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//===- unittest/Tooling/JsonCompileCommandLineDatabaseTest ----------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "../../lib/Tooling/JsonCompileCommandLineDatabase.h"
#include "gtest/gtest.h"
namespace clang {
namespace tooling {
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(JsonCompileCommandLineParser, FailsOnEmptyString) {
JsonCompileCommandLineParser Parser("", NULL);
EXPECT_FALSE(Parser.Parse()) << Parser.GetErrorMessage();
}
TEST(JsonCompileCommandLineParser, DoesNotReadAfterInput) {
JsonCompileCommandLineParser Parser(llvm::StringRef(NULL, 0), NULL);
EXPECT_FALSE(Parser.Parse()) << Parser.GetErrorMessage();
}
TEST(JsonCompileCommandLineParser, ParsesEmptyArray) {
JsonCompileCommandLineParser Parser("[]", NULL);
EXPECT_TRUE(Parser.Parse()) << Parser.GetErrorMessage();
}
TEST(JsonCompileCommandLineParser, FailsIfNotClosingArray) {
JsonCompileCommandLineParser JustOpening("[", NULL);
EXPECT_FALSE(JustOpening.Parse()) << JustOpening.GetErrorMessage();
JsonCompileCommandLineParser WithSpaces(" [ ", NULL);
EXPECT_FALSE(WithSpaces.Parse()) << WithSpaces.GetErrorMessage();
JsonCompileCommandLineParser WithGarbage(" [x", NULL);
EXPECT_FALSE(WithGarbage.Parse()) << WithGarbage.GetErrorMessage();
}
TEST(JsonCompileCommandLineParser, ParsesEmptyArrayWithWhitespace) {
JsonCompileCommandLineParser Spaces(" [ ] ", NULL);
EXPECT_TRUE(Spaces.Parse()) << Spaces.GetErrorMessage();
JsonCompileCommandLineParser AllWhites("\t\r\n[\t\n \t\r ]\t\r \n\n", NULL);
EXPECT_TRUE(AllWhites.Parse()) << AllWhites.GetErrorMessage();
}
TEST(JsonCompileCommandLineParser, FailsIfNotStartingArray) {
JsonCompileCommandLineParser ObjectStart("{", NULL);
EXPECT_FALSE(ObjectStart.Parse()) << ObjectStart.GetErrorMessage();
// We don't implement a full JSON parser, and thus parse only a subset
// of valid JSON.
JsonCompileCommandLineParser Object("{}", NULL);
EXPECT_FALSE(Object.Parse()) << Object.GetErrorMessage();
JsonCompileCommandLineParser Character("x", NULL);
EXPECT_FALSE(Character.Parse()) << Character.GetErrorMessage();
}
TEST(JsonCompileCommandLineParser, ParsesEmptyObject) {
JsonCompileCommandLineParser Parser("[{}]", NULL);
EXPECT_TRUE(Parser.Parse()) << Parser.GetErrorMessage();
}
TEST(JsonCompileCommandLineParser, ParsesObject) {
JsonCompileCommandLineParser Parser("[{\"a\":\"/b\"}]", NULL);
EXPECT_TRUE(Parser.Parse()) << Parser.GetErrorMessage();
}
TEST(JsonCompileCommandLineParser, ParsesMultipleKeyValuePairsInObject) {
JsonCompileCommandLineParser Parser(
"[{\"a\":\"/b\",\"c\":\"d\",\"e\":\"f\"}]", NULL);
EXPECT_TRUE(Parser.Parse()) << Parser.GetErrorMessage();
}
TEST(JsonCompileCommandLineParser, FailsIfNotClosingObject) {
JsonCompileCommandLineParser MissingCloseOnEmpty("[{]", NULL);
