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| 1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. | |
| 2 // Use of this source code is governed by a BSD-style license that can be | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #include "testing/gtest/include/gtest/gtest.h" | |
| 6 | |
| 7 #include "base/mac/mac_util.h" | |
| 8 #include "content/browser/mac/closure_blocks_leopard_compat.h" | |
| 9 | |
| 10 // Used in ClosureBlocksLeopardCompatTest.Global. Putting a block at global | |
| 11 // scope results in a block structure whose isa field is set to | |
| 12 // NSConcreteGlobalBlock, ensuring that symbol is referenced. This test needs | |
| 13 // to be able to load on 10.5 where that symbol is not present at runtime, so | |
| 14 // the real test here is that the symbol is weakly imported. If not, the | |
| 15 // executable will fail to load. | |
| 16 void (^global_block)(bool*) = ^(bool* ran_pointer) { *ran_pointer = true; }; | |
| 17 | |
| 18 namespace { | |
| 19 | |
| 20 // It should be possible to declare a block on OSes as early as Leopard | |
| 21 // (10.5). This should be buildable with the 10.5 SDK and a 10.5 deployment | |
| 22 // target, and runnable on 10.5. However, the block itself is not expected to | |
| 23 // be runnable on 10.5. This test verfies that blocks are buildable on 10.5 | |
| 24 // and runnable on Snow Leopard (10.6) and later. | |
| 25 | |
| 26 TEST(ClosureBlocksLeopardCompatTest, Stack) { | |
| 27 bool ran = false; | |
| 28 | |
| 29 // This should result in a block structure whose isa field is set to | |
| 30 // NSConcreteStackBlock, ensuring that symbol is referenced. This test | |
| 31 // needs to be able to load on 10.5 where that symbol is not present at | |
| 32 // runtime, so the real test here checks that the symbol is weakly imported. | |
| 33 // If not, the executable will fail to load. | |
| 34 | |
| 35 void (^test_block)(bool*) = ^(bool* ran_pointer) { *ran_pointer = true; }; | |
| 36 | |
| 37 ASSERT_FALSE(ran); | |
| 38 | |
| 39 if (base::mac::IsOSSnowLeopardOrLater()) { | |
| 40 test_block(&ran); | |
| 41 | |
| 42 EXPECT_TRUE(ran); | |
| 43 } | |
| 44 } | |
| 45 | |
| 46 TEST(ClosureBlocksLeopardCompatTest, Global) { | |
| 47 bool ran = false; | |
| 48 | |
| 49 ASSERT_FALSE(ran); | |
| 50 | |
| 51 if (base::mac::IsOSSnowLeopardOrLater()) { | |
| 52 global_block(&ran); | |
| 53 | |
| 54 EXPECT_TRUE(ran); | |
| 55 } | |
| 56 } | |
| 57 | |
| 58 TEST(ClosureBlocksLeopardCompatTest, CopyRelease) { | |
| 59 if (base::mac::IsOSSnowLeopardOrLater()) { | |
| 60 // Protect the entire test in this conditional, because __block won't run | |
| 61 // on 10.5. | |
| 62 __block int value = 0; | |
| 63 | |
| 64 typedef int (^TestBlockType)(); | |
| 65 TestBlockType local_block = ^(void) { return ++value; }; | |
| 66 | |
| 67 ASSERT_EQ(0, value); | |
| 68 | |
| 69 int rv = local_block(); | |
| 70 EXPECT_EQ(1, rv); | |
| 71 EXPECT_EQ(rv, value); | |
| 72 | |
| 73 // Using Block_copy, Block_release, and these other operations ensures | |
| 74 // that _Block_copy, _Block_release, _Block_object_assign, and | |
| 75 // _Block_object_dispose are referenced. This test needs to be able to | |
| 76 // load on 10.5 where these symbols are not present at runtime, so the | |
| 77 // real test here is that the symbol is weakly imported. If not, the | |
| 78 // executable will fail to load. | |
| 79 | |
| 80 TestBlockType copied_block = Block_copy(local_block); | |
| 81 | |
| 82 rv = copied_block(); | |
| 83 EXPECT_EQ(2, rv); | |
| 84 EXPECT_EQ(rv, value); | |
| 85 | |
| 86 rv = copied_block(); | |
| 87 EXPECT_EQ(3, rv); | |
| 88 EXPECT_EQ(rv, value); | |
| 89 | |
| 90 Block_release(copied_block); | |
| 91 | |
| 92 rv = local_block(); | |
| 93 EXPECT_EQ(4, rv); | |
| 94 EXPECT_EQ(rv, value); | |
| 95 } | |
| 96 } | |
| 97 | |
| 98 } // namespace | |
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Chromium Code Reviews
Issue 9549012:
Move closure_blocks_leopard_compat to base now that it's used by two modules. (Closed)
Base URL: svn://chrome-svn/chrome/trunk/src/