Clarify e2e readme for running on firebase test lab (#2898)
* clarify e2e on firebase
diff --git a/packages/e2e/README.md b/packages/e2e/README.md
index 76440bb..a9ebed1 100644
--- a/packages/e2e/README.md
+++ b/packages/e2e/README.md
@@ -130,10 +130,12 @@
to set up a project.
To run an e2e test on Android devices using Firebase Test Lab, use gradle commands to build an
-instrumentation test for Android.
+instrumentation test for Android, after creating `androidTest` as suggested in the last section.
-```
+```bash
pushd android
+# flutter build generates files in android/ for building the app
+flutter build apk
./gradlew app:assembleAndroidTest
./gradlew app:assembleDebug -Ptarget=<path_to_test>.dart
popd
@@ -142,7 +144,7 @@
Upload the build apks Firebase Test Lab, making sure to replace <PATH_TO_KEY_FILE>,
<PROJECT_NAME>, <RESULTS_BUCKET>, and <RESULTS_DIRECTORY> with your values.
-```
+```bash
gcloud auth activate-service-account --key-file=<PATH_TO_KEY_FILE>
gcloud --quiet config set project <PROJECT_NAME>
gcloud firebase test android run --type instrumentation \
