test implementation for refresh app data usecase

app/src/test/java/com/hieuwu/groceriesstore/domain/usecases/impl/RefreshAppDataUseCaseImplTest.kt

@@ -0,0 +1,50 @@
+package com.hieuwu.groceriesstore.domain.usecases.impl
+
+import com.hieuwu.groceriesstore.data.repository.CategoryRepository
+import com.hieuwu.groceriesstore.data.repository.ProductRepository
+import com.hieuwu.groceriesstore.data.repository.RecipeRepository
+import com.hieuwu.groceriesstore.domain.usecases.RefreshAppDataUseCase
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.runBlocking
+import org.junit.Before
+import org.junit.Test
+import org.junit.runner.RunWith
+import org.mockito.Mock
+import org.mockito.junit.MockitoJUnitRunner
+import org.mockito.kotlin.verify
+
+@RunWith(MockitoJUnitRunner::class)
+class RefreshAppDataUseCaseImplTest {
+
+    @Mock
+    lateinit var mockedProductRepository: ProductRepository
+
+    @Mock
+    lateinit var mockedCategoryRepository: CategoryRepository
+
+    @Mock
+    lateinit var mockedRecipeRepository: RecipeRepository
+
+    private lateinit var testee: RefreshAppDataUseCase
+
+    @Before
+    fun setup() {
+        testee = RefreshAppDataUseCaseImpl(
+            productRepository = mockedProductRepository,
+            categoryRepository = mockedCategoryRepository,
+            recipeRepository = mockedRecipeRepository,
+            ioDispatcher = Dispatchers.IO
+        )
+    }
+
+    @Test
+    fun whenExecute_thenCallRepositories() {
+        runBlocking {
+            testee.execute(Unit)
+
+            verify(mockedProductRepository).refreshDatabase()
+            verify(mockedCategoryRepository).refreshDatabase()
+            verify(mockedRecipeRepository).refreshDatabase()
+        }
+    }
+}