Add integration test for ApiService

src/main/kotlin/concept/stc/coroutines/DispatchersProvider.kt

@@ -6,8 +6,7 @@ import org.springframework.stereotype.Component
 
 /**
  * Provides coroutines dispatchers.
- * This class allows to replace background dispatchers with test dispatchers
- * for unit and integration testing.
+ * This class allows to replace background dispatchers for unit and integration testing.
  */
 @Component
 class DispatchersProvider {

src/test/kotlin/concept/stc/data/ApiServiceIntegrationTest.kt

@@ -0,0 +1,82 @@
+package concept.stc.data
+
+import com.ninjasquad.springmockk.MockkBean
+import concept.stc.coroutines.DispatchersProvider
+import concept.stc.data.local.MovieCrudRepository
+import concept.stc.data.remote.ApiClient
+import concept.stc.data.remote.model.SearchResponse
+import io.mockk.coEvery
+import kotlinx.coroutines.ExperimentalCoroutinesApi
+import kotlinx.coroutines.flow.first
+import kotlinx.coroutines.runBlocking
+import kotlinx.coroutines.test.UnconfinedTestDispatcher
+import kotlinx.coroutines.test.runTest
+import org.junit.jupiter.api.Test
+import org.springframework.beans.factory.annotation.Autowired
+import org.springframework.boot.test.autoconfigure.jdbc.AutoConfigureTestDatabase
+import org.springframework.boot.test.autoconfigure.jdbc.AutoConfigureTestDatabase.Replace
+import org.springframework.boot.test.context.SpringBootTest
+import org.springframework.boot.test.context.SpringBootTest.WebEnvironment
+import kotlin.test.AfterTest
+import kotlin.test.BeforeTest
+import kotlin.test.assertEquals
+
+@SpringBootTest(webEnvironment = WebEnvironment.NONE)
+@AutoConfigureTestDatabase(replace = Replace.NONE)
+class ApiServiceIntegrationTest {
+
+    @OptIn(ExperimentalCoroutinesApi::class)
+    private val testDispatcher = UnconfinedTestDispatcher()
+
+    @MockkBean
+    private lateinit var apiClient: ApiClient
+
+    @MockkBean
+    private lateinit var dispatchers: DispatchersProvider
+
+    @Autowired
+    private lateinit var repository: MovieCrudRepository
+
+    @Autowired
+    private lateinit var service: ApiService
+
+    @BeforeTest
+    fun setUp() {
+        coEvery { dispatchers.io } returns testDispatcher
+    }
+
+    @AfterTest
+    fun cleanUp() {
+        runBlocking { repository.deleteAll() }
+    }
+
+    @Test
+    fun `when load movies, given API response, then save them to database`() = runTest {
+        // Given
+        val movie = _movie.copy(imdbID = "testId")
+        val searchResponse = _searchResponse.copy(movies = listOf(movie))
+
+        coEvery { apiClient.search("test") } returns searchResponse
+
+        // When
+        service.loadMovies("test")
+
+        // Then
+        val saved = repository.findAll().first()
+        assertEquals("testId", saved.imdbID)
+    }
+
+    private val _movie = SearchResponse.Movie(
+        title = "",
+        year = "",
+        imdbID = "",
+        type = "",
+        poster = ""
+    )
+
+    private val _searchResponse = SearchResponse(
+        movies = emptyList(),
+        totalResults = 0,
+        response = ""
+    )
+}

src/test/kotlin/concept/stc/data/remote/ApiClientIntegrationTest.kt

@@ -11,10 +11,11 @@ import kotlinx.coroutines.test.runTest
 import org.junit.jupiter.api.Test
 import org.springframework.beans.factory.annotation.Value
 import org.springframework.boot.test.context.SpringBootTest
+import org.springframework.boot.test.context.SpringBootTest.WebEnvironment
 import org.wiremock.spring.EnableWireMock
 import kotlin.test.assertEquals
 
-@SpringBootTest
+@SpringBootTest(webEnvironment = WebEnvironment.NONE)
 @EnableWireMock
 class ApiClientIntegrationTest {