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//
// Copyright 2015-2016 gRPC authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
#include "src/core/util/json/json.h"
#include <string.h>
#include <map>
#include <string>
#include <utility>
#include "absl/log/log.h"
#include "absl/status/status.h"
#include "absl/status/statusor.h"
#include "absl/strings/match.h"
#include "absl/strings/str_cat.h"
#include "gmock/gmock.h"
#include "gtest/gtest.h"
#include "src/core/util/json/json_reader.h"
#include "src/core/util/json/json_writer.h"
#include "test/core/test_util/test_config.h"
namespace grpc_core {
void ValidateValue(const Json& actual, const Json& expected);
void ValidateObject(const Json::Object& actual, const Json::Object& expected) {
ASSERT_EQ(actual.size(), expected.size());
auto actual_it = actual.begin();
for (const auto& p : expected) {
EXPECT_EQ(actual_it->first, p.first);
ValidateValue(actual_it->second, p.second);
++actual_it;
}
}
void ValidateArray(const Json::Array& actual, const Json::Array& expected) {
ASSERT_EQ(actual.size(), expected.size());
for (size_t i = 0; i < expected.size(); ++i) {
ValidateValue(actual[i], expected[i]);
}
}
void ValidateValue(const Json& actual, const Json& expected) {
ASSERT_EQ(actual.type(), expected.type());
switch (expected.type()) {
case Json::Type::kNull:
break;
case Json::Type::kBoolean:
EXPECT_EQ(actual.boolean(), expected.boolean());
break;
case Json::Type::kString:
case Json::Type::kNumber:
EXPECT_EQ(actual.string(), expected.string());
break;
case Json::Type::kObject:
ValidateObject(actual.object(), expected.object());
break;
case Json::Type::kArray:
ValidateArray(actual.array(), expected.array());
break;
}
}
void RunSuccessTest(const char* input, const Json& expected,
const char* expected_output) {
LOG(INFO) << "parsing string \"" << input << "\" - should succeed";
auto json = JsonParse(input);
ASSERT_TRUE(json.ok()) << json.status();
ValidateValue(*json, expected);
std::string output = JsonDump(*json);
EXPECT_EQ(output, expected_output);
}
TEST(Json, Whitespace) {
RunSuccessTest(" 0 ", Json::FromNumber(0), "0");
RunSuccessTest(" 1 ", Json::FromNumber(1), "1");
RunSuccessTest(" \" \" ", Json::FromString(" "), "\" \"");
RunSuccessTest(" \"a\" ", Json::FromString("a"), "\"a\"");
RunSuccessTest(" true ", Json::FromBool(true), "true");
}
TEST(Json, Utf16) {
RunSuccessTest("\"\\u0020\\\\\\u0010\\u000a\\u000D\"",
Json::FromString(" \\\u0010\n\r"), "\" \\\\\\u0010\\n\\r\"");
}
MATCHER(ContainsInvalidUtf8,
absl::StrCat(negation ? "Contains" : "Does not contain",
" invalid UTF-8 characters.")) {
auto json = JsonParse(arg);
return json.status().code() == absl::StatusCode::kInvalidArgument &&
absl::StrContains(json.status().message(), "JSON parsing failed");
}
TEST(Json, Utf8) {
RunSuccessTest("\"ßâñć௵⇒\"", Json::FromString("ßâñć௵⇒"),
"\"\\u00df\\u00e2\\u00f1\\u0107\\u0bf5\\u21d2\"");
RunSuccessTest("\"\\u00df\\u00e2\\u00f1\\u0107\\u0bf5\\u21d2\"",
Json::FromString("ßâñć௵⇒"),
"\"\\u00df\\u00e2\\u00f1\\u0107\\u0bf5\\u21d2\"");
// Testing UTF-8 character "𝄞", U+11D1E.
RunSuccessTest("\"\xf0\x9d\x84\x9e\"", Json::FromString("\xf0\x9d\x84\x9e"),
"\"\\ud834\\udd1e\"");
RunSuccessTest("\"\\ud834\\udd1e\"", Json::FromString("\xf0\x9d\x84\x9e"),
"\"\\ud834\\udd1e\"");
RunSuccessTest("{\"\\ud834\\udd1e\":0}",
Json::FromObject({{"\xf0\x9d\x84\x9e", Json::FromNumber(0)}}),
"{\"\\ud834\\udd1e\":0}");
/// For UTF-8 characters with length of 1 byte, the range of it is [0x00,
/// 0x7f].
EXPECT_THAT("\"\xa0\"", ContainsInvalidUtf8());
/// For UTF-8 characters with length of 2 bytes, the range of the first byte
/// is [0xc2, 0xdf], and the range of the second byte is [0x80, 0xbf].
