text: //===- unittest/Format/FormatTestProto.cpp --------------------------------===//
  //
  //                     The LLVM Compiler Infrastructure
  //
  // This file is distributed under the University of Illinois Open Source
  // License. See LICENSE.TXT for details.
  //
  //===----------------------------------------------------------------------===//
  
  #include "FormatTestUtils.h"
  #include "clang/Format/Format.h"
  #include "llvm/Support/Debug.h"
  #include "gtest/gtest.h"
  
  #define DEBUG_TYPE "format-test"
  
  namespace clang {
  namespace format {
  
  class FormatTestTextProto : public ::testing::Test {
  protected:
    static std::string format(llvm::StringRef Code, unsigned Offset,
                              unsigned Length, const FormatStyle &Style) {
      DEBUG(llvm::errs() << "---\n");
      DEBUG(llvm::errs() << Code << "\n\n");
      std::vector<tooling::Range> Ranges(1, tooling::Range(Offset, Length));
      tooling::Replacements Replaces = reformat(Style, Code, Ranges);
      auto Result = applyAllReplacements(Code, Replaces);
      EXPECT_TRUE(static_cast<bool>(Result));
      DEBUG(llvm::errs() << "\n" << *Result << "\n\n");
      return *Result;
    }
  
    static std::string format(llvm::StringRef Code) {
      FormatStyle Style = getGoogleStyle(FormatStyle::LK_TextProto);
      Style.ColumnLimit = 60; // To make writing tests easier.
      return format(Code, 0, Code.size(), Style);
    }
  
    static void verifyFormat(llvm::StringRef Code) {
      EXPECT_EQ(Code.str(), format(test::messUp(Code)));
    }
  };
  
  TEST_F(FormatTestTextProto, KeepsTopLevelEntriesFittingALine) {
    verifyFormat("field_a: OK field_b: OK field_c: OK field_d: OK field_e: OK");
  }
  
  TEST_F(FormatTestTextProto, SupportsMessageFields) {
    verifyFormat("msg_field: {}");
  
    verifyFormat("msg_field: {field_a: A}");
  
    verifyFormat("msg_field: {field_a: \"OK\" field_b: 123}");
  
    verifyFormat("msg_field: {\n"
                 "  field_a: 1\n"
                 "  field_b: OK\n"
                 "  field_c: \"OK\"\n"
                 "  field_d: 123\n"
                 "  field_e: 23\n"
                 "}");
  
    verifyFormat("msg_field {}");
  
    verifyFormat("msg_field {field_a: A}");
  
    verifyFormat("msg_field {field_a: \"OK\" field_b: 123}");
  
    verifyFormat("msg_field {\n"
                 "  field_a: 1\n"
                 "  field_b: OK\n"
                 "  field_c: \"OK\"\n"
                 "  field_d: 123\n"
                 "  field_e: 23.0\n"
                 "  field_f: false\n"
                 "  field_g: 'lala'\n"
                 "  field_h: 1234.567e-89\n"
                 "}");
  
    verifyFormat("msg_field: {msg_field {field_a: 1}}");
  
    verifyFormat("id: \"ala.bala\"\n"
                 "item {type: ITEM_A rank: 1 score: 90.0}\n"
                 "item {type: ITEM_B rank: 2 score: 70.5}\n"
                 "item {\n"
                 "  type: ITEM_A\n"
                 "  rank: 3\n"
                 "  score: 20.0\n"
                 "  description: \"the third item has a description\"\n"
                 "}");
  }
  
  TEST_F(FormatTestTextProto, AvoidsTopLevelBinPacking) {
    verifyFormat("field_a: OK\n"
                 "field_b: OK\n"
                 "field_c: OK\n"
                 "field_d: OK\n"
                 "field_e: OK\n"
                 "field_f: OK");
  
    verifyFormat("field_a: OK\n"
                 "field_b: \"OK\"\n"
                 "field_c: \"OK\"\n"
                 "msg_field: {field_d: 123}\n"
                 "field_e: OK\n"
                 "field_f: OK");
  
    verifyFormat("field_a: OK\n"
                 "field_b: \"OK\"\n"
                 "field_c: \"OK\"\n"
                 "msg_field: {field_d: 123 field_e: OK}");
  
    verifyFormat("a: {\n"
                 "  field_a: OK\n"
                 "  field_b {field_c: OK}\n"
                 "  field_d: OKOKOK\n"
                 "  field_e: OK\n"
                 "}");
  
    verifyFormat("field_a: OK,\n"
                 "field_b {field_c: OK},\n"
                 "field_d: OKOKOK,\n"
                 "field_e: OK");
  }
  
