From e1b29f38067d9e4de83b11a12ddd44b6263b3e33 Mon Sep 17 00:00:00 2001
From: Kirill Kamakin <k.kamakin@protonmail.ch>
Date: Tue, 29 Nov 2022 20:42:56 +0100
Subject: [PATCH] Add ShareRecipeViewModel tests

---
 .../kirmanak/mealient/ui/OperationUiState.kt  | 24 ++++++-
 .../ui/share/ShareRecipeViewModelTest.kt      | 70 +++++++++++++++++++
 2 files changed, 92 insertions(+), 2 deletions(-)
 create mode 100644 app/src/test/java/gq/kirmanak/mealient/ui/share/ShareRecipeViewModelTest.kt

diff --git a/app/src/main/java/gq/kirmanak/mealient/ui/OperationUiState.kt b/app/src/main/java/gq/kirmanak/mealient/ui/OperationUiState.kt
index 042f699..5decff9 100644
--- a/app/src/main/java/gq/kirmanak/mealient/ui/OperationUiState.kt
+++ b/app/src/main/java/gq/kirmanak/mealient/ui/OperationUiState.kt
@@ -27,9 +27,29 @@ sealed class OperationUiState<T> {
         progressBar.isVisible = isProgress
     }
 
-    class Initial<T> : OperationUiState<T>()
+    class Initial<T> : OperationUiState<T>() {
+        override fun equals(other: Any?): Boolean {
+            if (this === other) return true
+            if (javaClass != other?.javaClass) return false
+            return true
+        }
 
-    class Progress<T> : OperationUiState<T>()
+        override fun hashCode(): Int {
+            return javaClass.hashCode()
+        }
+    }
+
+    class Progress<T> : OperationUiState<T>() {
+        override fun equals(other: Any?): Boolean {
+            if (this === other) return true
+            if (javaClass != other?.javaClass) return false
+            return true
+        }
+
+        override fun hashCode(): Int {
+            return javaClass.hashCode()
+        }
+    }
 
     data class Failure<T>(val exception: Throwable) : OperationUiState<T>()
 
diff --git a/app/src/test/java/gq/kirmanak/mealient/ui/share/ShareRecipeViewModelTest.kt b/app/src/test/java/gq/kirmanak/mealient/ui/share/ShareRecipeViewModelTest.kt
new file mode 100644
index 0000000..4046062
--- /dev/null
+++ b/app/src/test/java/gq/kirmanak/mealient/ui/share/ShareRecipeViewModelTest.kt
@@ -0,0 +1,70 @@
+package gq.kirmanak.mealient.ui.share
+
+import androidx.lifecycle.asFlow
+import com.google.common.truth.Truth.assertThat
+import gq.kirmanak.mealient.data.share.ShareRecipeRepo
+import gq.kirmanak.mealient.test.BaseUnitTest
+import gq.kirmanak.mealient.ui.OperationUiState
+import io.mockk.coEvery
+import io.mockk.coVerify
+import io.mockk.impl.annotations.MockK
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.ExperimentalCoroutinesApi
+import kotlinx.coroutines.async
+import kotlinx.coroutines.flow.take
+import kotlinx.coroutines.flow.toList
+import kotlinx.coroutines.test.runTest
+import org.junit.Before
+import org.junit.Rule
+import org.junit.Test
+import org.junit.rules.Timeout
+
+@OptIn(ExperimentalCoroutinesApi::class)
+class ShareRecipeViewModelTest : BaseUnitTest() {
+
+    @MockK(relaxUnitFun = true)
+    lateinit var shareRecipeRepo: ShareRecipeRepo
+
+    lateinit var subject: ShareRecipeViewModel
+
+    @get:Rule
+    val timeoutRule: Timeout = Timeout.seconds(5)
+
+    @Before
+    override fun setUp() {
+        super.setUp()
+        subject = ShareRecipeViewModel(
+            shareRecipeRepo = shareRecipeRepo,
+            logger = logger,
+        )
+    }
+
+    @Test
+    fun `when repo throws expect saveRecipeByURL to update saveResult`() {
+        coEvery { shareRecipeRepo.saveRecipeByURL(any()) } throws RuntimeException()
+        subject.saveRecipeByURL("")
+        assertThat(subject.saveResult.value).isInstanceOf(OperationUiState.Failure::class.java)
+    }
+
+    @Test
+    fun `when repo returns result expect saveResult to show progress before result`() = runTest {
+        val deferredActual = async(Dispatchers.Default) {
+            subject.saveResult.asFlow().take(3).toList(mutableListOf())
+        }
+        coEvery { shareRecipeRepo.saveRecipeByURL(any()) } returns "result"
+        subject.saveRecipeByURL("")
+        val actual = deferredActual.await()
+        assertThat(actual).containsExactly(
+            OperationUiState.Initial<String>(),
+            OperationUiState.Progress<String>(),
+            OperationUiState.Success("result"),
+        ).inOrder()
+    }
+
+    @Test
+    fun `when url is given expect saveRecipeByURL to pass it to repo`() = runTest {
+        coEvery { shareRecipeRepo.saveRecipeByURL(any()) } returns "result"
+        subject.saveRecipeByURL("https://www.allrecipes.com/recipe/215447/dads-leftover-turkey-pot-pie/")
+        coVerify { shareRecipeRepo.saveRecipeByURL(eq("https://www.allrecipes.com/recipe/215447/dads-leftover-turkey-pot-pie/")) }
+    }
+}
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