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diff --git a/clang/unittests/Tooling/CompilationDatabaseTest.cpp b/clang/unittests/Tooling/CompilationDatabaseTest.cpp
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+//===- unittest/Tooling/CompilationDatabaseTest.cpp -----------------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "clang/AST/ASTConsumer.h"
+#include "clang/AST/DeclCXX.h"
+#include "clang/AST/DeclGroup.h"
+#include "clang/Frontend/FrontendAction.h"
+#include "clang/Tooling/CompilationDatabase.h"
+#include "clang/Tooling/Tooling.h"
+#include "gtest/gtest.h"
+
+namespace clang {
+namespace tooling {
+
+static CompileCommand findCompileArgsInJsonDatabase(StringRef FileName,
+ StringRef JSONDatabase,
+ std::string &ErrorMessage) {
+ llvm::OwningPtr<CompilationDatabase> Database(
+ JSONCompilationDatabase::loadFromBuffer(JSONDatabase, ErrorMessage));
+ if (!Database)
+ return CompileCommand();
+ std::vector<CompileCommand> Commands = Database->getCompileCommands(FileName);
+ EXPECT_LE(Commands.size(), 1u);
+ if (Commands.empty())
+ return CompileCommand();
+ return Commands[0];
+}
+
+TEST(findCompileArgsInJsonDatabase, FindsNothingIfEmpty) {
+ std::string ErrorMessage;
+ CompileCommand NotFound = findCompileArgsInJsonDatabase(
+ "a-file.cpp", "", ErrorMessage);
+ EXPECT_TRUE(NotFound.CommandLine.empty()) << ErrorMessage;
+ EXPECT_TRUE(NotFound.Directory.empty()) << ErrorMessage;
+}
+
+TEST(findCompileArgsInJsonDatabase, ReadsSingleEntry) {
+ StringRef Directory("/some/directory");
+ StringRef FileName("/path/to/a-file.cpp");
+ StringRef Command("/path/to/compiler and some arguments");
+ std::string ErrorMessage;
+ CompileCommand FoundCommand = findCompileArgsInJsonDatabase(
+ FileName,
+ ("[{\"directory\":\"" + Directory + "\"," +
+ "\"command\":\"" + Command + "\","
+ "\"file\":\"" + FileName + "\"}]").str(),
+ ErrorMessage);
+ EXPECT_EQ(Directory, FoundCommand.Directory) << ErrorMessage;
+ ASSERT_EQ(4u, FoundCommand.CommandLine.size()) << ErrorMessage;
+ EXPECT_EQ("/path/to/compiler", FoundCommand.CommandLine[0]) << ErrorMessage;
+ EXPECT_EQ("and", FoundCommand.CommandLine[1]) << ErrorMessage;
+ EXPECT_EQ("some", FoundCommand.CommandLine[2]) << ErrorMessage;
+ EXPECT_EQ("arguments", FoundCommand.CommandLine[3]) << ErrorMessage;
+
+ CompileCommand NotFound = findCompileArgsInJsonDatabase(
+ "a-file.cpp",
+ ("[{\"directory\":\"" + Directory + "\"," +
+ "\"command\":\"" + Command + "\","
+ "\"file\":\"" + FileName + "\"}]").str(),
+ ErrorMessage);
+ EXPECT_TRUE(NotFound.Directory.empty()) << ErrorMessage;
+ EXPECT_TRUE(NotFound.CommandLine.empty()) << ErrorMessage;
+}
+
+TEST(findCompileArgsInJsonDatabase, ReadsCompileCommandLinesWithSpaces) {
+ StringRef Directory("/some/directory");
+ StringRef FileName("/path/to/a-file.cpp");
+ StringRef Command("\\\"/path to compiler\\\" \\\"and an argument\\\"");
+ std::string ErrorMessage;
+ CompileCommand FoundCommand = findCompileArgsInJsonDatabase(
+ FileName,
+ ("[{\"directory\":\"" + Directory + "\"," +
+ "\"command\":\"" + Command + "\","
+ "\"file\":\"" + FileName + "\"}]").str(),
+ ErrorMessage);
+ ASSERT_EQ(2u, FoundCommand.CommandLine.size());
+ EXPECT_EQ("/path to compiler", FoundCommand.CommandLine[0]) << ErrorMessage;
+ EXPECT_EQ("and an argument", FoundCommand.CommandLine[1]) << ErrorMessage;
+}
+
+TEST(findCompileArgsInJsonDatabase, ReadsDirectoryWithSpaces) {
+ StringRef Directory("/some directory / with spaces");
+ StringRef FileName("/path/to/a-file.cpp");
+ StringRef Command("a command");
+ std::string ErrorMessage;
+ CompileCommand FoundCommand = findCompileArgsInJsonDatabase(
+ FileName,
+ ("[{\"directory\":\"" + Directory + "\"," +
+ "\"command\":\"" + Command + "\","
+ "\"file\":\"" + FileName + "\"}]").str(),
+ ErrorMessage);
+ EXPECT_EQ(Directory, FoundCommand.Directory) << ErrorMessage;
+}
+
+TEST(findCompileArgsInJsonDatabase, FindsEntry) {
+ StringRef Directory("directory");
+ StringRef FileName("file");
+ StringRef Command("command");
+ std::string JsonDatabase = "[";
+ for (int I = 0; I < 10; ++I) {
+ if (I > 0) JsonDatabase += ",";
+ JsonDatabase +=
+ ("{\"directory\":\"" + Directory + Twine(I) + "\"," +
+ "\"command\":\"" + Command + Twine(I) + "\","
+ "\"file\":\"" + FileName + Twine(I) + "\"}").str();
+ }
+ JsonDatabase += "]";
+ std::string ErrorMessage;
+ CompileCommand FoundCommand = findCompileArgsInJsonDatabase(
+ "file4", JsonDatabase, ErrorMessage);
+ EXPECT_EQ("directory4", FoundCommand.Directory) << ErrorMessage;
+ ASSERT_EQ(1u, FoundCommand.CommandLine.size()) << ErrorMessage;
+ EXPECT_EQ("command4", FoundCommand.CommandLine[0]) << ErrorMessage;
+}
+
+static std::vector<std::string> unescapeJsonCommandLine(StringRef Command) {
+ std::string JsonDatabase =
+ ("[{\"directory\":\"\", \"file\":\"test\", \"command\": \"" +
+ Command + "\"}]").str();
+ std::string ErrorMessage;
+ CompileCommand FoundCommand = findCompileArgsInJsonDatabase(
+ "test", JsonDatabase, ErrorMessage);
+ EXPECT_TRUE(ErrorMessage.empty()) << ErrorMessage;
+ return FoundCommand.CommandLine;
+}
+
+TEST(unescapeJsonCommandLine, ReturnsEmptyArrayOnEmptyString) {
+ std::vector<std::string> Result = unescapeJsonCommandLine("");
+ EXPECT_TRUE(Result.empty());
+}
+
+TEST(unescapeJsonCommandLine, SplitsOnSpaces) {
+ std::vector<std::string> Result = unescapeJsonCommandLine("a b c");
+ ASSERT_EQ(3ul, Result.size());
+ EXPECT_EQ("a", Result[0]);
+ EXPECT_EQ("b", Result[1]);
+ EXPECT_EQ("c", Result[2]);
+}
+
+TEST(unescapeJsonCommandLine, MungesMultipleSpaces) {
+ std::vector<std::string> Result = unescapeJsonCommandLine(" a b ");
+ ASSERT_EQ(2ul, Result.size());
+ EXPECT_EQ("a", Result[0]);
+ EXPECT_EQ("b", Result[1]);
+}
+
+TEST(unescapeJsonCommandLine, UnescapesBackslashCharacters) {
+ std::vector<std::string> Backslash = unescapeJsonCommandLine("a\\\\\\\\");
+ ASSERT_EQ(1ul, Backslash.size());
+ EXPECT_EQ("a\\", Backslash[0]);
+ std::vector<std::string> Quote = unescapeJsonCommandLine("a\\\\\\\"");
+ ASSERT_EQ(1ul, Quote.size());
+ EXPECT_EQ("a\"", Quote[0]);
+}
+
+TEST(unescapeJsonCommandLine, DoesNotMungeSpacesBetweenQuotes) {
+ std::vector<std::string> Result = unescapeJsonCommandLine("\\\" a b \\\"");
+ ASSERT_EQ(1ul, Result.size());
+ EXPECT_EQ(" a b ", Result[0]);
+}
+
+TEST(unescapeJsonCommandLine, AllowsMultipleQuotedArguments) {
+ std::vector<std::string> Result = unescapeJsonCommandLine(
+ " \\\" a \\\" \\\" b \\\" ");
+ ASSERT_EQ(2ul, Result.size());
+ EXPECT_EQ(" a ", Result[0]);
+ EXPECT_EQ(" b ", Result[1]);
+}
+
+TEST(unescapeJsonCommandLine, AllowsEmptyArgumentsInQuotes) {
+ std::vector<std::string> Result = unescapeJsonCommandLine(
+ "\\\"\\\"\\\"\\\"");
+ ASSERT_EQ(1ul, Result.size());
+ EXPECT_TRUE(Result[0].empty()) << Result[0];
+}
+
+TEST(unescapeJsonCommandLine, ParsesEscapedQuotesInQuotedStrings) {
+ std::vector<std::string> Result = unescapeJsonCommandLine(
+ "\\\"\\\\\\\"\\\"");
+ ASSERT_EQ(1ul, Result.size());
+ EXPECT_EQ("\"", Result[0]);
+}
+
+TEST(unescapeJsonCommandLine, ParsesMultipleArgumentsWithEscapedCharacters) {
+ std::vector<std::string> Result = unescapeJsonCommandLine(
+ " \\\\\\\" \\\"a \\\\\\\" b \\\" \\\"and\\\\\\\\c\\\" \\\\\\\"");
