Target specific SDK version

.github/workflows/integration_tests.yml

@@ -1,6 +1,15 @@
 name: Espresso Tests
 
-on: [ push, workflow_dispatch ]
+on:
+  workflow_dispatch:
+    inputs:
+      SDK_TARGET_VERSION:
+        description: 'Target a specific SDK version. Otherwise latest'
+        required: false
+  push:
+
+env:
+  SDK_TARGET_VERSION: ${{ github.event.inputs.SDK_TARGET_VERSION }}
 
 jobs:
   build:

app/src/androidTest/java/com/onfido/evergreen/RetryTestRule.kt

@@ -0,0 +1,45 @@
+package com.onfido.evergreen
+
+import android.util.Log
+import org.junit.rules.TestRule
+import org.junit.runner.Description
+import org.junit.runners.model.Statement
+
+/**
+ * Retry test rule used to retry test that failed.
+ * Retry failed test 3 times
+ */
+class RetryTestRule(val retryCount: Int = 3) : TestRule {
+
+    private val TAG = RetryTestRule::class.java.simpleName
+
+    override fun apply(base: Statement, description: Description): Statement {
+        return statement(base, description)
+    }
+
+    private fun statement(base: Statement, description: Description): Statement {
+        return object : Statement() {
+            @Throws(Throwable::class)
+            override fun evaluate() {
+                var caughtThrowable: Throwable? = null
+
+                // implement retry logic here
+                for (i in 0 until retryCount) {
+                    try {
+                        base.evaluate()
+                        return
+                    } catch (t: Throwable) {
+                        caughtThrowable = t
+                        Log.e(TAG, description.displayName + ": run " + (i + 1) + " failed")
+                    }
+                }
+
+                Log.e(
+                    TAG,
+                    description.displayName + ": giving up after " + retryCount + " failures"
+                )
+                throw caughtThrowable!!
+            }
+        }
+    }
+}

app/src/androidTest/java/com/onfido/evergreen/WebViewIntegrationTest.kt

@@ -27,6 +27,10 @@ class WebViewIntegrationTest {
     @get:Rule
     var activityScenarioRule = activityScenarioRule<MainActivity>()
 
+    @Rule
+    @JvmField
+    val mRetryTestRule = RetryTestRule()
+
     @Test
     fun openApp() {
         onView(withId(R.id.webview)).check(matches(isDisplayed()))

app/src/main/java/com/onfido/evergreen/MainActivity.kt

@@ -28,7 +28,7 @@ import java.text.SimpleDateFormat
 import java.util.Date
 
 data class Configuration(
-    val version: String = "latest",
+    val version: String = System.getenv("SDK_TARGET_VERSION") ?: "latest",
     val url: String? = null
 )