1 /* 2 * Copyright (C) 2016 The Android Open Source Project 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 dalvik.system; 18 19 import junit.framework.TestCase; 20 21 import java.lang.invoke.MethodType; 22 23 public class EmulatedStackFrameTest extends TestCase { 24 25 public void testReaderWriter_allParamTypes() { 26 EmulatedStackFrame stackFrame = EmulatedStackFrame.create(MethodType.methodType( 27 void.class, 28 new Class<?>[] { boolean.class, char.class, short.class, int.class, long.class, 29 float.class, double.class, String.class })); 30 31 EmulatedStackFrame.StackFrameWriter writer = new EmulatedStackFrame.StackFrameWriter(); 32 writer.attach(stackFrame); 33 34 writer.putNextBoolean(true); 35 writer.putNextChar('a'); 36 writer.putNextShort((short) 42); 37 writer.putNextInt(43); 38 writer.putNextLong(56); 39 writer.putNextFloat(42.0f); 40 writer.putNextDouble(52.0); 41 writer.putNextReference("foo", String.class); 42 43 EmulatedStackFrame.StackFrameReader reader = new EmulatedStackFrame.StackFrameReader(); 44 reader.attach(stackFrame); 45 46 assertTrue(reader.nextBoolean()); 47 assertEquals('a', reader.nextChar()); 48 assertEquals((short) 42, reader.nextShort()); 49 assertEquals(43, reader.nextInt()); 50 assertEquals(56, reader.nextLong()); 51 assertEquals(42.0f, reader.nextFloat()); 52 assertEquals(52.0, reader.nextDouble()); 53 assertEquals("foo", reader.nextReference(String.class)); 54 } 55 56 public void testReaderWriter_allReturnTypes() { 57 EmulatedStackFrame stackFrame = EmulatedStackFrame.create( 58 MethodType.methodType(boolean.class)); 59 60 EmulatedStackFrame.StackFrameWriter writer = new EmulatedStackFrame.StackFrameWriter(); 61 writer.attach(stackFrame).makeReturnValueAccessor(); 62 63 EmulatedStackFrame.StackFrameReader reader = new EmulatedStackFrame.StackFrameReader(); 64 reader.attach(stackFrame).makeReturnValueAccessor(); 65 66 writer.putNextBoolean(true); 67 assertTrue(reader.nextBoolean()); 68 69 stackFrame = EmulatedStackFrame.create(MethodType.methodType(char.class)); 70 writer.attach(stackFrame).makeReturnValueAccessor(); 71 reader.attach(stackFrame).makeReturnValueAccessor(); 72 73 writer.putNextChar('a'); 74 assertEquals('a', reader.nextChar()); 75 76 stackFrame = EmulatedStackFrame.create(MethodType.methodType(short.class)); 77 writer.attach(stackFrame).makeReturnValueAccessor(); 78 reader.attach(stackFrame).makeReturnValueAccessor(); 79 80 writer.putNextShort((short) 52); 81 assertEquals((short) 52, reader.nextShort()); 82 83 stackFrame = EmulatedStackFrame.create(MethodType.methodType(int.class)); 84 writer.attach(stackFrame).makeReturnValueAccessor(); 85 reader.attach(stackFrame).makeReturnValueAccessor(); 86 writer.putNextInt(64); 87 assertEquals(64, reader.nextInt()); 88 89 stackFrame = EmulatedStackFrame.create(MethodType.methodType(long.class)); 90 writer.attach(stackFrame).makeReturnValueAccessor(); 91 reader.attach(stackFrame).makeReturnValueAccessor(); 92 writer.putNextLong(72); 93 assertEquals(72, reader.nextLong()); 94 95 stackFrame = EmulatedStackFrame.create(MethodType.methodType(float.class)); 96 writer.attach(stackFrame).makeReturnValueAccessor(); 97 reader.attach(stackFrame).makeReturnValueAccessor(); 98 writer.putNextFloat(52.0f); 99 assertEquals(52.0f, reader.nextFloat()); 100 101 stackFrame = EmulatedStackFrame.create(MethodType.methodType(double.class)); 102 writer.attach(stackFrame).makeReturnValueAccessor(); 103 reader.attach(stackFrame).makeReturnValueAccessor(); 104 writer.putNextDouble(73.0); 105 assertEquals(73.0, reader.nextDouble()); 106 107 stackFrame = EmulatedStackFrame.create(MethodType.methodType(String.class)); 108 writer.attach(stackFrame).makeReturnValueAccessor(); 109 reader.attach(stackFrame).makeReturnValueAccessor(); 110 writer.putNextReference("foo", String.class); 111 assertEquals("foo", reader.nextReference(String.class)); 112 } 113 114 public void testReaderWriter_wrongTypes() { 115 EmulatedStackFrame stackFrame = EmulatedStackFrame.create( 116 MethodType.methodType(boolean.class, String.class)); 117 118 EmulatedStackFrame.StackFrameReader reader = new EmulatedStackFrame.StackFrameReader(); 119 reader.attach(stackFrame); 120 121 try { 122 reader.nextInt(); 123 fail(); 124 } catch (IllegalArgumentException expected) { 125 } 126 127 try { 128 reader.nextDouble(); 129 fail(); 130 } catch (IllegalArgumentException expected) { 131 } 132 133 assertNull(reader.nextReference(String.class)); 134 135 try { 136 reader.nextDouble(); 137 fail(); 138 } catch (IllegalArgumentException expected) { 139 } 140 141 EmulatedStackFrame.StackFrameWriter writer = new EmulatedStackFrame.StackFrameWriter(); 142 writer.attach(stackFrame); 143 144 try { 145 writer.putNextInt(0); 146 fail(); 147 } catch (IllegalArgumentException expected) { 148 } 149 150 try { 151 writer.putNextDouble(0); 152 fail(); 153 } catch (IllegalArgumentException expected) { 154 } 155 156 writer.putNextReference(null, String.class); 157 158 try { 159 writer.putNextDouble(0); 160 fail(); 161 } catch (IllegalArgumentException expected) { 162 } 163 } 164 165 public void testReturnValueReaderWriter_wrongTypes() { 166 EmulatedStackFrame stackFrame = EmulatedStackFrame.create( 167 MethodType.methodType(boolean.class, String.class)); 168 169 EmulatedStackFrame.StackFrameReader reader = new EmulatedStackFrame.StackFrameReader(); 170 reader.attach(stackFrame); 171 reader.makeReturnValueAccessor(); 172 173 try { 174 reader.nextInt(); 175 fail(); 176 } catch (IllegalArgumentException expected) { 177 } 178 179 // Should succeeed. 180 assertFalse(reader.nextBoolean()); 181 182 // The next attempt should fail. 183 try { 184 reader.nextBoolean(); 185 fail(); 186 } catch (IllegalArgumentException expected) { 187 } 188 189 EmulatedStackFrame.StackFrameWriter writer = new EmulatedStackFrame.StackFrameWriter(); 190 writer.attach(stackFrame); 191 writer.makeReturnValueAccessor(); 192 193 try { 194 writer.putNextInt(0); 195 fail(); 196 } catch (IllegalArgumentException expected) { 197 } 198 199 // Should succeeed. 200 writer.putNextBoolean(true); 201 202 // The next attempt should fail. 203 try { 204 writer.putNextBoolean(false); 205 fail(); 206 } catch (IllegalArgumentException expected) { 207 } 208 } 209 } 210
