Unable to test domain using not default datasource

[bdbogjoe]

i initially created issue but in wrong place grails/grails-core#10888

while doing test i have error :

org.grails.datastore.mapping.core.exceptions.ConfigurationException: Invalid connection [myDataSource] configured for class [class joe.Test]

I spent already days on this, cannot find correct solution.
One idea was to overwrite method getDatastore bdbogjoe/unit-test-multiple-datasource#2 but in some case does not work and don't think it is correct way to do this.

Do you have any idea how to fix this ? Was working fine in grails 3.1.x

[bdbogjoe]

i wonder why on https://github.com/grails/grails-testing-support/blob/master/grails-gorm-testing-support/src/main/groovy/org/grails/testing/gorm/spock/DataTestSetupSpecInterceptor.groovy#L49 it is using deprecated constructor of SimpleMapDatastore

[bdbogjoe]

@jeffbrown do you have any idea on this issue ?

[bdbogjoe]

thanks to @jameskleeh, and bdbogjoe/unit-test-multiple-datasource#3

i'm now able to able to pass my previous tests, but now i'm facing issue while trying to validate my domain

Condition failed with Exception:

bean.validate()
|    |
|    java.lang.IllegalStateException: No Datastore Session bound to thread, and configuration does not allow creation of non-transactional one here
joe.Test : (unsaved)

If i add annotation @transactional(connection = 'myDataSource')

I got error :

No datastore found for connection named [myDataSource]
org.grails.datastore.mapping.core.exceptions.ConfigurationException: No datastore found for connection named [myDataSource]
	at org.grails.datastore.mapping.simple.SimpleMapDatastore.getDatastoreForConnection(SimpleMapDatastore.java:344)
	at joe.TestSpec.testValidateWithTransactional(TestSpec.groovy)

i updated my repo : https://github.com/bdbogjoe/unit-test-multiple-datasource

just run gradle test to have these errors

[jameskleeh]

@bdbogjoe In general my advice for situations like this is to use a real datastore.

[bdbogjoe]

thanks @jameskleeh , i'm now back on this issue, i'm still blocked with it.

What do you mean by using real datastore ?

Seems we don't have choice :

grails-testing-support/grails-gorm-testing-support/src/main/groovy/org/grails/testing/gorm/spock/DataTestSetupSpecInterceptor.groovy

Line 59 in f1a61e4

grailsDatastore SimpleMapDatastore, application.mainContext

SimpleDatastore is used, and we cannot change it, and using deprecated constructor
I try to override the bean grailsDatastore, but our code (doWithSpring) from tests is evaluated before, and so not possible to override the bean

I spent days already on this issue, i'm the only one testing domain which is not using default datasource ?

I updated my repo to illustrate another issue, maybe same, don't know

https://github.com/bdbogjoe/unit-test-multiple-datasource

if you run test you have now :

i have constraint defined : https://github.com/bdbogjoe/unit-test-multiple-datasource/blob/a0e35a37a698862884b5285127e7fbe7a1298ab1/grails-app/domain/joe/Test.groovy#L12

Same tests for other domain using default datasource works fine

I think we need better solution than overriding dataStore in test, because in some other places we need to get datastore from application context

[bdbogjoe]

i found one solution : bdbogjoe/unit-test-multiple-datasource@9fe9625

but don't think it is nice solution, any other proposal ?

[anthonyMoreira]

@jameskleeh In general my advice for situations like this is to use a real datastore.
Can you elaborate ? I'm interested in your advice as I'm also currently stuck. I can't seem to find a way to have the same mocking with Domains using a different datasource than the default one.

DataTest doesn't support enhancing Domain that comes from a different datastore than default one. The only way seem to hack the connections sources to make the default datastore create children datastore...

[jameskleeh]

@anthonyMoreira For example if you are using Hibernate, use the https://github.com/grails/gorm-hibernate5/blob/master/grails-plugin/src/main/groovy/grails/test/hibernate/HibernateSpec.groovy instead of this unit testing framework.