clang-tools-extra/clangd/unittests/tweaks/RawStringLiteralTests.cpp

   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
  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
  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
  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