BIT-1234: Add Account button should appear in switcher on Login (#402)

app/src/main/java/com/x8bit/bitwarden/ui/auth/feature/login/LoginScreen.kt

@@ -152,11 +152,10 @@ fun LoginScreen(
             onLogoutAccountClick = remember(viewModel) {
                 { viewModel.trySendAction(LoginAction.LogoutAccountClick(it)) }
             },
-            onAddAccountClick = {
-                // Not available
+            onAddAccountClick = remember(viewModel) {
+                { viewModel.trySendAction(LoginAction.AddAccountClick) }
             },
             onDismissRequest = { isAccountMenuVisible = false },
-            isAddAccountAvailable = false,
             topAppBarScrollBehavior = scrollBehavior,
             modifier = Modifier
                 .padding(innerPadding)

app/src/main/java/com/x8bit/bitwarden/ui/auth/feature/login/LoginViewModel.kt

@@ -70,6 +70,7 @@ class LoginViewModel @Inject constructor(
 
     override fun handleAction(action: LoginAction) {
         when (action) {
+            LoginAction.AddAccountClick -> handleAddAccountClicked()
             is LoginAction.LockAccountClick -> handleLockAccountClicked(action)
             is LoginAction.LogoutAccountClick -> handleLogoutAccountClicked(action)
             is LoginAction.SwitchAccountClick -> handleSwitchAccountClicked(action)
@@ -90,6 +91,11 @@ class LoginViewModel @Inject constructor(
         }
     }
 
+    private fun handleAddAccountClicked() {
+        // Since we are already in the login flow we can just go back to the Landing Screen
+        sendEvent(LoginEvent.NavigateBack)
+    }
+
     private fun handleLockAccountClicked(action: LoginAction.LockAccountClick) {
         vaultRepository.lockVaultIfNecessary(userId = action.accountSummary.userId)
     }
@@ -247,6 +253,11 @@ sealed class LoginEvent {
  */
 sealed class LoginAction {
 
+    /**
+     * The user has clicked the add account button.
+     */
+    data object AddAccountClick : LoginAction()
+
     /**
      * Indicates the user has clicked on the given [accountSummary] information in order to lock
      * the associated account's vault.

app/src/test/java/com/x8bit/bitwarden/ui/auth/feature/login/LoginScreenTest.kt

@@ -26,6 +26,7 @@ import com.x8bit.bitwarden.ui.util.assertSwitcherIsNotDisplayed
 import com.x8bit.bitwarden.ui.util.performAccountClick
 import com.x8bit.bitwarden.ui.util.performAccountIconClick
 import com.x8bit.bitwarden.ui.util.performAccountLongClick
+import com.x8bit.bitwarden.ui.util.performAddAccountClick
 import com.x8bit.bitwarden.ui.util.performLockAccountClick
 import com.x8bit.bitwarden.ui.util.performLogoutAccountClick
 import com.x8bit.bitwarden.ui.util.performLogoutAccountConfirmationClick
@@ -86,7 +87,6 @@ class LoginScreenTest : BaseComposeTest() {
 
         composeTestRule.assertSwitcherIsDisplayed(
             accountSummaries = accountSummaries,
-            isAddAccountButtonVisible = false,
         )
     }
 
@@ -110,6 +110,24 @@ class LoginScreenTest : BaseComposeTest() {
         )
     }
 
+    @Suppress("MaxLineLength")
+    @Test
+    fun `add account click in the account switcher should send AddAccountClick and close switcher`() {
+        // Open the Account Switcher
+        val accountSummaries = listOf(ACTIVE_ACCOUNT_SUMMARY)
+        mutableStateFlow.update {
+            it.copy(accountSummaries = accountSummaries)
+        }
+        composeTestRule.performAccountIconClick()
+
+        composeTestRule.performAddAccountClick()
+
+        verify { viewModel.trySendAction(LoginAction.AddAccountClick) }
+        composeTestRule.assertSwitcherIsNotDisplayed(
+            accountSummaries = accountSummaries,
+        )
+    }
+
     @Suppress("MaxLineLength")
     @Test
     fun `account long click in the account switcher should show the lock-or-logout dialog and close the switcher`() {

app/src/test/java/com/x8bit/bitwarden/ui/auth/feature/login/LoginViewModelTest.kt

@@ -149,6 +149,16 @@ class LoginViewModelTest : BaseViewModelTest() {
         }
     }
 
+    @Suppress("MaxLineLength")
+    @Test
+    fun `on AddAccountClick should send NavigateBack`() = runTest {
+        val viewModel = createViewModel()
+        viewModel.eventFlow.test {
+            viewModel.trySendAction(LoginAction.AddAccountClick)
+            assertEquals(LoginEvent.NavigateBack, awaitItem())
+        }
+    }
+
     @Test
     fun `LockAccountClick should call lockVaultIfNecessary for the given account`() {
         val accountUserId = "userId"