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kotlinlang

My team is starting to use the <https://www.apollographql.com/docs/kotlin/testing/mocking-graphql-responses/|experimental mock responses> but we are running into an issue since our project is multi-module. Since the `TestBuilders` are being generated in our data modules test package, we cannot access them in other modules where we have acceptance tests. Has anyone found a way around this?

We’re doing <https://github.com/HedvigInsurance/android/blob/f88ca1d5c5658209460483f3ad804572d7b53534/apollo/build.gradle.kts#L25-L28|this>
```testDirConnection {
    // Make test builders available to main (not just test or androidTest) to be used by our mock data
    connectToAndroidSourceSet("main")
}```
in our `apollo {}` gradle plugin configuration block to generate these test builders in the generated sources of the `main` directory instead of the test package. Would this help?

I’ll give that a try, thanks :slightly_smiling_face:

That works, but exposes the test code to our production code. Will have to discuss with the team to see if they are ok with this. But thank you!

I am glad it works, but yes this is true. I don’t know of a better alternative, but if there is one, one of the library maintainers will probably know about it, so I’d wait for them to reply as well. I posted this as an idea to unblock you for now at least :smile:

For us, we’re indeed exposing this to production code, but we’re only a few people so it’s easy to manually make sure we don’t accidentally use this in production. In a bigger team it may be harder to always be on the lookout :smile:

I really appreciate it! Gives me some other ideas to try out too!

I've heard about test fixtures in Java but IIRC it wasn't working very well in Kotlin

<https://docs.gradle.org/current/userguide/java_testing.html#sec:java_test_fixtures>

Ya I looked in to test fixtures but couldn’t get those working. Could certainly just have been doing something wrong.

I think there's an issue in the Kotlin tracker, let me check

<https://youtrack.jetbrains.com/issue/KTIJ-14843/Add-support-for-new-Gradle-Test-Fixtures>

Looks like it's working if you're JVM only but not on Android: <https://youtrack.jetbrains.com/issue/KT-50667/Support-compiling-android-testFixtures-sources-in-the-kotlin-android-gradle-plugin>

You might be able to define a JVM-only module that defines the GraphQL queries

But not sure if you can "consume" the test fixtures from the Android module

I see. I’m looking in to creating a new source set which I could have the TestBuilders generated in that would be visible to other module tests but not to production code. I’m not sure if that’s possible or even makes sense as I haven’t dealt much with source sets before. But if this doesn’t work I’m going to look in to a JVM-only module as you described :+1: