adding test around login with token

vector/src/test/java/im/vector/app/features/onboarding/OnboardingViewModelTest.kt

@@ -76,6 +76,7 @@ private const val AN_EMAIL = "hello@example.com"
 private const val A_PASSWORD = "a-password"
 private const val A_USERNAME = "hello-world"
 private const val A_MATRIX_ID = "@$A_USERNAME:matrix.org"
+private const val A_LOGIN_TOKEN = "a-login-token"
 
 class OnboardingViewModelTest {
 
@@ -141,6 +142,25 @@ class OnboardingViewModelTest {
                 .finish()
     }
 
+    @Test
+    fun `given can successfully login in with token, when logging in with token, then emits AccountSignedIn`() = runTest {
+        val test = viewModel.test()
+        fakeAuthenticationService.givenLoginWizard(fakeLoginWizard)
+        fakeLoginWizard.givenLoginWithTokenResult(A_LOGIN_TOKEN, fakeSession)
+        givenInitialisesSession(fakeSession)
+
+        viewModel.handle(OnboardingAction.LoginWithToken(A_LOGIN_TOKEN))
+
+        test
+                .assertStatesChanges(
+                        initialState,
+                        { copy(isLoading = true) },
+                        { copy(isLoading = false) }
+                )
+                .assertEvents(OnboardingViewEvents.OnAccountSignedIn)
+                .finish()
+    }
+
     @Test
     fun `given registration started with currentThreePid, when handling InitWith, then emits restored session OnSendEmailSuccess`() = runTest {
         val test = viewModel.test()

vector/src/test/java/im/vector/app/test/fakes/FakeLoginWizard.kt

@@ -16,10 +16,12 @@
 
 package im.vector.app.test.fakes
 
+import io.mockk.coEvery
 import io.mockk.coJustRun
 import io.mockk.coVerify
 import io.mockk.mockk
 import org.matrix.android.sdk.api.auth.login.LoginWizard
+import org.matrix.android.sdk.api.session.Session
 
 class FakeLoginWizard : LoginWizard by mockk() {
 
@@ -27,6 +29,10 @@ class FakeLoginWizard : LoginWizard by mockk() {
         coJustRun { resetPassword(email) }
     }
 
+    fun givenLoginWithTokenResult(token: String, result: Session) {
+        coEvery { loginWithToken(token) } returns result
+    }
+
     fun givenConfirmResetPasswordSuccess(password: String) {
         coJustRun { resetPasswordMailConfirmed(password) }
     }