Add test for dialog

android/app/src/test/kotlin/net/mullvad/mullvadvpn/viewmodel/VoucherDialogViewModelTest.kt

@@ -0,0 +1,71 @@
+package net.mullvad.mullvadvpn.viewmodel
+
+import android.content.res.Resources
+import io.mockk.coEvery
+import io.mockk.coVerify
+import io.mockk.every
+import io.mockk.mockk
+import io.mockk.mockkStatic
+import io.mockk.unmockkAll
+import kotlinx.coroutines.test.runTest
+import net.mullvad.mullvadvpn.lib.common.test.TestCoroutineRule
+import net.mullvad.mullvadvpn.model.VoucherSubmissionError
+import net.mullvad.mullvadvpn.model.VoucherSubmissionResult
+import net.mullvad.mullvadvpn.ui.serviceconnection.ServiceConnectionContainer
+import net.mullvad.mullvadvpn.ui.serviceconnection.ServiceConnectionManager
+import net.mullvad.mullvadvpn.ui.serviceconnection.VoucherRedeemer
+import org.junit.After
+import org.junit.Before
+import org.junit.Rule
+import org.junit.Test
+
+class VoucherDialogViewModelTest {
+    @get:Rule val testCoroutineRule = TestCoroutineRule()
+
+    private val mockServiceConnectionManager: ServiceConnectionManager = mockk()
+    private val mockVoucherRedeemer: VoucherRedeemer = mockk()
+    private val mockServiceConnectionContainer: ServiceConnectionContainer = mockk()
+    private val mockResources: Resources = mockk()
+
+    private val mockVoucherSubmissionErrorResult: VoucherSubmissionResult =
+        VoucherSubmissionResult.Error(VoucherSubmissionError.OtherError)
+
+    private lateinit var viewModel: VoucherDialogViewModel
+
+    @Before
+    fun setUp() {
+        mockkStatic(CACHE_EXTENSION_CLASS)
+        every { mockServiceConnectionManager.connectionState.value.readyContainer() } returns
+            mockServiceConnectionContainer
+        every { mockServiceConnectionContainer.voucherRedeemer } returns mockVoucherRedeemer
+
+        viewModel =
+            VoucherDialogViewModel(
+                serviceConnectionManager = mockServiceConnectionManager,
+                resources = mockResources
+            )
+    }
+
+    @After
+    fun tearDown() {
+        unmockkAll()
+    }
+
+    @Test
+    fun test_submit_invalid_voucher() = runTest {
+        val voucher = DUMMY_VALID_VOUCHER
+        val dummyStringResource = DUMMY_STRING_RESOURCE
+        // Arrange
+        every { mockResources.getString(any()) } returns dummyStringResource
+        coEvery { mockVoucherRedeemer.submit(voucher) } returns mockVoucherSubmissionErrorResult
+        // Act, Assert
+        viewModel.onRedeem(voucher)
+        coVerify(exactly = 1) { mockVoucherRedeemer.submit(voucher) }
+    }
+
+    companion object {
+        private const val CACHE_EXTENSION_CLASS = "net.mullvad.mullvadvpn.util.CacheExtensionsKt"
+        private const val DUMMY_VALID_VOUCHER = "DUMMY_VALID_VOUCHER"
+        private const val DUMMY_STRING_RESOURCE = "DUMMY_STRING_RESOURCE"
+    }
+}