if ok {
		upgradeCfg.Apply.EtcdUpgrade = etcdUpgrade
	} else {
		return cmdutil.TypeMismatchErr("etcdUpgrade", "bool")
	}

	renewCerts, ok := cmdutil.ValueFromFlagsOrConfig(flagSet, options.CertificateRenewal, upgradeCfg.Apply.CertificateRenewal, &flags.renewCerts).(*bool)
	if ok {
		upgradeCfg.Apply.CertificateRenewal = renewCerts
	} else {

        manager.findPlugin("foo") == null
    }

    def "can apply rules plugin with no id"() {
        when:
        manager.apply(rulesClass)

        then:
        1 * target.applyRules(null, rulesClass)

        and:
        manager.pluginContainer.isEmpty()
    }

    def "can apply rules plugin by class with id"() {
        given:
        addPluginId("foo", rulesClass)

        when:

    assertFalse(isNumber.apply(null));
  }

  @GwtIncompatible // Predicates.instanceOf
  public void testIsInstanceOf_interface() {
    Predicate<@Nullable Object> isComparable = Predicates.instanceOf(Comparable.class);

    assertTrue(isComparable.apply(1));
    assertTrue(isComparable.apply(2.0f));
    assertTrue(isComparable.apply(""));
    assertFalse(isComparable.apply(null));
  }

            "src/integTest/groovy",
            "src/integTest/resources"
        ]

        expectedOrder.each { testFile(it).mkdirs() }

        runEclipseTask """
apply plugin: "java"
apply plugin: "groovy"
apply plugin: "eclipse"

sourceSets {
    integTest {
        resources { srcDir "src/integTest/resources" }
        java { srcDir "src/integTest/java" }

                id("plugin-id").version("1.0").apply(true)
                id("plugin-id").version("2.0") apply true
                id("plugin-id") version "3.0".apply(true) // BUG!
                id("plugin-id") version "4.0" apply true

                id("plugin-id").apply(false).version("1.0")
                id("plugin-id").apply(false) version "2.0"
                id("plugin-id") apply false.version("3.0") // BUG!

    assertEquals(p1.apply(1.0f), p2.apply(1.0f));
    assertEquals(p1.apply(5.0f), p2.apply(5.0f));
  }

  public void testForPredicate() {
    Function<Object, Boolean> alwaysTrue = Functions.forPredicate(Predicates.alwaysTrue());
    Function<Object, Boolean> alwaysFalse = Functions.forPredicate(Predicates.alwaysFalse());

    assertTrue(alwaysTrue.apply(0));
    assertFalse(alwaysFalse.apply(0));

    assertFalse(isNumber.apply(null));
  }

  @GwtIncompatible // Predicates.instanceOf
  public void testIsInstanceOf_interface() {
    Predicate<@Nullable Object> isComparable = Predicates.instanceOf(Comparable.class);

    assertTrue(isComparable.apply(1));
    assertTrue(isComparable.apply(2.0f));
    assertTrue(isComparable.apply(""));
    assertFalse(isComparable.apply(null));
  }

        plugins.empty

        when:
        container.apply(pluginClass)

        then:
        plugins == []
    }

    def "calls apply on target for type only"() {
        when:
        container.apply(plugin1Class)

        then:
        1 * target.applyImperative(null, { plugin1Class.isInstance(it) })
    }

    def "calls apply on target for id"() {
        when:

            }
        """

        file("sub/build.gradle") << "apply from: 'script.gradle'"
        file("sub/script.gradle") << "someMethod()"

        when:
        run "help"

        then:
        output.contains("from some method")
    }

    @Issue("https://issues.gradle.org/browse/GRADLE-3082")
    def "can use apply block syntax to apply multiple scripts"() {
        given:
        buildScript """

    checkNotNull(keyFunction);
    checkNotNull(valueFunction);
    return Collector.of(
        ImmutableMap.Builder<K, V>::new,
        (builder, input) -> builder.put(keyFunction.apply(input), valueFunction.apply(input)),
        ImmutableMap.Builder::combine,
        ImmutableMap.Builder::buildOrThrow);
  }

  static <T extends @Nullable Object, K, V> Collector<T, ?, ImmutableMap<K, V>> toImmutableMap(