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Test Info:
/* Any copyright is dedicated to the Public Domain.
"use strict";
// Test adding a CSS variable.
const TEST_URI = `
<style type='text/css'>
div {
color: var(--color);
}
</style>
<div></div>
`;
add_task(async function () {
await addTab("data:text/html;charset=utf-8," + encodeURIComponent(TEST_URI));
const { inspector, view } = await openRuleView();
await selectNode("div", inspector);
info("Check the initial state of --color which refers to an unset variable");
checkCSSVariableOutput(
view,
"div",
"color",
"ruleview-unmatched-variable",
"--color is not set"
);
info("Add the --color CSS variable");
await addProperty(view, 0, "--color", "lime");
checkCSSVariableOutput(
view,
"div",
"color",
"ruleview-variable",
"--color = lime"
);
});