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