171   MemMap source = MemMap::MapAnonymous("MapAnonymous-atomic-replace-source",  in TEST_F()  local
176   ASSERT_TRUE(source.IsValid());  in TEST_F()
177   void* source_addr = source.Begin();  in TEST_F()
183   memcpy(source.Begin(), data.data(), data.size());  in TEST_F()
185   ASSERT_TRUE(dest.ReplaceWith(&source, &error_msg)) << error_msg;  in TEST_F()
189   ASSERT_FALSE(source.IsValid());  in TEST_F()
208   MemMap source = MemMap::MapAnonymous("MapAnonymous-atomic-replace-source",  in TEST_F()  local
213   ASSERT_TRUE(source.IsValid());  in TEST_F()
214   uint8_t* source_addr = source.Begin();  in TEST_F()
220   memcpy(source.Begin(), data.data(), data.size());  in TEST_F()
229   ASSERT_TRUE(dest.ReplaceWith(&source, &error_msg)) << error_msg;  in TEST_F()
235   ASSERT_FALSE(source.IsValid());  in TEST_F()
248   MemMap source = MemMap::MapAnonymous("MapAnonymous-atomic-replace-source",  in TEST_F()  local
253   ASSERT_TRUE(source.IsValid());  in TEST_F()
254   uint8_t* source_addr = source.Begin();  in TEST_F()
262   memcpy(source.Begin(), data.data(), kPageSize);  in TEST_F()
264   ASSERT_TRUE(dest.ReplaceWith(&source, &error_msg)) << error_msg;  in TEST_F()
270   ASSERT_FALSE(source.IsValid());  in TEST_F()
289   MemMap source = MemMap::MapAnonymous("MapAnonymous-atomic-replace-source",  in TEST_F()  local
297   ASSERT_TRUE(source.IsValid());  in TEST_F()
298   ASSERT_EQ(dest.Begin() + kPageSize, source.Begin());  in TEST_F()
299   uint8_t* source_addr = source.Begin();  in TEST_F()
305   memcpy(source.Begin(), data.data(), data.size());  in TEST_F()
312   ASSERT_FALSE(dest.ReplaceWith(&source, &error_msg)) << error_msg;  in TEST_F()
316   ASSERT_EQ(source.Size(), data.size());  in TEST_F()
319   ASSERT_EQ(memcmp(source.Begin(), data.data(), data.size()), 0);  in TEST_F()