Use MainCoroutineRule in PwaOnboardingObserverTest

app/src/test/java/org/mozilla/fenix/shortcut/PwaOnboardingObserverTest.kt

@@ -13,15 +13,18 @@ import io.mockk.mockk
 import io.mockk.spyk
 import io.mockk.verify
 import kotlinx.coroutines.ExperimentalCoroutinesApi
+import kotlinx.coroutines.test.TestCoroutineDispatcher
 import mozilla.components.browser.state.action.ContentAction
 import mozilla.components.browser.state.state.BrowserState
 import mozilla.components.browser.state.state.createTab
 import mozilla.components.browser.state.store.BrowserStore
 import mozilla.components.feature.pwa.WebAppUseCases
 import mozilla.components.support.test.ext.joinBlocking
+import mozilla.components.support.test.rule.MainCoroutineRule
 import org.junit.After
 import org.junit.Before
 import org.junit.Ignore
+import org.junit.Rule
 import org.junit.Test
 import org.junit.runner.RunWith
 import org.mozilla.fenix.helpers.FenixRobolectricTestRunner
@@ -38,6 +41,11 @@ class PwaOnboardingObserverTest {
     private lateinit var settings: Settings
     private lateinit var webAppUseCases: WebAppUseCases
 
+    private val testDispatcher = TestCoroutineDispatcher()
+
+    @get:Rule
+    val coroutinesTestRule = MainCoroutineRule(testDispatcher)
+
     @Before
     fun setUp() {
         store = BrowserStore(
@@ -53,13 +61,13 @@ class PwaOnboardingObserverTest {
         settings = mockk(relaxed = true)
         webAppUseCases = mockk(relaxed = true)
 
-        pwaOnboardingObserver = spyk(PwaOnboardingObserver(
+        pwaOnboardingObserver = PwaOnboardingObserver(
             store = store,
             lifecycleOwner = lifecycleOwner,
             navController = navigationController,
             settings = settings,
             webAppUseCases = webAppUseCases
-        ))
+        )
         every { pwaOnboardingObserver.navigateToPwaOnboarding() } returns Unit
     }
 
@@ -69,7 +77,6 @@ class PwaOnboardingObserverTest {
     }
 
     @Test
-    @Ignore("With latest Robolectric/mockk: Settings().incrementVisitedInstallableCount()) was not called")
     fun `GIVEN cfr should not yet be shown WHEN installable page is loaded THEN counter is incremented`() {
         every { webAppUseCases.isInstallable() } returns true
         every { settings.userKnowsAboutPwas } returns false
@@ -82,7 +89,6 @@ class PwaOnboardingObserverTest {
     }
 
     @Test
-    @Ignore("With latest Robolectric/mockk: Settings().incrementVisitedInstallableCount()) was not called")
     fun `GIVEN cfr should be shown WHEN installable page is loaded THEN we navigate to onboarding fragment`() {
         every { webAppUseCases.isInstallable() } returns true
         every { settings.userKnowsAboutPwas } returns false