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Setup inMemory Realm for Instrumented Tests

See original GitHub issue

Goal

Setup inMemory Realm while running Instrumented tests

Actual Results

Realm cannot be initialized from androidTest package

Steps & Code to Reproduce

@Before
fun setup() {
    Realm.init(MessengerApplication.context)
    val config = RealmConfiguration.Builder()
            .name("realm.test")
            .inMemory()
            .build()
    realm = Realm.getInstance(config)
}

java.lang.NoSuchMethodError: No static method init(Landroid/content/Context;)V in class Lio/realm/Realm; or its super classes

Strangely, the code works if I setup realm in my Application class and set the default config to inMemory.

Version of Realm and tooling

Realm version(s): 4.1.1

Realm sync feature enabled: No

Android Studio version: 3.0

Which Android version and device: 7.0

Issue Analytics

State:
Created 6 years ago
Comments:6 (3 by maintainers)

Top GitHub Comments

2reactions

cmelchiorcommented, Nov 3, 2017

Interesting. Thanks for the info 👍

0reactions

SarthakM9commented, Nov 3, 2017

@cmelchior I think I found the problem!

debug {
    minifyEnabled true
    useProguard false 
    proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}

as I was removing all unused methods in the debug build, inMemory() was not found when I mentioned in the androidTest package. Moreover, when I moved all the Realm initialization to androidTest, it could not find anything! simply ignoring Realm classes in Proguard settings resolved the issue!