+ ASSERT_EQ(4ul, Result.size());
+ EXPECT_EQ("\"", Result[0]);
+ EXPECT_EQ("a \" b ", Result[1]);
+ EXPECT_EQ("and\\c", Result[2]);
+ EXPECT_EQ("\"", Result[3]);
+}
+
+TEST(unescapeJsonCommandLine, ParsesStringsWithoutSpacesIntoSingleArgument) {
+ std::vector<std::string> QuotedNoSpaces = unescapeJsonCommandLine(
+ "\\\"a\\\"\\\"b\\\"");
+ ASSERT_EQ(1ul, QuotedNoSpaces.size());
+ EXPECT_EQ("ab", QuotedNoSpaces[0]);
+
+ std::vector<std::string> MixedNoSpaces = unescapeJsonCommandLine(
+ "\\\"a\\\"bcd\\\"ef\\\"\\\"\\\"\\\"g\\\"");
+ ASSERT_EQ(1ul, MixedNoSpaces.size());
+ EXPECT_EQ("abcdefg", MixedNoSpaces[0]);
+}
+
+TEST(unescapeJsonCommandLine, ParsesQuotedStringWithoutClosingQuote) {
+ std::vector<std::string> Unclosed = unescapeJsonCommandLine("\\\"abc");
+ ASSERT_EQ(1ul, Unclosed.size());
+ EXPECT_EQ("abc", Unclosed[0]);
+
+ std::vector<std::string> Empty = unescapeJsonCommandLine("\\\"");
+ ASSERT_EQ(1ul, Empty.size());
+ EXPECT_EQ("", Empty[0]);
+}
+
+TEST(FixedCompilationDatabase, ReturnsFixedCommandLine) {
+ std::vector<std::string> CommandLine;
+ CommandLine.push_back("one");
+ CommandLine.push_back("two");
+ FixedCompilationDatabase Database(".", CommandLine);
+ std::vector<CompileCommand> Result =
+ Database.getCompileCommands("source");
+ ASSERT_EQ(1ul, Result.size());
+ std::vector<std::string> ExpectedCommandLine(1, "clang-tool");
+ ExpectedCommandLine.insert(ExpectedCommandLine.end(),
+ CommandLine.begin(), CommandLine.end());
+ ExpectedCommandLine.push_back("source");
+ EXPECT_EQ(".", Result[0].Directory);
+ EXPECT_EQ(ExpectedCommandLine, Result[0].CommandLine);
+}
+
+TEST(ParseFixedCompilationDatabase, ReturnsNullOnEmptyArgumentList) {
+ int Argc = 0;
+ llvm::OwningPtr<FixedCompilationDatabase> Database(
+ FixedCompilationDatabase::loadFromCommandLine(Argc, NULL));
+ EXPECT_FALSE(Database);
+ EXPECT_EQ(0, Argc);
+}
+
+TEST(ParseFixedCompilationDatabase, ReturnsNullWithoutDoubleDash) {
+ int Argc = 2;
+ const char *Argv[] = { "1", "2" };
+ llvm::OwningPtr<FixedCompilationDatabase> Database(
+ FixedCompilationDatabase::loadFromCommandLine(Argc, Argv));
+ EXPECT_FALSE(Database);
+ EXPECT_EQ(2, Argc);
+}
+
+TEST(ParseFixedCompilationDatabase, ReturnsArgumentsAfterDoubleDash) {
+ int Argc = 5;
+ const char *Argv[] = { "1", "2", "--\0no-constant-folding", "3", "4" };
+ llvm::OwningPtr<FixedCompilationDatabase> Database(
+ FixedCompilationDatabase::loadFromCommandLine(Argc, Argv));
+ ASSERT_TRUE(Database);
+ std::vector<CompileCommand> Result =
+ Database->getCompileCommands("source");
+ ASSERT_EQ(1ul, Result.size());
+ ASSERT_EQ(".", Result[0].Directory);
+ std::vector<std::string> CommandLine;
+ CommandLine.push_back("clang-tool");
+ CommandLine.push_back("3");
+ CommandLine.push_back("4");
+ CommandLine.push_back("source");
+ ASSERT_EQ(CommandLine, Result[0].CommandLine);
+ EXPECT_EQ(2, Argc);
+}
+
+TEST(ParseFixedCompilationDatabase, ReturnsEmptyCommandLine) {
+ int Argc = 3;
+ const char *Argv[] = { "1", "2", "--\0no-constant-folding" };
+ llvm::OwningPtr<FixedCompilationDatabase> Database(
+ FixedCompilationDatabase::loadFromCommandLine(Argc, Argv));
+ ASSERT_TRUE(Database);
+ std::vector<CompileCommand> Result =
+ Database->getCompileCommands("source");
+ ASSERT_EQ(1ul, Result.size());
+ ASSERT_EQ(".", Result[0].Directory);
+ std::vector<std::string> CommandLine;
+ CommandLine.push_back("clang-tool");
+ CommandLine.push_back("source");
+ ASSERT_EQ(CommandLine, Result[0].CommandLine);
+ EXPECT_EQ(2, Argc);
+}
+
+} // end namespace tooling
+} // end namespace clang
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