Add beta version usecase tests

domains/store/src/main/kotlin/app/dapk/st/domain/ApplicationPreferences.kt

@@ -16,6 +16,5 @@ class ApplicationPreferences(
 
 }
 
-@JvmInline
-value class ApplicationVersion(val value: Int)
+data class ApplicationVersion(val value: Int)
 

features/home/src/main/kotlin/app/dapk/st/home/BetaVersionUpgradeUseCase.kt

@@ -20,7 +20,8 @@ class BetaVersionUpgradeUseCase(
     }
 
     private suspend fun hasChangedVersion(): Boolean {
-        val previousVersion = applicationPreferences.readVersion()?.value
+        val readVersion = applicationPreferences.readVersion()
+        val previousVersion = readVersion?.value
         val currentVersion = buildMeta.versionCode
         return when (previousVersion) {
             null -> false

features/home/src/test/kotlin/app/dapk/st/home/BetaVersionUpgradeUseCaseTest.kt

@@ -0,0 +1,68 @@
+package app.dapk.st.home
+
+import app.dapk.st.core.BuildMeta
+import app.dapk.st.domain.ApplicationPreferences
+import app.dapk.st.domain.ApplicationVersion
+import io.mockk.coEvery
+import io.mockk.mockk
+import kotlinx.coroutines.async
+import kotlinx.coroutines.test.runTest
+import org.amshove.kluent.shouldBeEqualTo
+import org.junit.Test
+import test.delegateReturn
+import test.expect
+
+class BetaVersionUpgradeUseCaseTest {
+
+    private val buildMeta = BuildMeta(versionName = "a-version-name", versionCode = 100, isDebug = false)
+    private val fakeApplicationPreferences = FakeApplicationPreferences()
+
+    private val useCase = BetaVersionUpgradeUseCase(
+        fakeApplicationPreferences.instance,
+        buildMeta
+    )
+
+    @Test
+    fun `given same stored version, when hasVersionChanged then is false`() = runTest {
+        fakeApplicationPreferences.givenVersion().returns(ApplicationVersion(buildMeta.versionCode))
+
+        val result = useCase.hasVersionChanged()
+
+        result shouldBeEqualTo false
+    }
+
+    // Should be impossible
+    @Test
+    fun `given higher stored version, when hasVersionChanged then is false`() = runTest {
+        fakeApplicationPreferences.givenVersion().returns(ApplicationVersion(buildMeta.versionCode + 1))
+
+        val result = useCase.hasVersionChanged()
+
+        result shouldBeEqualTo false
+    }
+
+    @Test
+    fun `given lower stored version, when hasVersionChanged then is true`() = runTest {
+        fakeApplicationPreferences.givenVersion().returns(ApplicationVersion(buildMeta.versionCode - 1))
+
+        val result = useCase.hasVersionChanged()
+
+        result shouldBeEqualTo true
+    }
+
+    @Test
+    fun `given version has changed, when waiting, then blocks until notified of upgrade`() = runTest {
+        fakeApplicationPreferences.givenVersion().returns(ApplicationVersion(buildMeta.versionCode - 1))
+        fakeApplicationPreferences.instance.expect { it.setVersion(ApplicationVersion(buildMeta.versionCode)) }
+
+        val waitUntilReady = async { useCase.waitUnitReady() }
+        async { useCase.notifyUpgraded() }
+        waitUntilReady.await()
+    }
+}
+
+private class FakeApplicationPreferences {
+    val instance = mockk<ApplicationPreferences>()
+
+    fun givenVersion() = coEvery { instance.readVersion() }.delegateReturn()
+}

