{
ValidationMessagesSource messagesSource = mockValidationMessagesSource();
Validator validator = mockValidator();
TypeCoercer coercer = mockTypeCoercer();
FieldComponent field = newFieldComponent();
Messages messages = mockMessages();
MessageFormatter formatter = mockMessageFormatter();
Object inputValue = new Object();
ComponentResources resources = mockComponentResources();
Messages containerMessages = mockMessages();
FormSupport fs = mockFormSupport();
Map<String, Validator> map = singletonMap("required", validator);
train_getConstraintType(validator, null);