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Side by Side Diff: mojo/public/tests/bindings/buffer_unittest.cc

Issue 134253004: Mojo: AsyncWaiter and mojo/public/environment (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src
Patch Set: add missing files Created 6 years, 11 months ago
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1 // Copyright 2013 The Chromium Authors. All rights reserved. 1 // Copyright 2013 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be 2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file. 3 // found in the LICENSE file.
4 4
5 #include "mojo/public/bindings/lib/bindings_serialization.h" 5 #include "mojo/public/bindings/lib/bindings_serialization.h"
6 #include "mojo/public/bindings/lib/buffer.h" 6 #include "mojo/public/bindings/lib/buffer.h"
7 #include "mojo/public/tests/bindings/simple_bindings_support.h" 7 #include "mojo/public/environment/environment.h"
8 #include "testing/gtest/include/gtest/gtest.h" 8 #include "testing/gtest/include/gtest/gtest.h"
9 9
10 namespace mojo { 10 namespace mojo {
11 namespace test { 11 namespace test {
12 12
13 bool IsZero(void* p_buf, size_t size) { 13 bool IsZero(void* p_buf, size_t size) {
14 char* buf = reinterpret_cast<char*>(p_buf); 14 char* buf = reinterpret_cast<char*>(p_buf);
15 for (size_t i = 0; i < size; ++i) { 15 for (size_t i = 0; i < size; ++i) {
16 if (buf[i] != 0) 16 if (buf[i] != 0)
17 return false; 17 return false;
18 } 18 }
19 return true; 19 return true;
20 } 20 }
21 21
22 // Tests small and large allocations in ScratchBuffer. 22 // Tests small and large allocations in ScratchBuffer.
23 TEST(ScratchBufferTest, Basic) { 23 TEST(ScratchBufferTest, Basic) {
24 SimpleBindingsSupport bindings_support; 24 Environment env;
25 25
26 // Test that a small allocation is placed on the stack. 26 // Test that a small allocation is placed on the stack.
27 internal::ScratchBuffer buf; 27 internal::ScratchBuffer buf;
28 void* small = buf.Allocate(10); 28 void* small = buf.Allocate(10);
29 EXPECT_TRUE(small >= &buf && small < (&buf + sizeof(buf))); 29 EXPECT_TRUE(small >= &buf && small < (&buf + sizeof(buf)));
30 EXPECT_TRUE(IsZero(small, 10)); 30 EXPECT_TRUE(IsZero(small, 10));
31 31
32 // Large allocations won't be on the stack. 32 // Large allocations won't be on the stack.
33 void* large = buf.Allocate(100*1024); 33 void* large = buf.Allocate(100*1024);
34 EXPECT_TRUE(IsZero(large, 100*1024)); 34 EXPECT_TRUE(IsZero(large, 100*1024));
35 EXPECT_FALSE(large >= &buf && large < (&buf + sizeof(buf))); 35 EXPECT_FALSE(large >= &buf && large < (&buf + sizeof(buf)));
36 36
37 // But another small allocation should be back on the stack. 37 // But another small allocation should be back on the stack.
38 small = buf.Allocate(10); 38 small = buf.Allocate(10);
39 EXPECT_TRUE(IsZero(small, 10)); 39 EXPECT_TRUE(IsZero(small, 10));
40 EXPECT_TRUE(small >= &buf && small < (&buf + sizeof(buf))); 40 EXPECT_TRUE(small >= &buf && small < (&buf + sizeof(buf)));
41 } 41 }
42 42
43 // Tests that Buffer::current() returns the correct value. 43 // Tests that Buffer::current() returns the correct value.
44 TEST(ScratchBufferTest, Stacked) { 44 TEST(ScratchBufferTest, Stacked) {
45 SimpleBindingsSupport bindings_support; 45 Environment env;
46 46
47 EXPECT_FALSE(Buffer::current()); 47 EXPECT_FALSE(Buffer::current());
48 48
49 { 49 {
50 internal::ScratchBuffer a; 50 internal::ScratchBuffer a;
51 EXPECT_EQ(&a, Buffer::current()); 51 EXPECT_EQ(&a, Buffer::current());
52 52
53 { 53 {
54 internal::ScratchBuffer b; 54 internal::ScratchBuffer b;
55 EXPECT_EQ(&b, Buffer::current()); 55 EXPECT_EQ(&b, Buffer::current());
56 } 56 }
57 } 57 }
58 58
59 EXPECT_FALSE(Buffer::current()); 59 EXPECT_FALSE(Buffer::current());
60 } 60 }
61 61
62 // Tests that FixedBuffer allocates memory aligned to 8 byte boundaries. 62 // Tests that FixedBuffer allocates memory aligned to 8 byte boundaries.