features/home/src/test/kotlin/app/dapk/st/home/state/HomeReducerTest.kt

@@ -0,0 +1,224 @@
+package app.dapk.st.home.state
+
+import app.dapk.st.directory.state.ComponentLifecycle
+import app.dapk.st.directory.state.DirectorySideEffect
+import app.dapk.st.domain.StoreCleaner
+import app.dapk.st.engine.Me
+import app.dapk.st.home.BetaVersionUpgradeUseCase
+import app.dapk.st.matrix.common.HomeServerUrl
+import app.dapk.st.profile.state.ProfileAction
+import fake.FakeChatEngine
+import fake.FakeJobBag
+import fixture.aRoomId
+import fixture.aRoomInvite
+import fixture.aUserId
+import io.mockk.mockk
+import org.junit.Test
+import test.*
+
+private val A_ME = Me(aUserId(), displayName = null, avatarUrl = null, homeServerUrl = HomeServerUrl("ignored"))
+private val A_SIGNED_IN_STATE = HomeScreenState.SignedIn(
+    HomeScreenState.Page.Directory,
+    me = A_ME,
+    invites = 0,
+)
+
+class HomeReducerTest {
+
+    private val fakeStoreCleaner = FakeStoreCleaner()
+    private val fakeChatEngine = FakeChatEngine()
+    private val fakeBetaVersionUpgradeUseCase = FakeBetaVersionUpgradeUseCase()
+    private val fakeJobBag = FakeJobBag()
+
+    private val runReducerTest = testReducer { fakeEventSource ->
+        homeReducer(
+            fakeChatEngine,
+            fakeStoreCleaner,
+            fakeBetaVersionUpgradeUseCase.instance,
+            fakeJobBag.instance,
+            fakeEventSource,
+        )
+    }
+
+    @Test
+    fun `initial state is loading`() = runReducerTest {
+        assertInitialState(HomeScreenState.Loading)
+    }
+
+    @Test
+    fun `when UpdateState, then replaces state`() = runReducerTest {
+        reduce(HomeAction.UpdateState(HomeScreenState.SignedOut))
+
+        assertOnlyStateChange(HomeScreenState.SignedOut)
+    }
+
+    @Test
+    fun `given SignedIn, when UpdateInviteCount, then updates invite count`() = runReducerTest {
+        setState(A_SIGNED_IN_STATE)
+
+        reduce(HomeAction.UpdateInvitesCount(invitesCount = 90))
+
+        assertOnlyStateChange(A_SIGNED_IN_STATE.copy(invites = 90))
+    }
+
+    @Test
+    fun `when ScrollToTop, then forwards to directory scroll event`() = runReducerTest {
+        reduce(HomeAction.ScrollToTop)
+
+        assertOnlyDispatches(DirectorySideEffect.ScrollToTop)
+    }
+
+    @Test
+    fun `when ClearCache, then clears store cache, upgrades and relaunches`() = runReducerTest {
+        fakeStoreCleaner.expect { it.cleanCache(removeCredentials = false) }
+        fakeBetaVersionUpgradeUseCase.instance.expect { it.notifyUpgraded() }
+
+        reduce(HomeAction.ClearCache)
+
+        assertOnlyEvents(HomeEvent.Relaunch)
+    }
+
+    @Test
+    fun `given SignedIn and invites update, when Visible, then show content and update on invite changes`() = runReducerTest {
+        fakeChatEngine.givenIsSignedIn().returns(true)
+
+        reduce(HomeAction.LifecycleVisible)
+
+        assertEvents(HomeEvent.OnShowContent)
+        assertDispatches(HomeAction.InitialHome)
+        assertNoStateChange()
+    }
+
+    @Test
+    fun `given SignedOut and invites update, when Visible, then show content and update on invite changes`() = runReducerTest {
+        fakeChatEngine.givenIsSignedIn().returns(false)
+
+        reduce(HomeAction.LifecycleVisible)
+
+        assertOnlyDispatches(HomeAction.UpdateState(HomeScreenState.SignedOut))
+    }
+
+    @Test
+    fun `given SignedIn, when InitialHome, then updates me state and listens to invite changes`() = runReducerTest {
+        setState(A_SIGNED_IN_STATE)
+        fakeChatEngine.givenMe(forceRefresh = false).returns(A_ME)
+        givenInvites(count = 5)
+
+        reduce(HomeAction.InitialHome)
+
+        assertOnlyDispatches(
+            HomeAction.UpdateToSignedIn(A_ME),
