browser_changes_declaration_remove.js

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/* Any copyright is dedicated to the Public Domain.

 http://creativecommons.org/publicdomain/zero/1.0/ */

"use strict";

// Test that removing a CSS declaration from a rule in the Rule view is tracked.

const TEST_URI = `

  <style type='text/css'>

    div {

      color: red;

  </style>

  <div></div>

`;

add_task(async function () {

  await addTab("data:text/html;charset=utf-8," + encodeURIComponent(TEST_URI));

  const { inspector, view: ruleView } = await openRuleView();

  const { document: doc, store } = selectChangesView(inspector);

  await selectNode("div", inspector);

  const prop = getTextProperty(ruleView, 1, { color: "red" });

  const onTrackChange = waitForDispatch(store, "TRACK_CHANGE");

  info("Remove the first declaration");

  await removeProperty(ruleView, prop);

  info("Wait for change to be tracked");

  await onTrackChange;

  const removeDecl = getRemovedDeclarations(doc);

  is(removeDecl.length, 1, "One declaration was tracked as removed");

is(

    removeDecl[0].property,

    "color",

    "Correct declaration name was tracked as removed"

);

is(

    removeDecl[0].value,

    "red",

    "Correct declaration value was tracked as removed"

);

});