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GetCountryTest.kt
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GetCountryTest.kt
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package com.jaimegc.covid19tracker.usecase
import app.cash.turbine.test
import arrow.core.Either
import com.google.common.truth.Truth.assertThat
import com.jaimegc.covid19tracker.domain.usecase.GetCountry
import com.jaimegc.covid19tracker.ScreenStateFactoryTest.stateErrorUnknownDatabase
import com.jaimegc.covid19tracker.ScreenStateFactoryTest.stateListCountryEmptyData
import com.jaimegc.covid19tracker.ScreenStateFactoryTest.stateListCountryLoading
import com.jaimegc.covid19tracker.ScreenStateFactoryTest.stateListCountrySuccess
import com.jaimegc.covid19tracker.util.UseCaseTest
import dev.olog.flow.test.observer.test
import io.mockk.every
import io.mockk.verify
import kotlinx.coroutines.flow.collectIndexed
import kotlinx.coroutines.flow.flow
import kotlinx.coroutines.test.runBlockingTest
import org.junit.Before
import org.junit.Test
class GetCountryTest : UseCaseTest() {
private lateinit var getCountry: GetCountry
@Before
fun setup() {
init()
getCountry = GetCountry(repository)
}
/**********
* Mockk *
**********/
@Test
fun `get countries should return loading and success`() = runBlockingTest {
val flow = flow {
emit(Either.right(stateListCountryLoading))
emit(Either.right(stateListCountrySuccess))
}
every { repository.getCountries() } returns flow
val flowUseCase = getCountry.getCountries()
verify { repository.getCountries() }
flowUseCase.collectIndexed { index, data ->
when (index) {
0 -> assertThat(data).isEqualTo(Either.right(stateListCountryLoading))
1 -> assertThat(data).isEqualTo(Either.right(stateListCountrySuccess))
}
}
}
@Test
fun `get countries with empty data should return loading and empty success`() = runBlockingTest {
val flow = flow {
emit(Either.right(stateListCountryLoading))
emit(Either.right(stateListCountryEmptyData))
}
every { repository.getCountries() } returns flow
val flowUseCase = getCountry.getCountries()
verify { repository.getCountries() }
flowUseCase.collectIndexed { index, data ->
when (index) {
0 -> assertThat(data).isEqualTo(Either.right(stateListCountryLoading))
1 -> assertThat(data).isEqualTo(Either.right(stateListCountryEmptyData))
}
}
}
@Test
fun `get countries with database problem should return loading and unknown database error`() = runBlockingTest {
val flow = flow {
emit(Either.right(stateListCountryLoading))
emit(Either.left(stateErrorUnknownDatabase))
}
every { repository.getCountries() } returns flow
val flowUseCase = getCountry.getCountries()
verify { repository.getCountries() }
flowUseCase.collectIndexed { index, data ->
when (index) {
0 -> assertThat(data).isEqualTo(Either.right(stateListCountryLoading))
1 -> assertThat(data).isEqualTo(Either.left(stateErrorUnknownDatabase))
}
}
}
/**************
* Flow Test *
**************/
@Test
fun `get countries should return loading and success using flow test`() = runBlockingTest {
val flow = flow {
emit(Either.right(stateListCountryLoading))
emit(Either.right(stateListCountrySuccess))
}
every { repository.getCountries() } returns flow
val flowUseCase = getCountry.getCountries()
verify { repository.getCountries() }
flowUseCase.test(this) {
assertValues(Either.right(stateListCountryLoading), Either.right(stateListCountrySuccess))
assertValueCount(2)
assertComplete()
}
}
@Test
fun `get countries with empty data should return loading and empty success using flow test`() = runBlockingTest {
val flow = flow {
emit(Either.right(stateListCountryLoading))
emit(Either.right(stateListCountryEmptyData))
}
every { repository.getCountries() } returns flow
val flowUseCase = getCountry.getCountries()
verify { repository.getCountries() }
flowUseCase.test(this) {
assertValues(Either.right(stateListCountryLoading), Either.right(stateListCountryEmptyData))
assertValueCount(2)
assertComplete()
}
}
@Test
fun `get countries with database problem should return loading and unknown database error using flow test`() = runBlockingTest {
val flow = flow {
emit(Either.right(stateListCountryLoading))
emit(Either.left(stateErrorUnknownDatabase))
}
every { repository.getCountries() } returns flow
val flowUseCase = getCountry.getCountries()
verify { repository.getCountries() }
flowUseCase.test(this) {
assertValues(Either.right(stateListCountryLoading), Either.left(stateErrorUnknownDatabase))
assertValueCount(2)
assertComplete()
}
}
/************
* Turbine *
************/
@Test
fun `get countries should return loading and success using turbine`() = runBlockingTest {
val flow = flow {
emit(Either.right(stateListCountryLoading))
emit(Either.right(stateListCountrySuccess))
}
every { repository.getCountries() } returns flow
val flowUseCase = getCountry.getCountries()
verify { repository.getCountries() }
flowUseCase.test {
assertThat(Either.right(stateListCountryLoading)).isEqualTo(expectItem())
assertThat(Either.right(stateListCountrySuccess)).isEqualTo(expectItem())
expectComplete()
}
}
@Test
fun `get countries with empty data should return loading and empty success using turbine`() = runBlockingTest {
val flow = flow {
emit(Either.right(stateListCountryLoading))
emit(Either.right(stateListCountryEmptyData))
}
every { repository.getCountries() } returns flow
val flowUseCase = getCountry.getCountries()
verify { repository.getCountries() }
flowUseCase.test {
assertThat(Either.right(stateListCountryLoading)).isEqualTo(expectItem())
assertThat(Either.right(stateListCountryEmptyData)).isEqualTo(expectItem())
expectComplete()
}
}
@Test
fun `get countries with database problem should return loading and unknown database error using turbine`() = runBlockingTest {
val flow = flow {
emit(Either.right(stateListCountryLoading))
emit(Either.left(stateErrorUnknownDatabase))
}
every { repository.getCountries() } returns flow
val flowUseCase = getCountry.getCountries()
verify { repository.getCountries() }
flowUseCase.test {
assertThat(Either.right(stateListCountryLoading)).isEqualTo(expectItem())
assertThat(Either.left(stateErrorUnknownDatabase)).isEqualTo(expectItem())
expectComplete()
}
}
}