clang/unittests/Format/FormatTestTableGen.cpp

   1 //===- unittest/Format/FormatTestTableGen.cpp -----------------------------===//
   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 "FormatTestUtils.h"
  10 #include "clang/Format/Format.h"
  11 #include "llvm/Support/Debug.h"
  12 #include "gtest/gtest.h"
  13
  14 #define DEBUG_TYPE "format-test"
  15
  16 namespace clang {
  17 namespace format {
  18
  19 class FormatTestTableGen : public ::testing::Test {
  20 protected:
  21   static std::string format(llvm::StringRef Code, unsigned Offset,
  22                             unsigned Length, const FormatStyle &Style) {
  23     LLVM_DEBUG(llvm::errs() << "---\n");
  24     LLVM_DEBUG(llvm::errs() << Code << "\n\n");
  25     std::vector<tooling::Range> Ranges(1, tooling::Range(Offset, Length));
  26     tooling::Replacements Replaces = reformat(Style, Code, Ranges);
  27     auto Result = applyAllReplacements(Code, Replaces);
  28     EXPECT_TRUE(static_cast<bool>(Result));
  29     LLVM_DEBUG(llvm::errs() << "\n" << *Result << "\n\n");
  30     return *Result;
  31   }
  32
  33   static std::string format(llvm::StringRef Code) {
  34     FormatStyle Style = getGoogleStyle(FormatStyle::LK_TableGen);
  35     Style.ColumnLimit = 60; // To make writing tests easier.
  36     return format(Code, 0, Code.size(), Style);
  37   }
  38
  39   static void verifyFormat(llvm::StringRef Code) {
  40     EXPECT_EQ(Code.str(), format(Code)) << "Expected code is not stable";
  41     EXPECT_EQ(Code.str(), format(test::messUp(Code)));
  42   }
  43 };
  44
  45 TEST_F(FormatTestTableGen, FormatStringBreak) {
  46   verifyFormat("include \"OptParser.td\"\n"
  47                "def flag : Flag<\"--foo\">,\n"
  48                "           HelpText<\n"
  49                "               \"This is a very, very, very, very, \"\n"
  50                "               \"very, very, very, very, very, very, \"\n"
  51                "               \"very long help string\">;");
  52 }
  53
  54 TEST_F(FormatTestTableGen, NoSpacesInSquareBracketLists) {
  55   verifyFormat("def flag : Flag<[\"-\", \"--\"], \"foo\">;");
  56 }
  57
  58 } // namespace format
  59 } // end namespace clang