Abseil Common Libraries (C++) (grcp 依赖)
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98 lines
2.8 KiB
98 lines
2.8 KiB
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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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// https://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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// |
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#include "absl/strings/internal/str_format/extension.h" |
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#include <random> |
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#include <string> |
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#include "gtest/gtest.h" |
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#include "absl/strings/str_format.h" |
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#include "absl/strings/string_view.h" |
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namespace my_namespace { |
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class UserDefinedType { |
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public: |
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UserDefinedType() = default; |
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void Append(absl::string_view str) { value_.append(str.data(), str.size()); } |
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const std::string& Value() const { return value_; } |
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friend void AbslFormatFlush(UserDefinedType* x, absl::string_view str) { |
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x->Append(str); |
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} |
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private: |
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std::string value_; |
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}; |
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} // namespace my_namespace |
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namespace { |
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std::string MakeRandomString(size_t len) { |
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std::random_device rd; |
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std::mt19937 gen(rd()); |
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std::uniform_int_distribution<> dis('a', 'z'); |
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std::string s(len, '0'); |
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for (char& c : s) { |
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c = dis(gen); |
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} |
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return s; |
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} |
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TEST(FormatExtensionTest, SinkAppendSubstring) { |
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for (size_t chunk_size : {1, 10, 100, 1000, 10000}) { |
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std::string expected, actual; |
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absl::str_format_internal::FormatSinkImpl sink(&actual); |
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for (size_t chunks = 0; chunks < 10; ++chunks) { |
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std::string rand = MakeRandomString(chunk_size); |
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expected += rand; |
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sink.Append(rand); |
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} |
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sink.Flush(); |
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EXPECT_EQ(actual, expected); |
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} |
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} |
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TEST(FormatExtensionTest, SinkAppendChars) { |
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for (size_t chunk_size : {1, 10, 100, 1000, 10000}) { |
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std::string expected, actual; |
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absl::str_format_internal::FormatSinkImpl sink(&actual); |
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for (size_t chunks = 0; chunks < 10; ++chunks) { |
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std::string rand = MakeRandomString(1); |
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expected.append(chunk_size, rand[0]); |
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sink.Append(chunk_size, rand[0]); |
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} |
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sink.Flush(); |
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EXPECT_EQ(actual, expected); |
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} |
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} |
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TEST(FormatExtensionTest, VerifyEnumEquality) { |
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#define X_VAL(id) \ |
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EXPECT_EQ(absl::FormatConversionChar::id, \ |
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absl::str_format_internal::FormatConversionCharInternal::id); |
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ABSL_INTERNAL_CONVERSION_CHARS_EXPAND_(X_VAL, ); |
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#undef X_VAL |
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#define X_VAL(id) \ |
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EXPECT_EQ(absl::FormatConversionCharSet::id, \ |
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absl::str_format_internal::FormatConversionCharSetInternal::id); |
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ABSL_INTERNAL_CONVERSION_CHARS_EXPAND_(X_VAL, ); |
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#undef X_VAL |
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} |
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} // namespace
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