test: 공모글 작성 이미지 테스트 코드 작성 (#260)

* refactor: 상수 가시성 변경

* feat: test fixture 구현

* feat: fake repository 이미지 업로드 기능 추가

* test: OfferingWriteViewModelTest 이미지 업로드 test 코드 작성

android/app/src/main/java/com/zzang/chongdae/presentation/view/write/OfferingWriteViewModel.kt

@@ -326,7 +326,7 @@ class OfferingWriteViewModel(
         private const val MAXIMUM_TOTAL_COUNT = 10_000
         private const val INPUT_DATE_TIME_FORMAT = "yyyy년 M월 d일 a h시 m분"
         private const val OUTPUT_DATE_TIME_FORMAT = "yyyy-MM-dd'T'HH:mm:ss"
-        private const val HTTPS = "https:"
+        const val HTTPS = "https:"
 
         @Suppress("UNCHECKED_CAST")
         fun getFactory(offeringRepository: OfferingRepository) =

android/app/src/test/java/com/zzang/chongdae/presentation/view/write/OfferingWriteViewModelTest.kt

@@ -0,0 +1,68 @@
+package com.zzang.chongdae.presentation.view.write
+
+import com.zzang.chongdae.domain.repository.OfferingRepository
+import com.zzang.chongdae.presentation.view.write.OfferingWriteViewModel.Companion.HTTPS
+import com.zzang.chongdae.repository.FakeOfferingRepository
+import com.zzang.chongdae.util.CoroutinesTestExtension
+import com.zzang.chongdae.util.InstantTaskExecutorExtension
+import com.zzang.chongdae.util.TestFixture.martiPartBody
+import com.zzang.chongdae.util.TestFixture.productUrl
+import com.zzang.chongdae.util.getOrAwaitValue
+import kotlinx.coroutines.ExperimentalCoroutinesApi
+import org.assertj.core.api.Assertions.assertThat
+import org.junit.jupiter.api.BeforeEach
+import org.junit.jupiter.api.DisplayName
+import org.junit.jupiter.api.Test
+import org.junit.jupiter.api.extension.ExtendWith
+
+@ExperimentalCoroutinesApi
+@ExtendWith(CoroutinesTestExtension::class)
+@ExtendWith(InstantTaskExecutorExtension::class)
+class OfferingWriteViewModelTest {
+    private lateinit var viewModel: OfferingWriteViewModel
+    private lateinit var offeringRepository: OfferingRepository
+
+    @BeforeEach
+    fun setUp() {
+        offeringRepository = FakeOfferingRepository()
+        viewModel = OfferingWriteViewModel(offeringRepository)
+    }
+
+    @DisplayName("상품 url을 통해 og 이미지 정보를 가져온다")
+    @Test
+    fun saveProductImageOg() {
+        // given
+        // when
+        viewModel.postProductImageOg()
+
+        // then
+        val result = viewModel.thumbnailUrl.getOrAwaitValue()
+        assertThat(result).isEqualTo(HTTPS + productUrl.imageUrl)
+    }
+
+    @DisplayName("상품 이미지를 S3에 저장한다")
+    @Test
+    fun saveProductImageS3() {
+        // given
+        // when
+        viewModel.uploadImageFile(martiPartBody)
+
+        // then
+        val result = viewModel.thumbnailUrl.getOrAwaitValue()
+        assertThat(result).isEqualTo(productUrl.imageUrl)
+    }
+
+    @DisplayName("업로드한 상품 이미지를 지울 수 있다")
+    @Test
+    fun deleteProductImage() {
+        // given
+        viewModel.uploadImageFile(martiPartBody)
+
+        // when
+        viewModel.clearProductImage()
+
+        // then
+        val result = viewModel.thumbnailUrl.getOrAwaitValue()
+        assertThat(result).isEqualTo(null)
+    }
+}

android/app/src/test/java/com/zzang/chongdae/repository/FakeOfferingRepository.kt

@@ -26,11 +26,11 @@ class FakeOfferingRepository : OfferingRepository {
     }
 
     override suspend fun saveProductImageOg(productUrl: String): Result<ProductUrl> {
-        TODO("Not yet implemented")
+        return Result.success(TestFixture.productUrl)
     }
 
     override suspend fun saveProductImageS3(image: MultipartBody.Part): Result<ProductUrl> {
-        TODO("Not yet implemented")
+        return Result.success(TestFixture.productUrl)
     }
 
     override suspend fun fetchFilters(): Result<List<Filter>> {

android/app/src/test/java/com/zzang/chongdae/util/TestFixture.kt

@@ -12,6 +12,8 @@ import com.zzang.chongdae.domain.model.Meetings
 import com.zzang.chongdae.domain.model.Offering
 import com.zzang.chongdae.domain.model.OfferingCondition
 import com.zzang.chongdae.domain.model.OfferingStatus
+import com.zzang.chongdae.domain.model.ProductUrl
+import okhttp3.MultipartBody
 
 object TestFixture {
     val meetings: Meetings =
@@ -76,4 +78,8 @@ object TestFixture {
                 type = FilterType.VISIBLE,
             )
         }
+
+    val productUrl: ProductUrl = ProductUrl("url")
+
+    val martiPartBody = MultipartBody.Part.createFormData("image", "image")
 }