test_dataSourceBaseExpandHeaderLine.js

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/* This Source Code Form is subject to the terms of the Mozilla Public

 * License, v. 2.0. If a copy of the MPL was not distributed with this

 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

"use strict";

add_task(function test_dataSourceBaseExpandHeaderLine() {

  let didRefreshAllLinesOnScreen = false;

  const dataSourceBase = new DataSourceBase({

    refreshSingleLineOnScreen: () => {},

    refreshAllLinesOnScreen: () => {

      didRefreshAllLinesOnScreen = true;

},

    setLayout: () => {},

});

  const tooltip = {

    expand: "tooltip-expanded",

    collapse: "tooltip-collapsed",

};

  const headerLine = dataSourceBase.createHeaderLine("test-label", tooltip);

  const previousTemplate = headerLine.template;

  headerLine.executeToggle();

  Assert.ok(

    didRefreshAllLinesOnScreen,

    "Header line refreshes all lines on screen when expanded"

);

  Assert.equal(

    headerLine.toggleTooltip,

    tooltip.expand,

    "Header line toggles tooltip when expanded"

);

  Assert.notEqual(

    previousTemplate,

    headerLine.template,

    "Header line toggles template when expanded"

);

});