validate() Mock Constraint Testing in Grails - unit-testing

Question

I have a unit test that I am trying to get the validation to succeed on.
Basically, when I call badMockedSecureFile.validate(), it is not doing what I expect, and that is failing validation for the two fields, encryptedFileName and encryptedFileData.
When I break in the debugger, I simply get a null value for badMockedSecureFile.errors in the subsequent assert. Here are my two files:
Any input would be greatly appreciated. I couldn't find an exact similar question. I'm using grails 2.2.4 with Oracle JDK 1.7.0_25 if that matters any.
EDIT: I just wanted to note that I removed the mockForConstraintTests call and it seems to be working now. I get this feeling I didn't RTFM somewhere and this behaviour changed in unit testing, or is something else going on?
SecureFile.groovy
class SecureFile implements Serializable {
/**
* An unencrypted version of the file name. This file name is unencrypted
* when the appropriate password and key combo is used and it is never
* persisted to the database for security (see transients below).
*/
String fileName
/**
* Unencrypted version of the file data. Never persisted to the
* database for security (see transients below).
*/
byte[] fileData
String encryptedFileName
byte[] encryptedFileData
Date dateAdded
Date dateUpdated
Date dateDeleted
static constraints = {
encryptedFileName(nullable: false, blank: false)
encryptedFileData(nullable: false)
}
static transients = ["fileName", "fileData"]
static belongsTo = [user: User]
}
SecureFileTests.groovy
import static org.junit.Assert.*
import grails.test.mixin.*
import grails.test.mixin.support.*
import org.junit.*
/**
* See the API for {#link grails.test.mixin.support.GrailsUnitTestMixin} for usage instructions
*/
#TestFor(SecureFile)
class SecureFileTests {
static final String SAMPLE_PDF_FILE = "fileEncryptionTestSample.pdf"
void testConstraints() {
def samplePdfFile = new FileInputStream(SAMPLE_PDF_FILE)
// Not really encrypted for this mock.
def mockedSecureFile = new SecureFile(
encryptedFileName: "--Not-Really-Encrypted--",
encryptedFileData: samplePdfFile.getBytes()
)
mockForConstraintsTests(SecureFile, [mockedSecureFile])
// Validation should fail if both properties are null.
def badMockedSecureFile = new SecureFile()
assert !badMockedSecureFile.validate()
assert "nullable" == badMockedSecureFile.errors["encryptedFileName"].code
assert "nullable" == badMockedSecureFile.errors["encryptedFileData"].code
}
}

Answer 1

Remove code from badMockedSecureFile.errors["encryptedFileName"].code .
You will get as you expected.
mockForConstraintsTests(SecureFile)
// Validation should fail if both properties are null.
def badMockedSecureFile = new SecureFile()
assert !badMockedSecureFile.validate()
assert "nullable" == badMockedSecureFile.errors["encryptedFileName"]
assert "nullable" == badMockedSecureFile.errors["encryptedFileData"]