valijson/tests/test_jsoncpp_adapter.cpp
2019-09-26 10:59:45 +10:00

81 lines
2.8 KiB
C++

#include <gtest/gtest.h>
#include <valijson/adapters/jsoncpp_adapter.hpp>
class TestJsonCppAdapter : public testing::Test
{
};
TEST_F(TestJsonCppAdapter, BasicArrayIteration)
{
const unsigned int numElements = 10;
// Create a jsoncpp document that consists of an array of numbers
Json::Value document(Json::arrayValue);
for (unsigned int i = 0; i < numElements; i++) {
document.append(Json::Value(i));
}
// Ensure that wrapping the document preserves the array and does not allow
// it to be cast to other types
valijson::adapters::JsonCppAdapter adapter(document);
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() );
// 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::JsonCppAdapter value : adapter.getArray()) {
ASSERT_TRUE( value.isNumber() );
EXPECT_EQ( double(expectedValue), value.getNumber() );
expectedValue++;
}
// Ensure that the correct number of elements were iterated over
EXPECT_EQ(numElements, expectedValue);
}
TEST_F(TestJsonCppAdapter, BasicObjectIteration)
{
const unsigned int numElements = 10;
// Create a jsoncpp document that consists of an object that maps numeric
// strings their corresponding numeric values
Json::Value document(Json::objectValue);
for (unsigned int i = 0; i < numElements; i++) {
std::string name(std::to_string(i));
document[name] = Json::Value(double(i));
}
// Ensure that wrapping the document preserves the object and does not
// allow it to be cast to other types
valijson::adapters::JsonCppAdapter adapter(document);
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() );
// 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::JsonCppAdapter::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 );
}