/*
 * Copyright 2016 The Apache Software Foundation.
 *
 * 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.apache.maven.it;

import java.io.File;
import java.util.List;
import java.util.regex.Pattern;
import org.apache.maven.it.util.ResourceExtractor;
import static junit.framework.Assert.assertTrue;

/**
 * Integration tests for <a href="https://issues.apache.org/jira/browse/MNG-4463">MNG-4463</a>.
 *
 * @author Christian Schulte
 */
public class MavenITmng4463DependencyManagementImportVersionRanges
    extends AbstractMavenIntegrationTestCase
{

    public MavenITmng4463DependencyManagementImportVersionRanges()
    {
        super( "[4.0.0-alpha-1,)" );
    }

    public void testInclusiveUpperBoundResolvesToHighestVersion()
        throws Exception
    {
        final File testDir = ResourceExtractor.simpleExtractResources( getClass(), "/mng-4463/inclusive-upper-bound" );
        final Verifier verifier = newVerifier( testDir.getAbsolutePath(), "remote" );
        verifier.setAutoclean( false );
        verifier.deleteDirectory( "target" );
        verifier.executeGoal( "validate" );
        verifier.verifyErrorFreeLog();
        verifier.resetStreams();

        final List<String> artifacts = verifier.loadLines( "target/compile.txt", "UTF-8" );
        assertTrue( artifacts.toString(), artifacts.contains( "org.apache.maven:maven-plugin-api:jar:3.0" ) );
    }

    public void testExclusiveUpperBoundResolvesToHighestVersion()
        throws Exception
    {
        final File testDir = ResourceExtractor.simpleExtractResources( getClass(), "/mng-4463/exclusive-upper-bound" );
        final Verifier verifier = newVerifier( testDir.getAbsolutePath(), "remote" );
        verifier.setAutoclean( false );
        verifier.deleteDirectory( "target" );
        verifier.executeGoal( "validate" );
        verifier.verifyErrorFreeLog();
        verifier.resetStreams();

        List<String> artifacts = verifier.loadLines( "target/compile.txt", "UTF-8" );
        assertTrue( artifacts.toString(), artifacts.contains( "org.apache.maven:maven-plugin-api:jar:3.0" ) );
    }

    public void testFailureWithoutUpperBound()
        throws Exception
    {
        final File testDir = ResourceExtractor.simpleExtractResources( getClass(), "/mng-4463/no-upper-bound" );
        final Verifier verifier = newVerifier( testDir.getAbsolutePath(), "remote" );

        try
        {
            verifier.setAutoclean( false );
            verifier.deleteDirectory( "target" );
            verifier.executeGoal( "validate" );
            fail( "Expected 'VerificationException' not thrown." );
        }
        catch ( final VerificationException e )
        {
            final List<String> lines = verifier.loadFile( new File( testDir, "log.txt" ), false );
            assertTrue( "Expected error message not found.",
                        indexOf( lines, ".*dependency version range.*does not specify an upper bound.*" ) >= 0 );
        }
        finally
        {
            verifier.resetStreams();
        }
    }

    private static int indexOf( final List<String> logLines, final String regex )
    {
        final Pattern pattern = Pattern.compile( regex );

        for ( int i = 0, l0 = logLines.size(); i < l0; i++ )
        {
            if ( pattern.matcher( logLines.get( i ) ).matches() )
            {
                return i;
            }
        }

        return -1;
    }

}