import static org.gradle.api.artifacts.type.ArtifactTypeDefinition.ARTIFACT_TYPE_ATTRIBUTE;
import static org.gradle.internal.component.external.model.TestFixturesSupport.TEST_FIXTURES_CAPABILITY_APPENDIX;

public abstract class DefaultDependencyHandler implements DependencyHandlerInternal, MethodMixIn {
    private final ConfigurationContainer configurationContainer;
    private final DependencyFactoryInternal dependencyFactory;

    /**
     * Build finished hook for persisting per project lockfile
     */
    void buildFinished();

    /**
     * The file to be used as the per-project lock file, exposed in the {@link DefaultDependencyHandler}.
     *
     * @return the lock file
     */
    RegularFileProperty getLockFile();

    /**

    private Configuration configuration = Mock()
    private ProjectFinder projectFinder = Mock()
    private DependencySet dependencySet = Mock()

    private DefaultDependencyHandler dependencyHandler = TestUtil.instantiatorFactory().decorateLenient().newInstance(DefaultDependencyHandler,

        !doesNotExist(alternatives) || errorOutput.contains("Could not find method $configuration() for arguments [some:module:1.0] on object of type org.gradle.api.internal.artifacts.dsl.dependencies.DefaultDependencyHandler")
        !forbidden(alternatives)    || failure.hasErrorOutput("Dependencies can not be declared against the `$configuration` configuration.")

        where:

import org.gradle.api.internal.artifacts.dsl.DefaultRepositoryHandler
import org.gradle.api.internal.artifacts.dsl.dependencies.DefaultDependencyConstraintHandler
import org.gradle.api.internal.artifacts.dsl.dependencies.DefaultDependencyHandler
import org.gradle.api.internal.artifacts.ivyservice.DefaultResolvedConfiguration
import org.gradle.api.internal.artifacts.ivyservice.ShortCircuitEmptyConfigurationResolver.EmptyLenientConfiguration

import org.gradle.api.internal.artifacts.dsl.PublishArtifactNotationParserFactory;
import org.gradle.api.internal.artifacts.dsl.dependencies.DefaultDependencyConstraintHandler;
import org.gradle.api.internal.artifacts.dsl.dependencies.DefaultDependencyHandler;
import org.gradle.api.internal.artifacts.dsl.dependencies.DependencyConstraintFactoryInternal;
import org.gradle.api.internal.artifacts.dsl.dependencies.DependencyFactoryInternal;

        then: "extension is not generated if there are no libraries defined"
        failure.assertHasCause("Could not get unknown property 'libs' for object of type org.gradle.api.internal.artifacts.dsl.dependencies.DefaultDependencyHandler")
    }

    def "libraries extension can be made visible to buildSrc"() {
        tomlFile << """[libraries]
lib = "org.gradle.test:lib:1.0"
"""
        file("buildSrc/settings.gradle") << """

In general, we are also looking at how we can improve the performance of build script compilation for both Groovy DSL and Kotlin DSL.

===== Encountering 'Could not find method X for arguments Y on DefaultDependencyHandler'

While the following error initially looks like a compile error, it is actually due to the fact that specific `Configuration`s have been removed.
Please refer to <<sec:configuration_removal>> for more details.

        then: "extension is not generated if there are no libraries defined"
        failure.assertHasCause("Could not get unknown property 'libs' for object of type org.gradle.api.internal.artifacts.dsl.dependencies.DefaultDependencyHandler")
    }

    def "buildSrc and main project have different libraries extensions"() {
        settingsFile << """
            dependencyResolutionManagement {
                versionCatalogs {