --git a/content/test/data/accessibility/mathml/annotation-xml.html b/content/test/data/accessibility/mathml/annotation-xml.html
@@ -0,0 +1,21 @@
+<!DOCTYPE html>
+<!--
+@MAC-ALLOW:AXSubrole
+@AURALINUX-ALLOW:tag:*
+-->
+<style>
+ semantics > annotation-xml { display: math; } /* make annotation visible */
+</style>
+<math>
+ <semantics>
+ <mfrac><mn>1</mn><mn>2</mn></mfrac>
+ <annotation encoding="application/x-tex">\frac{1}{2}</annotation>
+ <annotation-xml class="test" encoding="application/mathml-content+xml">
+ <apply>
+ <divide/>
+ <cn>1</cn>
+ <cn>2</cn>
+ </apply>
+ </annotation-xml>
+ </semantics>
+</math>
diff --git a/content/test/data/accessibility/mathml/annotation.html b/content/test/data/accessibility/mathml/annotation.html
@@ -0,0 +1,21 @@
+<!DOCTYPE html>
+<!--
+@MAC-ALLOW:AXSubrole
+@AURALINUX-ALLOW:tag:*
+-->
+<style>
+ semantics > annotation { display: math; } /* make annotation visible */
+</style>
+<math>
+ <semantics>
+ <mfrac><mn>1</mn><mn>2</mn></mfrac>
+ <annotation class="test" encoding="application/x-tex">\frac{1}{2}</annotation>
+ <annotation-xml encoding="application/mathml-content+xml">
+ <apply>
+ <divide/>
+ <cn>1</cn>
+ <cn>2</cn>
+ </apply>
+ </annotation-xml>
+ </semantics>
+</math>
diff --git a/content/test/data/accessibility/mathml/maction-node-expected-auralinux.txt b/content/test/data/accessibility/mathml/maction-node-expected-auralinux.txt
@@ -0,0 +1 @@
+[section] tag:maction
diff --git a/content/test/data/accessibility/mathml/maction-node-expected-blink.txt b/content/test/data/accessibility/mathml/maction-node-expected-blink.txt
@@ -0,0 +1 @@
+mathMLRow
diff --git a/content/test/data/accessibility/mathml/maction-node-expected-mac.txt b/content/test/data/accessibility/mathml/maction-node-expected-mac.txt
@@ -0,0 +1 @@
+AXGroup AXSubrole=AXMathRow
diff --git a/content/test/data/accessibility/mathml/maction.html b/content/test/data/accessibility/mathml/maction.html
@@ -0,0 +1,13 @@
+<!DOCTYPE html>
+<!--
+@MAC-ALLOW:AXSubrole
+@AURALINUX-ALLOW:tag:*
+-->
+<math>
+ <maction class="test">
+ <mn>1</mn>
+ <mn>2</mn>
+ <mn>3</mn>
+ <mn>4</mn>
+ </maction>
+</math>
diff --git a/content/test/data/accessibility/mathml/math-node-expected-auralinux.txt b/content/test/data/accessibility/mathml/math-node-expected-auralinux.txt
@@ -0,0 +1 @@
+[math] tag:math
diff --git a/content/test/data/accessibility/mathml/math-node-expected-blink.txt b/content/test/data/accessibility/mathml/math-node-expected-blink.txt
@@ -0,0 +1 @@
+mathMLMath
diff --git a/content/test/data/accessibility/mathml/math-node-expected-mac.txt b/content/test/data/accessibility/mathml/math-node-expected-mac.txt
@@ -0,0 +1 @@
+AXGroup AXSubrole=AXDocumentMath
diff --git a/content/test/data/accessibility/mathml/math.html b/content/test/data/accessibility/mathml/math.html
@@ -0,0 +1,7 @@
+<!DOCTYPE html>
+<!--
+@MAC-ALLOW:AXSubrole
+@AURALINUX-ALLOW:tag:*
+-->
+<math class="test">
+</math>
diff --git a/content/test/data/accessibility/mathml/merror-node-expected-auralinux.txt b/content/test/data/accessibility/mathml/merror-node-expected-auralinux.txt
@@ -0,0 +1 @@
+[section] tag:merror