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#include <functional>
#include <iostream>
#include <map>
#include <string>
#include <vector>
#include <cm/optional>
#include <cmext/string_view>
#include <cm3p/json/value.h>
#include "cmJSONHelpers.h"
#define ASSERT_TRUE(x) \
do { \
if (!(x)) { \
std::cout << "ASSERT_TRUE(" #x ") failed on line " << __LINE__ << "\n"; \
return false; \
} \
} while (false)
namespace {
struct ObjectStruct
{
std::string Field1;
int Field2;
};
struct InheritedStruct : public ObjectStruct
{
std::string Field3;
};
enum class ErrorCode
{
Success,
InvalidInt,
InvalidBool,
InvalidString,
InvalidSubObject,
InvalidObject,
InvalidArray,
MissingRequired,
};
using JSONHelperBuilder = cmJSONHelperBuilder<ErrorCode>;
auto const IntHelper =
JSONHelperBuilder::Int(ErrorCode::Success, ErrorCode::InvalidInt, 1);
auto const RequiredIntHelper =
JSONHelperBuilder::Required<int>(ErrorCode::MissingRequired, IntHelper);
auto const UIntHelper =
JSONHelperBuilder::UInt(ErrorCode::Success, ErrorCode::InvalidInt, 1);
auto const BoolHelper =
JSONHelperBuilder::Bool(ErrorCode::Success, ErrorCode::InvalidBool, false);
auto const StringHelper = JSONHelperBuilder::String(
ErrorCode::Success, ErrorCode::InvalidString, "default");
auto const RequiredStringHelper = JSONHelperBuilder::Required<std::string>(
ErrorCode::MissingRequired, StringHelper);
auto const StringVectorHelper = JSONHelperBuilder::Vector<std::string>(
ErrorCode::Success, ErrorCode::InvalidArray, StringHelper);
auto const StringVectorFilterHelper =
JSONHelperBuilder::VectorFilter<std::string>(
ErrorCode::Success, ErrorCode::InvalidArray, StringHelper,
[](const std::string& value) { return value != "ignore"; });
auto const StringMapHelper = JSONHelperBuilder::Map<std::string>(
ErrorCode::Success, ErrorCode::InvalidObject, StringHelper);
auto const StringMapFilterHelper = JSONHelperBuilder::MapFilter<std::string>(
ErrorCode::Success, ErrorCode::InvalidObject, StringHelper,
[](const std::string& key) { return key != "ignore"; });
auto const OptionalStringHelper =
JSONHelperBuilder::Optional<std::string>(ErrorCode::Success, StringHelper);
bool testInt()
{
Json::Value v(2);
int i = 0;
ASSERT_TRUE(IntHelper(i, &v) == ErrorCode::Success);
ASSERT_TRUE(i == 2);
i = 0;
v = Json::nullValue;
ASSERT_TRUE(IntHelper(i, &v) == ErrorCode::InvalidInt);
i = 0;
ASSERT_TRUE(IntHelper(i, nullptr) == ErrorCode::Success);
ASSERT_TRUE(i == 1);
return true;
}
bool testUInt()
{
Json::Value v(2);
unsigned int i = 0;
ASSERT_TRUE(UIntHelper(i, &v) == ErrorCode::Success);
ASSERT_TRUE(i == 2);
i = 0;
v = Json::nullValue;
ASSERT_TRUE(UIntHelper(i, &v) == ErrorCode::InvalidInt);
i = 0;
ASSERT_TRUE(UIntHelper(i, nullptr) == ErrorCode::Success);
ASSERT_TRUE(i == 1);
return true;
}
bool testBool()
{
Json::Value v(true);
bool b = false;
ASSERT_TRUE(BoolHelper(b, &v) == ErrorCode::Success);
ASSERT_TRUE(b);
b = false;
v = false;
ASSERT_TRUE(BoolHelper(b, &v) == ErrorCode::Success);
