Appcircle is a mobile CI/CD platform that provides a fully automated environment to manage mobile app CI, CD and CT (continuous testing). For continuous testing, you have a number of options with Appcircle CI/CD and you can use Firebase Test Lab for multiple-device testing.
In this article, we will be integrating Firebase Test Lab to your mobile CI/CD workflow in a few easy steps.
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<h2>Setting Up a Firebase Project and a Service Account</h2>
To start with the <a href="https://firebase.google.com/products/test-lab" target="_blank" rel="noopener noreferrer">Firebase Test Lab</a>, you need to have an associated Firebase Project, which is created in the <a href="https://console.firebase.google.com/" target="_blank" rel="noopener noreferrer">Firebase console</a>. Go to the console, press the &#8220;Add Project&#8221; button and specify the project name and the other settings:
<a href="https://ac.appcircle.io/wp-content/uploads/2020/07/Firebase-Test-Lab-Appcircle-1.png"><img class="alignnone wp-image-1408 size-full" src="https://ac.appcircle.io/wp-content/uploads/2020/07/Firebase-Test-Lab-Appcircle-1.png" alt="Image related to How to Integrate Firebase Test Lab to the Mobile CI/CD Pipeline for Android" width="1440" height="800" srcset="https://ac.appcircle.io/wp-content/uploads/2020/07/Firebase-Test-Lab-Appcircle-1.png 1440w, https://ac.appcircle.io/wp-content/uploads/2020/07/Firebase-Test-Lab-Appcircle-1-300x167.png 300w, https://ac.appcircle.io/wp-content/uploads/2020/07/Firebase-Test-Lab-Appcircle-1-1030x572.png 1030w, https://ac.appcircle.io/wp-content/uploads/2020/07/Firebase-Test-Lab-Appcircle-1-768x427.png 768w, https://ac.appcircle.io/wp-content/uploads/2020/07/Firebase-Test-Lab-Appcircle-1-705x392.png 705w, https://ac.appcircle.io/wp-content/uploads/2020/07/Firebase-Test-Lab-Appcircle-1-450x250.png 450w" sizes="(max-width: 1440px) 100vw, 1440px" /></a>
After your project is created, go to the <a href="https://console.cloud.google.com/iam-admin/serviceaccounts/" target="_blank" rel="noopener noreferrer">Google Cloud Platform console</a> to create a service account. Press the &#8220;Create Service Account&#8221; button and follow the prompts to create a service account with the Editor role:
<a href="https://ac.appcircle.io/wp-content/uploads/2020/07/Firebase-Test-Lab-Appcircle-2.png"><img class="alignnone wp-image-1409 size-full" src="https://ac.appcircle.io/wp-content/uploads/2020/07/Firebase-Test-Lab-Appcircle-2.png" alt="Google Cloud Platform" width="1440" height="800" srcset="https://ac.appcircle.io/wp-content/uploads/2020/07/Firebase-Test-Lab-Appcircle-2.png 1440w, https://ac.appcircle.io/wp-content/uploads/2020/07/Firebase-Test-Lab-Appcircle-2-300x167.png 300w, https://ac.appcircle.io/wp-content/uploads/2020/07/Firebase-Test-Lab-Appcircle-2-1030x572.png 1030w, https://ac.appcircle.io/wp-content/uploads/2020/07/Firebase-Test-Lab-Appcircle-2-768x427.png 768w, https://ac.appcircle.io/wp-content/uploads/2020/07/Firebase-Test-Lab-Appcircle-2-705x392.png 705w, https://ac.appcircle.io/wp-content/uploads/2020/07/Firebase-Test-Lab-Appcircle-2-450x250.png 450w" sizes="(max-width: 1440px) 100vw, 1440px" /></a>
Once the service account is created, click on the three dot menu next to the service account and press &#8220;Create Key&#8221;.
