Ilya Gorbunov
32 lines
862 B
Kotlin
32 lines
862 B
Kotlin
package kotlin.jdk8.collections.test
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import org.junit.Test
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import kotlin.test.*
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import java.util.function.Predicate
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import java.util.stream.Collectors
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import kotlin.streams.*
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class CollectionTest {
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val data = listOf("abc", "fo", "baar")
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@Test fun stream() {
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assertEquals(
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data.flatMap { it.asIterable() },
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data.stream()
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.flatMap { it.chars().boxed().map { it.toChar() } }
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.collect(Collectors.toList()))
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assertEquals(data, data.parallelStream().toList())
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}
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@Test fun removeIf() {
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val coll: MutableCollection<String> = data.toMutableList()
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assertTrue(coll.removeIf { it.length < 3 })
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assertEquals(listOf("abc", "baar"), coll as Collection<String>)
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assertFalse(coll.removeIf(Predicate { it.length > 4 }))
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}
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} |