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      1 /*
      2  * Copyright (C) 2012 The Guava Authors
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  * http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 package com.google.common.testing;
     18 
     19 import static com.google.common.truth.Truth.assertThat;
     20 
     21 import com.google.common.base.Predicates;
     22 import com.google.common.collect.ImmutableList;
     23 
     24 import junit.framework.TestCase;
     25 
     26 import java.util.Arrays;
     27 import java.util.List;
     28 
     29 /**
     30  * Unit tests for {@link AbstractPackageSanityTests}.
     31  *
     32  * @author Ben Yu
     33  */
     34 public class AbstractPackageSanityTestsTest extends TestCase {
     35 
     36   private final AbstractPackageSanityTests sanityTests = new AbstractPackageSanityTests() {};
     37 
     38   public void testFindClassesToTest_testClass() {
     39     assertThat(findClassesToTest(ImmutableList.of(EmptyTest.class)))
     40         .isEmpty();
     41     assertThat(findClassesToTest(ImmutableList.of(EmptyTests.class)))
     42         .isEmpty();
     43     assertThat(findClassesToTest(ImmutableList.of(EmptyTestCase.class)))
     44         .isEmpty();
     45     assertThat(findClassesToTest(ImmutableList.of(EmptyTestSuite.class)))
     46         .isEmpty();
     47   }
     48 
     49   public void testFindClassesToTest_noCorrespondingTestClass() {
     50     assertThat(findClassesToTest(ImmutableList.of(Foo.class)))
     51         .has().exactly(Foo.class).inOrder();
     52     assertThat(findClassesToTest(ImmutableList.of(Foo.class, Foo2Test.class)))
     53         .has().exactly(Foo.class).inOrder();
     54   }
     55 
     56   public void testFindClassesToTest_publicApiOnly() {
     57     sanityTests.publicApiOnly();
     58     assertThat(findClassesToTest(ImmutableList.of(Foo.class)))
     59         .isEmpty();
     60     assertThat(findClassesToTest(ImmutableList.of(PublicFoo.class))).has().item(PublicFoo.class);
     61   }
     62 
     63   public void testFindClassesToTest_ignoreClasses() {
     64     sanityTests.ignoreClasses(Predicates.<Object>equalTo(PublicFoo.class));
     65     assertThat(findClassesToTest(ImmutableList.of(PublicFoo.class)))
     66         .isEmpty();
     67     assertThat(findClassesToTest(ImmutableList.of(Foo.class))).has().item(Foo.class);
     68   }
     69 
     70   public void testFindClassesToTest_withCorrespondingTestClassButNotExplicitlyTested() {
     71     assertThat(findClassesToTest(ImmutableList.of(Foo.class, FooTest.class), "testNotThere"))
     72         .has().exactly(Foo.class).inOrder();
     73     assertThat(findClassesToTest(ImmutableList.of(Foo.class, FooTest.class), "testNotPublic"))
     74         .has().exactly(Foo.class).inOrder();
     75   }
     76 
     77   public void testFindClassesToTest_withCorrespondingTestClassAndExplicitlyTested() {
     78     ImmutableList<Class<? extends Object>> classes = ImmutableList.of(Foo.class, FooTest.class);
     79     assertThat(findClassesToTest(classes, "testPublic"))
     80         .isEmpty();
     81     assertThat(findClassesToTest(classes, "testNotThere", "testPublic"))
     82         .isEmpty();
     83   }
     84 
     85   public void testFindClassesToTest_withCorrespondingTestClass_noTestName() {
     86     assertThat(findClassesToTest(ImmutableList.of(Foo.class, FooTest.class)))
     87         .has().exactly(Foo.class).inOrder();
     88   }
     89 
     90   static class EmptyTestCase {}
     91 
     92   static class EmptyTest {}
     93 
     94   static class EmptyTests {}
     95 
     96   static class EmptyTestSuite {}
     97 
     98   static class Foo {}
     99 
    100   public static class PublicFoo {}
    101 
    102   static class FooTest {
    103     @SuppressWarnings("unused") // accessed reflectively
    104     public void testPublic() {}
    105     @SuppressWarnings("unused") // accessed reflectively
    106     void testNotPublic() {}
    107   }
    108 
    109   // Shouldn't be mistaken as Foo's test
    110   static class Foo2Test {
    111     @SuppressWarnings("unused") // accessed reflectively
    112     public void testPublic() {}
    113   }
    114 
    115   private List<Class<?>> findClassesToTest(
    116       Iterable<? extends Class<?>> classes, String... explicitTestNames) {
    117     return sanityTests.findClassesToTest(classes, Arrays.asList(explicitTestNames));
    118   }
    119 }
    120