test_dataSourceBaseRemoveLine.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";

const linePrototype = {

  record: { writable: true },

};

add_task(function test_dataSourceBaseRemoveLine() {

  const dataSourceBase = new DataSourceBase({

    refreshSingleLineOnScreen: () => {},

    refreshAllLinesOnScreen: () => {},

    setLayout: () => {},

});

  const lines = addLinesToDataSource(dataSourceBase, linePrototype);

  const removedLine = lines.pop();

  mockReloadData(dataSourceBase, [...lines]);

  const found = dataSourceBase.lines.find(line => line.id === removedLine.id);

  Assert.ok(

    !found,

    `DataSourceBase removed line ${removedLine.id} from its list of lines`

);

});