Merge pull request #95 from nimblehq/chore/83-add-ui-test-for-detail-…

…screen

[#83] Create UI test example for Detail screen

app/src/androidTest/java/co/nimblehq/compose/crypto/test/MockUtil.kt

@@ -1,7 +1,6 @@
 package co.nimblehq.compose.crypto.test
 
-import co.nimblehq.compose.crypto.domain.model.CoinDetail
-import co.nimblehq.compose.crypto.domain.model.CoinItem
+import co.nimblehq.compose.crypto.domain.model.*
 import java.math.BigDecimal
 
 object MockUtil {
@@ -97,4 +96,9 @@ object MockUtil {
             lastUpdated = "lastUpdated"
         )
     )
+
+    val coinPrices = listOf(
+        CoinPrice(1000,BigDecimal.ZERO),
+        CoinPrice(2000, BigDecimal.ONE)
+    )
 }

app/src/androidTest/java/co/nimblehq/compose/crypto/ui/screen/detail/DetailScreenUITest.kt

@@ -0,0 +1,138 @@
+package co.nimblehq.compose.crypto.ui.screen.detail
+
+import androidx.activity.compose.setContent
+import androidx.compose.ui.test.*
+import androidx.compose.ui.test.junit4.createAndroidComposeRule
+import co.nimblehq.compose.crypto.R
+import co.nimblehq.compose.crypto.domain.usecase.GetCoinDetailUseCase
+import co.nimblehq.compose.crypto.domain.usecase.GetCoinPricesUseCase
+import co.nimblehq.compose.crypto.extension.toFormattedString
+import co.nimblehq.compose.crypto.test.MockUtil.coinDetail
+import co.nimblehq.compose.crypto.test.MockUtil.coinPrices
+import co.nimblehq.compose.crypto.test.TestDispatchersProvider
+import co.nimblehq.compose.crypto.ui.components.chartintervals.TimeIntervals
+import co.nimblehq.compose.crypto.ui.screens.MainActivity
+import co.nimblehq.compose.crypto.ui.screens.detail.*
+import co.nimblehq.compose.crypto.ui.uimodel.toUiModel
+import io.mockk.every
+import io.mockk.mockk
+import kotlinx.coroutines.ExperimentalCoroutinesApi
+import kotlinx.coroutines.delay
+import kotlinx.coroutines.flow.flow
+import kotlinx.coroutines.flow.flowOf
+import org.junit.Before
+import org.junit.Rule
+import org.junit.Test
+import kotlin.math.abs
+
+@ExperimentalCoroutinesApi
+class DetailScreenUITest {
+
+    @get:Rule
+    val composeAndroidTestRule = createAndroidComposeRule<MainActivity>()
+
+    private val errorGeneric: String
+        get() = composeAndroidTestRule.activity.getString(R.string.error_generic)
+
+    private val mockGetCoinDetailUseCase: GetCoinDetailUseCase = mockk()
+    private val mockGetCoinPricesUseCase: GetCoinPricesUseCase = mockk()
+
+    private lateinit var detailViewModel: DetailViewModel
+
+
+    @Before
+    fun setUp() {
+        every { mockGetCoinDetailUseCase.execute(any()) } returns flowOf(coinDetail)
+        every { mockGetCoinPricesUseCase.execute(any()) } returns flowOf(coinPrices)
+
+        initViewModel()
+        composeAndroidTestRule.activity.setContent {
+            DetailScreen(
+                coinId = "",
+                viewModel = detailViewModel,
+                navigator = {}
+            )
+        }
+    }
+
+    @Test
+    fun when_navigating_to_detail_screen__it_shows_loading() {
+        every { mockGetCoinDetailUseCase.execute(any()) } returns flow {
+            delay(100L)
+        }
+
+        with(composeAndroidTestRule) {
+            onNodeWithTag(TestTagDetailLoading).assertIsDisplayed()
+        }
+    }
+
+    @Test
+    fun when_navigating_to_detail_screen__it_renders_chart_interval_buttons_properly() {
