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// Copyright 2020 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "util/json/json_helpers.h"
#include "gmock/gmock.h"
#include "gtest/gtest.h"
#include "util/chrono_helpers.h"
namespace openscreen {
namespace json {
namespace {
using ::testing::ElementsAre;
const Json::Value kNone;
const Json::Value kEmptyString = "";
const Json::Value kEmptyArray(Json::arrayValue);
struct Dummy {
int value;
constexpr bool operator==(const Dummy& other) const {
return other.value == value;
}
};
bool TryParseDummy(const Json::Value& value, Dummy* out) {
int value_out;
if (!TryParseInt(value, &value_out)) {
return false;
}
*out = Dummy{value_out};
return true;
}
} // namespace
TEST(ParsingHelpersTest, TryParseDouble) {
const Json::Value kValid = 13.37;
const Json::Value kNotDouble = "coffee beans";
const Json::Value kNegativeDouble = -4.2;
const Json::Value kZeroDouble = 0.0;
const Json::Value kNanDouble = std::nan("");
double out;
EXPECT_TRUE(TryParseDouble(kValid, &out));
EXPECT_DOUBLE_EQ(13.37, out);
EXPECT_TRUE(TryParseDouble(kZeroDouble, &out));
EXPECT_DOUBLE_EQ(0.0, out);
EXPECT_FALSE(TryParseDouble(kNotDouble, &out));
EXPECT_FALSE(TryParseDouble(kNegativeDouble, &out));
EXPECT_FALSE(TryParseDouble(kNone, &out));
EXPECT_FALSE(TryParseDouble(kNanDouble, &out));
}
TEST(ParsingHelpersTest, TryParseInt) {
const Json::Value kValid = 1337;
const Json::Value kNotInt = "cold brew";
const Json::Value kNegativeInt = -42;
const Json::Value kZeroInt = 0;
int out;
EXPECT_TRUE(TryParseInt(kValid, &out));
EXPECT_EQ(1337, out);
EXPECT_TRUE(TryParseInt(kZeroInt, &out));
EXPECT_EQ(0, out);
EXPECT_FALSE(TryParseInt(kNone, &out));
EXPECT_FALSE(TryParseInt(kNotInt, &out));
EXPECT_FALSE(TryParseInt(kNegativeInt, &out));
}
TEST(ParsingHelpersTest, TryParseUint) {
const Json::Value kValid = 1337u;
const Json::Value kNotUint = "espresso";
const Json::Value kZeroUint = 0u;
uint32_t out;
EXPECT_TRUE(TryParseUint(kValid, &out));
EXPECT_EQ(1337u, out);
EXPECT_TRUE(TryParseUint(kZeroUint, &out));
EXPECT_EQ(0u, out);
EXPECT_FALSE(TryParseUint(kNone, &out));
EXPECT_FALSE(TryParseUint(kNotUint, &out));
}
TEST(ParsingHelpersTest, TryParseString) {
const Json::Value kValid = "macchiato";
const Json::Value kNotString = 42;
std::string out;
EXPECT_TRUE(TryParseString(kValid, &out));
EXPECT_EQ("macchiato", out);
EXPECT_TRUE(TryParseString(kEmptyString, &out));
EXPECT_EQ("", out);
EXPECT_FALSE(TryParseString(kNone, &out));
EXPECT_FALSE(TryParseString(kNotString, &out));
}
// Simple fraction validity is tested extensively in its unit tests, so we
// just check the major cases here.
