83 lines
		
	
	
		
			2.7 KiB
		
	
	
	
		
			Java
		
	
	
	
			
		
		
	
	
			83 lines
		
	
	
		
			2.7 KiB
		
	
	
	
		
			Java
		
	
	
	
| /*
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|  * Copyright (C) 2021 The Android Open Source Project
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|  *
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|  * Licensed under the Apache License, Version 2.0 (the "License");
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|  * you may not use this file except in compliance with the License.
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|  * You may obtain a copy of the License at
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|  *
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|  *      http://www.apache.org/licenses/LICENSE-2.0
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|  *
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|  * Unless required by applicable law or agreed to in writing, software
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|  * distributed under the License is distributed on an "AS IS" BASIS,
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|  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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|  * See the License for the specific language governing permissions and
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|  * limitations under the License.
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|  */
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| 
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| public class TestCase {
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| 
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|   public static void test() {
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|     testPublicSdk();
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|     testUnsupportedAppUsage();
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|   }
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| 
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|   public static void testPublicSdk() {
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|     // This call should be successful as the method is accessible through the interface.
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|     int value = new InheritAbstract().methodPublicSdkNotInAbstractParent();
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|     if (value != 42) {
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|       throw new Error("Expected 42, got " + value);
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|     }
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|   }
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| 
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|   public static void testUnsupportedAppUsage() {
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|     // This call should throw an exception as the only accessible method is unsupportedappusage.
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|     try {
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|       new InheritAbstract().methodUnsupportedNotInAbstractParent();
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|       throw new Error("Expected NoSuchMethodError");
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|     } catch (NoSuchMethodError e) {
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|       // Expected.
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|     }
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|   }
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| 
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|   public static void testNative(String library) {
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|     System.load(library);
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|     int value = testNativeInternal();
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|     if (value != 42) {
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|       throw new Error("Expected 42, got " + value);
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|     }
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| 
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|     // Test that we consistently return we cannot access a hidden method.
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| 
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|     // Dedupe hidden api warnings to trigger the optimization described below.
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|     dedupeHiddenApiWarnings();
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|     assertFalse(testAccessInternal(
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|         InheritAbstract.class, "methodUnsupportedNotInAbstractParent", "()I"));
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|     // Access the accessible method through reflection. This will do an optimization pretending the
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|     // method is public API.
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|     try {
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|       NotInAbstractInterface.class.getDeclaredMethod("methodUnsupportedNotInAbstractParent").
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|           invoke(new InheritAbstract());
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|     } catch (Exception e) {
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|       throw new Error(e);
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|     }
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|     assertFalse(testAccessInternal(
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|         InheritAbstract.class, "methodUnsupportedNotInAbstractParent", "()I"));
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|   }
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| 
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|   public static void assertTrue(boolean value) {
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|     if (!value) {
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|       throw new Error("Expected true value");
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|     }
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|   }
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| 
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|   public static void assertFalse(boolean value) {
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|     if (value) {
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|       throw new Error("Expected false value");
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|     }
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|   }
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| 
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|   public static native int testNativeInternal();
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|   public static native void dedupeHiddenApiWarnings();
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|   public static native boolean testAccessInternal(Class<?> cls, String method, String signature);
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| }
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