EXPECT_THAT("\"\xc0\xbc\"", ContainsInvalidUtf8());
EXPECT_THAT("\"\xbc\xc0\"", ContainsInvalidUtf8());
/// Corner cases for UTF-8 characters with length of 3 bytes.
/// If the first byte is 0xe0, the range of second byte is [0xa0, 0xbf].
EXPECT_THAT("\"\xe0\x80\x80\"", ContainsInvalidUtf8());
/// If the first byte is 0xed, the range of second byte is [0x80, 0x9f].
EXPECT_THAT("\"\xed\xa0\x80\"", ContainsInvalidUtf8());
/// Corner cases for UTF-8 characters with length of 4 bytes.
/// If the first byte is 0xf0, the range of second byte is [0x90, 0xbf].
EXPECT_THAT("\"\xf0\x80\x80\x80\"", ContainsInvalidUtf8());
/// If the first byte is 0xf4, the range of second byte is [0x80, 0x8f].
EXPECT_THAT("\"\xf4\x90\x80\x80\"", ContainsInvalidUtf8());
/// The range of the first bytes is [0xf0, 0xf4].
EXPECT_THAT("\"\xf5\x80\x80\x80\"", ContainsInvalidUtf8());
}
TEST(Json, NestedEmptyContainers) {
RunSuccessTest(" [ [ ] , { } , [ ] ] ",
Json::FromArray({
Json::FromArray({}),
Json::FromObject({}),
Json::FromArray({}),
}),
"[[],{},[]]");
}
TEST(Json, EscapesAndControlCharactersInKeyStrings) {
RunSuccessTest(" { \"\\u007f\x7f\\n\\r\\\"\\f\\b\\\\a , b\": 1, \"\": 0 } ",
Json::FromObject({
{"\u007f\u007f\n\r\"\f\b\\a , b", Json::FromNumber(1)},
{"", Json::FromNumber(0)},
}),
"{\"\":0,\"\\u007f\\u007f\\n\\r\\\"\\f\\b\\\\a , b\":1}");
}
TEST(Json, WriterCutsOffInvalidUtf8) {
EXPECT_EQ(JsonDump(Json::FromString("abc\xf0\x9d\x24")), "\"abc\"");
EXPECT_EQ(JsonDump(Json::FromString("\xff")), "\"\"");
}
TEST(Json, ValidNumbers) {
RunSuccessTest("[0, 42 , 0.0123, 123.456]",
Json::FromArray({
Json::FromNumber(0),
Json::FromNumber(42),
Json::FromNumber("0.0123"),
Json::FromNumber("123.456"),
}),
"[0,42,0.0123,123.456]");
RunSuccessTest("[1e4,-53.235e-31, 0.3e+3]",
Json::FromArray({
Json::FromNumber("1e4"),
Json::FromNumber("-53.235e-31"),
Json::FromNumber("0.3e+3"),
}),
"[1e4,-53.235e-31,0.3e+3]");
}
TEST(Json, Keywords) {
RunSuccessTest("[true, false, null]",
Json::FromArray({
Json::FromBool(true),
Json::FromBool(false),
Json(),
}),
"[true,false,null]");
}
void RunParseFailureTest(const char* input) {
LOG(INFO) << "parsing string \"" << input << "\" - should fail";
auto json = JsonParse(input);
EXPECT_FALSE(json.ok()) << "input: \"" << input << "\"";
}
TEST(Json, InvalidInput) {
RunParseFailureTest("\\");
RunParseFailureTest("nu ll");
RunParseFailureTest("{\"foo\": bar}");
RunParseFailureTest("{\"foo\": bar\"x\"}");
RunParseFailureTest("fals");
RunParseFailureTest("0,0 ");
RunParseFailureTest("\"foo\",[]");
RunParseFailureTest("{\"field\": {},}");
RunParseFailureTest("[{},]");
RunParseFailureTest("{\"field\": [],}");
RunParseFailureTest("[[],]");
}
TEST(Json, UnterminatedString) { RunParseFailureTest("\"\\x"); }
TEST(Json, InvalidUtf16) {
RunParseFailureTest("\"\\u123x");
RunParseFailureTest("{\"\\u123x");
}
TEST(Json, ImbalancedSurrogatePairs) {
RunParseFailureTest("\"\\ud834f");
RunParseFailureTest("{\"\\ud834f\":0}");
RunParseFailureTest("\"\\ud834\\n");
RunParseFailureTest("{\"\\ud834\\n\":0}");
RunParseFailureTest("\"\\udd1ef");
RunParseFailureTest("{\"\\udd1ef\":0}");
RunParseFailureTest("\"\\ud834\\ud834\"");
