I was having a problem with using Android Espresso to test a RecyclerView when it’s data was updated.This is for an Android app where a list of contacts is displayed by a RecyclerView. There is a SearchView in the action bar that can filter the contacts list to display matching contact names.The Espresso test ran like this:Start the activity.Espresso verifies that the full list of contacts is...
I was writing an instrumentation test which required restarting the activity during a test. As I was trying out the ActivityScenarioRule to replace an ActivityTestRule, the documentation says I can use this method on the ActivityScenario to restart the activity after it has been launched:1scenario.recreate()So I wrote this function to for restarting the...
Using Dagger 2 for dependency injection means that you can inject fake / mock objects for testing. I had been using a fake AndroidInjector to do this in my Espresso tests for an old Android app I was updating, but found that on updating Dagger to a more recent version (from 2.14 to 2.21) the custom AndroidInjector no longer compiled.The fake AndroidInjector I was using was based on these...
I have been rewriting a Settings (Preferences) activity for an old Android app. Since I was using RxJava in the app, I decided to try out RxPreferences which allows you to use SharedPreferences with a reactive wrapper.I found it quite good to use, although the blog post that accompanies it is a bit out of date. While I did’t use RxBinding with it, it still had these advantages:Preferences are...
While I was explaining to a colleague about using Gradle for Java projects (he was moving away from Maven), we came across various code samples. Some of the examples were using the compile configuration for dependencies, while others were using implements and api.dependencies { compile 'commons-httpclient:commons-httpclient:3.1' compile 'org.apache.commons:commons-lang3:3.5' }dependencies { api...
There is some documentation on how to add JRebel to a Spring Boot app that uses Gradle as the build tool. It is basic but works fine.All you have to do is to add a few lines to build.gradle:if (project.hasProperty('rebelAgent')) { bootRun.jvmArgs += rebelAgent }Then set the property in gradle.properties:rebelAgent=-agentpath:[path/to/JRebel library]However there are several ways to improve on...
