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