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Add test for BottomNavigationLayout

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Signed-off-by: Aditya Wasan <adityawasan55@gmail.com>
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Aditya Wasan 2021-02-12 13:24:38 +05:30
parent 91cfb0b2d2
commit 25b3ad4f8e
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2 changed files with 125 additions and 10 deletions
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115
app/src/androidTest/java/dev/msfjarvis/lobsters/BottomNavigationLayoutTest.kt Normal file
View file

@ -0,0 +1,115 @@
package dev.msfjarvis.lobsters
import androidx.compose.runtime.getValue
import androidx.compose.runtime.mutableStateOf
import androidx.compose.runtime.remember
import androidx.compose.runtime.setValue
import androidx.compose.ui.test.assertContentDescriptionEquals
import androidx.compose.ui.test.assertCountEquals
import androidx.compose.ui.test.assertHasClickAction
import androidx.compose.ui.test.assertIsDisplayed
import androidx.compose.ui.test.assertIsNotSelected
import androidx.compose.ui.test.assertIsSelected
import androidx.compose.ui.test.assertTextEquals
import androidx.compose.ui.test.junit4.createComposeRule
import androidx.compose.ui.test.onChildAt
import androidx.compose.ui.test.onChildren
import androidx.compose.ui.test.onNodeWithTag
import androidx.compose.ui.test.performClick
import dev.msfjarvis.lobsters.ui.main.LobstersBottomNav
import dev.msfjarvis.lobsters.ui.navigation.Destination
import dev.msfjarvis.lobsters.ui.theme.LobstersTheme
import org.junit.Before
import org.junit.Rule
import org.junit.Test
class BottomNavigationLayoutTest {
@get:Rule
val composeTestRule = createComposeRule()
@Before
fun setUp() {
composeTestRule.setContent {
LobstersTheme {
var mutableDestination by remember { mutableStateOf(Destination.startDestination) }
LobstersBottomNav(
currentDestination = mutableDestination,
navigateToDestination = { mutableDestination = it },
jumpToIndex = {}
)
}
}
}
@Test
fun bottomNavItemCountTest() {
// Test to make sure total items are equal to enum objects present in Destination
composeTestRule.onNodeWithTag("LobstersBottomNav")
.assertExists()
.assertIsDisplayed()
.onChildren()
.assertCountEquals(Destination.values().size)
}
@Test
fun bottomNavItemTest() {
// Check hottest BottomNavItem is rendered correctly
composeTestRule.onNodeWithTag("LobstersBottomNav")
.assertExists()
.assertIsDisplayed()
.onChildAt(0)
.assertTextEquals("Hottest")
.assertContentDescriptionEquals("Hottest")
.assertHasClickAction()
// Check saved BottomNavItem is rendered correctly
composeTestRule.onNodeWithTag("LobstersBottomNav")
.assertExists()
.assertIsDisplayed()
.onChildAt(1)
.assertTextEquals("Saved")
.assertContentDescriptionEquals("Saved")
.assertHasClickAction()
}
@Test
fun bottomNavItemSelectedTest() {
// Check hottest BottomNav item is selected
composeTestRule.onNodeWithTag("LobstersBottomNav")
.assertExists()
.assertIsDisplayed()
.onChildAt(0)
.assertIsSelected()
.assertTextEquals("Hottest")
// Check saved BottomNav item is not selected
composeTestRule.onNodeWithTag("LobstersBottomNav")
.assertExists()
.assertIsDisplayed()
.onChildAt(1)
.assertIsNotSelected()
// Select the saved BottomNav item
composeTestRule.onNodeWithTag("LobstersBottomNav")
.onChildAt(1)
.performClick()
// Check hottest BottomNav item is not selected
composeTestRule.onNodeWithTag("LobstersBottomNav")
.assertExists()
.assertIsDisplayed()
.onChildAt(0)
.assertIsNotSelected()
// Check saved BottomNav item is selected
composeTestRule.onNodeWithTag("LobstersBottomNav")
.assertExists()
.assertIsDisplayed()
.onChildAt(1)
.assertIsSelected()
.assertTextEquals("Saved")
}
}

20
app/src/main/java/dev/msfjarvis/lobsters/ui/main/MainActivity.kt
View file

@ -4,7 +4,6 @@ import android.os.Bundle
import androidx.activity.compose.setContent
import androidx.appcompat.app.AppCompatActivity
import androidx.compose.foundation.layout.padding
import androidx.compose.foundation.lazy.LazyListState
import androidx.compose.foundation.lazy.rememberLazyListState
import androidx.compose.material.BottomNavigation
import androidx.compose.material.BottomNavigationItem
@ -16,6 +15,7 @@ import androidx.compose.runtime.collectAsState
import androidx.compose.runtime.getValue
import androidx.compose.runtime.rememberCoroutineScope
import androidx.compose.ui.Modifier
import androidx.compose.ui.platform.testTag
import androidx.compose.ui.res.stringResource
import androidx.lifecycle.viewmodel.compose.viewModel
import androidx.navigation.compose.KEY_ROUTE
@ -35,7 +35,6 @@ import dev.msfjarvis.lobsters.ui.urllauncher.UrlLauncher
import dev.msfjarvis.lobsters.ui.viewmodel.LobstersViewModel
import dev.msfjarvis.lobsters.util.IconResource
import javax.inject.Inject
import kotlinx.coroutines.CoroutineScope
import kotlinx.coroutines.launch
@AndroidEntryPoint
@ -73,14 +72,18 @@ fun LobstersApp() {
popUpTo(navController.graph.startDestination) { inclusive = false }
}
}
val jumpToIndex: (Int) -> Unit = {
coroutineScope.launch {
hottestPostsListState.snapToItemIndex(it)
}
}
Scaffold(
bottomBar = {
LobstersBottomNav(
hottestPostsListState,
coroutineScope,
currentDestination,
navigateToDestination,
jumpToIndex,
)
},
) { innerPadding ->
@ -107,12 +110,11 @@ fun LobstersApp() {
@Composable
fun LobstersBottomNav(
hottestPostsListState: LazyListState,
coroutineScope: CoroutineScope,
currentDestination: Destination,
navigateToDestination: (destination: Destination) -> Unit,
jumpToIndex: (index: Int) -> Unit,
) {
BottomNavigation {
BottomNavigation(modifier = Modifier.testTag("LobstersBottomNav")) {
Destination.values().forEach { screen ->
BottomNavigationItem(
icon = {
@ -128,9 +130,7 @@ fun LobstersBottomNav(
if (screen != currentDestination) {
navigateToDestination(screen)
} else if (screen.route == Destination.Hottest.route) {
coroutineScope.launch {
hottestPostsListState.snapToItemIndex(0)
}
jumpToIndex(0)
}
}
)