<a href="https://ac.appcircle.io/wp-content/uploads/2020/07/Firebase-Test-Lab-Appcircle-3.png"><img class="alignnone wp-image-1410 size-full" src="https://ac.appcircle.io/wp-content/uploads/2020/07/Firebase-Test-Lab-Appcircle-3.png" alt="Google Cloud Platform" width="1440" height="800" srcset="https://ac.appcircle.io/wp-content/uploads/2020/07/Firebase-Test-Lab-Appcircle-3.png 1440w, https://ac.appcircle.io/wp-content/uploads/2020/07/Firebase-Test-Lab-Appcircle-3-300x167.png 300w, https://ac.appcircle.io/wp-content/uploads/2020/07/Firebase-Test-Lab-Appcircle-3-1030x572.png 1030w, https://ac.appcircle.io/wp-content/uploads/2020/07/Firebase-Test-Lab-Appcircle-3-768x427.png 768w, https://ac.appcircle.io/wp-content/uploads/2020/07/Firebase-Test-Lab-Appcircle-3-705x392.png 705w, https://ac.appcircle.io/wp-content/uploads/2020/07/Firebase-Test-Lab-Appcircle-3-450x250.png 450w" sizes="(max-width: 1440px) 100vw, 1440px" /></a>
Select the key format as &#8220;JSON&#8221; and download the created key. We will be using this key for Appcircle to be able to deploy apps to Firebase Test Lab.
<a href="https://ac.appcircle.io/wp-content/uploads/2020/07/Firebase-Test-Lab-Appcircle-4.png"><img class="alignnone wp-image-1411 size-full" src="https://ac.appcircle.io/wp-content/uploads/2020/07/Firebase-Test-Lab-Appcircle-4.png" alt="Google Cloud Platform" width="1440" height="800" srcset="https://ac.appcircle.io/wp-content/uploads/2020/07/Firebase-Test-Lab-Appcircle-4.png 1440w, https://ac.appcircle.io/wp-content/uploads/2020/07/Firebase-Test-Lab-Appcircle-4-300x167.png 300w, https://ac.appcircle.io/wp-content/uploads/2020/07/Firebase-Test-Lab-Appcircle-4-1030x572.png 1030w, https://ac.appcircle.io/wp-content/uploads/2020/07/Firebase-Test-Lab-Appcircle-4-768x427.png 768w, https://ac.appcircle.io/wp-content/uploads/2020/07/Firebase-Test-Lab-Appcircle-4-705x392.png 705w, https://ac.appcircle.io/wp-content/uploads/2020/07/Firebase-Test-Lab-Appcircle-4-450x250.png 450w" sizes="(max-width: 1440px) 100vw, 1440px" /></a>
As the final step, go to the <a href="https://console.developers.google.com/apis/library" target="_blank" rel="noopener noreferrer">Google Developers Console API Library page</a> and find and enable the following APIs:
<ul>
<li>Google Cloud Testing API</li>
<li>Cloud Tool Results API</li>
</ul>
<a href="https://ac.appcircle.io/wp-content/uploads/2020/07/Firebase-Test-Lab-Appcircle-5.png"><img class="alignnone wp-image-1412 size-full" src="https://ac.appcircle.io/wp-content/uploads/2020/07/Firebase-Test-Lab-Appcircle-5.png" alt="Cloud Tool Results API" width="1440" height="800" srcset="https://ac.appcircle.io/wp-content/uploads/2020/07/Firebase-Test-Lab-Appcircle-5.png 1440w, https://ac.appcircle.io/wp-content/uploads/2020/07/Firebase-Test-Lab-Appcircle-5-300x167.png 300w, https://ac.appcircle.io/wp-content/uploads/2020/07/Firebase-Test-Lab-Appcircle-5-1030x572.png 1030w, https://ac.appcircle.io/wp-content/uploads/2020/07/Firebase-Test-Lab-Appcircle-5-768x427.png 768w, https://ac.appcircle.io/wp-content/uploads/2020/07/Firebase-Test-Lab-Appcircle-5-705x392.png 705w, https://ac.appcircle.io/wp-content/uploads/2020/07/Firebase-Test-Lab-Appcircle-5-450x250.png 450w" sizes="(max-width: 1440px) 100vw, 1440px" /></a>
<h2>Firebase Test Lab Authentication Configuration in Appcircle CI/CD</h2>
To start, go to the environment variables section and add the service account JSON key created in the previous step as a <a href="https://docs.appcircle.io/environment-variables/managing-variables#create-environment-variable-groups-and-add-key-value-pairs" target="_blank" rel="noopener noreferrer">new environment variable</a>. Take a note of the variable name, which will be necessary in the workflow configuration.
