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test case added for GetProductsListUseCase
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Yashraj254 committed Oct 7, 2023
1 parent 821e22a commit 58003a4
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package com.hieuwu.groceriesstore.domain.usecases.impl

import com.hieuwu.groceriesstore.data.repository.ProductRepository
import com.hieuwu.groceriesstore.domain.models.ProductModel
import com.hieuwu.groceriesstore.domain.usecases.GetProductsListUseCase
import junit.framework.TestCase.assertEquals
import kotlinx.coroutines.flow.flow
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.whenever

@RunWith(MockitoJUnitRunner::class)

class GetProductsListUseCaseImplTest {

@Mock
lateinit var mockedProductsRepository: ProductRepository

private lateinit var testee: GetProductsListUseCase

@Before
fun setUp() {
testee = GetProductsListUseCaseImpl(
productRepository = mockedProductsRepository
)
}

@Test
fun givenUserAvailable_whenExecute_thenReturnCorrectValue() {
val mockedProducts = listOf(
ProductModel(id = "1", name = "Apple", price = 1.0, image = "image1.jpg", description = "Fruit", nutrition = "Healthy"),
ProductModel(id = "2", name = "Fries", price = 5.0, image = "image2.jpg", description = "Junk food", nutrition = "Unhealthy"),
ProductModel(id = "3", name = "Potato", price = 10.0, image = "image3.jpg", description = "Vegetable", nutrition = "Healthy"),
)
whenever(mockedProductsRepository.products).thenReturn(flow {
emit(mockedProducts)
})
runBlocking {
val result = testee.execute(GetProductsListUseCase.Input())

result.result.collect { products ->
assertEquals(mockedProducts[0], products[0])
assertEquals(mockedProducts[1], products[1])
assertEquals(mockedProducts[2], products[2])
assertEquals(mockedProducts[1].name, "Fries")
}
}
}

@Test
fun givenProductsUnavailable_whenExecute_thenReturnCorrectValue() {
whenever(mockedProductsRepository.products).thenReturn(flow {
emit(listOf())
})

runBlocking {
val result = testee.execute(GetProductsListUseCase.Input())
result.result.collect {
assertEquals(it.isEmpty(), true)
}
}
}

}

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