@Test
  public void test() throws IOException {

    EvoSuite evosuite = new EvoSuite();

    String targetClass = StringUtils.class.getCanonicalName();
    String testClass = StringUtilsEqualsIndexOfTest.class.getCanonicalName();
    Properties.TARGET_CLASS = targetClass;

    Properties.CRITERION = new Properties.Criterion[] {Properties.Criterion.LINE};

    Properties.OUTPUT_VARIABLES = RuntimeVariable.Total_Goals + "," + RuntimeVariable.LineCoverage;
    Properties.STATISTICS_BACKEND = StatisticsBackend.CSV;
    Properties.COVERAGE_MATRIX = true;

    String[] command =
        new String[] {"-class", targetClass, "-Djunit=" + testClass, "-measureCoverage"};

    SearchStatistics statistics = (SearchStatistics) evosuite.parseCommandLine(command);
    Assert.assertNotNull(statistics);

    Map<String, OutputVariable<?>> outputVariables = statistics.getOutputVariables();

    assertEquals(
        9, (Integer) outputVariables.get(RuntimeVariable.Total_Goals.name()).getValue(), 0.0);
    assertEquals(
        8, (Integer) outputVariables.get(RuntimeVariable.Covered_Goals.name()).getValue(), 0.0);
    assertEquals(
        8.0 / 9.0,
        (Double) outputVariables.get(RuntimeVariable.LineCoverage.name()).getValue(),
        0.0);
    assertEquals(
        1, (Integer) outputVariables.get(RuntimeVariable.Tests_Executed.name()).getValue(), 0.0);

    // check coverage matrix
    String coveragematrix_file =
        System.getProperty("user.dir")
            + File.separator
            + Properties.REPORT_DIR
            + File.separator
            + "data"
            + File.separator
            + Properties.TARGET_CLASS
            + "."
            + Properties.Criterion.LINE.name()
            + ".matrix";
    System.out.println("CoverageMatrix file " + coveragematrix_file);

    List<String> lines = Files.readAllLines(Paths.get(coveragematrix_file));
    // coverage of one test case
    assertEquals(1, lines.size());
    // all components have been covered ("1"), and the test case pass ("+")
    assertTrue(lines.get(0).contains("+"));
  }
  @Test
  public void testGetAllInterfaces() throws IOException {

    EvoSuite evosuite = new EvoSuite();

    String targetClass = ClassWithPrivateInterfaces.class.getCanonicalName();
    String testClass = ClassWithPrivateInterfacesTest.class.getCanonicalName();
    Properties.TARGET_CLASS = targetClass;

    Properties.CRITERION = new Properties.Criterion[] {Properties.Criterion.LINE};

    Properties.OUTPUT_VARIABLES = RuntimeVariable.Total_Goals + "," + RuntimeVariable.LineCoverage;
    Properties.STATISTICS_BACKEND = StatisticsBackend.CSV;
    Properties.COVERAGE_MATRIX = true;

    String[] command =
        new String[] {"-class", targetClass, "-Djunit=" + testClass, "-measureCoverage"};

    Object statistics = evosuite.parseCommandLine(command);
    Assert.assertNotNull(statistics);

    // Assert coverage

    String statistics_file =
        System.getProperty("user.dir")
            + File.separator
            + Properties.REPORT_DIR
            + File.separator
            + "statistics.csv";
    System.out.println("statistics_file: " + statistics_file);

    CSVReader reader = new CSVReader(new FileReader(statistics_file));
    List<String[]> rows = reader.readAll();
    assertTrue(rows.size() == 2);
    reader.close();

    assertEquals("14", CsvJUnitData.getValue(rows, RuntimeVariable.Total_Goals.name()));
    assertEquals(
        0.93,
        Double.valueOf(CsvJUnitData.getValue(rows, RuntimeVariable.LineCoverage.name())),
        0.01);

    // Assert that all test cases have passed

    String matrix_file =
        System.getProperty("user.dir")
            + File.separator
            + Properties.REPORT_DIR
            + File.separator
            + "data"
            + File.separator
            + targetClass
            + File.separator
            + Properties.Criterion.LINE.name()
            + File.separator
            + Properties.COVERAGE_MATRIX_FILENAME;
    System.out.println("matrix_file: " + matrix_file);

    List<String> lines = Files.readAllLines(FileSystems.getDefault().getPath(matrix_file));
    assertTrue(lines.size() == 1);

    assertEquals(
        13 + 1 + 1,
        lines
            .get(0)
            .replace(" ", "")
            .length()); // number of goals + test result ('+' pass, '-' fail)
    assertTrue(lines.get(0).replace(" ", "").endsWith("+"));
  }