When you _build_ dependents of a component, the component and all of its dependent binaries are compiled, linked _and checked_. Checking components means running any <<#sec:check_tasks,check task>> including executing any test suites, so tests _are_ run when building a component.

        if (components.length == 0) {
            return path;
        }
        if (path.components.length == 0) {
            return this;
        }

        String[] descendantComponents = new String[components.length + path.components.length];
        arraycopy(components, 0, descendantComponents, 0, components.length);
        arraycopy(path.components, 0, descendantComponents, components.length, path.components.length);

                void mutateMyComponent(@Path("components.myComponent") $componentType component) {
                    component.data = "my component"
                }
                @Mutate
                void mutateMyComponentSource(@Path("components.myComponent.sources.myComponentSource") $sourceType componentSourceSet) {
                    componentSourceSet.data = "my component sources"
                }
                @Mutate

import org.gradle.internal.component.model.ComponentGraphSpecificResolveState
import org.gradle.internal.component.model.ComponentIdGenerator
import org.gradle.internal.component.model.ComponentOverrideMetadata
import org.gradle.internal.component.model.DependencyMetadata
import org.gradle.internal.component.model.ExcludeMetadata
import org.gradle.internal.component.model.GraphVariantSelector

    </component>
    <component>
      <role>org.apache.maven.wagon.Wagon</role>
      <role-hint>b2</role-hint>
      <implementation>org.apache.maven.artifact.manager.WagonB</implementation>
    </component>
    <component>
      <role>org.apache.maven.wagon.Wagon</role>
      <role-hint>c</role-hint>
      <implementation>org.apache.maven.artifact.manager.WagonC</implementation>
    </component>
    <component>

<?xml version="1.0" encoding="UTF-8"?>
<plexus>
  <components>
    <component>
      <role>org.apache.maven.project.ProjectBuildingHelper</role>
      <implementation>org.apache.maven.project.EmptyProjectBuildingHelper</implementation>
    </component>
  </components>

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE components PUBLIC "-//DBFLUTE//DTD LastaDi 1.0//EN"
	"http://dbflute.org/meta/lastadi10.dtd">
<components>
	<component name="scoreUpdater" class="org.codelibs.fess.score.ScoreUpdater">
	</component>

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE components PUBLIC "-//DBFLUTE//DTD LastaDi 1.0//EN" 
	"http://dbflute.org/meta/lastadi10.dtd">
<components>
	<component name="esClient"
		class="org.codelibs.fess.es.client.CrawlerEngineClient">
	</component>

        run ':checkDeps'

        then:
        outputContains 'Rule from settings applied on org:module:1.0'
    }

    def "can declare component metadata rules in settings using registar"() {
        settingsFile << """
            dependencyResolutionManagement {
                components.all(LoggingRule)
            }

            ${loggingRule('settings')}
        """
        repository {
            'org:module:1.0'()

  int count;

  @Param({"0", "1", "16", "32", "100"})
  int componentLength;

  private Iterable<String> components;

  @BeforeExperiment
  void setUp() {
    String component = Strings.repeat("a", componentLength);
    String[] raw = new String[count];
    Arrays.fill(raw, component);
    components = Arrays.asList(raw);
  }

  /** {@link Joiner} with a string delimiter. */
  @Benchmark