1 /* 2 * Copyright (C) 2015 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 com.android.ahat; 18 19 import com.android.tools.perflib.heap.Instance; 20 import java.io.IOException; 21 import static org.junit.Assert.assertEquals; 22 import static org.junit.Assert.assertNotNull; 23 import static org.junit.Assert.assertNull; 24 import org.junit.Test; 25 26 public class InstanceUtilsTest { 27 @Test asStringBasic()28 public void asStringBasic() throws IOException { 29 TestDump dump = TestDump.getTestDump(); 30 Instance str = (Instance)dump.getDumpedThing("basicString"); 31 assertEquals("hello, world", InstanceUtils.asString(str)); 32 } 33 34 @Test asStringCharArray()35 public void asStringCharArray() throws IOException { 36 TestDump dump = TestDump.getTestDump(); 37 Instance str = (Instance)dump.getDumpedThing("charArray"); 38 assertEquals("char thing", InstanceUtils.asString(str)); 39 } 40 41 @Test asStringTruncated()42 public void asStringTruncated() throws IOException { 43 TestDump dump = TestDump.getTestDump(); 44 Instance str = (Instance)dump.getDumpedThing("basicString"); 45 assertEquals("hello", InstanceUtils.asString(str, 5)); 46 } 47 48 @Test asStringCharArrayTruncated()49 public void asStringCharArrayTruncated() throws IOException { 50 TestDump dump = TestDump.getTestDump(); 51 Instance str = (Instance)dump.getDumpedThing("charArray"); 52 assertEquals("char ", InstanceUtils.asString(str, 5)); 53 } 54 55 @Test asStringExactMax()56 public void asStringExactMax() throws IOException { 57 TestDump dump = TestDump.getTestDump(); 58 Instance str = (Instance)dump.getDumpedThing("basicString"); 59 assertEquals("hello, world", InstanceUtils.asString(str, 12)); 60 } 61 62 @Test asStringCharArrayExactMax()63 public void asStringCharArrayExactMax() throws IOException { 64 TestDump dump = TestDump.getTestDump(); 65 Instance str = (Instance)dump.getDumpedThing("charArray"); 66 assertEquals("char thing", InstanceUtils.asString(str, 10)); 67 } 68 69 @Test asStringNotTruncated()70 public void asStringNotTruncated() throws IOException { 71 TestDump dump = TestDump.getTestDump(); 72 Instance str = (Instance)dump.getDumpedThing("basicString"); 73 assertEquals("hello, world", InstanceUtils.asString(str, 50)); 74 } 75 76 @Test asStringCharArrayNotTruncated()77 public void asStringCharArrayNotTruncated() throws IOException { 78 TestDump dump = TestDump.getTestDump(); 79 Instance str = (Instance)dump.getDumpedThing("charArray"); 80 assertEquals("char thing", InstanceUtils.asString(str, 50)); 81 } 82 83 @Test asStringNegativeMax()84 public void asStringNegativeMax() throws IOException { 85 TestDump dump = TestDump.getTestDump(); 86 Instance str = (Instance)dump.getDumpedThing("basicString"); 87 assertEquals("hello, world", InstanceUtils.asString(str, -3)); 88 } 89 90 @Test asStringCharArrayNegativeMax()91 public void asStringCharArrayNegativeMax() throws IOException { 92 TestDump dump = TestDump.getTestDump(); 93 Instance str = (Instance)dump.getDumpedThing("charArray"); 94 assertEquals("char thing", InstanceUtils.asString(str, -3)); 95 } 96 97 @Test asStringNull()98 public void asStringNull() throws IOException { 99 TestDump dump = TestDump.getTestDump(); 100 Instance obj = (Instance)dump.getDumpedThing("nullString"); 101 assertNull(InstanceUtils.asString(obj)); 102 } 103 104 @Test asStringNotString()105 public void asStringNotString() throws IOException { 106 TestDump dump = TestDump.getTestDump(); 107 Instance obj = (Instance)dump.getDumpedThing("anObject"); 108 assertNotNull(obj); 109 assertNull(InstanceUtils.asString(obj)); 110 } 111 112 @Test basicReference()113 public void basicReference() throws IOException { 114 TestDump dump = TestDump.getTestDump(); 115 116 Instance pref = (Instance)dump.getDumpedThing("aPhantomReference"); 117 Instance wref = (Instance)dump.getDumpedThing("aWeakReference"); 118 Instance referent = (Instance)dump.getDumpedThing("anObject"); 119 assertNotNull(pref); 120 assertNotNull(wref); 121 assertNotNull(referent); 122 assertEquals(referent, InstanceUtils.getReferent(pref)); 123 assertEquals(referent, InstanceUtils.getReferent(wref)); 124 assertNull(InstanceUtils.getReferent(referent)); 125 } 126 } 127