[#18] Add SurveyUseCase test

shared/src/commonTest/kotlin/co/nimblehq/blisskmmic/domain/usecase/SurveyListUseCaseTest.kt

@@ -0,0 +1,61 @@
+package co.nimblehq.blisskmmic.domain.usecase
+
+import co.nimblehq.blisskmmic.domain.model.PaginationMeta
+import co.nimblehq.blisskmmic.domain.model.Survey
+import co.nimblehq.blisskmmic.domain.model.fakePaginationMeta
+import co.nimblehq.blisskmmic.domain.model.fakeSurvey
+import co.nimblehq.blisskmmic.domain.repository.MockSurveyRepository
+import co.nimblehq.blisskmmic.domain.repository.SurveyRepository
+import io.kotest.matchers.shouldBe
+import kotlinx.coroutines.flow.catch
+import kotlinx.coroutines.flow.flow
+import kotlinx.coroutines.test.runTest
+import org.kodein.mock.Mocker
+import org.kodein.mock.UsesFakes
+import org.kodein.mock.UsesMocks
+import kotlin.test.BeforeTest
+import kotlin.test.Test
+import kotlin.test.fail
+
+@UsesMocks(SurveyRepository::class)
+@UsesFakes(Survey::class, PaginationMeta::class)
+class SurveyListUseCaseTest {
+
+    private val mocker = Mocker()
+    private val surveyRepository = MockSurveyRepository(mocker)
+    private val survey = fakeSurvey()
+    private val paginationMeta = fakePaginationMeta()
+    private val surveyListUseCase = SurveyListUseCaseImpl(surveyRepository)
+
+    @BeforeTest
+    fun setUp() {
+        mocker.reset()
+    }
+
+    @Test
+    fun `When calling surveyList with a success response, it returns correct object`() = runTest {
+        mocker.every {
+            surveyRepository.survey(1)
+        } returns flow { emit(Pair(listOf(survey), paginationMeta)) }
+
+        surveyListUseCase(1)
+            .collect{
+                it.first().title shouldBe survey.title
+            }
+    }
+
+    @Test
+    fun `When calling surveyList with a failure response, it returns correct error`() = runTest {
+        mocker.every {
+            surveyRepository.survey(1)
+        } returns flow { error("Fail") }
+
+        surveyListUseCase(1)
+            .catch {
+                it.message shouldBe "Fail"
+            }
+            .collect{
+                fail("Should not receive object")
+            }
+    }
+}