<a href="https://ac.appcircle.io/wp-content/uploads/2020/07/Firebase-Test-Lab-Appcircle-6.png"><img class="alignnone wp-image-1413 size-full" src="https://ac.appcircle.io/wp-content/uploads/2020/07/Firebase-Test-Lab-Appcircle-6.png" alt="Appcircle Environment Variables" width="1440" height="800" srcset="https://ac.appcircle.io/wp-content/uploads/2020/07/Firebase-Test-Lab-Appcircle-6.png 1440w, https://ac.appcircle.io/wp-content/uploads/2020/07/Firebase-Test-Lab-Appcircle-6-300x167.png 300w, https://ac.appcircle.io/wp-content/uploads/2020/07/Firebase-Test-Lab-Appcircle-6-1030x572.png 1030w, https://ac.appcircle.io/wp-content/uploads/2020/07/Firebase-Test-Lab-Appcircle-6-768x427.png 768w, https://ac.appcircle.io/wp-content/uploads/2020/07/Firebase-Test-Lab-Appcircle-6-705x392.png 705w, https://ac.appcircle.io/wp-content/uploads/2020/07/Firebase-Test-Lab-Appcircle-6-450x250.png 450w" sizes="(max-width: 1440px) 100vw, 1440px" /></a>
Then <a href="https://docs.appcircle.io/environment-variables/managing-variables#use-environment-variable-groups-in-builds" target="_blank" rel="noopener noreferrer">select the related environment variable group</a> in the build configuration of the project that will be using Firebase Test Lab.
<a href="https://ac.appcircle.io/wp-content/uploads/2020/07/Firebase-Test-Lab-Appcircle-7.png"><img class="alignnone wp-image-1414 size-full" src="https://ac.appcircle.io/wp-content/uploads/2020/07/Firebase-Test-Lab-Appcircle-7.png" alt="Appcircle Environment Variables" width="1440" height="800" srcset="https://ac.appcircle.io/wp-content/uploads/2020/07/Firebase-Test-Lab-Appcircle-7.png 1440w, https://ac.appcircle.io/wp-content/uploads/2020/07/Firebase-Test-Lab-Appcircle-7-300x167.png 300w, https://ac.appcircle.io/wp-content/uploads/2020/07/Firebase-Test-Lab-Appcircle-7-1030x572.png 1030w, https://ac.appcircle.io/wp-content/uploads/2020/07/Firebase-Test-Lab-Appcircle-7-768x427.png 768w, https://ac.appcircle.io/wp-content/uploads/2020/07/Firebase-Test-Lab-Appcircle-7-705x392.png 705w, https://ac.appcircle.io/wp-content/uploads/2020/07/Firebase-Test-Lab-Appcircle-7-450x250.png 450w" sizes="(max-width: 1440px) 100vw, 1440px" /></a>
<h2>Build Workflow Configuration for Firebase Test Lab</h2>
To utilize Firebase Test Lab in your builds, open the <a href="https://docs.appcircle.io/workflows/why-to-use-workflows" target="_blank" rel="noopener noreferrer">workflow editor</a> and add the &#8220;Firebase Test Lab for Android&#8221; step after the build or sign steps. If you want to run instrumentation tests, also add the &#8220;Android Build for UI Testing&#8221; step before the Firebase Test Lab step.
<a href="https://ac.appcircle.io/wp-content/uploads/2020/07/Firebase-Test-Lab-Appcircle-8.png"><img class="alignnone wp-image-1415 size-full" src="https://ac.appcircle.io/wp-content/uploads/2020/07/Firebase-Test-Lab-Appcircle-8.png" alt="Appcircle Build Workflow Configuration" width="1440" height="800" srcset="https://ac.appcircle.io/wp-content/uploads/2020/07/Firebase-Test-Lab-Appcircle-8.png 1440w, https://ac.appcircle.io/wp-content/uploads/2020/07/Firebase-Test-Lab-Appcircle-8-300x167.png 300w, https://ac.appcircle.io/wp-content/uploads/2020/07/Firebase-Test-Lab-Appcircle-8-1030x572.png 1030w, https://ac.appcircle.io/wp-content/uploads/2020/07/Firebase-Test-Lab-Appcircle-8-768x427.png 768w, https://ac.appcircle.io/wp-content/uploads/2020/07/Firebase-Test-Lab-Appcircle-8-705x392.png 705w, https://ac.appcircle.io/wp-content/uploads/2020/07/Firebase-Test-Lab-Appcircle-8-450x250.png 450w" sizes="(max-width: 1440px) 100vw, 1440px" /></a>
If you want to use the UI Test Build output or the Signed Build output in Firebase Test Lab, add any of these steps before the Firebase Test Lab step and take a note of the output path of these steps. You will need this environment variable for testing configuration.
