```
class MyTest {
  private final MockWebServer server;

  MyTest(MockWebServer server) {
    this.server = server;
  }

  @Test
  void test() {
    ...
  }
}
```

Constructor injection is particularly concise in Kotlin:

```
class MyTest(
  private val server: MockWebServer
) {
  @Test
  fun test() {
    ...
  }
}
```