valijson/tests/test_rapidjson_adapter.cpp
Jordan Bayles a30ef97465 Add VALIJSON_USE_EXCEPTIONS mode
This patch adds support for a new Cmake option,
VALIJSON_USE_EXCEPTIONS. If specified and set to `0`, Valijson will
disable all exception throwing, add the `-fno-exceptions` compiler flag,
and print to std::err and abort where exceptions would have been thrown.

NOTE: to set the value of a CMake option, the easiest way is to modify
the appropriate source line in the <build folder>/CMakeCache.txt file.

Bug: #106
2020-11-08 16:58:32 -08:00

114 lines
3.8 KiB
C++

#include <string>
#include <gtest/gtest.h>
#include <valijson/adapters/rapidjson_adapter.hpp>
class TestRapidJsonAdapter : public testing::Test
{
};
template<class ValueType>
void testBasicArrayIteration()
{
const unsigned int numElements = 10;
// Create a rapidjson document that consists of an array of numbers
rapidjson::Document document;
document.SetArray();
for (unsigned int i = 0; i < numElements; i++) {
rapidjson::Value value;
value.SetDouble(i);
document.PushBack(value, document.GetAllocator());
}
// Ensure that wrapping the document preserves the array and does not allow
// it to be cast to other types
valijson::adapters::RapidJsonAdapter adapter(document);
#if VALIJSON_USE_EXCEPTIONS
ASSERT_NO_THROW( adapter.getArray() );
ASSERT_ANY_THROW( adapter.getBool() );
ASSERT_ANY_THROW( adapter.getDouble() );
ASSERT_ANY_THROW( adapter.getObject() );
ASSERT_ANY_THROW( adapter.getString() );
#endif
// Ensure that the array contains the expected number of elements
EXPECT_EQ( numElements, adapter.getArray().size() );
// Ensure that the elements are returned in the order they were inserted
unsigned int expectedValue = 0;
for (const valijson::adapters::RapidJsonAdapter value : adapter.getArray()) {
ASSERT_TRUE( value.isNumber() );
EXPECT_EQ( double(expectedValue), value.getDouble() );
expectedValue++;
}
// Ensure that the correct number of elements were iterated over
EXPECT_EQ(numElements, expectedValue);
}
template<typename ValueType>
void testBasicObjectIteration()
{
const unsigned int numElements = 10;
// Create a rapidjson document that consists of an object that maps numeric
// strings their corresponding numeric values
rapidjson::Document document;
document.SetObject();
for (unsigned int i = 0; i < numElements; i++) {
rapidjson::Value name, value;
name.SetString(std::to_string(i).c_str(), document.GetAllocator());
value.SetDouble(i);
document.AddMember(name, value, document.GetAllocator());
}
// Ensure that wrapping the document preserves the object and does not
// allow it to be cast to other types
valijson::adapters::RapidJsonAdapter adapter(document);
#if VALIJSON_USE_EXCEPTIONS
ASSERT_NO_THROW( adapter.getObject() );
ASSERT_ANY_THROW( adapter.getArray() );
ASSERT_ANY_THROW( adapter.getBool() );
ASSERT_ANY_THROW( adapter.getDouble() );
ASSERT_ANY_THROW( adapter.getString() );
#endif
// Ensure that the object contains the expected number of members
EXPECT_EQ( numElements, adapter.getObject().size() );
// Ensure that the members are returned in the order they were inserted
unsigned int expectedValue = 0;
for (const valijson::adapters::RapidJsonAdapter::ObjectMember member : adapter.getObject()) {
ASSERT_TRUE( member.second.isNumber() );
EXPECT_EQ( std::to_string(expectedValue), member.first );
EXPECT_EQ( double(expectedValue), member.second.getDouble() );
expectedValue++;
}
// Ensure that the correct number of elements were iterated over
EXPECT_EQ( numElements, expectedValue );
}
TEST_F(TestRapidJsonAdapter, BasicArrayIteration)
{
// Test using default RapidJson value type, which uses MemoryPoolAllocator
testBasicArrayIteration<rapidjson::Value>();
// Test using value type based on CrtAllocator
testBasicArrayIteration<rapidjson::GenericValue<rapidjson::UTF8<>,
rapidjson::CrtAllocator> >();
}
TEST_F(TestRapidJsonAdapter, BasicObjectIteration)
{
// Test using default RapidJson value type, which uses MemoryPoolAllocator
testBasicObjectIteration<rapidjson::Value>();
// Test using value type based on CrtAllocator
testBasicObjectIteration<rapidjson::GenericValue<rapidjson::UTF8<>,
rapidjson::CrtAllocator> >();
}