TEST(ParsingHelpersTest, TryParseSimpleFraction) {
const Json::Value kValid = "42/30";
const Json::Value kValidNumber = "42";
const Json::Value kUndefined = "5/0";
const Json::Value kNegative = "10/-2";
const Json::Value kInvalidNumber = "-1";
const Json::Value kNotSimpleFraction = "latte";
const Json::Value kInteger = 123;
const Json::Value kNegativeInteger = -5000;
SimpleFraction out;
EXPECT_TRUE(TryParseSimpleFraction(kValid, &out));
EXPECT_EQ((SimpleFraction{42, 30}), out);
EXPECT_TRUE(TryParseSimpleFraction(kValidNumber, &out));
EXPECT_EQ((SimpleFraction{42, 1}), out);
EXPECT_TRUE(TryParseSimpleFraction(kInteger, &out));
EXPECT_EQ((SimpleFraction{123, 1}), out);
EXPECT_FALSE(TryParseSimpleFraction(kUndefined, &out));
EXPECT_FALSE(TryParseSimpleFraction(kNegative, &out));
EXPECT_FALSE(TryParseSimpleFraction(kInvalidNumber, &out));
EXPECT_FALSE(TryParseSimpleFraction(kNotSimpleFraction, &out));
EXPECT_FALSE(TryParseSimpleFraction(kNone, &out));
EXPECT_FALSE(TryParseSimpleFraction(kEmptyString, &out));
EXPECT_FALSE(TryParseSimpleFraction(kNegativeInteger, &out));
}
TEST(ParsingHelpersTest, TryParseMilliseconds) {
const Json::Value kValid = 1000;
const Json::Value kValidFloat = 500.0;
const Json::Value kNegativeNumber = -120;
const Json::Value kZeroNumber = 0;
const Json::Value kNotNumber = "affogato";
milliseconds out;
EXPECT_TRUE(TryParseMilliseconds(kValid, &out));
EXPECT_EQ(milliseconds(1000), out);
EXPECT_TRUE(TryParseMilliseconds(kValidFloat, &out));
EXPECT_EQ(milliseconds(500), out);
EXPECT_TRUE(TryParseMilliseconds(kZeroNumber, &out));
EXPECT_EQ(milliseconds(0), out);
EXPECT_FALSE(TryParseMilliseconds(kNone, &out));
EXPECT_FALSE(TryParseMilliseconds(kNegativeNumber, &out));
EXPECT_FALSE(TryParseMilliseconds(kNotNumber, &out));
}
TEST(ParsingHelpersTest, TryParseArray) {
Json::Value valid_dummy_array;
valid_dummy_array[0] = 123;
valid_dummy_array[1] = 456;
Json::Value invalid_dummy_array;
invalid_dummy_array[0] = "iced coffee";
invalid_dummy_array[1] = 456;
std::vector<Dummy> out;
EXPECT_TRUE(TryParseArray<Dummy>(valid_dummy_array, TryParseDummy, &out));
EXPECT_THAT(out, ElementsAre(Dummy{123}, Dummy{456}));
EXPECT_FALSE(TryParseArray<Dummy>(invalid_dummy_array, TryParseDummy, &out));
EXPECT_FALSE(TryParseArray<Dummy>(kEmptyArray, TryParseDummy, &out));
}
TEST(ParsingHelpersTest, TryParseIntArray) {
Json::Value valid_int_array;
valid_int_array[0] = 123;
valid_int_array[1] = 456;
Json::Value invalid_int_array;
invalid_int_array[0] = "iced coffee";
invalid_int_array[1] = 456;
std::vector<int> out;
EXPECT_TRUE(TryParseIntArray(valid_int_array, &out));
EXPECT_THAT(out, ElementsAre(123, 456));
EXPECT_FALSE(TryParseIntArray(invalid_int_array, &out));
EXPECT_FALSE(TryParseIntArray(kEmptyArray, &out));
}
TEST(ParsingHelpersTest, TryParseUintArray) {
Json::Value valid_uint_array;
valid_uint_array[0] = 123u;
valid_uint_array[1] = 456u;
Json::Value invalid_uint_array;
invalid_uint_array[0] = "breve";
invalid_uint_array[1] = 456u;
std::vector<uint32_t> out;
EXPECT_TRUE(TryParseUintArray(valid_uint_array, &out));
EXPECT_THAT(out, ElementsAre(123u, 456u));
EXPECT_FALSE(TryParseUintArray(invalid_uint_array, &out));
EXPECT_FALSE(TryParseUintArray(kEmptyArray, &out));
}
TEST(ParsingHelpersTest, TryParseStringArray) {
Json::Value valid_string_array;
valid_string_array[0] = "nitro cold brew";
valid_string_array[1] = "doppio espresso";
Json::Value invalid_string_array;
invalid_string_array[0] = "mocha latte";
invalid_string_array[1] = 456;
std::vector<std::string> out;
EXPECT_TRUE(TryParseStringArray(valid_string_array, &out));
EXPECT_THAT(out, ElementsAre("nitro cold brew", "doppio espresso"));
EXPECT_FALSE(TryParseStringArray(invalid_string_array, &out));
EXPECT_FALSE(TryParseStringArray(kEmptyArray, &out));
}
} // namespace json
} // namespace openscreen
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