public void testDiffCommand()

in maven-scm-test/src/main/java/org/apache/maven/scm/tck/command/diff/DiffCommandTckTest.java [50:146]
40 lines of code
1 McCabe index (conditional complexity)

    public void testDiffCommand() throws Exception {
        ScmRepository repository = getScmRepository();

        // ----------------------------------------------------------------------
        // Change the files
        // ----------------------------------------------------------------------

        //
        // readme.txt is changed (changed file in the root directory)
        // project.xml is added (added file in the root directory)
        // src/test/resources is untouched (a empty directory is left untouched)
        // src/test/java is untouched (a non empty directory is left untouched)
        // src/test/java/org (a empty directory is added)
        // src/main/java/org/Foo.java (a non empty directory is added)
        //

        // /readme.txt
        ScmTestCase.makeFile(getWorkingCopy(), "/readme.txt", "changed readme.txt");

        // /project.xml
        ScmTestCase.makeFile(getWorkingCopy(), "/project.xml", "changed project.xml");

        addToWorkingTree(getWorkingCopy(), new File("project.xml"), repository);

        // /src/test/java/org
        ScmTestCase.makeDirectory(getWorkingCopy(), "/src/test/java/org");

        addToWorkingTree(getWorkingCopy(), new File("src/test/java/org"), repository);

        // /src/main/java/org/Foo.java
        ScmTestCase.makeFile(getWorkingCopy(), "/src/main/java/org/Foo.java");

        addToWorkingTree(getWorkingCopy(), new File("src/main/java/org"), repository);

        // src/main/java/org/Foo.java
        addToWorkingTree(getWorkingCopy(), new File("src/main/java/org/Foo.java"), repository);

        // ----------------------------------------------------------------------
        // Diff the project
        // ----------------------------------------------------------------------

        ScmProvider provider = getScmManager().getProviderByUrl(getScmUrl());
        ScmFileSet fileSet = new ScmFileSet(getWorkingCopy());
        DiffScmResult result = provider.diff(repository, fileSet, null, (ScmVersion) null);

        assertNotNull("The command returned a null result.", result);

        assertResultIsSuccess(result);

        List<ScmFile> changedFiles = result.getChangedFiles();

        Map<String, CharSequence> differences = result.getDifferences();

        assertEquals("Expected 3 files in the changed files list " + changedFiles, 3, changedFiles.size());

        assertEquals("Expected 3 files in the differences list " + differences, 3, differences.size());

        // ----------------------------------------------------------------------
        // Assert the files in the changed files list
        // ----------------------------------------------------------------------

        Iterator<ScmFile> files = new TreeSet<ScmFile>(changedFiles).iterator();

        // Check Foo.java
        ScmFile file = files.next();

        assertPath("src/main/java/org/Foo.java", file.getPath());

        assertTrue(file.getStatus().isDiff());

        String postRangeStr = "+/src/main/java/org/Foo.java\n\\ No newline at end of file\n";
        String actualStr = differences.get(file.getPath()).toString();
        assertTrue(actualStr.endsWith(postRangeStr));

        // Check readme.txt
        file = files.next();

        assertPath("readme.txt", file.getPath());

        assertTrue(file.getStatus().isDiff());

        postRangeStr =
                "-/readme.txt\n\\ No newline at end of file\n+changed readme.txt\n\\ No newline at end of file\n";
        actualStr = differences.get(file.getPath()).toString();
        assertTrue(actualStr.endsWith(postRangeStr));

        // Check project.xml
        file = files.next();

        assertPath("project.xml", file.getPath());

        postRangeStr = "+changed project.xml\n\\ No newline at end of file\n";
        actualStr = differences.get(file.getPath()).toString();
        assertTrue(actualStr.endsWith(postRangeStr));

        assertTrue(file.getStatus().isDiff());
    }