}

    @Override
    public ValueSnapshot snapshot(@Nullable Object value, ValueSnapshotter snapshotter) {
        PrimitiveType valueType = PrimitiveType.maybeOfValue(value);
        if (primitiveType == valueType && primitiveType.equals(array, value)) {
            return this;
        }
        ValueSnapshot snapshot = snapshotter.snapshot(value);
        if (snapshot.equals(this)) {
            return this;
        }

        inputFile.text = 'content'
        succeeds "b"

        then:
        result.assertTasksNotSkipped(":a", ":b")

        when:
        TestFile.Snapshot aSnapshot = outputFileA.snapshot()
        TestFile.Snapshot bSnapshot = outputFileB.snapshot()

        then:
        outputFileA.text == '[content]'
        outputFileB.text == '[[content]]'

        // No changes
        when:

            return new ExternalResourceName(rootUri, path);
        }

        /**
         * Return the location of the snapshot `maven-metadata.xml`, which contains details of the latest published snapshot for a Maven module.
         */
        ExternalResourceName getSnapshotMetadataLocation() {

        }
        if (stage != null && gradleVersion.stage == null) {
            return -1;
        }

        Long thisSnapshot = snapshot == null ? Long.MAX_VALUE : snapshot;
        Long theirSnapshot = gradleVersion.snapshot == null ? Long.MAX_VALUE : gradleVersion.snapshot;

        if (thisSnapshot.equals(theirSnapshot)) {
            return version.compareTo(gradleVersion.version);
        } else {

            ArtifactRepository localRepository)
            throws RepositoryMetadataStoreException {
        // TODO this could be a lot nicer... should really be in the snapshot transformation?
        if (metadata.isSnapshot()) {
            Metadata prevMetadata = metadata.getMetadata();

            for (ArtifactRepository repository : previousMetadata.keySet()) {

            if (artifact.isSnapshot()) {
                Matcher matcher = Artifact.VERSION_FILE_PATTERN.matcher(artifact.getVersion());
                if (matcher.matches()) {
                    Snapshot snapshot = new Snapshot();
                    snapshot.setTimestamp(matcher.group(2));
                    try {
                        snapshot.setBuildNumber(Integer.parseInt(matcher.group(3)));

    }

    @Override
    public void write(Encoder encoder, ValueSnapshot snapshot) throws Exception {
        if (snapshot == NullValueSnapshot.INSTANCE) {
            encoder.writeSmallInt(NULL_SNAPSHOT);
        } else if (snapshot instanceof StringValueSnapshot) {
            StringValueSnapshot stringSnapshot = (StringValueSnapshot) snapshot;
            encoder.writeSmallInt(STRING_SNAPSHOT);

        renderer.enableUserStandardOutputListeners()
        renderer.addStandardOutputListener(listener)
        renderer.configure(LogLevel.INFO)
        def snapshot = renderer.snapshot()
        renderer.configure(LogLevel.DEBUG)

        when:
        renderer.restore(snapshot)
        renderer.onOutput(event('info', LogLevel.INFO))
        renderer.onOutput(event('debug', LogLevel.DEBUG))

        then:

import org.gradle.internal.snapshot.FileSystemLocationSnapshot;
import org.gradle.internal.snapshot.FileSystemSnapshot;
import org.gradle.internal.snapshot.MissingFileSnapshot;
import org.gradle.internal.snapshot.RegularFileSnapshot;
import org.gradle.internal.snapshot.SnapshottingFilter;
import org.gradle.internal.snapshot.impl.DirectorySnapshotter;
import org.gradle.internal.snapshot.impl.DirectorySnapshotterStatistics;

        assertEquals("1.0-SNAPSHOT", target.getVersion());
    }
    /*--- END test common metadata ---*/

    /*--- START test "groupId/artifactId/version" metadata ---*/
    @Test
    void mergeSnapshotWithEmptyList() throws Exception {
        Snapshot snapshot = new Snapshot();
        snapshot.setBuildNumber(3);
        snapshot.setTimestamp("20200710.072412");