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