Merge pull request #391 from Runnect/test/add-viewmodel-unit-test-infra

test: ViewModel unit test 인프라 추가 및 첫 테스트 작성

Author: unam98

app/build.gradle

@@ -188,6 +188,9 @@ dependencies {
 
     // Test
     testImplementation libs.junit
+    testImplementation libs.mockk
+    testImplementation libs.turbine
+    testImplementation libs.kotlinx.coroutines.test
     androidTestImplementation libs.androidx.junit
     androidTestImplementation libs.androidx.espresso.core
 }

app/src/test/java/com/runnect/runnect/presentation/event/VisitorModeManagerTest.kt

@@ -0,0 +1,58 @@
+package com.runnect.runnect.presentation.event
+
+import android.content.Context
+import com.runnect.runnect.application.PreferenceManager
+import io.mockk.every
+import io.mockk.mockk
+import io.mockk.mockkObject
+import io.mockk.unmockkObject
+import org.junit.After
+import org.junit.Assert.assertFalse
+import org.junit.Assert.assertTrue
+import org.junit.Before
+import org.junit.Test
+
+class VisitorModeManagerTest {
+
+    private val context: Context = mockk()
+    private lateinit var visitorModeManager: VisitorModeManager
+
+    @Before
+    fun setUp() {
+        mockkObject(PreferenceManager)
+        visitorModeManager = VisitorModeManager(context)
+    }
+
+    @After
+    fun tearDown() {
+        unmockkObject(PreferenceManager)
+    }
+
+    @Test
+    fun `access token이 visitor면 방문자 모드다`() {
+        every { PreferenceManager.getString(any(), any()) } returns "visitor"
+
+        assertTrue(visitorModeManager.isVisitorMode)
+    }
+
+    @Test
+    fun `access token이 실제 로그인 토큰이면 방문자 모드가 아니다`() {
+        every { PreferenceManager.getString(any(), any()) } returns "eyJhbGciOiJIUzI1NiJ9.sometoken"
+
+        assertFalse(visitorModeManager.isVisitorMode)
+    }
+
+    @Test
+    fun `토큰이 저장된 적 없는 기본값(none)이면 방문자 모드가 아니다`() {
+        every { PreferenceManager.getString(any(), any()) } returns "none"
+
+        assertFalse(visitorModeManager.isVisitorMode)
+    }
+
+    @Test
+    fun `access token이 빈 문자열이면 EXPIRED로 처리되어 방문자 모드가 아니다`() {
+        every { PreferenceManager.getString(any(), any()) } returns ""
+
+        assertFalse(visitorModeManager.isVisitorMode)
+    }
+}

