ClassChecksTest.java

/*
 * Copyright 2014 Lukas Krejci
 *
 * 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.revapi.java;

import org.junit.Assert;
import org.junit.Test;
import org.revapi.java.spi.Code;

/**
 * @author Lukas Krejci
 * @since 0.1
 */
public class ClassChecksTest extends AbstractJavaElementAnalyzerTest {

    @Test
    public void testClassVisibilityReduced() throws Exception {
        ProblemOccurrenceReporter reporter = new ProblemOccurrenceReporter();
        runAnalysis(reporter, "v1/classes/ClassVisibilityReduced.java", "v2/classes/ClassVisibilityReduced.java");

        Assert.assertEquals(1, (int) reporter.getProblemCounters().get(Code.CLASS_VISIBILITY_REDUCED.code()));
    }

    @Test
    public void testClassVisibilityIncreased() throws Exception {
        ProblemOccurrenceReporter reporter = new ProblemOccurrenceReporter();
        runAnalysis(reporter, "v2/classes/ClassVisibilityReduced.java", "v1/classes/ClassVisibilityReduced.java");

        Assert.assertEquals(1, (int) reporter.getProblemCounters().get(Code.CLASS_VISIBILITY_INCREASED.code()));
    }

    @Test
    public void testClassAdded() throws Exception {
        ProblemOccurrenceReporter reporter = new ProblemOccurrenceReporter();
        runAnalysis(reporter, new String[]{"v1/classes/ClassVisibilityReduced.java"},
            new String[]{"v2/classes/ClassVisibilityReduced.java", "v2/classes/ClassAdded.java"});

        Assert.assertEquals(1, (int) reporter.getProblemCounters().get(Code.CLASS_ADDED.code()));
    }

    @Test
    public void testClassRemoved() throws Exception {
        ProblemOccurrenceReporter reporter = new ProblemOccurrenceReporter();
        runAnalysis(reporter, new String[]{"v1/classes/ClassVisibilityReduced.java", "v2/classes/ClassAdded.java"},
            new String[]{"v1/classes/ClassVisibilityReduced.java"});

        Assert.assertEquals(1, (int) reporter.getProblemCounters().get(Code.CLASS_REMOVED.code()));
    }

    @Test
    public void testNewSuperTypes() throws Exception {
        ProblemOccurrenceReporter reporter = new ProblemOccurrenceReporter();
        runAnalysis(reporter, "v1/classes/NewSuperTypes.java", "v2/classes/NewSuperTypes.java");
        Assert.assertEquals(3,
            (int) reporter.getProblemCounters().get(Code.CLASS_NON_FINAL_CLASS_INHERITS_FROM_NEW_CLASS.code()));
        Assert.assertEquals(1,
            (int) reporter.getProblemCounters().get(Code.CLASS_NOW_CHECKED_EXCEPTION.code()));
    }

    @Test
    public void testRemovedSuperTypes() throws Exception {
        ProblemOccurrenceReporter reporter = new ProblemOccurrenceReporter();
        runAnalysis(reporter, "v2/classes/NewSuperTypes.java", "v1/classes/NewSuperTypes.java");
        Assert
            .assertEquals(3, (int) reporter.getProblemCounters().get(Code.CLASS_NO_LONGER_INHERITS_FROM_CLASS.code()));
    }

    @Test
    public void testChangedSuperTypes() throws Exception {
        ProblemOccurrenceReporter reporter = new ProblemOccurrenceReporter();
        runAnalysis(reporter, "v1/classes/ChangedSuperTypes.java", "v2/classes/ChangedSuperTypes.java");

        Assert
            .assertEquals(2, (int) reporter.getProblemCounters().get(Code.CLASS_NO_LONGER_INHERITS_FROM_CLASS.code()));
        Assert.assertEquals(2,
            (int) reporter.getProblemCounters().get(Code.CLASS_NON_FINAL_CLASS_INHERITS_FROM_NEW_CLASS.code()));
        Assert.assertEquals(1, (int) reporter.getProblemCounters().get(Code.CLASS_NOW_CHECKED_EXCEPTION.code()));
    }

    @Test
    public void testKindChanged() throws Exception {
        ProblemOccurrenceReporter reporter = new ProblemOccurrenceReporter();
        runAnalysis(reporter, "v1/classes/KindChanged.java", "v2/classes/KindChanged.java");

