| //===- 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)); |
| } |