Send mock push notifications to a locally (rooted) device

app_src_debug_AndroidManifest.xml

<!-- NOTE: REPLACE THE CATEGORY WITH YOUR OWN PACKAGE NAME -->
<!-- Don't include this receiver in your main AndroidManifest as it's a security hazard -->
<receiver
    android:name="com.google.firebase.iid.FirebaseInstanceIdReceiver"
    android:exported="true"
    android:permission="@null"
    tools:replace="android:permission">
    <intent-filter>
        <action android:name="com.google.android.c2dm.intent.RECEIVE" />
        <category android:name="some.randome.packagename" />
    </intent-filter>
</receiver>

test_notifications.sh

#!/bin/zsh
# Use this script to emulate push notifications
# This only works on rooted devices (f.e. Emulators are rooted by default). Once the emulator is started,
# execute following command to make sure these commands are executed as root as well (without $):
# $ adb root
# Here's an example of a single notification to post in CLI:

## You can add/modify a link to the list by following the structure of KEY::VALUE
# Where KEY will be the title of the push notification and value will be the actual
# push notification & body
links=(
  "Push_notification_title::https://www.mydeeplinkurl.com/this/is/a/deeplink"
)

# DON'T FORGET TO CHANGE THE PACKAGENAME AFTER THE -n TO YOURS AS WELL
# The deeplink URL can be extracted from your app by getting the "deeplink" extra from the intent (`intent.extras.getString("deeplink")`)
for key in "${links[@]}" ; do
      KEY="${key%%::*}"
      VALUE="${key##*::}"
      echo "Triggering: $VALUE"
      adb shell am broadcast \
         -n some.randome.packagename/com.google.firebase.iid.FirebaseInstanceIdReceiver \
         -a "com.google.android.c2dm.intent.RECEIVE" \
         --es "gcm.n.e" "1" \
         --es "gcm.n.title" "$KEY" \
         --es "gcm.n.body" "$VALUE" \
         --es "deeplink" "$VALUE"
done