// GPars - Groovy Parallel Systems
//
// Copyright © 2008-11  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 groovyx.gpars.dataflow.operator

import groovyx.gpars.dataflow.DataflowVariable
import static groovyx.gpars.dataflow.Dataflow.task

/**
 * @author Vaclav Pech
 * Date: Sep 9, 2009
 */

public class DataflowTaskTest extends GroovyTestCase {

    public void testTaskRun() {
        final DataflowVariable a = new DataflowVariable()

        task {-> a << true }

        assertTrue a.val
    }

    public void testTaskRunWithImplicitArgumentToClosure() {
        final DataflowVariable a = new DataflowVariable()

        task { a << true }

        assertTrue a.val
    }

    public void testDelegate() {
        final DataflowVariable a = new DataflowVariable()

        task {a << delegate}

        assert this == a.val
    }

    public void testJoin() {
        assert 5 == task {5}.val

        def a
        def b

        def t1 = task {a = 10}
        def t2 = task {b = 20}
        [t1, t2]*.join()
        assert a == 10
        assert b == 20
    }
}