+            HomeAction.UpdateInvitesCount(5)
+        )
+    }
+
+    @Test
+    fun `given SignedIn, when UpdateToSignedIn, then updates me state`() = runReducerTest {
+        setState(A_SIGNED_IN_STATE)
+        val expectedMe = A_ME.copy(aUserId("another-user"))
+
+        reduce(HomeAction.UpdateToSignedIn(expectedMe))
+
+        assertOnlyStateChange(A_SIGNED_IN_STATE.copy(me = expectedMe))
+    }
+
+    @Test
+    fun `given Loading, when UpdateToSignedIn, then set SignedIn and updates me state`() = runReducerTest {
+        setState(HomeScreenState.Loading)
+        val expectedMe = A_ME.copy(aUserId("another-user"))
+
+        reduce(HomeAction.UpdateToSignedIn(expectedMe))
+
+        assertOnlyStateChange(A_SIGNED_IN_STATE.copy(me = expectedMe))
+    }
+
+    @Test
+    fun `given SignedOut, when UpdateToSignedIn, then set SignedIn and updates me state`() = runReducerTest {
+        setState(HomeScreenState.SignedOut)
+        val expectedMe = A_ME.copy(aUserId("another-user"))
+
+        reduce(HomeAction.UpdateToSignedIn(expectedMe))
+
+        assertOnlyStateChange(A_SIGNED_IN_STATE.copy(me = expectedMe))
+    }
+
+    @Test
+    fun `when LoggedIn, then emit show content and fetch initial home`() = runReducerTest {
+        setState(HomeScreenState.SignedOut)
+        givenInvites(count = 0)
+
+        reduce(HomeAction.LoggedIn)
+
+        assertDispatches(HomeAction.InitialHome)
+        assertEvents(HomeEvent.OnShowContent)
+        assertNoStateChange()
+    }
+
+    @Test
+    fun `given SignedOut, when ChangePage, then does nothing`() = runReducerTest {
+        setState(HomeScreenState.SignedOut)
+
+        reduce(HomeAction.ChangePage(HomeScreenState.Page.Directory))
+
+        assertNoChanges()
+    }
+
+    @Test
+    fun `given Loading, when ChangePage, then does nothing`() = runReducerTest {
+        setState(HomeScreenState.Loading)
+
+        reduce(HomeAction.ChangePage(HomeScreenState.Page.Directory))
+
+        assertNoChanges()
+    }
+
+    @Test
+    fun `given SignedIn, when ChangePage to same page, then does nothing`() = runReducerTest {
+        val page = HomeScreenState.Page.Directory
+        setState(A_SIGNED_IN_STATE.copy(page = page))
+
+        reduce(HomeAction.ChangePage(page))
+
+        assertNoChanges()
+    }
+
+    @Test
+    fun `given SignedIn, when ChangePage to different page, then updates page and emits side effect`() = runReducerTest {
+        val expectedPage = HomeScreenState.Page.Profile
+        setState(A_SIGNED_IN_STATE.copy(page = HomeScreenState.Page.Directory))
+
+        reduce(HomeAction.ChangePage(expectedPage))
+
+        assertStateChange(A_SIGNED_IN_STATE.copy(page = expectedPage))
+        assertDispatches(HomeAction.ChangePageSideEffect(expectedPage))
+    }
+
+    @Test
+    fun `when ChangePageSide is Directory, then does nothing`() = runReducerTest {
+        reduce(HomeAction.ChangePageSideEffect(HomeScreenState.Page.Directory))
+
+        assertNoChanges()
+    }
+
+    @Test
+    fun `when ChangePageSide is Profile, then mark directory gone and resets profile`() = runReducerTest {
+        reduce(HomeAction.ChangePageSideEffect(HomeScreenState.Page.Profile))
+
+        assertOnlyDispatches(
+            ComponentLifecycle.OnGone,
+            ProfileAction.Reset
+        )
+    }
+
+    private fun givenInvites(count: Int) {
+        fakeJobBag.instance.expect { it.replace("invites-count", any()) }
+        val invites = List(count) { aRoomInvite(roomId = aRoomId(it.toString())) }
+        fakeChatEngine.givenInvites().emits(invites)
+    }
+}
+
+class FakeStoreCleaner : StoreCleaner by mockk()
+
+class FakeBetaVersionUpgradeUseCase {
+    val instance = mockk<BetaVersionUpgradeUseCase>()
+}