Configuration can be a bit hairy to test in grails unit tests. While there is an official technique that I found in a JIRA that looks like this:
mockConfig ''' john.doe.name = "bill" '''
I’ve never gotten it to work. I’ve fallen back to using the Groovy provided meta-programming techniques. This means you need to mock the configuration differently depending on how you access your configuration.
No matter what, start by creating a ConfigObject()
def mockedConfig = new ConfigObject() mockedConfig.john.doe.name = "bill"
The next step depends on how you’re accessing config in the code you’re testing. If you’re using ConfiguratoinHolder, try this
ConfigurationHolder.config = mockedConfig
On the other hand, if you’re using grailsApplication, this will work better.
GrailsApplication.metaClass.getConfig = {-> mockedConfig }
This is yet another reason to be consistent in your coding. If you’re not consistent you may end up mocking both.