<a href="https://ac.appcircle.io/wp-content/uploads/2020/07/Firebase-Test-Lab-Appcircle-9.png"><img class="alignnone wp-image-1416 size-full" src="https://ac.appcircle.io/wp-content/uploads/2020/07/Firebase-Test-Lab-Appcircle-9.png" alt="Appcircle Build Workflow Configuration" width="1440" height="800" srcset="https://ac.appcircle.io/wp-content/uploads/2020/07/Firebase-Test-Lab-Appcircle-9.png 1440w, https://ac.appcircle.io/wp-content/uploads/2020/07/Firebase-Test-Lab-Appcircle-9-300x167.png 300w, https://ac.appcircle.io/wp-content/uploads/2020/07/Firebase-Test-Lab-Appcircle-9-1030x572.png 1030w, https://ac.appcircle.io/wp-content/uploads/2020/07/Firebase-Test-Lab-Appcircle-9-768x427.png 768w, https://ac.appcircle.io/wp-content/uploads/2020/07/Firebase-Test-Lab-Appcircle-9-705x392.png 705w, https://ac.appcircle.io/wp-content/uploads/2020/07/Firebase-Test-Lab-Appcircle-9-450x250.png 450w" sizes="(max-width: 1440px) 100vw, 1440px" /></a>
<a href="https://ac.appcircle.io/wp-content/uploads/2020/07/Firebase-Test-Lab-Appcircle-10.png"><img class="alignnone wp-image-1417 size-full" src="https://ac.appcircle.io/wp-content/uploads/2020/07/Firebase-Test-Lab-Appcircle-10.png" alt="Appcircle Build Workflow Configuration" width="1440" height="800" srcset="https://ac.appcircle.io/wp-content/uploads/2020/07/Firebase-Test-Lab-Appcircle-10.png 1440w, https://ac.appcircle.io/wp-content/uploads/2020/07/Firebase-Test-Lab-Appcircle-10-300x167.png 300w, https://ac.appcircle.io/wp-content/uploads/2020/07/Firebase-Test-Lab-Appcircle-10-1030x572.png 1030w, https://ac.appcircle.io/wp-content/uploads/2020/07/Firebase-Test-Lab-Appcircle-10-768x427.png 768w, https://ac.appcircle.io/wp-content/uploads/2020/07/Firebase-Test-Lab-Appcircle-10-705x392.png 705w, https://ac.appcircle.io/wp-content/uploads/2020/07/Firebase-Test-Lab-Appcircle-10-450x250.png 450w" sizes="(max-width: 1440px) 100vw, 1440px" /></a>
Before the build, the last task is to configure the Firebase Test Lab for Android step:
<ul>
<li>Project ID: Enter the name of the Firebase project created</li>
<li>Key File: Enter the name of the key file uploaded as an environment variable ($ is required before the key name).</li>
<li>Test Type: Select a test type. robo and instrumentation are supported.</li>
<li>Bucket Name: Enter a bucket name to store the test results in a Google Cloud Storage bucket.</li>
<li>APK Path: The default value is the APK produced by the &#8220;Android Build&#8221; step. You can specify a different environment variable to use the APK files produced in other steps.</li>
<li>Test APK Path: Specify the environment variable to the path of the APK build for UI testing</li>
<li>Extra Arguments: For further configuration of the test run. Please refer to the <a href="https://cloud.google.com/sdk/gcloud/reference/firebase/test/android/run" target="_blank" rel="noopener noreferrer">Google Cloud CLI Documentation</a>.</li>
</ul>
Once everything is set up, press save to save your step configuration. Then you can configure and run your build just like any other app.
