/**
     * Tears down the test fixture.
     *
     * Called after every test case method.
     */
    @After
    public void tearDown()
    {
        stable.clear();
    }

    private void verifyAnyOrder(String expected)
    {
        String actual = outContent.toString(); // for debug purposes
        stdOut.println(actual);

        String[] actualStrings = actual.split(NEWLINE);
        String[] expectedStrings = expected.split(NEWLINE);

        int i = actualStrings.length;
        assertEquals(MAJOR_ERROR_MESSAGE, expectedStrings.length, i);

        Arrays.sort(actualStrings);
        Arrays.sort(expectedStrings);

        while (0 != i--)
            assertEquals(MINOR_ERROR_MESSAGE, expectedStrings[i], actualStrings[i]);
    } // end method