mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-09-01 19:29:22 +00:00
Diagnostics are now emitted via the SourceMgr and we use MemoryBuffer for buffer management. Switched the code to make use of the trailing '0' that MemoryBuffer guarantees where it makes sense. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147063 91177308-0d34-0410-b5e6-96231b3b80d8
192 lines
6.1 KiB
C++
192 lines
6.1 KiB
C++
//===- unittest/Tooling/JSONParserTest ------------------------------------===//
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file is distributed under the University of Illinois Open Source
|
|
// License. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#include "llvm/Support/Casting.h"
|
|
#include "llvm/Support/JSONParser.h"
|
|
#include "llvm/ADT/Twine.h"
|
|
#include "gtest/gtest.h"
|
|
|
|
namespace llvm {
|
|
|
|
// Checks that the given input gives a parse error. Makes sure that an error
|
|
// text is available and the parse fails.
|
|
static void ExpectParseError(StringRef Message, StringRef Input) {
|
|
SourceMgr SM;
|
|
JSONParser Parser(Input, &SM);
|
|
EXPECT_FALSE(Parser.validate()) << Message << ": " << Input;
|
|
EXPECT_TRUE(Parser.failed()) << Message << ": " << Input;
|
|
}
|
|
|
|
// Checks that the given input can be parsed without error.
|
|
static void ExpectParseSuccess(StringRef Message, StringRef Input) {
|
|
SourceMgr SM;
|
|
JSONParser Parser(Input, &SM);
|
|
EXPECT_TRUE(Parser.validate()) << Message << ": " << Input;
|
|
}
|
|
|
|
TEST(JSONParser, FailsOnEmptyString) {
|
|
ExpectParseError("Empty JSON text", "");
|
|
}
|
|
|
|
TEST(JSONParser, FailsIfStartsWithString) {
|
|
ExpectParseError("Top-level string", "\"x\"");
|
|
}
|
|
|
|
TEST(JSONParser, ParsesEmptyArray) {
|
|
ExpectParseSuccess("Empty array", "[]");
|
|
}
|
|
|
|
TEST(JSONParser, FailsIfNotClosingArray) {
|
|
ExpectParseError("Not closing array", "[");
|
|
ExpectParseError("Not closing array", " [ ");
|
|
ExpectParseError("Not closing array", " [x");
|
|
}
|
|
|
|
TEST(JSONParser, ParsesEmptyArrayWithWhitespace) {
|
|
ExpectParseSuccess("Array with spaces", " [ ] ");
|
|
ExpectParseSuccess("All whitespaces", "\t\r\n[\t\n \t\r ]\t\r \n\n");
|
|
}
|
|
|
|
TEST(JSONParser, ParsesEmptyObject) {
|
|
ExpectParseSuccess("Empty object", "[{}]");
|
|
}
|
|
|
|
TEST(JSONParser, ParsesObject) {
|
|
ExpectParseSuccess("Object with an entry", "[{\"a\":\"/b\"}]");
|
|
}
|
|
|
|
TEST(JSONParser, ParsesMultipleKeyValuePairsInObject) {
|
|
ExpectParseSuccess("Multiple key, value pairs",
|
|
"[{\"a\":\"/b\",\"c\":\"d\",\"e\":\"f\"}]");
|
|
}
|
|
|
|
TEST(JSONParser, FailsIfNotClosingObject) {
|
|
ExpectParseError("Missing close on empty", "[{]");
|
|
ExpectParseError("Missing close after pair", "[{\"a\":\"b\"]");
|
|
}
|
|
|
|
TEST(JSONParser, FailsIfMissingColon) {
|
|
ExpectParseError("Missing colon between key and value", "[{\"a\"\"/b\"}]");
|
|
ExpectParseError("Missing colon between key and value", "[{\"a\" \"b\"}]");
|
|
}
|
|
|
|
TEST(JSONParser, FailsOnMissingQuote) {
|
|
ExpectParseError("Missing open quote", "[{a\":\"b\"}]");
|
|
ExpectParseError("Missing closing quote", "[{\"a\":\"b}]");
|
|
}
|
|
|
|
TEST(JSONParser, ParsesEscapedQuotes) {
|
|
ExpectParseSuccess("Parses escaped string in key and value",
|
|
"[{\"a\":\"\\\"b\\\" \\\" \\\"\"}]");
|
|
}
|
|
|
|
TEST(JSONParser, ParsesEmptyString) {
|
|
