Android: Robolectric does not support API level 1

Question

This is my basic test class: ``` @RunWith(RobolectricTestRunner.class) public class MainActivityTest { @Before public void setup() { //do whatever is necessary before every test } @Test public void testActivityFound() { Activity activity = Robolectric.buildActivity(MainActivity.class).create().get(); Assert.assertNotNull(activity); } } ``` When I execute my test under Android Studio, with the Terminal window, I have this error: ``` java.lang.UnsupportedOperationException: Robolectric does not support API level 1, sorry! at org.robolectric.SdkConfig.<init>(SdkConfig.java:24) at org.robolectric.RobolectricTestRunner.pickSdkVersion(RobolectricTestRunner.java:320) at org.robolectric.RobolectricTestRunner.getEnvironment(RobolectricTestRunner.java:296) at org.robolectric.RobolectricTestRunner.access$300(RobolectricTestRunner.java:61) at org.robolectric.RobolectricTestRunner$2.evaluate(RobolectricTestRunner.java:202) at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:271) at org.jun…

Accepted Answer

There are several approaches for this:

- Specify in your `AndroidManifest.xml` your `targetSdkVersion`

Create a custom `RobolectricTestRunner` and override `getAppManifest` method for specifying the target sdk. E.g.:

```
public class MyCustomRunner extends RobolectricTestRunner {

@Override
    protected AndroidManifest getAppManifest(Config config) {

String manifestPath = "your_manifest_path";
        String resPath = "your_res_path";
        return new AndroidManifest(Fs.fileFromPath(manifestPath), Fs.fileFromPath(resPath)) {
            @Override
            public int getTargetSdkVersion() {
                return 18;
            }
        }; 
    }
}
```

and then use it in your `MainActivityTest` class with `@RunWith(MyCustomRunner.class)`.

Use `@Config(emulateSdk=18)` annotation on top of your `MainActivityTest` class.

The third approach is the simplest one, but you have to annotate all of your test classes. I personally prefer the second approach as gives more flexibility in configuring your runner.

Android: Robolectric does not support API level 1

Solution

Problem