public void TryCreateFromJsonString_should_return_an_error_if_the_json_contains_nested_objects()
{
BridgeMessageDeserializer.TryCreateFromJsonString(
"{ invalidJson: { nested: 123 } }",
out BridgeMessageDeserializer deserializer,
out IServiceCommandResponse errorResponse)
.Should()
.BeFalse();
deserializer.Should().BeNull();
errorResponse.Should().NotBeNull();
errorResponse.CommandName.Should().Be(ServiceCommandName.Unknown);
errorResponse.ErrorCode.Should().Be(ServiceCommandErrorCode.InternalError);
errorResponse.ErrorMessage.Should().Contain("Unable to cast object of type");
}
public void TryCreateFromJsonString_should_return_an_error_if_the_json_is_invalid()
{
BridgeMessageDeserializer.TryCreateFromJsonString(
"invalidJson: 123",
out BridgeMessageDeserializer deserializer,
out IServiceCommandResponse errorResponse)
.Should()
.BeFalse();
deserializer.Should().BeNull();
errorResponse.Should().NotBeNull();
errorResponse.CommandName.Should().Be(ServiceCommandName.Unknown);
errorResponse.ErrorCode.Should().Be(ServiceCommandErrorCode.InternalError);
errorResponse.ErrorMessage.Should().StartWith("Internal error: Unexpected character");
}
public void TryCreateFromJsonString_should_return_an_error_if_command_name_is_not_the_right_type()
{
BridgeMessageDeserializer.TryCreateFromJsonString(
$"{{ {ParamName.CommandName}: \"NotRight\" }}",
out BridgeMessageDeserializer deserializer,
out IServiceCommandResponse errorResponse)
.Should()
.BeFalse();
deserializer.Should().BeNull();
errorResponse.Should().NotBeNull();
errorResponse.CommandName.Should().Be(ServiceCommandName.Unknown);
errorResponse.ErrorCode.Should().Be(ServiceCommandErrorCode.WrongMessageValueType);
errorResponse.ErrorMessage.Should().Contain(ParamName.CommandName.ToString());
}
public void TryCreateFromJsonString_should_return_an_error_if_missing_a_command_name()
{
BridgeMessageDeserializer.TryCreateFromJsonString(
$"{{ Something: 10 }}",
out BridgeMessageDeserializer deserializer,
out IServiceCommandResponse errorResponse)
.Should()
.BeFalse();
deserializer.Should().BeNull();
errorResponse.Should().NotBeNull();
errorResponse.CommandName.Should().Be(ServiceCommandName.Unknown);
errorResponse.ErrorCode.Should().Be(ServiceCommandErrorCode.MissingRequiredMessageValue);
errorResponse.ErrorMessage.Should().Contain(ParamName.CommandName.ToString());
}
public void TryCreateFromJsonString_should_correctly_deserialize()
{
string json = $@"
{{
{ParamName.CommandName}: ""{ServiceCommandName.Echo}"",
{ParamName.EchoMessage}: ""Test"",
}}";
BridgeMessageDeserializer.TryCreateFromJsonString(
json,
out BridgeMessageDeserializer deserializer,
out IServiceCommandResponse errorResponse)
.Should()
.BeTrue();
deserializer.Should().NotBeNull();
errorResponse.Should().BeNull();
deserializer.CommandName.Should().Be(ServiceCommandName.Echo);
deserializer.GetStringValue(ParamName.EchoMessage).Should().Be("Test");
}
public void TryCreateFromJsonString_should_throw_on_null_params()
{
Action action = () => BridgeMessageDeserializer.TryCreateFromJsonString(null, out _, out _);
action.Should().ThrowExactly <ArgumentNullException>().And.ParamName.Should().Be("jsonString");
}