Add more testing

Author: jamesnrokt

.github/workflows/pull-request.yml

@@ -54,10 +54,10 @@ jobs:
             adb uninstall com.mparticle.legacyTest || true
             adb uninstall com.mparticle.test || true
 
-            ./gradlew connectedCheck --stacktrace
-            
-            ./gradlew :android-core:cAT -Pandroid.testInstrumentationRunnerArguments.androidx.benchmark.enabledRules=none
-            ./gradlew :android-kit-base:cAT -Pandroid.testInstrumentationRunnerArguments.androidx.benchmark.enabledRules=none
+            ./gradlew connectedCheck --info --stacktrace
+
+            ./gradlew :android-core:cAT -Pandroid.testInstrumentationRunnerArguments.androidx.benchmark.enabledRules=none --info
+            ./gradlew :android-kit-base:cAT -Pandroid.testInstrumentationRunnerArguments.androidx.benchmark.enabledRules=none --info
       - name: "Archive Instrumented Tests Results"
         uses: actions/upload-artifact@v4
         if: always()

android-core/build.gradle

@@ -163,6 +163,7 @@ dependencies {
     testImplementation "org.jetbrains.kotlinx:kotlinx-coroutines-test:$kotlin_version"
 
     androidTestImplementation project(':testutils')
+    androidTestImplementation 'org.mockito:mockito-android:2.28.2'
     if (useOrchestrator()) {
         androidTestImplementation 'androidx.test:runner:1.4.0'
         androidTestUtil 'androidx.test:orchestrator:1.4.2'

android-core/src/androidTest/kotlin/com/mparticle/InstallReferrerHelperTest.kt

@@ -0,0 +1,69 @@
+package com.mparticle
+
+import androidx.test.ext.junit.runners.AndroidJUnit4
+import com.mparticle.testutils.BaseCleanInstallEachTest
+import org.junit.Assert.assertEquals
+import org.junit.Assert.assertNull
+import org.junit.Before
+import org.junit.Test
+import org.junit.runner.RunWith
+import org.mockito.Mockito
+import org.mockito.Mockito.verify
+
+@RunWith(AndroidJUnit4::class)
+class InstallReferrerHelperTest : BaseCleanInstallEachTest() {
+
+    @Before
+    fun before() {
+        InstallReferrerHelper.setInstallReferrer(mContext, null)
+    }
+
+    @Test
+    fun testSetAndGetInstallReferrer() {
+        val referrer = "test_referrer"
+        InstallReferrerHelper.setInstallReferrer(mContext, referrer)
+        assertEquals(referrer, InstallReferrerHelper.getInstallReferrer(mContext))
+    }
+
+    @Test
+    fun testGetInstallReferrerWhenNotSet() {
+        assertNull(InstallReferrerHelper.getInstallReferrer(mContext))
+    }
+
+    @Test
+    fun testSetNullInstallReferrer() {
+        InstallReferrerHelper.setInstallReferrer(mContext, "previous_referrer")
+        InstallReferrerHelper.setInstallReferrer(mContext, null)
+        assertNull(InstallReferrerHelper.getInstallReferrer(mContext))
+    }
+
+    @Test
+    fun testSetEmptyInstallReferrer() {
+        InstallReferrerHelper.setInstallReferrer(mContext, "previous_referrer")
+        InstallReferrerHelper.setInstallReferrer(mContext, "")
+        assertEquals("", InstallReferrerHelper.getInstallReferrer(mContext))
+    }
+
+    @Test
+    fun testFetchInstallReferrerAlreadyPresent() {
+        val initialReferrer = "was already here"
+        InstallReferrerHelper.setInstallReferrer(mContext, initialReferrer)
+        val callback = Mockito.mock(InstallReferrerHelper.InstallReferrerCallback::class.java)
+        InstallReferrerHelper.fetchInstallReferrer(mContext, callback)
+
+        verify(callback, Mockito.never()).onReceived(Mockito.any())
+        verify(callback, Mockito.never()).onFailed()
+
+        assertEquals(initialReferrer, InstallReferrerHelper.getInstallReferrer(mContext))
+    }
+
+    @Test
+    fun testFetchInstallReferrerFails() {
+        assertNull(InstallReferrerHelper.getInstallReferrer(mContext))
+        val callback = Mockito.mock(InstallReferrerHelper.InstallReferrerCallback::class.java)
+        InstallReferrerHelper.fetchInstallReferrer(mContext, callback)
+
+        verify(callback).onFailed()
+        verify(callback, Mockito.never()).onReceived(Mockito.anyString())
+    }
+}