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Test Info:
/* Any copyright is dedicated to the Public Domain.
"use strict";
// Tests that the rule-view displays correctly on MathML elements.
const TEST_URI = `
<div>
<mfrac>
<msubsup>
<mi>a</mi>
<mi>i</mi>
<mi>j</mi>
</msubsup>
<msub>
<mi>x</mi>
<mn>0</mn>
</msub>
</mfrac>
</math>
</div>
`;
add_task(async function () {
await addTab("data:text/html;charset=utf-8," + encodeURIComponent(TEST_URI));
const { inspector, view } = await openRuleView();
info("Select the DIV node and verify the rule-view shows rules");
await selectNode("div", inspector);
ok(
view.element.querySelectorAll(".ruleview-rule").length,
"The rule-view shows rules for the div element"
);
info("Select various MathML nodes and verify the rule-view is empty");
await selectNode("math", inspector);
ok(
!view.element.querySelectorAll(".ruleview-rule").length,
"The rule-view is empty for the math element"
);
await selectNode("msubsup", inspector);
ok(
!view.element.querySelectorAll(".ruleview-rule").length,
"The rule-view is empty for the msubsup element"
);
await selectNode("mn", inspector);
ok(
!view.element.querySelectorAll(".ruleview-rule").length,
"The rule-view is empty for the mn element"
);
info("Select again the DIV node and verify the rule-view shows rules");
await selectNode("div", inspector);
ok(
view.element.querySelectorAll(".ruleview-rule").length,
"The rule-view shows rules for the div element"
);
});