browser_rules_lineNumbers.js

Enable keyboard shortcuts

/* Any copyright is dedicated to the Public Domain.

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

"use strict";

// Test that editing a rule will update the line numbers of subsequent

// rules in the rule view.

const TESTCASE_URI = URL_ROOT + "doc_ruleLineNumbers.html";

add_task(async function () {

  await addTab(TESTCASE_URI);

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

  await selectNode("#testid", inspector);

  const bodyRuleEditor = getRuleViewRuleEditor(view, 3);

  const value = getRuleViewLinkTextByIndex(view, 2);

  // Note that this is relative to the <style>.

  is(value.slice(-2), ":6", "initial rule line number is 6");

  const onLocationChanged = once(

    bodyRuleEditor.rule.domRule,

    "location-changed"

);

  await addProperty(view, 1, "font-size", "23px");

  await onLocationChanged;

  const newBodyTitle = getRuleViewLinkTextByIndex(view, 2);

  // Note that this is relative to the <style>.

  is(newBodyTitle.slice(-2), ":7", "updated rule line number is 7");

});