ASSERT_TRUE(!b);
b = false;
v = 4;
ASSERT_TRUE(BoolHelper(b, &v) == ErrorCode::InvalidBool);
b = true;
ASSERT_TRUE(BoolHelper(b, nullptr) == ErrorCode::Success);
ASSERT_TRUE(!b);
return true;
}
bool testString()
{
Json::Value v("str");
std::string str = "";
ASSERT_TRUE(StringHelper(str, &v) == ErrorCode::Success);
ASSERT_TRUE(str == "str");
str = "";
v = Json::nullValue;
ASSERT_TRUE(StringHelper(str, &v) == ErrorCode::InvalidString);
str = "";
ASSERT_TRUE(StringHelper(str, nullptr) == ErrorCode::Success);
ASSERT_TRUE(str == "default");
return true;
}
bool testObject()
{
auto const subhelper =
JSONHelperBuilder::Object<ObjectStruct>(ErrorCode::Success,
ErrorCode::InvalidSubObject)
.Bind("subfield"_s, &ObjectStruct::Field2, IntHelper);
auto const helper = JSONHelperBuilder::Object<ObjectStruct>(
ErrorCode::Success, ErrorCode::InvalidObject)
.Bind("field1"_s, &ObjectStruct::Field1, StringHelper)
.Bind("field2"_s, subhelper)
.Bind<std::string>("field3"_s, nullptr, StringHelper);
Json::Value v(Json::objectValue);
v["field1"] = "Hello";
v["field2"] = Json::objectValue;
v["field2"]["subfield"] = 2;
v["field3"] = "world!";
v["extra"] = "extra";
ObjectStruct s1;
ASSERT_TRUE(helper(s1, &v) == ErrorCode::Success);
ASSERT_TRUE(s1.Field1 == "Hello");
ASSERT_TRUE(s1.Field2 == 2);
v["field2"]["subfield"] = "wrong";
ObjectStruct s2;
ASSERT_TRUE(helper(s2, &v) == ErrorCode::InvalidInt);
v["field2"].removeMember("subfield");
ObjectStruct s3;
ASSERT_TRUE(helper(s3, &v) == ErrorCode::InvalidSubObject);
v.removeMember("field2");
ObjectStruct s4;
ASSERT_TRUE(helper(s4, &v) == ErrorCode::InvalidObject);
v["field2"] = Json::objectValue;
v["field2"]["subfield"] = 2;
v["field3"] = 3;
ObjectStruct s5;
ASSERT_TRUE(helper(s5, &v) == ErrorCode::InvalidString);
v.removeMember("field3");
ObjectStruct s6;
ASSERT_TRUE(helper(s6, &v) == ErrorCode::InvalidObject);
v = "Hello";
ObjectStruct s7;
ASSERT_TRUE(helper(s7, &v) == ErrorCode::InvalidObject);
ObjectStruct s8;
ASSERT_TRUE(helper(s8, nullptr) == ErrorCode::InvalidObject);
return true;
}
bool testObjectInherited()
{
auto const helper =
JSONHelperBuilder::Object<InheritedStruct>(ErrorCode::Success,
ErrorCode::InvalidObject)
.Bind("field1"_s, &InheritedStruct::Field1, StringHelper)
.Bind("field2"_s, &InheritedStruct::Field2, IntHelper)
.Bind("field3"_s, &InheritedStruct::Field3, StringHelper);
Json::Value v(Json::objectValue);
v["field1"] = "Hello";
v["field2"] = 2;
v["field3"] = "world!";
v["extra"] = "extra";
InheritedStruct s1;
ASSERT_TRUE(helper(s1, &v) == ErrorCode::Success);
ASSERT_TRUE(s1.Field1 == "Hello");
ASSERT_TRUE(s1.Field2 == 2);
ASSERT_TRUE(s1.Field3 == "world!");
v["field2"] = "wrong";
InheritedStruct s2;
ASSERT_TRUE(helper(s2, &v) == ErrorCode::InvalidInt);
v.removeMember("field2");
InheritedStruct s3;
ASSERT_TRUE(helper(s3, &v) == ErrorCode::InvalidObject);
v["field2"] = 2;
v["field3"] = 3;
InheritedStruct s4;
ASSERT_TRUE(helper(s4, &v) == ErrorCode::InvalidString);