        Assert.assertEquals(4, (int) reporter.getProblemCounters().get(Code.CLASS_KIND_CHANGED.code()));
        Assert.assertEquals(1,
            (int) reporter.getProblemCounters().get(Code.CLASS_NON_FINAL_CLASS_INHERITS_FROM_NEW_CLASS.code()));
        Assert
            .assertEquals(1, (int) reporter.getProblemCounters().get(Code.CLASS_NO_LONGER_INHERITS_FROM_CLASS.code()));
        Assert.assertEquals(3,
            (int) reporter.getProblemCounters().get(Code.CLASS_NO_LONGER_IMPLEMENTS_INTERFACE.code()));
        Assert.assertEquals(1, (int) reporter.getProblemCounters().get(Code.CLASS_NOW_IMPLEMENTS_INTERFACE.code()));
    }

    @Test
    public void testNewImplementedInterfaces() throws Exception {
        ProblemOccurrenceReporter reporter = new ProblemOccurrenceReporter();
        runAnalysis(reporter, "v1/classes/ImplementedInterfaces.java", "v2/classes/ImplementedInterfaces.java");

        Assert
            .assertEquals(1, (int) reporter.getProblemCounters().get(Code.CLASS_NO_LONGER_IMPLEMENTS_INTERFACE.code()));
        Assert.assertEquals(1, (int) reporter.getProblemCounters().get(Code.CLASS_NOW_IMPLEMENTS_INTERFACE.code()));
    }

    @Test
    public void testRemovedImplementedInterfaces() throws Exception {
        ProblemOccurrenceReporter reporter = new ProblemOccurrenceReporter();
        runAnalysis(reporter, "v2/classes/ImplementedInterfaces.java", "v1/classes/ImplementedInterfaces.java");

        Assert
            .assertEquals(1, (int) reporter.getProblemCounters().get(Code.CLASS_NO_LONGER_IMPLEMENTS_INTERFACE.code()));
        Assert.assertEquals(1, (int) reporter.getProblemCounters().get(Code.CLASS_NOW_IMPLEMENTS_INTERFACE.code()));
    }

    @Test
    public void testFinalAdded() throws Exception {
        ProblemOccurrenceReporter reporter = new ProblemOccurrenceReporter();
        runAnalysis(reporter, "v1/classes/Final.java", "v2/classes/Final.java");

        Assert.assertEquals(1, (int) reporter.getProblemCounters().get(Code.CLASS_NOW_FINAL.code()));
    }

    @Test
    public void testFinalRemoved() throws Exception {
        ProblemOccurrenceReporter reporter = new ProblemOccurrenceReporter();
        runAnalysis(reporter, "v2/classes/Final.java", "v1/classes/Final.java");

        Assert.assertEquals(1, (int) reporter.getProblemCounters().get(Code.CLASS_NO_LONGER_FINAL.code()));
    }


    @Test
    public void testAbstractAdded() throws Exception {
        ProblemOccurrenceReporter reporter = new ProblemOccurrenceReporter();
        runAnalysis(reporter, "v1/classes/Abstract.java", "v2/classes/Abstract.java");

        Assert.assertEquals(1, (int) reporter.getProblemCounters().get(Code.CLASS_NOW_ABSTRACT.code()));
    }

    @Test
    public void testAbstractRemoved() throws Exception {
        ProblemOccurrenceReporter reporter = new ProblemOccurrenceReporter();
        runAnalysis(reporter, "v2/classes/Abstract.java", "v1/classes/Abstract.java");

        Assert.assertEquals(1, (int) reporter.getProblemCounters().get(Code.CLASS_NO_LONGER_ABSTRACT.code()));
    }

    @Test
    public void testFormalTypeParametersChanged() throws Exception {
        ProblemOccurrenceReporter reporter = new ProblemOccurrenceReporter();
        runAnalysis(reporter, "v1/classes/TypeParams.java", "v2/classes/TypeParams.java");

        Assert.assertEquals(2,
            (int) reporter.getProblemCounters().get(Code.GENERICS_FORMAL_TYPE_PARAMETER_CHANGED.code()));
        Assert
            .assertEquals(1, (int) reporter.getProblemCounters().get(Code.GENERICS_FORMAL_TYPE_PARAMETER_ADDED.code()));
        Assert.assertEquals(1, (int) reporter.getProblemCounters().get(
            Code.GENERICS_FORMAL_TYPE_PARAMETER_REMOVED.code()));
        Assert.assertEquals(1,
            (int) reporter.getProblemCounters().get(Code.CLASS_SUPER_TYPE_TYPE_PARAMETERS_CHANGED.code()));
    }

    @Test
    public void testPublicInNonPublicNotInApi() throws Exception {
        ProblemOccurrenceReporter reporter = new ProblemOccurrenceReporter();
        runAnalysis(reporter, "v1/classes/NonPublic.java", "v2/classes/NonPublic.java");

        Assert.assertNull(reporter.getProblemCounters().get(Code.CLASS_NON_PUBLIC_PART_OF_API.code()));
    }
}