63 TEST(FixedBufferTest, Alignment) { 63 TEST(FixedBufferTest, Alignment) {
64 SimpleBindingsSupport bindings_support; 64 Environment env;
65 65
66 internal::FixedBuffer buf(internal::Align(10) * 2); 66 internal::FixedBuffer buf(internal::Align(10) * 2);
67 ASSERT_EQ(buf.size(), 16u * 2); 67 ASSERT_EQ(buf.size(), 16u * 2);
68 68
69 void* a = buf.Allocate(10); 69 void* a = buf.Allocate(10);
70 ASSERT_TRUE(a); 70 ASSERT_TRUE(a);
71 EXPECT_TRUE(IsZero(a, 10)); 71 EXPECT_TRUE(IsZero(a, 10));
72 EXPECT_EQ(0, reinterpret_cast<ptrdiff_t>(a) % 8); 72 EXPECT_EQ(0, reinterpret_cast<ptrdiff_t>(a) % 8);
73 73
74 void* b = buf.Allocate(10); 74 void* b = buf.Allocate(10);
75 ASSERT_TRUE(b); 75 ASSERT_TRUE(b);
76 EXPECT_TRUE(IsZero(b, 10)); 76 EXPECT_TRUE(IsZero(b, 10));
77 EXPECT_EQ(0, reinterpret_cast<ptrdiff_t>(b) % 8); 77 EXPECT_EQ(0, reinterpret_cast<ptrdiff_t>(b) % 8);
78 78
79 // Any more allocations would result in an assert, but we can't test that. 79 // Any more allocations would result in an assert, but we can't test that.
80 } 80 }
81 81
82 // Tests that FixedBuffer::Leak passes ownership to the caller. 82 // Tests that FixedBuffer::Leak passes ownership to the caller.
83 TEST(FixedBufferTest, Leak) { 83 TEST(FixedBufferTest, Leak) {
84 SimpleBindingsSupport bindings_support; 84 Environment env;
85 85
86 void* ptr = NULL; 86 void* ptr = NULL;
87 void* buf_ptr = NULL; 87 void* buf_ptr = NULL;
88 { 88 {
89 internal::FixedBuffer buf(8); 89 internal::FixedBuffer buf(8);
90 ASSERT_EQ(8u, buf.size()); 90 ASSERT_EQ(8u, buf.size());
91 91
92 ptr = buf.Allocate(8); 92 ptr = buf.Allocate(8);
93 ASSERT_TRUE(ptr); 93 ASSERT_TRUE(ptr);
94 void* buf_ptr = buf.Leak(); 94 void* buf_ptr = buf.Leak();
95 95
96 // The buffer should point to the first element allocated. 96 // The buffer should point to the first element allocated.
97 // TODO(mpcomplete): Is this a reasonable expectation? 97 // TODO(mpcomplete): Is this a reasonable expectation?
98 EXPECT_EQ(ptr, buf_ptr); 98 EXPECT_EQ(ptr, buf_ptr);
99 99
100 // The FixedBuffer should be empty now. 100 // The FixedBuffer should be empty now.
101 EXPECT_EQ(0u, buf.size()); 101 EXPECT_EQ(0u, buf.size());
102 EXPECT_FALSE(buf.Leak()); 102 EXPECT_FALSE(buf.Leak());
103 } 103 }
104 104
105 // Since we called Leak, ptr is still writable after FixedBuffer went out of 105 // Since we called Leak, ptr is still writable after FixedBuffer went out of
106 // scope. 106 // scope.
107 memset(ptr, 1, 8); 107 memset(ptr, 1, 8);
108 free(buf_ptr); 108 free(buf_ptr);
109 } 109 }
110 110
111 } // namespace test 111 } // namespace test
112 } // namespace mojo 112 } // namespace mojo
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