v.removeMember("field3");
InheritedStruct s5;
ASSERT_TRUE(helper(s5, &v) == ErrorCode::InvalidObject);
v = "Hello";
InheritedStruct s6;
ASSERT_TRUE(helper(s6, &v) == ErrorCode::InvalidObject);
InheritedStruct s7;
ASSERT_TRUE(helper(s7, nullptr) == ErrorCode::InvalidObject);
return true;
}
bool testObjectNoExtra()
{
auto const helper = JSONHelperBuilder::Object<ObjectStruct>(
ErrorCode::Success, ErrorCode::InvalidObject, false)
.Bind("field1"_s, &ObjectStruct::Field1, StringHelper)
.Bind("field2"_s, &ObjectStruct::Field2, IntHelper);
Json::Value v(Json::objectValue);
v["field1"] = "Hello";
v["field2"] = 2;
ObjectStruct s1;
ASSERT_TRUE(helper(s1, &v) == ErrorCode::Success);
ASSERT_TRUE(s1.Field1 == "Hello");
ASSERT_TRUE(s1.Field2 == 2);
v["extra"] = "world!";
ObjectStruct s2;
ASSERT_TRUE(helper(s2, &v) == ErrorCode::InvalidObject);
return true;
}
bool testObjectOptional()
{
auto const helper =
JSONHelperBuilder::Object<ObjectStruct>(ErrorCode::Success,
ErrorCode::InvalidObject)
.Bind("field1"_s, &ObjectStruct::Field1, StringHelper, false)
.Bind("field2"_s, &ObjectStruct::Field2, IntHelper, false)
.Bind<std::string>("field3_s", nullptr, StringHelper, false);
Json::Value v(Json::objectValue);
v["field1"] = "Hello";
v["field2"] = 2;
v["field3"] = "world!";
v["extra"] = "extra";
ObjectStruct s1;
ASSERT_TRUE(helper(s1, &v) == ErrorCode::Success);
ASSERT_TRUE(s1.Field1 == "Hello");
ASSERT_TRUE(s1.Field2 == 2);
v = Json::objectValue;
ObjectStruct s2;
ASSERT_TRUE(helper(s2, &v) == ErrorCode::Success);
ASSERT_TRUE(s2.Field1 == "default");
ASSERT_TRUE(s2.Field2 == 1);
ObjectStruct s3;
ASSERT_TRUE(helper(s3, nullptr) == ErrorCode::Success);
ASSERT_TRUE(s3.Field1 == "default");
ASSERT_TRUE(s3.Field2 == 1);
return true;
}
bool testVector()
{
Json::Value v(Json::arrayValue);
v.append("Hello");
v.append("world!");
v.append("ignore");
std::vector<std::string> l{ "default" };
std::vector<std::string> expected{ "Hello", "world!", "ignore" };
ASSERT_TRUE(StringVectorHelper(l, &v) == ErrorCode::Success);
ASSERT_TRUE(l == expected);
v[1] = 2;
l = { "default" };
ASSERT_TRUE(StringVectorHelper(l, &v) == ErrorCode::InvalidString);
v = "Hello";
l = { "default" };
ASSERT_TRUE(StringVectorHelper(l, &v) == ErrorCode::InvalidArray);
l = { "default" };
ASSERT_TRUE(StringVectorHelper(l, nullptr) == ErrorCode::Success);
ASSERT_TRUE(l.empty());
return true;
}
bool testVectorFilter()
{
Json::Value v(Json::arrayValue);
v.append("Hello");
v.append("world!");
v.append("ignore");
std::vector<std::string> l{ "default" };
std::vector<std::string> expected{
"Hello",
"world!",
};
ASSERT_TRUE(StringVectorFilterHelper(l, &v) == ErrorCode::Success);
ASSERT_TRUE(l == expected);
v[1] = 2;
l = { "default" };
ASSERT_TRUE(StringVectorFilterHelper(l, &v) == ErrorCode::InvalidString);
v = "Hello";
l = { "default" };
ASSERT_TRUE(StringVectorFilterHelper(l, &v) == ErrorCode::InvalidArray);
l = { "default" };
