1 /* 2 * Copyright (C) 2011 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 #include "reference_table.h" 18 19 #include "common_runtime_test.h" 20 #include "mirror/array-inl.h" 21 #include "mirror/string.h" 22 #include "scoped_thread_state_change.h" 23 #include "thread-inl.h" 24 25 namespace art { 26 27 class ReferenceTableTest : public CommonRuntimeTest {}; 28 29 TEST_F(ReferenceTableTest, Basics) { 30 ScopedObjectAccess soa(Thread::Current()); 31 mirror::Object* o1 = mirror::String::AllocFromModifiedUtf8(soa.Self(), "hello"); 32 33 ReferenceTable rt("test", 0, 11); 34 35 // Check dumping the empty table. 36 { 37 std::ostringstream oss; 38 rt.Dump(oss); 39 EXPECT_NE(oss.str().find("(empty)"), std::string::npos) << oss.str(); 40 EXPECT_EQ(0U, rt.Size()); 41 } 42 43 // Check removal of all NULLs in a empty table is a no-op. 44 rt.Remove(NULL); 45 EXPECT_EQ(0U, rt.Size()); 46 47 // Check removal of all o1 in a empty table is a no-op. 48 rt.Remove(o1); 49 EXPECT_EQ(0U, rt.Size()); 50 51 // Add o1 and check we have 1 element and can dump. 52 { 53 rt.Add(o1); 54 EXPECT_EQ(1U, rt.Size()); 55 std::ostringstream oss; 56 rt.Dump(oss); 57 EXPECT_NE(oss.str().find("1 of java.lang.String"), std::string::npos) << oss.str(); 58 EXPECT_EQ(oss.str().find("short[]"), std::string::npos) << oss.str(); 59 } 60 61 // Add a second object 10 times and check dumping is sane. 62 mirror::Object* o2 = mirror::ShortArray::Alloc(soa.Self(), 0); 63 for (size_t i = 0; i < 10; ++i) { 64 rt.Add(o2); 65 EXPECT_EQ(i + 2, rt.Size()); 66 std::ostringstream oss; 67 rt.Dump(oss); 68 EXPECT_NE(oss.str().find(StringPrintf("Last %zd entries (of %zd):", 69 i + 2 > 10 ? 10 : i + 2, 70 i + 2)), 71 std::string::npos) << oss.str(); 72 EXPECT_NE(oss.str().find("1 of java.lang.String"), std::string::npos) << oss.str(); 73 if (i == 0) { 74 EXPECT_NE(oss.str().find("1 of short[]"), std::string::npos) << oss.str(); 75 } else { 76 EXPECT_NE(oss.str().find(StringPrintf("%zd of short[] (1 unique instances)", i + 1)), 77 std::string::npos) << oss.str(); 78 } 79 } 80 81 // Remove o1 (first element). 82 { 83 rt.Remove(o1); 84 EXPECT_EQ(10U, rt.Size()); 85 std::ostringstream oss; 86 rt.Dump(oss); 87 EXPECT_EQ(oss.str().find("java.lang.String"), std::string::npos) << oss.str(); 88 } 89 90 // Remove o2 ten times. 91 for (size_t i = 0; i < 10; ++i) { 92 rt.Remove(o2); 93 EXPECT_EQ(9 - i, rt.Size()); 94 std::ostringstream oss; 95 rt.Dump(oss); 96 if (i == 9) { 97 EXPECT_EQ(oss.str().find("short[]"), std::string::npos) << oss.str(); 98 } else if (i == 8) { 99 EXPECT_NE(oss.str().find("1 of short[]"), std::string::npos) << oss.str(); 100 } else { 101 EXPECT_NE(oss.str().find(StringPrintf("%zd of short[] (1 unique instances)", 10 - i - 1)), 102 std::string::npos) << oss.str(); 103 } 104 } 105 } 106 107 } // namespace art 108
