/*
 * Copyright 2012 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.util

import spock.lang.Specification

import static org.gradle.util.Assertions.assertThat

class AssertionsTest extends Specification {

    static class Foo {
        List listField;
        Foo fooField;
    }

    def "knows if instances share state"() {
        given:
        def foo = new Foo()
        def list = [1]

        and:
        def root = new Foo(listField: list, fooField: foo)
        def equal = new Foo(listField: [1], fooField: new Foo())

        and:
        def sameList = new Foo(listField: list, fooField: new Foo())
        def sameFoo = new Foo(listField: [1], fooField: foo)

        expect:
        assertThat(root).doesNotShareStateWith(equal)

        when:
        assertThat(root).doesNotShareStateWith(sameList)
        then:
        def ex = thrown(AssertionError)
        ex.message.contains('listField')

        when:
        assertThat(root).doesNotShareStateWith(sameFoo)
        then:
        def ex2 = thrown(AssertionError)
        ex2.message.contains('fooField')
    }
}
