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