tests/org.eclipse.wst.common.project.facet.core.tests/src/org/eclipse/wst/common/project/facet/core/tests/FacetConstraintsTests.java

package org.eclipse.wst.common.project.facet.core.tests;

import java.util.Arrays;
import java.util.Collections;
import java.util.HashSet;
import java.util.Set;

import junit.framework.Test;
import junit.framework.TestCase;
import junit.framework.TestSuite;

import org.eclipse.wst.common.project.facet.core.IProjectFacet;
import org.eclipse.wst.common.project.facet.core.IProjectFacetVersion;
import org.eclipse.wst.common.project.facet.core.ProjectFacetsManager;

public class FacetConstraintsTests

    extends TestCase
    
{
    private static IProjectFacet f1;
    private static IProjectFacetVersion f1v10;
    
    private static IProjectFacet f2;
    private static IProjectFacetVersion f2v10;
    
    private static IProjectFacet f3;
    private static IProjectFacetVersion f3v10;

    private static IProjectFacet f4;
    private static IProjectFacetVersion f4v10;

    private static IProjectFacet f5;
    private static IProjectFacetVersion f5v10;
    
    private static IProjectFacet f6;
    private static IProjectFacetVersion f6v10;
    private static IProjectFacetVersion f6v23;
    private static IProjectFacetVersion f6v37;
    private static IProjectFacetVersion f6v40;
    private static IProjectFacetVersion f6v45;

    private static IProjectFacet f7;
    private static IProjectFacetVersion f7v10;
    
    static
    {
        f1 = ProjectFacetsManager.getProjectFacet( "fct_f1" );
        f1v10 = f1.getVersion( "1.0" );

        f2 = ProjectFacetsManager.getProjectFacet( "fct_f2" );
        f2v10 = f2.getVersion( "1.0" );

        f3 = ProjectFacetsManager.getProjectFacet( "fct_f3" );
        f3v10 = f3.getVersion( "1.0" );

        f4 = ProjectFacetsManager.getProjectFacet( "fct_f4" );
        f4v10 = f4.getVersion( "1.0" );

        f5 = ProjectFacetsManager.getProjectFacet( "fct_f5" );
        f5v10 = f5.getVersion( "1.0" );

        f6 = ProjectFacetsManager.getProjectFacet( "fct_f6" );
        f6v10 = f6.getVersion( "1.0" );
        f6v23 = f6.getVersion( "2.3" );
        f6v37 = f6.getVersion( "3.7" );
        f6v40 = f6.getVersion( "4.0" );
        f6v45 = f6.getVersion( "4.5" );

        f7 = ProjectFacetsManager.getProjectFacet( "fct_f7" );
        f7v10 = f7.getVersion( "1.0" );
    }
    
    private FacetConstraintsTests( final String name )
    {
        super( name );
    }
    
    public static Test suite()
    {
        final TestSuite suite = new TestSuite();
        
        suite.setName( "Facet Constraint Tests" );

        suite.addTest( new FacetConstraintsTests( "testIndirectConflict1" ) );
        suite.addTest( new FacetConstraintsTests( "testIndirectConflict2" ) );
        suite.addTest( new FacetConstraintsTests( "testIndirectConflict3" ) );
        suite.addTest( new FacetConstraintsTests( "testIndirectConflict4" ) );
        suite.addTest( new FacetConstraintsTests( "testIndirectConflict5" ) );
        suite.addTest( new FacetConstraintsTests( "testIndirectConflict6" ) );
        suite.addTest( new FacetConstraintsTests( "testIndirectConflict7" ) );
        suite.addTest( new FacetConstraintsTests( "testIndirectConflict8" ) );
        suite.addTest( new FacetConstraintsTests( "testRequiresWithNoVersion" ) );
        
        return suite;
    }
    
    /*
     * Tests whether the conflict detection code picks up on an indirect
     * conflict. Also tests that a soft constraint is not used to flag a
     * conflict.
     * 
     * Here is the relationship diagram between the five facets involved in 
     * this test: 
     * 
     *           conflicts            requires
     *   f1 ----------------> f2 <---------------- f3
     *   f4 <----------------    <---------------- f5
     *           conflicts         soft requires
     * 
     * These case should come back positive for conflict:
     * 
     *   f1 with f3
     *   f3 with f1
     *   f4 with f3
     *   f3 with f4
     *   
     * These case should come back negative for conflict:
     * 
     *   f1 with f5
     *   f5 with f1
     *   f4 with f5
     *   f5 with f4
     */
    
    public void testIndirectConflict1()
    {
        assertTrue( f1v10.conflictsWith( f3v10 ) );
    }
    
    public void testIndirectConflict2()
    {
        assertTrue( f3v10.conflictsWith( f1v10 ) );
    }

    public void testIndirectConflict3()
    {
        assertTrue( f4v10.conflictsWith( f3v10 ) );
    }

    public void testIndirectConflict4()
    {
        assertTrue( f3v10.conflictsWith( f4v10 ) );
    }
    
    public void testIndirectConflict5()
    {
        assertFalse( f1v10.conflictsWith( f5v10 ) );
    }
    
    public void testIndirectConflict6()
    {
        assertFalse( f5v10.conflictsWith( f1v10 ) );
    }

    public void testIndirectConflict7()
    {
        assertFalse( f4v10.conflictsWith( f5v10 ) );
    }

    public void testIndirectConflict8()
    {
        assertFalse( f5v10.conflictsWith( f4v10 ) );
    }
    
    /**
     * Tests the following constraint:
     * 
     * <pre>
     *   &lt;requires facet="fct_f6"/&gt;
     * </pre>
     */
    
    public void testRequiresWithNoVersion()
    {
        assertFalse( f7v10.getConstraint().check( Collections.EMPTY_SET ).isOK() );
        assertTrue( f7v10.getConstraint().check( asSet( f6v10 ) ).isOK() );
        assertTrue( f7v10.getConstraint().check( asSet( f6v23 ) ).isOK() );
        assertTrue( f7v10.getConstraint().check( asSet( f6v37 ) ).isOK() );
        assertTrue( f7v10.getConstraint().check( asSet( f6v40 ) ).isOK() );
        assertTrue( f7v10.getConstraint().check( asSet( f6v45 ) ).isOK() );
    }
    
    private static Set asSet( final Object obj )
    {
        return asSet( new Object[] { obj } );
    }

    private static Set asSet( final Object[] array )
    {
        final HashSet set = new HashSet();
        set.addAll( Arrays.asList( array ) );
        return set;
    }
}