1 files changed, 93 insertions, 0 deletions
diff --git a/test-runner/tests/src/android/test/suitebuilder/TestPredicatesTest.java b/test-runner/tests/src/android/test/suitebuilder/TestPredicatesTest.java
new file mode 100644
index 000000000000..3d8d5f1dc071
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+++ b/test-runner/tests/src/android/test/suitebuilder/TestPredicatesTest.java
@@ -0,0 +1,93 @@
+/*
+ * Copyright (C) 2008 The Android Open Source Project
+ *
+ * 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 android.test.suitebuilder;
+
+import com.android.internal.util.Predicate;
+import junit.framework.TestCase;
+
+import java.lang.annotation.ElementType;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.lang.annotation.Target;
+import java.lang.reflect.Method;
+
+public class TestPredicatesTest extends TestCase {
+
+    public void testThatMethodWithAnnotationIsReportedAsBeingAnnotated() throws Exception {
+        assertTrue(hasExampleAnnotation(ClassWithAnnotation.class, "testWithAnnotation"));
+        assertTrue(hasExampleAnnotation(ClassWithoutAnnotation.class, "testWithAnnotation"));
+    }
+
+    public void testThatMethodWithOutAnnotationIsNotReportedAsBeingAnnotated() throws Exception {
+        assertFalse(hasExampleAnnotation(ClassWithoutAnnotation.class, "testWithoutAnnotation"));
+    }
+
+    public void testThatClassAnnotatioCausesAllMethodsToBeReportedAsBeingAnnotated()
+            throws Exception {
+        assertTrue(hasExampleAnnotation(ClassWithAnnotation.class, "testWithoutAnnotation"));
+    }
+
+    private boolean hasExampleAnnotation(Class<? extends TestCase> aClass, String methodName)
+            throws NoSuchMethodException {
+        Method method = aClass.getMethod(methodName);
+        TestMethod testMethod = new TestMethod(method, aClass);
+        return TestPredicates.hasAnnotation(Example.class).apply(testMethod);
+    }
+
+    @Retention(RetentionPolicy.RUNTIME)
+    @Target({ElementType.TYPE, ElementType.METHOD})
+    public @interface Example {
+    }
+
+    @Example
+    static class ClassWithAnnotation extends TestCase {
+
+        @Example
+        public void testWithAnnotation() {
+        }
+
+        public void testWithoutAnnotation() {
+        }
+    }
+
+    static class ClassWithoutAnnotation extends TestCase {
+
+        @Example
+        public void testWithAnnotation() {
+        }
+
+        public void testWithoutAnnotation() {
+        }
+    }
+
+    private static final Predicate<Object> TRUE = new Predicate<Object>() {
+        public boolean apply(Object o) {
+            return true;
+        }
+    };
+
+    private static final Predicate<Object> FALSE = new Predicate<Object>() {
+        public boolean apply(Object o) {
+            return false;
+        }
+    };
+
+    public void testNotPredicate() throws Exception {
+        assertTrue(TestPredicates.not(FALSE).apply(null));
+        assertFalse(TestPredicates.not(TRUE).apply(null));
+    }
+}