Hi,<\/p>\n
In my recent grails project, i needed to write unit test cases for testing custom validators which i created in command objects. To test validators, there is a method provided by grails “mockForConstraintsTests()” for validating constraints on Domain as well as Command-Object fields.<\/p>\n
Let us take a scenario where we needed to use command object for user registration form. There are various fields in the class which include fields password and confirmPassword also. Now i want to validate that the value of password and confirm password should be same before saving it to the database.<\/p>\n
I created custom validator for this which looks like.<\/p>\n
\r\n password(nullable: false, blank: false, minSize: 6)\r\n confirmPassword(nullable: false, blank: false, validator: {val, obj ->\r\n obj.properties['password'] == val\r\n })\r\n<\/pre>\nThe unit test which i write for this is like :-<\/p>\n
void testUserPasswordConstraints() {\r\n\r\n mockForConstraintsTests(UserCommandObject)\r\n UserCommandObject uco = new UserCommandObject()\r\n uco.password=\"abcde\"\r\n uco.confirmPassword=\"xyz\"\r\n uco.validate()\r\n assertNotNull(uco.errors[\"confirmPassword\"]) \r\n\/\/ Validation message for password and confirmPassword field do not match\r\n\r\n }\r\n<\/pre>\nSo, by using ‘mockForConstraintsTests()’ method we can easily write test cases for testing constraints and custom validators for domain as well as command-object fields.It helped me a lot.<\/p>\n
Hope this helps.<\/p>\n
Vishal Sahu
\nvishal@intelligrape.com<\/p>\n","protected":false},"excerpt":{"rendered":"
Hi, In my recent grails project, i needed to write unit test cases for testing custom validators which i created in command objects. To test validators, there is a method provided by grails “mockForConstraintsTests()” for validating constraints on Domain as well as Command-Object fields. Let us take a scenario where we needed to use command […]<\/p>\n","protected":false},"author":19,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"iawp_total_views":5,"footnotes":""},"categories":[7],"tags":[],"class_list":["post-2092","post","type-post","status-publish","format-standard","hentry","category-grails"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t