MBL-1306: Added tests (#2029)

app/src/test/java/com/kickstarter/viewmodels/LatePledgeCheckoutViewModelTest.kt

@@ -2,12 +2,24 @@ package com.kickstarter.viewmodels
 
 import com.kickstarter.KSRobolectricTestCase
 import com.kickstarter.libs.Environment
+import com.kickstarter.libs.MockCurrentUserV2
 import com.kickstarter.libs.utils.EventName
 import com.kickstarter.mock.factories.ProjectDataFactory
 import com.kickstarter.mock.factories.ProjectFactory
 import com.kickstarter.mock.factories.RewardFactory
 import com.kickstarter.mock.factories.ShippingRuleFactory
+import com.kickstarter.mock.factories.StoredCardFactory
+import com.kickstarter.mock.factories.UserFactory
+import com.kickstarter.mock.services.MockApolloClientV2
+import com.kickstarter.models.StoredCard
+import com.kickstarter.models.UserPrivacy
+import com.kickstarter.viewmodels.projectpage.LatePledgeCheckoutUIState
 import com.kickstarter.viewmodels.projectpage.LatePledgeCheckoutViewModel
+import io.reactivex.Observable
+import kotlinx.coroutines.flow.toList
+import kotlinx.coroutines.launch
+import kotlinx.coroutines.test.UnconfinedTestDispatcher
+import kotlinx.coroutines.test.runTest
 import org.junit.Test
 
 class LatePledgeCheckoutViewModelTest : KSRobolectricTestCase() {
@@ -70,4 +82,71 @@ class LatePledgeCheckoutViewModelTest : KSRobolectricTestCase() {
 
         this.segmentTrack.assertValue(EventName.CTA_CLICKED.eventName)
     }
+
+    @Test
+    fun `Test VM init state when user and stored cards requests succeed will generate state with saved cards and user email`() = runTest {
+        val discover = StoredCardFactory.discoverCard()
+        val visa = StoredCardFactory.visa()
+        val cardsList = listOf(visa, discover)
+
+        val currentUser = MockCurrentUserV2(UserFactory.user())
+        setUpEnvironment(
+            environment()
+                .toBuilder()
+                .currentUserV2(currentUser) // - mock the user
+                .apolloClientV2(object : MockApolloClientV2() {
+                    override fun getStoredCards(): Observable<List<StoredCard>> { // - mock the stored cards
+                        return Observable.just(cardsList)
+                    }
+
+                    override fun userPrivacy(): Observable<UserPrivacy> { // - mock the user email and name
+                        return Observable.just(
+                            UserPrivacy("Hola holita", "[email protected]", true, true, true, true, "MXN")
+                        )
+                    }
+                }).build()
+        )
+
+        val state = mutableListOf<LatePledgeCheckoutUIState>()
+        backgroundScope.launch(UnconfinedTestDispatcher(testScheduler)) {
+            viewModel.latePledgeCheckoutUIState.toList(state)
+        }
+
+        assertEquals(state.size, 2)
+        assertEquals(state.last().userEmail, "[email protected]")
+        assertEquals(state.last().storeCards, cardsList)
+        assertEquals(state.last().storeCards.first(), cardsList.first())
+        assertEquals(state.last().storeCards.last(), cardsList.last())
+        assertEquals(state.last().isLoading, false)
+    }
+
+    @Test
+    fun `Test VM error init state when user or stored cards requests fail will generate state without saved cards or user email`() = runTest {
+
+        val currentUser = MockCurrentUserV2(UserFactory.user())
+        setUpEnvironment(
+            environment()
+                .toBuilder()
+                .currentUserV2(currentUser) // - mock the user
+                .apolloClientV2(object : MockApolloClientV2() {
+                    override fun getStoredCards(): Observable<List<StoredCard>> { // - mock the stored cards
+                        return Observable.error(Throwable("Something went wrong"))
+                    }
+
+                    override fun userPrivacy(): Observable<UserPrivacy> { // - mock the user email and name
+                        return Observable.error(Throwable("Something went wrong"))
+                    }
+                }).build()
+        )
+
+        val state = mutableListOf<LatePledgeCheckoutUIState>()
+
+        backgroundScope.launch(UnconfinedTestDispatcher(testScheduler)) {
+            viewModel.latePledgeCheckoutUIState.toList(state)
+        }
+
+        assertEquals(state.size, 2)
+        assertEquals(state.last().userEmail, "")
+        assertEquals(state.last().storeCards, emptyList<StoredCard>())
+    }
 }