/*
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* Copyright (C) 2018 The Android Open Source Project
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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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*/
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#include "utils/strings/substitute.h"
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#include <vector>
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#include "gmock/gmock.h"
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#include "gtest/gtest.h"
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#include "utils/strings/stringpiece.h"
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namespace libtextclassifier3 {
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namespace {
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TEST(SubstituteTest, Substitute) {
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EXPECT_EQ("Hello, world!",
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strings::Substitute("$0, $1!", {"Hello", "world"}));
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// Out of order.
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EXPECT_EQ("world, Hello!",
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strings::Substitute("$1, $0!", {"Hello", "world"}));
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EXPECT_EQ("b, a, c, b",
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strings::Substitute("$1, $0, $2, $1", {"a", "b", "c"}));
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// Literal $
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EXPECT_EQ("$", strings::Substitute("$$", {}));
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EXPECT_EQ("$1", strings::Substitute("$$1", {}));
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const char* null_cstring = nullptr;
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EXPECT_EQ("Text: ''", strings::Substitute("Text: '$0'", {null_cstring}));
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}
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} // namespace
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} // namespace libtextclassifier3
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