  TEST_F(FormatTestTextProto, AddsNewlinesAfterTrailingComments) {
    verifyFormat("field_a: OK  // Comment\n"
                 "field_b: 1");
  
    verifyFormat("field_a: OK\n"
                 "msg_field: {\n"
                 "  field_b: OK  // Comment\n"
                 "}");
  
    verifyFormat("field_a: OK\n"
                 "msg_field {\n"
                 "  field_b: OK  // Comment\n"
                 "}");
  }
  
  TEST_F(FormatTestTextProto, SupportsAngleBracketMessageFields) {
    // Single-line tests
    verifyFormat("msg_field <>");
    verifyFormat("msg_field: <>");
    verifyFormat("msg_field <field_a: OK>");
    verifyFormat("msg_field: <field_a: 123>");
    verifyFormat("msg_field <field_a <>>");
    verifyFormat("msg_field <field_a <field_b <>>>");
    verifyFormat("msg_field: <field_a <field_b: <>>>");
    verifyFormat("msg_field <field_a: OK, field_b: \"OK\">");
    verifyFormat("msg_field <field_a: OK field_b: <>, field_c: OK>");
    verifyFormat("msg_field <field_a {field_b: 1}, field_c: <field_d: 2>>");
    verifyFormat("msg_field: <field_a: OK, field_b: \"OK\">");
    verifyFormat("msg_field: <field_a: OK field_b: <>, field_c: OK>");
    verifyFormat("msg_field: <field_a {field_b: 1}, field_c: <field_d: 2>>");
    verifyFormat("field_a: \"OK\", msg_field: <field_b: 123>, field_c: {}");
    verifyFormat("field_a <field_b: 1>, msg_field: <field_b: 123>, field_c <>");
    verifyFormat("field_a <field_b: 1> msg_field: <field_b: 123> field_c <>");
    verifyFormat("field <field <field: <>>, field <>> field: <field: 1>");
  
    // Multiple lines tests
    verifyFormat("msg_field <\n"
                 "  field_a: OK\n"
                 "  field_b: \"OK\"\n"
                 "  field_c: 1\n"
                 "  field_d: 12.5\n"
                 "  field_e: OK\n"
                 ">");
  
    verifyFormat("msg_field: <>\n"
                 "field_c: \"OK\",\n"
                 "msg_field: <field_d: 123>\n"
                 "field_e: OK\n"
                 "msg_field: <field_d: 12>");
  
    verifyFormat("field_a: OK,\n"
                 "field_b <field_c: OK>,\n"
                 "field_d: <12.5>,\n"
                 "field_e: OK");
  
    verifyFormat("field_a: OK\n"
                 "field_b <field_c: OK>\n"
                 "field_d: <12.5>\n"
                 "field_e: OKOKOK");
  
    verifyFormat("msg_field <\n"
                 "  field_a: OK,\n"
                 "  field_b <field_c: OK>,\n"
                 "  field_d: <12.5>,\n"
                 "  field_e: OK\n"
                 ">");
  
    verifyFormat("msg_field <\n"
                 "  field_a: <field: OK>,\n"
                 "  field_b <field_c: OK>,\n"
                 "  field_d: <12.5>,\n"
                 "  field_e: OK,\n"
                 ">");
  
    verifyFormat("msg_field: <\n"
                 "  field_a: \"OK\"\n"
                 "  msg_field: {field_b: OK}\n"
                 "  field_g: OK\n"
                 "  field_g: OK\n"
                 "  field_g: OK\n"
                 ">");
  
    verifyFormat("field_a {\n"
                 "  field_d: ok\n"
                 "  field_b: <field_c: 1>\n"
                 "  field_d: ok\n"
                 "  field_d: ok\n"
                 "}");
  
    verifyFormat("field_a: {\n"
                 "  field_d: ok\n"
                 "  field_b: <field_c: 1>\n"
                 "  field_d: ok\n"
                 "  field_d: ok\n"
                 "}");
  
    verifyFormat("field_a: <f1: 1, f2: <>>\n"
                 "field_b <\n"
                 "  field_b1: <>\n"
                 "  field_b2: ok,\n"
                 "  field_b3: <\n"
                 "    field_x {}  // Comment\n"
                 "    field_y: {field_z: 1}\n"
                 "    field_w: ok\n"
                 "  >\n"
                 "  field {\n"
                 "    field_x <>  // Comment\n"
                 "    field_y: <field_z: 1>\n"
                 "    field_w: ok\n"
                 "    msg_field: <\n"
                 "      field: <>\n"
                 "      field: <field: 1>\n"
                 "      field: <field: 2>\n"
                 "      field: <field: 3>\n"
                 "      field: <field: 4>\n"
                 "      field: ok\n"
                 "    >\n"
                 "  }\n"
                 ">\n"
                 "field: OK,\n"
                 "field_c <field <field <>>>");
  }
  } // end namespace tooling
  } // end namespace clang
  