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app/src/test/java/com/example/kocelainterview/ExampleUnitTest.kt
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.../test/java/com/example/kocelainterview/presentation/ships_screen/ShipListViewModelTest.kt
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,72 @@ | ||
| package com.example.kocelainterview.presentation.ships_screen | ||
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| import com.example.kocelainterview.common.core.Resource | ||
| import com.example.kocelainterview.domain.model.Ship | ||
| import com.example.kocelainterview.domain.use_case.get_ships.GetShipsUseCase | ||
| import io.mockk.every | ||
| import io.mockk.mockk | ||
| import kotlinx.coroutines.Dispatchers | ||
| import kotlinx.coroutines.flow.flow | ||
| import kotlinx.coroutines.test.runBlockingTest | ||
| import kotlinx.coroutines.test.setMain | ||
| import org.junit.Assert.* | ||
| import org.junit.Before | ||
| import org.junit.Test | ||
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| class ShipListViewModelTest { | ||
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| private lateinit var viewModel: ShipListViewModel | ||
| private lateinit var getShipsUseCase: GetShipsUseCase | ||
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| @Before | ||
| fun setup() { | ||
| Dispatchers.setMain(Dispatchers.Unconfined) | ||
| getShipsUseCase = mockk(relaxed = true) // Use relaxed mode to handle final classes | ||
| viewModel = ShipListViewModel(getShipsUseCase) | ||
| } | ||
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| @Test | ||
| fun testLoadingState(): Unit = runBlockingTest { | ||
| // Given | ||
| val loadingStateFlow = flow<Resource<List<Ship>>> { emit(Resource.Loading()) } | ||
| every { getShipsUseCase() } returns loadingStateFlow | ||
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| // When | ||
| viewModel.getShips() | ||
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| // Then | ||
| assertEquals(ShipListState(isLoading = true), viewModel.state.value) | ||
| } | ||
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| @Test | ||
| fun testSuccessState(): Unit = runBlockingTest { | ||
| // Given | ||
| val mockShips = listOf(Ship( | ||
| true, "image1.jpg", "ship_id_1", "Ship 1", 1000, 2020 | ||
| )) | ||
| val successStateFlow = flow<Resource<List<Ship>>> { emit(Resource.Success(mockShips)) } | ||
| every { getShipsUseCase() } returns successStateFlow | ||
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| // When | ||
| viewModel.getShips() | ||
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| // Then | ||
| assertEquals(ShipListState(ships = mockShips), viewModel.state.value) | ||
| } | ||
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| @Test | ||
| fun testErrorState(): Unit = runBlockingTest { | ||
| // Given | ||
| val errorMessage = "An error occurred" | ||
| val errorStateFlow = flow<Resource<List<Ship>>> { emit(Resource.Error(errorMessage)) } | ||
| every { getShipsUseCase() } returns errorStateFlow | ||
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| // When | ||
| viewModel.getShips() | ||
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| // Then | ||
| assertEquals(ShipListState(error = errorMessage), viewModel.state.value) | ||
| } | ||
| } | ||
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