ASSERT_TRUE(StringVectorFilterHelper(l, nullptr) == ErrorCode::Success);
ASSERT_TRUE(l.empty());
return true;
}
bool testMap()
{
Json::Value v(Json::objectValue);
v["field1"] = "Hello";
v["field2"] = "world!";
v["ignore"] = "ignore";
std::map<std::string, std::string> m{ { "key", "default" } };
std::map<std::string, std::string> expected{ { "field1", "Hello" },
{ "field2", "world!" },
{ "ignore", "ignore" } };
ASSERT_TRUE(StringMapHelper(m, &v) == ErrorCode::Success);
ASSERT_TRUE(m == expected);
v = Json::arrayValue;
m = { { "key", "default" } };
ASSERT_TRUE(StringMapHelper(m, &v) == ErrorCode::InvalidObject);
m = { { "key", "default" } };
ASSERT_TRUE(StringMapHelper(m, nullptr) == ErrorCode::Success);
ASSERT_TRUE(m.empty());
return true;
}
bool testMapFilter()
{
Json::Value v(Json::objectValue);
v["field1"] = "Hello";
v["field2"] = "world!";
v["ignore"] = "ignore";
std::map<std::string, std::string> m{ { "key", "default" } };
std::map<std::string, std::string> expected{ { "field1", "Hello" },
{ "field2", "world!" } };
ASSERT_TRUE(StringMapFilterHelper(m, &v) == ErrorCode::Success);
ASSERT_TRUE(m == expected);
v = Json::arrayValue;
m = { { "key", "default" } };
ASSERT_TRUE(StringMapFilterHelper(m, &v) == ErrorCode::InvalidObject);
m = { { "key", "default" } };
ASSERT_TRUE(StringMapFilterHelper(m, nullptr) == ErrorCode::Success);
ASSERT_TRUE(m.empty());
return true;
}
bool testOptional()
{
Json::Value v = "Hello";
cm::optional<std::string> str{ "default" };
ASSERT_TRUE(OptionalStringHelper(str, &v) == ErrorCode::Success);
ASSERT_TRUE(str == "Hello");
str.emplace("default");
ASSERT_TRUE(OptionalStringHelper(str, nullptr) == ErrorCode::Success);
ASSERT_TRUE(str == cm::nullopt);
return true;
}
bool testRequired()
{
Json::Value v = "Hello";
std::string str = "default";
int i = 1;
ASSERT_TRUE(RequiredStringHelper(str, &v) == ErrorCode::Success);
ASSERT_TRUE(str == "Hello");
ASSERT_TRUE(RequiredIntHelper(i, &v) == ErrorCode::InvalidInt);
v = 2;
str = "default";
i = 1;
ASSERT_TRUE(RequiredStringHelper(str, &v) == ErrorCode::InvalidString);
ASSERT_TRUE(RequiredIntHelper(i, &v) == ErrorCode::Success);
ASSERT_TRUE(i == 2);
str = "default";
i = 1;
ASSERT_TRUE(RequiredStringHelper(str, nullptr) ==
ErrorCode::MissingRequired);
ASSERT_TRUE(RequiredIntHelper(i, nullptr) == ErrorCode::MissingRequired);
return true;
}
}
int testJSONHelpers(int /*unused*/, char* /*unused*/[])
{
if (!testInt()) {
return 1;
}
if (!testUInt()) {
return 1;
}
if (!testBool()) {
return 1;
}
if (!testString()) {
return 1;
}
if (!testObject()) {
return 1;
}
if (!testObjectInherited()) {
return 1;
}
if (!testObjectNoExtra()) {
return 1;
}
if (!testObjectOptional()) {
return 1;
}
if (!testVector()) {
return 1;
}
if (!testVectorFilter()) {
return 1;
}
if (!testMap()) {
return 1;
}
if (!testMapFilter()) {
return 1;
}
if (!testOptional()) {
return 1;
}
if (!testRequired()) {
return 1;
}
return 0;
}
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