xref: /llvm-project/clang-tools-extra/clangd/unittests/tweaks/RawStringLiteralTests.cpp (revision 2f3d4f6c9829bfc17a3e2d034286c03940d506ec)
1 //===-- RawStringLiteralTests.cpp -------------------------------*- C++ -*-===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8 
9 #include "TweakTesting.h"
10 #include "gmock/gmock-matchers.h"
11 #include "gmock/gmock.h"
12 #include "gtest/gtest.h"
13 
14 namespace clang {
15 namespace clangd {
16 namespace {
17 
18 TWEAK_TEST(RawStringLiteral);
19 
TEST_F(RawStringLiteralTest,Test)20 TEST_F(RawStringLiteralTest, Test) {
21   Context = Expression;
22   EXPECT_AVAILABLE(R"cpp(^"^f^o^o^\^n^")cpp");
23   EXPECT_AVAILABLE(R"cpp(R"(multi )" ^"token " "str\ning")cpp");
24   EXPECT_UNAVAILABLE(R"cpp(^"f^o^o^o")cpp"); // no chars need escaping
25   EXPECT_UNAVAILABLE(R"cpp(R"(multi )" ^"token " u8"str\ning")cpp"); // nonascii
26   EXPECT_UNAVAILABLE(R"cpp(^R^"^(^multi )" "token " "str\ning")cpp"); // raw
27   EXPECT_UNAVAILABLE(R"cpp(^"token\n" __FILE__)cpp"); // chunk is macro
28   EXPECT_UNAVAILABLE(R"cpp(^"a\r\n";)cpp");           // forbidden escape char
29 
30   const char *Input = R"cpp(R"(multi
31 token)" "\nst^ring\n" "literal")cpp";
32   const char *Output = R"cpp(R"(multi
33 token
34 string
35 literal)")cpp";
36   EXPECT_EQ(apply(Input), Output);
37 }
38 
TEST_F(RawStringLiteralTest,TestC)39 TEST_F(RawStringLiteralTest, TestC) {
40   Context = File;
41   FileName = "TestTU.c";
42   ExtraArgs = {"-xc"}; // raw strings are unavailable in C
43   EXPECT_UNAVAILABLE(R"c(const char *a = ^"^f^o^o^\^n^";)c");
44 }
45 
TEST_F(RawStringLiteralTest,TestCpp98)46 TEST_F(RawStringLiteralTest, TestCpp98) {
47   Context = File;
48   ExtraArgs = {"-std=c++98"}; // raw strings are unavailable
49                               // in versions prior to C++11
50   EXPECT_UNAVAILABLE(R"cpp(const char *a = ^"^f^o^o^\^n^";)cpp");
51 }
52 
53 } // namespace
54 } // namespace clangd
55 } // namespace clang
56