ON.stringify(mockResponse));
    const table = document.createElement('speed-releasing-table');
    this.addHTMLOutput(table);
  }, testOptions);

  test('firstInCategory', function() {
    testing_common.addXhrMock('/speed_releasing/undefined?=',
        JSON.stringify(mockResponse));
    const testTable = document.createElement('speed-releasing-table');
    assert.strictEqual(testTable.isFirstInCategory(0, 'test/test', 'false'),
        true);
    assert.strictEqual(testTable.isFirstInCategory(1, 'test/te