RunParseFailureTest("{\"\\ud834\\ud834\"\":0}");
RunParseFailureTest("\"\\ud834\\u1234\"");
RunParseFailureTest("{\"\\ud834\\u1234\"\":0}");
RunParseFailureTest("\"\\ud834]\"");
RunParseFailureTest("{\"\\ud834]\"\":0}");
RunParseFailureTest("\"\\ud834 \"");
RunParseFailureTest("{\"\\ud834 \"\":0}");
RunParseFailureTest("\"\\ud834\\\\\"");
RunParseFailureTest("{\"\\ud834\\\\\"\":0}");
}
TEST(Json, EmbeddedInvalidWhitechars) {
RunParseFailureTest("\"\n\"");
RunParseFailureTest("\"\t\"");
}
TEST(Json, EmptyString) { RunParseFailureTest(""); }
TEST(Json, ExtraCharsAtEndOfParsing) {
RunParseFailureTest("{},");
RunParseFailureTest("{}x");
}
TEST(Json, ImbalancedContainers) {
RunParseFailureTest("{}}");
RunParseFailureTest("[]]");
RunParseFailureTest("{{}");
RunParseFailureTest("[[]");
RunParseFailureTest("[}");
RunParseFailureTest("{]");
}
TEST(Json, BadContainers) {
RunParseFailureTest("{x}");
RunParseFailureTest("{x=0,y}");
}
TEST(Json, DuplicateObjectKeys) { RunParseFailureTest("{\"x\": 1, \"x\": 1}"); }
TEST(Json, TrailingComma) {
RunParseFailureTest("{,}");
RunParseFailureTest("[1,2,3,4,]");
RunParseFailureTest("{\"a\": 1, }");
}
TEST(Json, KeySyntaxInArray) { RunParseFailureTest("[\"x\":0]"); }
TEST(Json, InvalidNumbers) {
RunParseFailureTest("1.");
RunParseFailureTest("1e");
RunParseFailureTest(".12");
RunParseFailureTest("1.x");
RunParseFailureTest("1.12x");
RunParseFailureTest("1ex");
RunParseFailureTest("1e12x");
RunParseFailureTest(".12x");
RunParseFailureTest("000");
};
TEST(Json, Equality) {
// Null.
EXPECT_EQ(Json(), Json());
// Numbers.
EXPECT_EQ(Json::FromNumber(1), Json::FromNumber(1));
EXPECT_NE(Json::FromNumber(1), Json::FromNumber(2));
EXPECT_EQ(Json::FromNumber(1), Json::FromNumber("1"));
EXPECT_EQ(Json::FromNumber("-5e5"), Json::FromNumber("-5e5"));
// Booleans.
EXPECT_EQ(Json::FromBool(true), Json::FromBool(true));
EXPECT_EQ(Json::FromBool(false), Json::FromBool(false));
EXPECT_NE(Json::FromBool(true), Json::FromBool(false));
// Strings.
EXPECT_EQ(Json::FromString("foo"), Json::FromString("foo"));
EXPECT_NE(Json::FromString("foo"), Json::FromString("bar"));
// Arrays.
EXPECT_EQ(Json::FromArray({Json::FromString("foo")}),
Json::FromArray({Json::FromString("foo")}));
EXPECT_NE(Json::FromArray({Json::FromString("foo")}),
Json::FromArray({Json::FromString("bar")}));
// Objects.
EXPECT_EQ(Json::FromObject({{"foo", Json::FromNumber(1)}}),
Json::FromObject({{"foo", Json::FromNumber(1)}}));
EXPECT_NE(Json::FromObject({{"foo", Json::FromNumber(1)}}),
Json::FromObject({{"foo", Json::FromNumber(2)}}));
EXPECT_NE(Json::FromObject({{"foo", Json::FromNumber(1)}}),
Json::FromObject({{"bar", Json::FromNumber(1)}}));
// Differing types.
EXPECT_NE(Json::FromNumber(1), Json::FromString("foo"));
EXPECT_NE(Json::FromNumber(1), Json::FromBool(true));
EXPECT_NE(Json::FromNumber(1), Json::FromArray({}));
EXPECT_NE(Json::FromNumber(1), Json::FromObject({}));
EXPECT_NE(Json::FromNumber(1), Json());
}
} // namespace grpc_core
int main(int argc, char** argv) {
grpc::testing::TestEnvironment env(&argc, argv);
::testing::InitGoogleTest(&argc, argv);
return RUN_ALL_TESTS();
}