ExpectParseSuccess("Parses empty string in value", "[{\"a\":\"\"}]");
|
|
}
|
|
|
|
TEST(JSONParser, FailsOnMissingString) {
|
|
ExpectParseError("Missing value", "[{\"a\":}]");
|
|
ExpectParseError("Missing key", "[{:\"b\"}]");
|
|
}
|
|
|
|
TEST(JSONParser, ParsesMultipleObjects) {
|
|
ExpectParseSuccess(
|
|
"Multiple objects in array",
|
|
"["
|
|
" { \"a\" : \"b\" },"
|
|
" { \"a\" : \"b\" },"
|
|
" { \"a\" : \"b\" }"
|
|
"]");
|
|
}
|
|
|
|
TEST(JSONParser, FailsOnMissingComma) {
|
|
ExpectParseError(
|
|
"Missing comma",
|
|
"["
|
|
" { \"a\" : \"b\" }"
|
|
" { \"a\" : \"b\" }"
|
|
"]");
|
|
}
|
|
|
|
TEST(JSONParser, FailsOnSuperfluousComma) {
|
|
ExpectParseError("Superfluous comma in array", "[ { \"a\" : \"b\" }, ]");
|
|
ExpectParseError("Superfluous comma in object", "{ \"a\" : \"b\", }");
|
|
}
|
|
|
|
TEST(JSONParser, ParsesSpacesInBetweenTokens) {
|
|
ExpectParseSuccess(
|
|
"Various whitespace between tokens",
|
|
" \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");
|
|
}
|
|
|
|
TEST(JSONParser, ParsesArrayOfArrays) {
|
|
ExpectParseSuccess("Array of arrays", "[[]]");
|
|
}
|
|
|
|
TEST(JSONParser, HandlesEndOfFileGracefully) {
|
|
ExpectParseError("In string starting with EOF", "[\"");
|
|
ExpectParseError("In string hitting EOF", "[\" ");
|
|
ExpectParseError("In string escaping EOF", "[\" \\");
|
|
ExpectParseError("In array starting with EOF", "[");
|
|
ExpectParseError("In array element starting with EOF", "[[], ");
|
|
ExpectParseError("In array hitting EOF", "[[] ");
|
|
ExpectParseError("In array hitting EOF", "[[]");
|
|
ExpectParseError("In object hitting EOF", "{\"\"");
|
|
}
|
|
|
|
// Checks that the given string can be parsed into an identical string inside
|
|
// of an array.
|
|
static void ExpectCanParseString(StringRef String) {
|
|
std::string StringInArray = (llvm::Twine("[\"") + String + "\"]").str();
|
|
SourceMgr SM;
|
|
JSONParser Parser(StringInArray, &SM);
|
|
const JSONArray *ParsedArray = dyn_cast<JSONArray>(Parser.parseRoot());
|
|
StringRef ParsedString =
|
|
dyn_cast<JSONString>(*ParsedArray->begin())->getRawText();
|
|
EXPECT_EQ(String, ParsedString.str());
|
|
}
|
|
|
|
// Checks that parsing the given string inside an array fails.
|
|
static void ExpectCannotParseString(StringRef String) {
|
|
std::string StringInArray = (llvm::Twine("[\"") + String + "\"]").str();
|
|
ExpectParseError((Twine("When parsing string \"") + String + "\"").str(),
|
|
StringInArray);
|
|
}
|
|
|
|
TEST(JSONParser, ParsesStrings) {
|
|
ExpectCanParseString("");
|
|
ExpectCannotParseString("\\");
|
|
ExpectCannotParseString("\"");
|
|
ExpectCanParseString(" ");
|
|
ExpectCanParseString("\\ ");
|
|
ExpectCanParseString("\\\"");
|
|
ExpectCannotParseString("\"\\");
|
|
ExpectCannotParseString(" \\");
|
|
ExpectCanParseString("\\\\");
|
|
ExpectCannotParseString("\\\\\\");
|
|
ExpectCanParseString("\\\\\\\\");
|
|
ExpectCanParseString("\\\" ");
|
|
ExpectCannotParseString("\\\\\" ");
|
|
ExpectCanParseString("\\\\\\\" ");
|
|
ExpectCanParseString(" \\\\ \\\" \\\\\\\" ");
|
|
}
|
|
|
|
TEST(JSONParser, WorksWithIteratorAlgorithms) {
|
|
SourceMgr SM;
|
|
JSONParser Parser("[\"1\", \"2\", \"3\", \"4\", \"5\", \"6\"]", &SM);
|
|
const JSONArray *Array = dyn_cast<JSONArray>(Parser.parseRoot());
|
|
EXPECT_EQ(6, std::distance(Array->begin(), Array->end()));
|
|
}
|
|
|
|
} // end namespace llvm
|