Add changelog dialog to android

1 files changed, 97 insertions, 0 deletions

diff --git a/android/app/src/test/kotlin/net/mullvad/mullvadvpn/viewmodel/ChangelogViewModelTest.kt b/android/app/src/test/kotlin/net/mullvad/mullvadvpn/viewmodel/ChangelogViewModelTest.kt
new file mode 100644
index 0000000000..eafac23bfc
--- /dev/null
+++ b/android/app/src/test/kotlin/net/mullvad/mullvadvpn/viewmodel/ChangelogViewModelTest.kt
@@ -0,0 +1,97 @@
+package net.mullvad.mullvadvpn.viewmodel
+
+import app.cash.turbine.test
+import io.mockk.MockKAnnotations
+import io.mockk.Runs
+import io.mockk.every
+import io.mockk.impl.annotations.MockK
+import io.mockk.just
+import io.mockk.mockkStatic
+import io.mockk.unmockkAll
+import io.mockk.verify
+import junit.framework.Assert
+import kotlin.test.assertEquals
+import kotlinx.coroutines.test.runBlockingTest
+import net.mullvad.mullvadvpn.repository.ChangelogRepository
+import org.junit.After
+import org.junit.Before
+import org.junit.Test
+
+class ChangelogViewModelTest {
+
+    @MockK
+    private lateinit var mockedChangelogRepository: ChangelogRepository
+
+    private lateinit var viewModel: ChangelogViewModel
+
+    @Before
+    fun setup() {
+        MockKAnnotations.init(this)
+        mockkStatic(EVENT_NOTIFIER_EXTENSION_CLASS)
+        every {
+            mockedChangelogRepository.setVersionCodeOfMostRecentChangelogShowed(any())
+        } just Runs
+        viewModel = ChangelogViewModel(mockedChangelogRepository, 1, false)
+    }
+
+    @After
+    fun teardown() {
+        unmockkAll()
+    }
+
+    @Test
+    fun testInitialState() = runBlockingTest {
+        // Arrange, Act, Assert
+        viewModel.changelogDialogUiState.test {
+            Assert.assertEquals(ChangelogDialogUiState.Hide, awaitItem())
+        }
+    }
+
+    @Test
+    fun testShowAndDismissChangelogDialog() = runBlockingTest {
+        viewModel.changelogDialogUiState.test {
+            // Arrange
+            val fakeList = listOf("test")
+            every {
+                mockedChangelogRepository.getVersionCodeOfMostRecentChangelogShowed()
+            } returns -1
+            every { mockedChangelogRepository.getLastVersionChanges() } returns fakeList
+
+            // Assert initial ui state
+            assertEquals(ChangelogDialogUiState.Hide, awaitItem())
+
+            // Refresh and verify that the dialog should be shown
+            viewModel.refreshChangelogDialogUiState()
+            assertEquals(ChangelogDialogUiState.Show(fakeList), awaitItem())
+
+            // Dismiss dialog and verify that the dialog should be hidden
+            viewModel.dismissChangelogDialog()
+            assertEquals(ChangelogDialogUiState.Hide, awaitItem())
+            verify { mockedChangelogRepository.setVersionCodeOfMostRecentChangelogShowed(1) }
+        }
+    }
+
+    @Test
+    fun testShowCaseChangelogWithEmptyListDialog() = runBlockingTest {
+        viewModel.changelogDialogUiState.test {
+            // Arrange
+            val fakeEmptyList = emptyList<String>()
+            every {
+                mockedChangelogRepository.getVersionCodeOfMostRecentChangelogShowed()
+            } returns -1
+            every { mockedChangelogRepository.getLastVersionChanges() } returns fakeEmptyList
+
+            // Assert initial ui state
+            assertEquals(ChangelogDialogUiState.Hide, awaitItem())
+
+            // Refresh and verify that the Ui state remain same due list being empty
+            viewModel.refreshChangelogDialogUiState()
+            expectNoEvents()
+        }
+    }
+
+    companion object {
+        private const val EVENT_NOTIFIER_EXTENSION_CLASS =
+            "net.mullvad.talpid.util.EventNotifierExtensionsKt"
+    }
+}