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package com.krossovochkin.butterknifetest | |
import io.reactivex.Observable | |
import io.reactivex.subjects.BehaviorSubject | |
import org.junit.Test | |
class RxUnitTest { | |
/* Base tests */ | |
@Test | |
fun `noEmitAndComplete() completes without emitting value`() { | |
noEmitAndComplete().test() | |
.assertNoValues() | |
.assertComplete() | |
} | |
@Test | |
fun `emitItemAndComplete() emits item and completes`() { | |
emitItemAndComplete().test() | |
.assertValue(ITEM) | |
.assertComplete() | |
} | |
@Test | |
fun `emitItemAndNotComplete() emits item and not complete`() { | |
emitItemAndNotComplete().test() | |
.assertValue(ITEM) | |
.assertNotComplete() | |
} | |
@Test | |
fun `emitMultipleItemsAndComplete() emits items and completes`() { | |
emitMultipleItemsAndComplete().test() | |
.assertValues(ITEM_1, ITEM_2) | |
.assertComplete() | |
} | |
@Test | |
fun `emitMultipleItemsAndNotComplete() emits items and not completes`() { | |
emitMultipleItemsAndNotComplete().test() | |
.assertValues(ITEM_1, ITEM_2) | |
.assertNotComplete() | |
} | |
/* singleOrError */ | |
@Test | |
fun `singleOrError() noEmitAndComplete() terminates with NoSuchElementException`() { | |
noEmitAndComplete().singleOrError().test() | |
.assertNoValues() | |
.assertError(NoSuchElementException::class.java) | |
} | |
@Test | |
fun `singleOrError() emitItemAndComplete() emits one item and completes`() { | |
emitItemAndComplete().singleOrError().test() | |
.assertValue(ITEM) | |
.assertComplete() | |
} | |
@Test | |
fun `singleOrError() emitItemAndNotComplete() emits nothing and not complete`() { | |
emitItemAndNotComplete().singleOrError().test() | |
.assertNoValues() | |
.assertNoErrors() | |
.assertNotComplete() | |
} | |
@Test | |
fun `singleOrError() emitMultipleItemsAndComplete() terminates with IllegalArgumentException`() { | |
emitMultipleItemsAndComplete().singleOrError().test() | |
.assertNoValues() | |
.assertError(IllegalArgumentException::class.java) | |
} | |
@Test | |
fun `singleOrError() emitMultipleItemsAndNotComplete() terminates with IllegalArgumentException`() { | |
emitMultipleItemsAndNotComplete().singleOrError().test() | |
.assertNoValues() | |
.assertError(IllegalArgumentException::class.java) | |
} | |
/* firstOrError */ | |
@Test | |
fun `firstOrError() noEmitAndComplete() terminates with NoSuchElementException`() { | |
noEmitAndComplete().firstOrError().test() | |
.assertNoValues() | |
.assertError(NoSuchElementException::class.java) | |
} | |
@Test | |
fun `firstOrError() emitItemAndComplete() emits item and completes`() { | |
emitItemAndComplete().firstOrError().test() | |
.assertValue(ITEM) | |
.assertNoErrors() | |
.assertComplete() | |
} | |
@Test | |
fun `firstOrError() emitItemAndNotComplete() emits item and completes`() { | |
emitItemAndNotComplete().firstOrError().test() | |
.assertValue(ITEM) | |
.assertNoErrors() | |
.assertComplete() | |
} | |
@Test | |
fun `firstOrError() emitMultipleItemsAndComplete() emits item and completes`() { | |
emitMultipleItemsAndComplete().firstOrError().test() | |
.assertValue(ITEM_1) | |
.assertNoErrors() | |
.assertComplete() | |
} | |
@Test | |
fun `firstOrError() emitMultipleItemsAndNotComplete() emits item and completes`() { | |
emitMultipleItemsAndNotComplete().firstOrError().test() | |
.assertValue(ITEM_1) | |
.assertNoErrors() | |
.assertComplete() | |
} | |
/* first */ | |
@Test | |
fun `first() noEmitAndComplete() emits default item and completes`() { | |
noEmitAndComplete().first(DEFAULT_ITEM).test() | |
.assertValue(DEFAULT_ITEM) | |
.assertComplete() | |
} | |
@Test | |
fun `first() emitAndComplete() emits item and completes`() { | |
emitItemAndComplete().first(DEFAULT_ITEM).test() | |
.assertValue(ITEM) | |
.assertComplete() | |
} | |
@Test | |
fun `first() emitAndNotComplete() emits item and completes`() { | |
emitItemAndNotComplete().first(DEFAULT_ITEM).test() | |
.assertValue(ITEM) | |
.assertComplete() | |
} | |
@Test | |
fun `first() emitMultipleItemsAndComplete() emits item and completes`() { | |
emitMultipleItemsAndComplete().first(DEFAULT_ITEM).test() | |
.assertValue(ITEM_1) | |
.assertComplete() | |
} | |
@Test | |
fun `first() emitMultipleItemsAndNotComplete() emits item and completes`() { | |
emitMultipleItemsAndNotComplete().first(DEFAULT_ITEM).test() | |
.assertValue(ITEM_1) | |
.assertComplete() | |
} | |
/* single */ | |
@Test | |
fun `single() noEmitAndComplete() emits default item and completes`() { | |
noEmitAndComplete().single(DEFAULT_ITEM).test() | |
.assertValue(DEFAULT_ITEM) | |
.assertComplete() | |
} | |
@Test | |
fun `single() emitItemAndComplete() emits item and completes`() { | |
emitItemAndComplete().single(DEFAULT_ITEM).test() | |
.assertValue(ITEM) | |
.assertComplete() | |
} | |
@Test | |
fun `single() emitItemAndNotComplete() emits nothing and not complete`() { | |
emitItemAndNotComplete().single(DEFAULT_ITEM).test() | |
.assertNoValues() | |
.assertNoErrors() | |
.assertNotComplete() | |
} | |
@Test | |
fun `single() emitMultipleItemsAndComplete() terminates with IllegalArgumentException`() { | |
emitMultipleItemsAndComplete().single(DEFAULT_ITEM).test() | |
.assertNoValues() | |
.assertError(IllegalArgumentException::class.java) | |
} | |
@Test | |
fun `single() emitMultipleItemsAndNotComplete() terminates with IllegalArgumentException`() { | |
emitMultipleItemsAndNotComplete().single(DEFAULT_ITEM).test() | |
.assertNoValues() | |
.assertError(IllegalArgumentException::class.java) | |
} | |
private fun noEmitAndComplete() = Observable.empty<String>() | |
private fun emitItemAndComplete() = Observable.just(ITEM) | |
private fun emitItemAndNotComplete() = BehaviorSubject.createDefault(ITEM).hide() | |
private fun emitMultipleItemsAndComplete() = Observable.just(ITEM_1, ITEM_2) | |
private fun emitMultipleItemsAndNotComplete() = Observable.just(ITEM_1, ITEM_2) | |
.concatWith(Observable.never<String>()) | |
companion object { | |
private const val DEFAULT_ITEM = "default_item" | |
private const val ITEM = "item" | |
private const val ITEM_1 = "item1" | |
private const val ITEM_2 = "item2" | |
} | |
} |
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