<a href="https://ac.appcircle.io/wp-content/uploads/2020/07/Firebase-Test-Lab-Appcircle-11.png"><img class="alignnone wp-image-1418 size-full" src="https://ac.appcircle.io/wp-content/uploads/2020/07/Firebase-Test-Lab-Appcircle-11.png" alt="Appcircle Build Workflow Configuration" width="1224" height="850" srcset="https://ac.appcircle.io/wp-content/uploads/2020/07/Firebase-Test-Lab-Appcircle-11.png 1224w, https://ac.appcircle.io/wp-content/uploads/2020/07/Firebase-Test-Lab-Appcircle-11-300x208.png 300w, https://ac.appcircle.io/wp-content/uploads/2020/07/Firebase-Test-Lab-Appcircle-11-1030x715.png 1030w, https://ac.appcircle.io/wp-content/uploads/2020/07/Firebase-Test-Lab-Appcircle-11-768x533.png 768w, https://ac.appcircle.io/wp-content/uploads/2020/07/Firebase-Test-Lab-Appcircle-11-705x490.png 705w, https://ac.appcircle.io/wp-content/uploads/2020/07/Firebase-Test-Lab-Appcircle-11-450x313.png 450w" sizes="(max-width: 1224px) 100vw, 1224px" /></a>
<h2>Viewing the Firebase Test Lab Step Results</h2>
Once your build is done, you can view the results of the Firebase Test Lab step in the build logs.
<a href="https://ac.appcircle.io/wp-content/uploads/2020/07/Firebase-Test-Lab-Appcircle-12.png"><img class="alignnone wp-image-1419 size-full" src="https://ac.appcircle.io/wp-content/uploads/2020/07/Firebase-Test-Lab-Appcircle-12.png" alt="Appcircle Firebase Test Lab Step" width="1444" height="800" srcset="https://ac.appcircle.io/wp-content/uploads/2020/07/Firebase-Test-Lab-Appcircle-12.png 1444w, https://ac.appcircle.io/wp-content/uploads/2020/07/Firebase-Test-Lab-Appcircle-12-300x166.png 300w, https://ac.appcircle.io/wp-content/uploads/2020/07/Firebase-Test-Lab-Appcircle-12-1030x571.png 1030w, https://ac.appcircle.io/wp-content/uploads/2020/07/Firebase-Test-Lab-Appcircle-12-768x425.png 768w, https://ac.appcircle.io/wp-content/uploads/2020/07/Firebase-Test-Lab-Appcircle-12-705x391.png 705w, https://ac.appcircle.io/wp-content/uploads/2020/07/Firebase-Test-Lab-Appcircle-12-450x249.png 450w" sizes="(max-width: 1444px) 100vw, 1444px" /></a>
The full details of the tests are accessible in the <a href="https://console.firebase.google.com/" target="_blank" rel="noopener noreferrer">Firebase console</a> and in your Google Cloud Storage bucket for analysis.
<a href="https://ac.appcircle.io/wp-content/uploads/2020/07/Firebase-Test-Lab-Appcircle-13.png"><img class="alignnone wp-image-1420 size-full" src="https://ac.appcircle.io/wp-content/uploads/2020/07/Firebase-Test-Lab-Appcircle-13.png" alt="Firebase console" width="1423" height="800" srcset="https://ac.appcircle.io/wp-content/uploads/2020/07/Firebase-Test-Lab-Appcircle-13.png 1423w, https://ac.appcircle.io/wp-content/uploads/2020/07/Firebase-Test-Lab-Appcircle-13-300x169.png 300w, https://ac.appcircle.io/wp-content/uploads/2020/07/Firebase-Test-Lab-Appcircle-13-1030x579.png 1030w, https://ac.appcircle.io/wp-content/uploads/2020/07/Firebase-Test-Lab-Appcircle-13-768x432.png 768w, https://ac.appcircle.io/wp-content/uploads/2020/07/Firebase-Test-Lab-Appcircle-13-705x396.png 705w, https://ac.appcircle.io/wp-content/uploads/2020/07/Firebase-Test-Lab-Appcircle-13-450x253.png 450w" sizes="(max-width: 1423px) 100vw, 1423px" /></a>
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