def descriptor = new DefaultRepositoryContentDescriptor({ "my-repo" }, new VersionParser())

        given:
        descriptor."exclude$method"(expr)

        when:
        def action = descriptor.toContentFilter()
        details.moduleId >> fooMod
        details.componentId >> DefaultModuleComponentIdentifier.newId(fooMod, version)
        action.execute(details)

        then:
        if (excluded) {

    public void snapshotsOnly() {
        snapshots = true;
        releases = false;
    }

    @Override
    public Action<? super ArtifactResolutionDetails> toContentFilter() {
        Action<? super ArtifactResolutionDetails> filter = super.toContentFilter();
        if (!snapshots || !releases) {
            Action<? super ArtifactResolutionDetails> action = details -> {
                if (!details.isVersionListing()) {

import javax.annotation.Nullable;
import java.util.Map;
import java.util.Set;

public interface RepositoryContentDescriptorInternal extends RepositoryContentDescriptor {
    Action<? super ArtifactResolutionDetails> toContentFilter();
    RepositoryContentDescriptorInternal asMutableCopy();

    /**
     * Returns values added by {@link #onlyForConfigurations}.
     */
    @Nullable
    Set<String> getIncludedConfigurations();

        configureAction.execute(repositoryContentDescriptor);
    }

    @Override
    public Action<? super ArtifactResolutionDetails> getContentFilter() {
        return repositoryContentDescriptor.toContentFilter();
    }

    @Nullable
    @Override
    public Set<String> getIncludedConfigurations() {
        return repositoryContentDescriptor.getIncludedConfigurations();
    }

    @Nullable
    @Override

        return repositoryContentDescriptor.asMutableCopy();
    }

    @Override
    public Action<? super ArtifactResolutionDetails> getContentFilter() {
        return repositoryContentDescriptor.toContentFilter();
    }

    @Override
    public Set<String> getIncludedConfigurations() {
        return repositoryContentDescriptor.getIncludedConfigurations();
    }

    @Override

                repositoryNameSupplier.get() +
                "' after repository has been used");
        }
    }

    @Override
    public Action<? super ArtifactResolutionDetails> toContentFilter() {
        if (cachedAction != null) {
            return cachedAction;
        }
        locked = true;
        if (includeSpecs == null && excludeSpecs == null) {
            // no filtering in place