EXPECT_FALSE(MissingCloseOnEmpty.Parse())
<< MissingCloseOnEmpty.GetErrorMessage();
JsonCompileCommandLineParser MissingCloseAfterPair("[{\"a\":\"b\"]", NULL);
EXPECT_FALSE(MissingCloseAfterPair.Parse())
<< MissingCloseAfterPair.GetErrorMessage();
}
TEST(JsonCompileCommandLineParser, FailsIfMissingColon) {
JsonCompileCommandLineParser StringString("[{\"a\"\"/b\"}]", NULL);
EXPECT_FALSE(StringString.Parse()) << StringString.GetErrorMessage();
JsonCompileCommandLineParser StringSpaceString("[{\"a\" \"b\"}]", NULL);
EXPECT_FALSE(StringSpaceString.Parse())
<< StringSpaceString.GetErrorMessage();
}
TEST(JsonCompileCommandLineParser, FailsOnMissingQuote) {
JsonCompileCommandLineParser OpenQuote("[{a\":\"b\"}]", NULL);
EXPECT_FALSE(OpenQuote.Parse()) << OpenQuote.GetErrorMessage();
JsonCompileCommandLineParser CloseQuote("[{\"a\":\"b}]", NULL);
EXPECT_FALSE(CloseQuote.Parse()) << CloseQuote.GetErrorMessage();
}
TEST(JsonCompileCommandLineParser, ParsesEscapedQuotes) {
JsonCompileCommandLineParser Parser(
"[{\"a\":\"\\\"b\\\" \\\" \\\"\"}]", NULL);
EXPECT_TRUE(Parser.Parse()) << Parser.GetErrorMessage();
}
TEST(JsonCompileCommandLineParser, ParsesEmptyString) {
JsonCompileCommandLineParser Parser("[{\"a\":\"\"}]", NULL);
EXPECT_TRUE(Parser.Parse()) << Parser.GetErrorMessage();
}
TEST(JsonCompileCommandLineParser, FailsOnMissingString) {
JsonCompileCommandLineParser MissingValue("[{\"a\":}]", NULL);
EXPECT_FALSE(MissingValue.Parse()) << MissingValue.GetErrorMessage();
JsonCompileCommandLineParser MissingKey("[{:\"b\"}]", NULL);
EXPECT_FALSE(MissingKey.Parse()) << MissingKey.GetErrorMessage();
}
TEST(JsonCompileCommandLineParser, ParsesMultipleObjects) {
JsonCompileCommandLineParser Parser(
"["
" { \"a\" : \"b\" },"
" { \"a\" : \"b\" },"
" { \"a\" : \"b\" }"
"]", NULL);
EXPECT_TRUE(Parser.Parse()) << Parser.GetErrorMessage();
}
TEST(JsonCompileCommandLineParser, FailsOnMissingComma) {
JsonCompileCommandLineParser Parser(
"["
" { \"a\" : \"b\" }"
" { \"a\" : \"b\" }"
"]", NULL);
EXPECT_FALSE(Parser.Parse()) << Parser.GetErrorMessage();
}
TEST(JsonCompileCommandLineParser, FailsOnSuperfluousComma) {
JsonCompileCommandLineParser Parser(
"[ { \"a\" : \"b\" }, ]", NULL);
EXPECT_FALSE(Parser.Parse()) << Parser.GetErrorMessage();
}
TEST(JsonCompileCommandLineParser, ParsesSpacesInBetweenTokens) {
JsonCompileCommandLineParser Parser(
" \t \n\n \r [ \t \n\n \r"
" \t \n\n \r { \t \n\n \r\"a\"\t \n\n \r :"
" \t \n\n \r \"b\"\t \n\n \r } \t \n\n \r,\t \n\n \r"
" \t \n\n \r { \t \n\n \r\"a\"\t \n\n \r :"
" \t \n\n \r \"b\"\t \n\n \r } \t \n\n \r]\t \n\n \r",
NULL);
EXPECT_TRUE(Parser.Parse()) << Parser.GetErrorMessage();
}
} // end namespace tooling
} // end namespace clang
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