@Test
    void testGetLocation() {
        File txtFile = new File("target/test-classes/source.txt");
        FileSource source = new FileSource(txtFile);
        assertEquals(txtFile.getAbsolutePath(), source.getLocation());
    }

    @Test
    void testGetFile() {
        File txtFile = new File("target/test-classes/source.txt");
        FileSource source = new FileSource(txtFile);

            writer.print("[");
            writer.print(problem.getSeverity());
            writer.print("] ");
            writer.print(problem.getMessage());
            String location = problem.getLocation();
            if (!location.isEmpty()) {
                writer.print(" @ ");
                writer.print(location);
            }
            writer.println();
        }

        return buffer.toString();

            writer.print("[");
            writer.print(problem.getSeverity());
            writer.print("] ");
            writer.print(problem.getMessage());
            String location = problem.getLocation();
            if (!location.isEmpty()) {
                writer.print(" @ ");
                writer.println(location);
            }
        }

        return buffer.toString();
    }

     * empty string. The intention is to assist users during error reporting.
     *
     * @return A user-friendly hint about the location of the source, never {@code null}.
     */
    String getLocation();

        assertNull(source.getPath(), "Resolved sources should return null for getPath()");
        assertEquals(path.toString(), source.getLocation());
    }

    @Test
    void testModelIdFormat() {
        String location = "/tmp/test.xml";
        Path path = Paths.get(location);
        String modelId = "com.example:test-artifact:1.2.3";

     * value is undefined.
     *
     * @return The location of the problem, never {@code null}.
     */
    String getLocation();

    /**
     * Gets the exception that caused this problem (if any).
     *
     * @return The exception that caused this problem or {@code null} if not applicable.
     */
    Exception getException();

        @Nonnull
        public InputStream openStream() throws IOException {
            return Files.newInputStream(path);
        }

        @Override
        @Nonnull
        public String getLocation() {
            return location;
        }

        @Override
        @Nullable
        public Source resolve(@Nonnull String relative) {
            return new PathSource(path.resolve(relative));

     *   <li>Description: {@code <memory>} or {@code <database>}</li>
     * </ul>
     *
     * @return a non-null string describing the source location
     */
    @Nonnull
    String getLocation();

    /**
     * Resolves a new source relative to this one.
     * <p>
     * The resolution strategy depends on the source type:
     * <ul>
     *   <li>File sources resolve against their parent directory</li>

        });

        return checkstyleTask;
    }

    private static URI getBuildSrcCodeSource() {
        try {
            return CheckstylePrecommitPlugin.class.getProtectionDomain().getCodeSource().getLocation().toURI();
        } catch (URISyntaxException e) {
            throw new GradleException("Error determining build tools JAR location", e);
        }
    }

                    .map(MojoExecution::getPlugin)
                    .filter(p -> p.getLocation("version") != null
                            && p.getLocation("version").getSource() != null
                            && defaulModelId.equals(
                                    p.getLocation("version").getSource().getModelId()))
                    .distinct()