| // Copyright 2017 The Abseil Authors. |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| #include "absl/strings/internal/resize_uninitialized.h" |
| |
| #include "gtest/gtest.h" |
| |
| namespace { |
| |
| int resize_call_count = 0; |
| |
| struct resizable_string { |
| void resize(size_t) { resize_call_count += 1; } |
| }; |
| |
| int resize_uninitialized_call_count = 0; |
| |
| struct resize_uninitializable_string { |
| void resize(size_t) { resize_call_count += 1; } |
| void resize_uninitialized(size_t) { resize_uninitialized_call_count += 1; } |
| }; |
| |
| TEST(ResizeUninit, WithAndWithout) { |
| resize_call_count = 0; |
| resize_uninitialized_call_count = 0; |
| { |
| resizable_string rs; |
| |
| EXPECT_EQ(resize_call_count, 0); |
| EXPECT_EQ(resize_uninitialized_call_count, 0); |
| EXPECT_FALSE( |
| absl::strings_internal::STLStringSupportsNontrashingResize(&rs)); |
| EXPECT_EQ(resize_call_count, 0); |
| EXPECT_EQ(resize_uninitialized_call_count, 0); |
| absl::strings_internal::STLStringResizeUninitialized(&rs, 237); |
| EXPECT_EQ(resize_call_count, 1); |
| EXPECT_EQ(resize_uninitialized_call_count, 0); |
| } |
| |
| resize_call_count = 0; |
| resize_uninitialized_call_count = 0; |
| { |
| resize_uninitializable_string rus; |
| |
| EXPECT_EQ(resize_call_count, 0); |
| EXPECT_EQ(resize_uninitialized_call_count, 0); |
| EXPECT_TRUE( |
| absl::strings_internal::STLStringSupportsNontrashingResize(&rus)); |
| EXPECT_EQ(resize_call_count, 0); |
| EXPECT_EQ(resize_uninitialized_call_count, 0); |
| absl::strings_internal::STLStringResizeUninitialized(&rus, 237); |
| EXPECT_EQ(resize_call_count, 0); |
| EXPECT_EQ(resize_uninitialized_call_count, 1); |
| } |
| } |
| |
| } // namespace |