BuildInfoServiceTest.java

/*
 * Copyright 2017 Red Hat, Inc. and/or its affiliates.
 *
 * 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.kie.workbench.common.services.backend.builder.service;

import java.util.function.Consumer;

import org.guvnor.common.services.project.model.Project;
import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.kie.workbench.common.services.backend.builder.core.Builder;
import org.kie.workbench.common.services.backend.builder.core.LRUBuilderCache;
import org.mockito.Mock;
import org.mockito.invocation.InvocationOnMock;
import org.mockito.runners.MockitoJUnitRunner;
import org.mockito.stubbing.Answer;

import static org.junit.Assert.*;
import static org.mockito.Mockito.*;

@RunWith( MockitoJUnitRunner.class )
public class BuildInfoServiceTest {

    @Mock
    private BuildServiceImpl buildService;

    private BuildInfoService buildInfoService;

    @Mock
    private LRUBuilderCache cache;

    @Mock
    private Project project;

    @Mock
    private Builder builder;

    @Mock
    private Builder builderNotBuilt;

    @Before
    public void setUp( ) {
        buildInfoService = new BuildInfoService( buildService, cache );
    }

    @Test
    public void testGetBuildInfoWhenProjectIsBuilt( ) {
        when( cache.getBuilder( project ) ).thenReturn( builder );
        when( builder.isBuilt( ) ).thenReturn( true );
        BuildInfo expectedBuildInfo = new BuildInfoImpl( builder );

        BuildInfo result = buildInfoService.getBuildInfo( project );

        assertEquals( expectedBuildInfo, result );
        verify( cache, times( 1 ) ).getBuilder( project );
        verify( buildService, never( ) ).build( eq( project ), any( Consumer.class ) );
    }

    @Test
    public void testGetBuildInfoWhenProjectIsNotBuilt( ) {
        //the builder exists, but was never built.
        when( cache.getBuilder( project ) ).thenReturn( builderNotBuilt );
        when( builderNotBuilt.isBuilt( ) ).thenReturn( false );
        testBuildIsRequired( );
    }

    @Test
    public void testGetBuildInfoWhenBuilerNotExist( ) {
        //the builder don't exists.
        when( cache.getBuilder( project ) ).thenReturn( null );
        testBuildIsRequired( );
    }

    private void testBuildIsRequired( ) {
        doAnswer( new Answer< Void >( ) {
            public Void answer( InvocationOnMock invocation ) {
                Consumer consumer = ( Consumer ) invocation.getArguments( )[ 1 ];
                consumer.accept( builder );
                return null;
            }
        } ).when( buildService ).build( eq( project ), any( Consumer.class ) );

        BuildInfo result = buildInfoService.getBuildInfo( project );
        BuildInfo expectedBuildInfo = new BuildInfoImpl( builder );

        assertEquals( expectedBuildInfo, result );
        verify( cache, times( 1 ) ).getBuilder( project );
        verify( buildService, times( 1 ) ).build( eq( project ), any( Consumer.class ) );
    }
}