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1 // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file | 1 // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file |
2 // for details. All rights reserved. Use of this source code is governed by a | 2 // for details. All rights reserved. Use of this source code is governed by a |
3 // BSD-style license that can be found in the LICENSE file. | 3 // BSD-style license that can be found in the LICENSE file. |
4 | 4 |
| 5 #include "vm/memory_region.h" |
5 #include "platform/assert.h" | 6 #include "platform/assert.h" |
6 #include "vm/memory_region.h" | |
7 #include "vm/unit_test.h" | 7 #include "vm/unit_test.h" |
8 | 8 |
9 namespace dart { | 9 namespace dart { |
10 | 10 |
11 static void* NewRegion(uword size) { | 11 static void* NewRegion(uword size) { |
12 void* pointer = new uint8_t[size]; | 12 void* pointer = new uint8_t[size]; |
13 return pointer; | 13 return pointer; |
14 } | 14 } |
15 | 15 |
16 | |
17 static void DeleteRegion(const MemoryRegion& region) { | 16 static void DeleteRegion(const MemoryRegion& region) { |
18 delete[] reinterpret_cast<uint8_t*>(region.pointer()); | 17 delete[] reinterpret_cast<uint8_t*>(region.pointer()); |
19 } | 18 } |
20 | 19 |
21 | |
22 VM_UNIT_TEST_CASE(NullRegion) { | 20 VM_UNIT_TEST_CASE(NullRegion) { |
23 static const uword kSize = 512; | 21 static const uword kSize = 512; |
24 MemoryRegion region(NULL, kSize); | 22 MemoryRegion region(NULL, kSize); |
25 EXPECT(region.pointer() == NULL); | 23 EXPECT(region.pointer() == NULL); |
26 EXPECT_EQ(kSize, region.size()); | 24 EXPECT_EQ(kSize, region.size()); |
27 } | 25 } |
28 | 26 |
29 | |
30 VM_UNIT_TEST_CASE(NewRegion) { | 27 VM_UNIT_TEST_CASE(NewRegion) { |
31 static const uword kSize = 1024; | 28 static const uword kSize = 1024; |
32 MemoryRegion region(NewRegion(kSize), kSize); | 29 MemoryRegion region(NewRegion(kSize), kSize); |
33 EXPECT_EQ(kSize, region.size()); | 30 EXPECT_EQ(kSize, region.size()); |
34 EXPECT(region.pointer() != NULL); | 31 EXPECT(region.pointer() != NULL); |
35 | 32 |
36 region.Store<int32_t>(0, 42); | 33 region.Store<int32_t>(0, 42); |
37 EXPECT_EQ(42, region.Load<int32_t>(0)); | 34 EXPECT_EQ(42, region.Load<int32_t>(0)); |
38 | 35 |
39 DeleteRegion(region); | 36 DeleteRegion(region); |
40 } | 37 } |
41 | 38 |
42 | |
43 VM_UNIT_TEST_CASE(Subregion) { | 39 VM_UNIT_TEST_CASE(Subregion) { |
44 static const uword kSize = 1024; | 40 static const uword kSize = 1024; |
45 static const uword kSubOffset = 128; | 41 static const uword kSubOffset = 128; |
46 static const uword kSubSize = 512; | 42 static const uword kSubSize = 512; |
47 MemoryRegion region(NewRegion(kSize), kSize); | 43 MemoryRegion region(NewRegion(kSize), kSize); |
48 MemoryRegion sub_region; | 44 MemoryRegion sub_region; |
49 sub_region.Subregion(region, kSubOffset, kSubSize); | 45 sub_region.Subregion(region, kSubOffset, kSubSize); |
50 EXPECT_EQ(kSubSize, sub_region.size()); | 46 EXPECT_EQ(kSubSize, sub_region.size()); |
51 EXPECT(sub_region.pointer() != NULL); | 47 EXPECT(sub_region.pointer() != NULL); |
52 EXPECT(sub_region.start() == region.start() + kSubOffset); | 48 EXPECT(sub_region.start() == region.start() + kSubOffset); |
53 | 49 |
54 region.Store<int32_t>(0, 42); | 50 region.Store<int32_t>(0, 42); |
55 sub_region.Store<int32_t>(0, 100); | 51 sub_region.Store<int32_t>(0, 100); |
56 EXPECT_EQ(42, region.Load<int32_t>(0)); | 52 EXPECT_EQ(42, region.Load<int32_t>(0)); |
57 EXPECT_EQ(100, region.Load<int32_t>(kSubOffset)); | 53 EXPECT_EQ(100, region.Load<int32_t>(kSubOffset)); |
58 | 54 |
59 DeleteRegion(region); | 55 DeleteRegion(region); |
60 } | 56 } |
61 | 57 |
62 | |
63 VM_UNIT_TEST_CASE(ExtendedRegion) { | 58 VM_UNIT_TEST_CASE(ExtendedRegion) { |
64 static const uword kSize = 1024; | 59 static const uword kSize = 1024; |
65 static const uword kSubSize = 512; | 60 static const uword kSubSize = 512; |
66 static const uword kExtendSize = 512; | 61 static const uword kExtendSize = 512; |
67 MemoryRegion region(NewRegion(kSize), kSize); | 62 MemoryRegion region(NewRegion(kSize), kSize); |
68 MemoryRegion sub_region; | 63 MemoryRegion sub_region; |
69 sub_region.Subregion(region, 0, kSubSize); | 64 sub_region.Subregion(region, 0, kSubSize); |
70 MemoryRegion extended_region; | 65 MemoryRegion extended_region; |
71 extended_region.Extend(sub_region, kExtendSize); | 66 extended_region.Extend(sub_region, kExtendSize); |
72 EXPECT_EQ(kSize, extended_region.size()); | 67 EXPECT_EQ(kSize, extended_region.size()); |
73 EXPECT(extended_region.pointer() == region.pointer()); | 68 EXPECT(extended_region.pointer() == region.pointer()); |
74 EXPECT(extended_region.pointer() == sub_region.pointer()); | 69 EXPECT(extended_region.pointer() == sub_region.pointer()); |
75 | 70 |
76 extended_region.Store<int32_t>(0, 42); | 71 extended_region.Store<int32_t>(0, 42); |
77 EXPECT_EQ(42, extended_region.Load<int32_t>(0)); | 72 EXPECT_EQ(42, extended_region.Load<int32_t>(0)); |
78 | 73 |
79 DeleteRegion(region); | 74 DeleteRegion(region); |
80 } | 75 } |
81 | 76 |
82 } // namespace dart | 77 } // namespace dart |
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