Function testSortWithValues

src/material/table/table-data-source.spec.ts:21–34

Test the data source's `sortData` function.

(values: (string | number)[])

    /** Test the data source's `sortData` function. */
    function testSortWithValues(values: (string | number)[]) {
      // The data source and MatSort expect the list to contain objects with values, where
      // the sort should be performed over a particular key.
      // Map the values into an array of objects where each value is keyed by "prop"
      // e.g. [0, 1, 2] -> [{prop: 0}, {prop: 1}, {prop: 2}]
      const data = values.map(v => ({'prop': v}));

      // Set the active sort to be on the "prop" key
      sort.active = 'prop';

      const reversedData = data.slice().reverse();
      const sortedData = dataSource.sortData(reversedData, sort);
      expect(sortedData).toEqual(data);
    }

    it('should be able to correctly sort an array of numbers', () => {
      testSortWithValues([-2, -1, 0, 1, 2]);