This module integrates mockwebserver3.MockWebServer with JUnit 4.

To use, first add this library as a test dependency:

testImplementation("com.squareup.okhttp3:mockwebserver3-junit4:4.12.0")

Then in tests annotated @org.junit.Test, you may declare a field with the @Rule annotation:

@Rule public final MockWebServerRule serverRule = new MockWebServerRule();

The serverRule field has a server field. It is an instance of MockWebServer. That instance will be shut down automatically after the test runs.

For Kotlin, the @JvmField annotation is also necessary:

@JvmField @Rule val serverRule = MockWebServerRule()