diff options
Diffstat (limited to 'tests/RecordTest.cpp')
-rw-r--r-- | tests/RecordTest.cpp | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/tests/RecordTest.cpp b/tests/RecordTest.cpp index 2240ae9858..2a0e615516 100644 --- a/tests/RecordTest.cpp +++ b/tests/RecordTest.cpp @@ -78,3 +78,28 @@ DEF_TEST(Record, r) { #undef APPEND +template <typename T> +static bool is_aligned(const T* p) { + return (((uintptr_t)p) & (sizeof(T) - 1)) == 0; +} + +DEF_TEST(Record_Alignment, r) { + SkRecord record; + + // Of course a byte's always aligned. + REPORTER_ASSERT(r, is_aligned(record.alloc<uint8_t>())); + + // (If packed tightly, the rest below here would be off by one.) + + // It happens that the first implementation always aligned to 4 bytes, + // so these two were always correct. + REPORTER_ASSERT(r, is_aligned(record.alloc<uint16_t>())); + REPORTER_ASSERT(r, is_aligned(record.alloc<uint32_t>())); + + // These two are regression tests (void* only on 64-bit machines). + REPORTER_ASSERT(r, is_aligned(record.alloc<uint64_t>())); + REPORTER_ASSERT(r, is_aligned(record.alloc<void*>())); + + // We're not testing beyond sizeof(void*), which is where the current implementation will break. +} + |