Cover all auth tests

app/src/androidTest/java/org/fnives/test/showcase/ui/AuthComposeInstrumentedTest.kt

@@ -2,6 +2,7 @@ package org.fnives.test.showcase.ui
 
 import androidx.compose.ui.test.junit4.createAndroidComposeRule
 import androidx.test.ext.junit.runners.AndroidJUnit4
+import org.fnives.test.showcase.R
 import org.fnives.test.showcase.compose.ComposeActivity
 import org.fnives.test.showcase.network.mockserver.scenario.auth.AuthScenario
 import org.fnives.test.showcase.testutils.MockServerScenarioSetupResetingTestRule
@@ -25,7 +26,7 @@ class AuthComposeInstrumentedTest : KoinTest {
     private val mockServerScenarioSetup get() = mockServerScenarioSetupTestRule.mockServerScenarioSetup
     private val mainDispatcherTestRule = ComposeMainDispatcherTestRule()
     private lateinit var robot: ComposeLoginRobot
-    private lateinit var screenRobot: ComposeScreenRobot
+    private lateinit var navigationRobot: ComposeNavigationRobot
 
     @Rule
     @JvmField
@@ -36,7 +37,7 @@ class AuthComposeInstrumentedTest : KoinTest {
     @Before
     fun setup() {
         robot = ComposeLoginRobot(composeTestRule)
-        screenRobot = ComposeScreenRobot(composeTestRule)
+        navigationRobot = ComposeNavigationRobot(composeTestRule)
     }
 
     /** GIVEN non empty password and username and successful response WHEN signIn THEN no error is shown and navigating to home */
@@ -47,9 +48,8 @@ class AuthComposeInstrumentedTest : KoinTest {
         )
         composeTestRule.mainClock.advanceTimeBy(500L)
         composeTestRule.mainClock.advanceTimeUntil { anyResourceIdling() }
-        screenRobot.assertAuthScreen()
-        robot
-            .setPassword("alma")
+        navigationRobot.assertAuthScreen()
+        robot.setPassword("alma")
             .setUsername("banan")
             .assertUsername("banan")
             .assertPassword("alma")
@@ -61,7 +61,93 @@ class AuthComposeInstrumentedTest : KoinTest {
         composeTestRule.mainClock.autoAdvance = true
 
         composeTestRule.mainClock.advanceTimeUntil { anyResourceIdling() }
-        screenRobot.assertHomeScreen()
+        navigationRobot.assertHomeScreen()
     }
 
+    /** GIVEN empty password and username WHEN signIn THEN error password is shown */
+    @Test
+    fun emptyPasswordShowsProperErrorMessage() {
+        composeTestRule.mainClock.advanceTimeBy(500L)
+        composeTestRule.mainClock.advanceTimeUntil { anyResourceIdling() }
+        navigationRobot.assertAuthScreen()
+
+        robot.setUsername("banan")
+            .assertUsername("banan")
+            .clickOnLogin()
+
+        composeTestRule.mainClock.advanceTimeUntil { anyResourceIdling() }
+        robot.assertErrorIsShown(R.string.password_is_invalid)
+            .assertNotLoading()
+        navigationRobot.assertAuthScreen()
+    }
+
+    /** GIVEN password and empty username WHEN signIn THEN error username is shown */
+    @Test
+    fun emptyUserNameShowsProperErrorMessage() {
+        composeTestRule.mainClock.advanceTimeBy(500L)
+        composeTestRule.mainClock.advanceTimeUntil { anyResourceIdling() }
+        navigationRobot.assertAuthScreen()
+
+        robot
+            .setPassword("banan")
+            .assertPassword("banan")
+            .clickOnLogin()
+
+        composeTestRule.mainClock.advanceTimeUntil { anyResourceIdling() }
+        robot.assertErrorIsShown(R.string.username_is_invalid)
+            .assertNotLoading()
+        navigationRobot.assertAuthScreen()
+    }
+
+    /** GIVEN password and username and invalid credentials response WHEN signIn THEN error invalid credentials is shown */
+    @Test
+    fun invalidCredentialsGivenShowsProperErrorMessage() {
+        mockServerScenarioSetup.setScenario(
+            AuthScenario.InvalidCredentials(password = "alma", username = "banan")
+        )
+        composeTestRule.mainClock.advanceTimeBy(500L)
+        composeTestRule.mainClock.advanceTimeUntil { anyResourceIdling() }
+        navigationRobot.assertAuthScreen()
+        robot.setUsername("alma")
+            .setPassword("banan")
+            .assertUsername("alma")
+            .assertPassword("banan")
+
+        composeTestRule.mainClock.autoAdvance = false
+        robot.clickOnLogin()
+        composeTestRule.mainClock.advanceTimeByFrame()
+        robot.assertLoading()
+        composeTestRule.mainClock.autoAdvance = true
+
+        composeTestRule.mainClock.advanceTimeUntil { anyResourceIdling() }
+        robot.assertErrorIsShown(R.string.credentials_invalid)
+            .assertNotLoading()
+        navigationRobot.assertAuthScreen()
+    }
+
+    /** GIVEN password and username and error response WHEN signIn THEN error invalid credentials is shown */
+    @Test
+    fun networkErrorShowsProperErrorMessage() {
+        mockServerScenarioSetup.setScenario(
+            AuthScenario.GenericError(username = "alma", password = "banan")
+        )
+        composeTestRule.mainClock.advanceTimeBy(500L)
+        composeTestRule.mainClock.advanceTimeUntil { anyResourceIdling() }
+        navigationRobot.assertAuthScreen()
+        robot.setUsername("alma")
+            .setPassword("banan")
+            .assertUsername("alma")
+            .assertPassword("banan")
+
+        composeTestRule.mainClock.autoAdvance = false
+        robot.clickOnLogin()
+        composeTestRule.mainClock.advanceTimeByFrame()
+        robot.assertLoading()
+        composeTestRule.mainClock.autoAdvance = true
+
+        composeTestRule.mainClock.advanceTimeUntil { anyResourceIdling() }
+        robot.assertErrorIsShown(R.string.something_went_wrong)
+            .assertNotLoading()
+        navigationRobot.assertAuthScreen()
+    }
 }

