void testCacheKey() throws Exception {
        Artifact a1 = repositorySystem.createArtifact("testGroup", "testArtifact", "1.2.3", "jar");
        @SuppressWarnings("deprecation")
        ArtifactRepository lr1 = new DelegatingLocalArtifactRepository(repositorySystem.createDefaultLocalRepository());
        ArtifactRepository rr1 = repositorySystem.createDefaultRemoteRepository();
        a1.setDependencyFilter(new ExcludesArtifactFilter(Arrays.asList("foo")));

    @Override
    public void setUp() throws Exception {
        super.setUp();
        file1 = File.createTempFile("synonym", ".txt");
        FileUtil.writeBytes(file1.getAbsolutePath(),
                "a1=>A1\nb1,b2 => B1\nc1 => C1, C2\nx1,X1\ny1, Y1, y2"
                        .getBytes(Constants.UTF_8));
        // TODO set up opensearch and dictionaryManager

    public ExceptionWithManyConstructorsButOnlyOneThrowable(String message, String a1) {
      super(message);
    }

    public ExceptionWithManyConstructorsButOnlyOneThrowable(String message, String a1, String a2) {
      super(message);
    }

    public ExceptionWithManyConstructorsButOnlyOneThrowable(
        String message, String a1, String a2, String a3) {
      super(message);
    }

        ResolutionNode a1n = createResolutionNode(a1);

        assertResolveConflict(a2n, a2n, a1n);
    }

    /**
     * Tests that <code>a:2.0</code> wins in the scenario:
     * <pre>
     * a:1.0
     * a:2.0
     * </pre>
     */
    @Test
    void testEqual() {
        ResolutionNode a1n = createResolutionNode(a1);
        ResolutionNode a2n = createResolutionNode(a2);

        ResolutionNode a1n = createResolutionNode(a1);

        assertResolveConflict(a2n, a2n, a1n);
    }

    /**
     * Tests that <code>a:1.0</code> wins in the scenario:
     * <pre>
     * a:1.0
     * a:2.0
     * </pre>
     */
    @Test
    void testEqual() {
        ResolutionNode a1n = createResolutionNode(a1);
        ResolutionNode a2n = createResolutionNode(a2);

        ResolutionNode a1n = createResolutionNode(a1);

        assertResolveConflict(a1n, a2n, a1n);
    }

    /**
     * Tests that <code>a:1.0</code> wins in the scenario:
     * <pre>
     * a:1.0
     * a:2.0
     * </pre>
     */
    @Test
    void testEqual() {
        ResolutionNode a1n = createResolutionNode(a1);
        ResolutionNode a2n = createResolutionNode(a2);

        ResolutionNode a1n = createResolutionNode(a1);

        assertResolveConflict(a1n, a2n, a1n);
    }

    /**
     * Tests that <code>a:1.0</code> wins in the scenario:
     * <pre>
     * a:1.0
     * a:2.0
     * </pre>
     */
    @Test
    void testEqual() {
        ResolutionNode a1n = createResolutionNode(a1);
        ResolutionNode a2n = createResolutionNode(a2);

    public ExceptionWithManyConstructorsButOnlyOneThrowable(String message, String a1) {
      super(message);
    }

    public ExceptionWithManyConstructorsButOnlyOneThrowable(String message, String a1, String a2) {
      super(message);
    }

    public ExceptionWithManyConstructorsButOnlyOneThrowable(
        String message, String a1, String a2, String a3) {
      super(message);
    }

    private static final String GROUP_ID = "test";

    // fields -----------------------------------------------------------------

    protected Artifact a1;

    protected Artifact a2;

    protected Artifact b1;

    private final String roleHint;

    @Inject
    private ArtifactFactory artifactFactory;

    private ConflictResolver conflictResolver;

        assertFalse(synonymItem1.equals(new SynonymItem(2, new String[] { "A" }, new String[] { "b" })));
    }

    public void test_toLineString() {
        assertEquals("a1,a2,a3=>b1,b2,b3",
                new SynonymItem(1, new String[] { "a1", "a2", "a3" }, new String[] { "b1", "b2", "b3" }).toLineString());
        assertEquals("a=>b", new SynonymItem(1, new String[] { "a" }, new String[] { "b" }).toLineString());