Grails 3.0.x plugin unable to run integration tests with database - grails

Question

When I run
grails create-app some-app
and
grails create-integration-test SomeTest
with a really complicated test:
expect:
1 == 1
It works just fine. Same when I update the build.gradle
dependencies {
compile "org.springframework.boot:spring-boot-starter-logging"
compile "org.springframework.boot:spring-boot-starter-actuator"
compile "org.springframework.boot:spring-boot-autoconfigure"
compile "org.springframework.boot:spring-boot-starter-tomcat"
compile "org.grails:grails-dependencies"
compile "org.grails:grails-web-boot"
compile "org.grails.plugins:hibernate"
compile "org.grails.plugins:cache"
compile "org.hibernate:hibernate-ehcache"
compile "org.grails.plugins:scaffolding"
/**/compile 'org.postgresql:postgresql:9.4-1201-jdbc41' /**This is new**/
runtime "org.grails.plugins:asset-pipeline"
testCompile "org.grails:grails-plugin-testing"
testCompile "org.grails.plugins:geb"
// Note: It is recommended to update to a more robust driver (Chrome, Firefox etc.)
testRuntime 'org.seleniumhq.selenium:selenium-htmlunit-driver:2.44.0'
console "org.grails:grails-console"
}
and the application.yml
dataSource: &pg_baseline ###Only the datasource is updated###
driverClassName: org.postgresql.Driver
dialect: org.hibernate.dialect.PostgreSQLDialect
url: jdbc:postgresql://le-server:5432/LeDatabase
username: ***le superuser***
password: ***le password***
environments:
development:
dataSource:
<< : *pg_baseline
url: le-server:5432/LeDatabase_Dev
test:
dataSource:
<< : *pg_baseline
url: le-server:5432/LeDatabase_Test
to work with a PostgreSQL test database. However, if I follow the same steps but with create-plugin (--profile=plugin, or web-plugin, or not specified profile). Adding the exact same changes to build.gradle + applicatione.yml for the plugin, then running integration tests yields the sweet sweet message:
SomeTest > test something FAILED
java.lang.IllegalStateException
Caused by: org.springframework.beans.factory.BeanCreationException
Caused by: org.springframework.beans.factory.BeanCreationException
Caused by: org.springframework.beans.factory.BeanCreationExcepti
on
Caused by: java.lang.NullPointerException
1 test completed, 1 failed
:integrationTest FAILED
In all cases, this is using the following command to run the tests:
grails test-app -integration --stacktrace
Are plugins not able to test against a live database? Do I need some other flag on my test running?