app/src/androidTest/java/org/fnives/test/showcase/ui/ComposeLoginRobot.kt

@@ -1,7 +1,9 @@
 package org.fnives.test.showcase.ui
 
+import android.content.Context
 import androidx.compose.ui.test.*
 import androidx.compose.ui.test.junit4.ComposeTestRule
+import androidx.test.core.app.ApplicationProvider
 import org.fnives.test.showcase.compose.screen.auth.AuthScreenTag
 
 class ComposeLoginRobot(
@@ -34,4 +36,13 @@ class ComposeLoginRobot(
     fun assertLoading(): ComposeLoginRobot = apply {
         composeTestRule.onNodeWithTag(AuthScreenTag.LoadingIndicator).assertIsDisplayed()
     }
+    fun assertNotLoading(): ComposeLoginRobot = apply {
+        composeTestRule.onAllNodesWithTag(AuthScreenTag.LoadingIndicator).assertCountEquals(0)
+    }
+
+    fun assertErrorIsShown(stringId: Int): ComposeLoginRobot = apply {
+        composeTestRule.onNodeWithTag(AuthScreenTag.LoginError)
+            .assertTextContains(ApplicationProvider.getApplicationContext<Context>().resources.getString(stringId))
+    }
+
 }

app/src/androidTest/java/org/fnives/test/showcase/ui/ComposeNavigationRobot.kt

@@ -1,19 +1,18 @@
 package org.fnives.test.showcase.ui
 
-import androidx.compose.ui.test.assertIsDisplayed
 import androidx.compose.ui.test.junit4.ComposeTestRule
 import androidx.compose.ui.test.onNodeWithTag
 import org.fnives.test.showcase.compose.screen.AppNavigationTag
 
-class ComposeScreenRobot(
+class ComposeNavigationRobot(
     private val composeTestRule: ComposeTestRule,
 ) {
 
-    fun assertHomeScreen(): ComposeScreenRobot = apply {
-        composeTestRule.onNodeWithTag(AppNavigationTag.HomeScreen).assertIsDisplayed()
+    fun assertHomeScreen(): ComposeNavigationRobot = apply {
+        composeTestRule.onNodeWithTag(AppNavigationTag.HomeScreen).assertExists()
     }
 
-    fun assertAuthScreen(): ComposeScreenRobot = apply {
-        composeTestRule.onNodeWithTag(AppNavigationTag.AuthScreen).assertIsDisplayed()
+    fun assertAuthScreen(): ComposeNavigationRobot = apply {
+        composeTestRule.onNodeWithTag(AppNavigationTag.AuthScreen).assertExists()
     }
 }

app/src/main/java/org/fnives/test/showcase/compose/screen/auth/AuthScreen.kt

@@ -135,7 +135,7 @@ private fun Snackbar(authScreenState: AuthScreenState, modifier: Modifier = Modi
         val stringId = error?.stringResId()
         if (stringId != null) {
             Snackbar(modifier = Modifier.padding(horizontal = 16.dp)) {
-                Text(text = stringResource(stringId))
+                Text(text = stringResource(stringId), Modifier.testTag(AuthScreenTag.LoginError))
             }
         }
     }
@@ -176,5 +176,6 @@ object AuthScreenTag {
     const val PasswordInput = "AuthScreenTag.PasswordInput"
     const val LoadingIndicator = "AuthScreenTag.LoadingIndicator"
     const val LoginButton = "AuthScreenTag.LoginButton"
+    const val LoginError = "AuthScreenTag.LoginError"
     const val PasswordVisibilityToggle = "AuthScreenTag.PasswordVisibilityToggle"
 }