org.gradle.api.internal.DefaultDomainObjectSetTest.groovy Maven / Gradle / Ivy

/*
 * Copyright 2011 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.gradle.api.internal

import org.gradle.api.Action

import static org.gradle.util.WrapUtil.toList

class DefaultDomainObjectSetTest extends AbstractDomainObjectCollectionSpec {
    DefaultDomainObjectSet set = new DefaultDomainObjectSet(CharSequence, callbackActionDecorator)
    DefaultDomainObjectSet container = set
    StringBuffer a = new StringBuffer("a")
    StringBuffer b = new StringBuffer("b")
    StringBuffer c = new StringBuffer("c")
    StringBuilder d = new StringBuilder("d")
    boolean externalProviderAllowed = true
    boolean directElementAdditionAllowed = true
    boolean elementRemovalAllowed = true
    final boolean supportsBuildOperations = true

    def "findAll() filters elements and retains iteration order"() {
        set.add("a")
        set.add("b")
        set.add("c")
        set.add("d")

        expect:
        set.findAll { it != "c" } == ["a", "b", "d"] as LinkedHashSet
    }

    def "Set semantics preserved if backing collection is a filtered composite set"() {
        def c1 = new DefaultDomainObjectSet(String, callbackActionDecorator)
        def c2 = new DefaultDomainObjectSet(String, callbackActionDecorator)
        given:
        def composite = CompositeDomainObjectSet.create(String, c1, c2)
        def set = new DefaultDomainObjectSet(String, composite.getStore(), callbackActionDecorator)

        when:
        c1.add("a")
        c1.add("b")
        c1.add("c")
        c1.add("d")
        c2.add("a")
        c2.add("c")

        then:
        set.size() == 4
        set.findAll { it != "c" } == ["a", "b", "d"] as LinkedHashSet
        set.iterator().collect { it } == ["a", "b", "c", "d"]
    }

    def callsVetoActionBeforeObjectIsAdded() {
        def action = Mock(Action)
        container.beforeCollectionChanges(action)

        when:
        container.add("a")

        then:
        1 * action.execute(null)
        0 * _
    }

    def objectIsNotAddedWhenVetoActionThrowsAnException() {
        def action = Mock(Action)
        def failure = new RuntimeException()
        container.beforeCollectionChanges(action)

        when:
        container.add("a")

        then:
        def e = thrown(RuntimeException)
        e == failure

        and:
        1 * action.execute(null) >> { throw failure }

        and:
        !toList(container).contains("a")
    }

    def callsVetoActionOnceBeforeCollectionIsAdded() {
        def action = Mock(Action)
        container.beforeCollectionChanges(action)

        when:
        container.addAll(["a", "b"])

        then:
        1 * action.execute(null)
        0 * _
    }

    def callsVetoActionBeforeObjectIsRemoved() {
        def action = Mock(Action)
        container.beforeCollectionChanges(action)

        when:
        container.remove("a")

        then:
        1 * action.execute(null)
        0 * _
    }

    def callsVetoActionBeforeObjectIsRemovedUsingIterator() {
        def action = Mock(Action)

        container.add("a")
        container.beforeCollectionChanges(action)

        def iterator = container.iterator()
        iterator.next()

        when:
        iterator.remove()

        then:
        1 * action.execute(null)
        0 * _
    }

    def objectIsNotRemovedWhenVetoActionThrowsAnException() {
        def action = Mock(Action)
        def failure = new RuntimeException()

        container.add("a")
        container.beforeCollectionChanges(action)

        when:
        container.remove("a")

        then:
        def e = thrown(RuntimeException)
        e == failure

        and:
        1 * action.execute(null) >> { throw failure }

        and:
        toList(container).contains("a")
    }

    def callsVetoActionBeforeCollectionIsCleared() {
        def action = Mock(Action)
        container.beforeCollectionChanges(action)

        when:
        container.clear()

        then:
        1 * action.execute(null)
        0 * _
    }

    def callsVetoActionOnceBeforeCollectionIsRemoved() {
        def action = Mock(Action)
        container.beforeCollectionChanges(action)

        when:
        container.removeAll(["a", "b"])

        then:
        1 * action.execute(null)
        0 * _
    }

    def callsVetoActionOnceBeforeCollectionIsIntersected() {
        def action = Mock(Action)
        container.add("a")
        container.add("b")
        container.beforeCollectionChanges(action)

        when:
        container.retainAll(toList())

        then:
        1 * action.execute(null)
        0 * _
    }
}