+        with(composeAndroidTestRule) {
+            onNodeWithText(TimeIntervals.ONE_DAY.text).assertIsDisplayed()
+            onNodeWithText(TimeIntervals.ONE_WEEK.text).assertIsDisplayed()
+            onNodeWithText(TimeIntervals.ONE_MONTH.text).assertIsDisplayed()
+            onNodeWithText(TimeIntervals.ONE_YEAR.text).assertIsDisplayed()
+            onNodeWithText(TimeIntervals.FIVE_YEAR.text).assertIsDisplayed()
+        }
+    }
+
+    @Test
+    fun when_navigating_to_detail_screen__it_render_currentPrice_and_priceChangePercentage24hInCurrency_properly() {
+        with(composeAndroidTestRule) {
+            val coinUiModel = coinDetail.toUiModel()
+            val currentPrice = "$${coinUiModel.currentPrice.toFormattedString()}"
+            onNodeWithText(currentPrice).assertIsDisplayed()
+
+            val priceChangePercentage24hInCurrency = "${abs(coinUiModel.priceChangePercentage24hInCurrency).toFormattedString()}%"
+            onNodeWithText(priceChangePercentage24hInCurrency).assertIsDisplayed()
+        }
+    }
+
+    @Test
+    fun when_navigating_to_detail_screen__it_render_coin_info_properly() {
+        with(composeAndroidTestRule) {
+            coinDetail.marketData?.let { marketData ->
+                val coinUiModel = coinDetail.toUiModel()
+                val marketCap = "$${coinUiModel.marketCap.toFormattedString()}"
+                onNodeWithText(marketCap).assertIsDisplayed()
+
+                val athTimeHigh = "$${coinUiModel.ath.toFormattedString()}"
+                onNodeWithText(athTimeHigh).assertIsDisplayed()
+
+                val allTimeLow = "$${coinUiModel.atl.toFormattedString()}"
+                onNodeWithText(allTimeLow).assertIsDisplayed()
+            }
+        }
+    }
+
+    @Test
+    fun when_navigating_to_detail_screen_and_has_api_error__coin_price_chart_is_not_displayed() {
+        every { mockGetCoinDetailUseCase.execute(any()) } returns flow {
+            throw Throwable(errorGeneric)
+        }
+
+        with(composeAndroidTestRule) {
+            onNodeWithText(TestTagDetailCoinPriceChart).assertDoesNotExist()
+        }
+    }
+
+    @Test
+    fun when_navigating_to_detail_screen__chart_interval_buttons_are_clickable() {
+        with(composeAndroidTestRule) {
+            onNodeWithText(TimeIntervals.ONE_DAY.text).assertHasClickAction()
+            onNodeWithText(TimeIntervals.ONE_WEEK.text).assertHasClickAction()
+            onNodeWithText(TimeIntervals.ONE_MONTH.text).assertHasClickAction()
+            onNodeWithText(TimeIntervals.ONE_YEAR.text).assertHasClickAction()
+            onNodeWithText(TimeIntervals.FIVE_YEAR.text).assertHasClickAction()
+        }
+    }
+
+    private fun initViewModel() {
+        detailViewModel = DetailViewModel(
+            dispatchers = TestDispatchersProvider,
+            getCoinDetailUseCase = mockGetCoinDetailUseCase,
+            getCoinPricesUseCase = mockGetCoinPricesUseCase
+        )
+    }
+}

app/src/androidTest/java/co/nimblehq/compose/crypto/ui/screen/HomeScreenUITest.kt → app/src/androidTest/java/co/nimblehq/compose/crypto/ui/screen/home/HomeScreenUITest.kt

@@ -1,4 +1,4 @@
-package co.nimblehq.compose.crypto.ui.screen
+package co.nimblehq.compose.crypto.ui.screen.home
 
 import androidx.activity.compose.setContent
 import androidx.compose.ui.test.*