app/src/test/java/com/runnect/runnect/presentation/mypage/MyPageViewModelTest.kt

@@ -0,0 +1,124 @@
+package com.runnect.runnect.presentation.mypage
+
+import app.cash.turbine.test
+import app.cash.turbine.turbineScope
+import com.runnect.runnect.domain.entity.User
+import com.runnect.runnect.domain.repository.UserRepository
+import io.mockk.coEvery
+import io.mockk.mockk
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.ExperimentalCoroutinesApi
+import kotlinx.coroutines.delay
+import kotlinx.coroutines.flow.flow
+import kotlinx.coroutines.test.StandardTestDispatcher
+import kotlinx.coroutines.test.resetMain
+import kotlinx.coroutines.test.runTest
+import kotlinx.coroutines.test.setMain
+import org.junit.After
+import org.junit.Assert.assertEquals
+import org.junit.Assert.assertFalse
+import org.junit.Assert.assertNull
+import org.junit.Assert.assertTrue
+import org.junit.Before
+import org.junit.Test
+
+@OptIn(ExperimentalCoroutinesApi::class)
+class MyPageViewModelTest {
+
+    private val testDispatcher = StandardTestDispatcher()
+
+    private lateinit var userRepository: UserRepository
+    private lateinit var viewModel: MyPageViewModel
+
+    @Before
+    fun setUp() {
+        Dispatchers.setMain(testDispatcher)
+        userRepository = mockk()
+    }
+
+    @After
+    fun tearDown() {
+        Dispatchers.resetMain()
+    }
+
+    @Test
+    fun `LoadUserInfo 성공 시 유저 정보로 상태가 갱신된다`() = runTest(testDispatcher) {
+        val user = User(
+            email = "runner@runnect.com",
+            latestStamp = "CSPR0",
+            level = 3,
+            levelPercent = 42,
+            nickname = "러너"
+        )
+        coEvery { userRepository.getUserInfo() } returns flow {
+            delay(1) // onLoading 상태를 별도 프레임으로 관찰하기 위한 실제 suspension 지점
+            emit(Result.success(user))
+        }
+        viewModel = MyPageViewModel(userRepository)
+
+        viewModel.state.test {
+            val initial = awaitItem()
+            assertEquals(MyPageUiState(), initial)
+            assertTrue("초기 상태는 isLoading=true가 기본값", initial.isLoading)
+
+            viewModel.intent(MyPageIntent.LoadUserInfo)
+
+            // MyPageUiState의 isLoading 기본값이 true라서, onLoading reduce는
+            // 초기 상태와 동일해 StateFlow가 별도로 emit하지 않고 곧바로 결과 상태로 넘어간다.
+            val success = awaitItem()
+            assertFalse(success.isLoading)
+            assertEquals("러너", success.nickname)
+            assertEquals("CSPR0", success.stampId)
+            assertEquals("3", success.level)
+            assertEquals(42, success.levelPercent)
+            assertEquals("runner@runnect.com", success.email)
+            assertNull(success.error)
+
+            cancelAndIgnoreRemainingEvents()
+        }
+    }
+
+    @Test
+    fun `LoadUserInfo 실패 시 에러 상태와 ShowError 이펙트가 발생한다`() = runTest(testDispatcher) {
+        coEvery { userRepository.getUserInfo() } returns flow {
+            delay(1)
+            throw RuntimeException("네트워크 오류")
+        }
+        viewModel = MyPageViewModel(userRepository)
+
+        turbineScope {
+            val stateTurbine = viewModel.state.testIn(backgroundScope)
+            val effectTurbine = viewModel.effect.testIn(backgroundScope)
+
+            assertEquals(MyPageUiState(), stateTurbine.awaitItem())
+
+            viewModel.intent(MyPageIntent.LoadUserInfo)
+
+            // 초기 상태가 이미 isLoading=true라 onLoading reduce는 별도로 emit되지 않는다.
+            val failure = stateTurbine.awaitItem()
+            assertFalse(failure.isLoading)
+            assertEquals("네트워크 오류 (unknown)", failure.error)
+
+            val effect = effectTurbine.awaitItem()
+            assertTrue(effect is MyPageEffect.ShowError)
+
+            stateTurbine.cancelAndIgnoreRemainingEvents()
+            effectTurbine.cancelAndIgnoreRemainingEvents()
+        }
+    }
+
+    @Test
+    fun `UpdateNickname 인텐트는 닉네임 상태를 갱신한다`() = runTest(testDispatcher) {
+        viewModel = MyPageViewModel(userRepository)
+
+        viewModel.state.test {
+            assertEquals(MyPageUiState(), awaitItem())
+
+            viewModel.intent(MyPageIntent.UpdateNickname("새닉네임"))
+
+            assertEquals("새닉네임", awaitItem().nickname)
+
+            cancelAndIgnoreRemainingEvents()
+        }
+    }
+}

gradle/libs.versions.toml

@@ -86,6 +86,8 @@ foojay = "0.10.0"
 junit = "4.13.2"
 androidx-junit = "1.3.0"
 espresso = "3.7.0"
+mockk = "1.13.13"
+turbine = "1.2.0"
 
 [libraries]
 # AndroidX
@@ -180,6 +182,9 @@ tedpermission-normal = { group = "io.github.ParkSangGwon", name = "tedpermission
 junit = { group = "junit", name = "junit", version.ref = "junit" }
 androidx-junit = { group = "androidx.test.ext", name = "junit", version.ref = "androidx-junit" }
 androidx-espresso-core = { group = "androidx.test.espresso", name = "espresso-core", version.ref = "espresso" }
+mockk = { group = "io.mockk", name = "mockk", version.ref = "mockk" }
+turbine = { group = "app.cash.turbine", name = "turbine", version.ref = "turbine" }
+kotlinx-coroutines-test = { group = "org.jetbrains.kotlinx", name = "kotlinx-coroutines-test", version.ref = "coroutines" }
 
 [bundles]
 firebase = [