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49 lines
1.2 KiB
C++
49 lines
1.2 KiB
C++
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//===- llvm/unittest/StringViewTest.cpp - StringView unit tests -----------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/Demangle/StringView.h"
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#include "gtest/gtest.h"
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using namespace llvm;
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using llvm::itanium_demangle::StringView;
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namespace llvm {
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namespace itanium_demangle {
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std::ostream &operator<<(std::ostream &OS, const StringView &S) {
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return OS.write(S.begin(), S.size());
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}
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} // namespace itanium_demangle
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} // namespace llvm
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TEST(StringViewTest, EmptyInitializerList) {
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StringView S = {};
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EXPECT_TRUE(S.empty());
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S = {};
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EXPECT_TRUE(S.empty());
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}
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TEST(StringViewTest, Substr) {
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StringView S("abcdef");
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EXPECT_EQ("abcdef", S.substr(0));
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EXPECT_EQ("f", S.substr(5));
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EXPECT_EQ("", S.substr(6));
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EXPECT_EQ("", S.substr(0, 0));
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EXPECT_EQ("a", S.substr(0, 1));
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EXPECT_EQ("abcde", S.substr(0, 5));
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EXPECT_EQ("abcdef", S.substr(0, 6));
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EXPECT_EQ("abcdef", S.substr(0, 7));
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EXPECT_EQ("f", S.substr(5, 100));
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EXPECT_EQ("", S.substr(6, 100));
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}
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