Ilya Ryzhenkov
105 lines
3.0 KiB
Kotlin
105 lines
3.0 KiB
Kotlin
package test.tuples
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import org.junit.Test as test
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import kotlin.test.assertTrue
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import kotlin.test.assertEquals
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import kotlin.test.assertNotEquals
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class PairTest {
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val p = Pair(1, "a")
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test fun pairFirstAndSecond() {
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assertEquals(1, p.first)
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assertEquals("a", p.second)
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}
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test fun pairMultiAssignment() {
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val (a, b) = p
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assertEquals(1, a)
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assertEquals("a", b)
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}
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test fun pairToString() {
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assertEquals("(1, a)", p.toString())
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}
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test fun pairEquals() {
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assertEquals(Pair(1, "a"), p)
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assertNotEquals(Pair(2, "a"), p)
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assertNotEquals(Pair(1, "b"), p)
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assertTrue(!p.equals(null))
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assertNotEquals("", (p : Any))
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}
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test fun pairHashCode() {
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assertEquals(Pair(1, "a").hashCode(), p.hashCode())
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assertNotEquals(Pair(2, "a").hashCode(), p.hashCode())
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assertNotEquals(0, Pair(null, "b").hashCode())
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assertNotEquals(0, Pair("b", null).hashCode())
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assertEquals(0, Pair(null, null).hashCode())
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}
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test fun pairHashSet() {
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val s = hashSetOf(Pair(1, "a"), Pair(1, "b"), Pair(1, "a"))
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assertEquals(2, s.size())
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assertTrue(s.contains(p))
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}
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test fun pairToList() {
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assertEquals(listOf(1, 2), (1 to 2).toList())
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assertEquals(listOf(1, null), (1 to null).toList())
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assertEquals(listOf(1, "2"), (1 to "2").toList())
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}
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}
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class TripleTest {
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val t = Triple(1, "a", 0.07)
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test fun tripleFirstAndSecond() {
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assertEquals(1, t.first)
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assertEquals("a", t.second)
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assertEquals(0.07, t.third)
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}
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test fun tripleMultiAssignment() {
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val (a, b, c) = t
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assertEquals(1, a)
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assertEquals("a", b)
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assertEquals(0.07, c)
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}
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test fun tripleToString() {
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assertEquals("(1, a, 0.07)", t.toString())
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}
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test fun tripleEquals() {
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assertEquals(Triple(1, "a", 0.07), t)
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assertNotEquals(Triple(2, "a", 0.07), t)
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assertNotEquals(Triple(1, "b", 0.07), t)
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assertNotEquals(Triple(1, "a", 0.1), t)
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assertTrue(!t.equals(null))
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assertNotEquals("", (t : Any))
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}
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test fun tripleHashCode() {
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assertEquals(Triple(1, "a", 0.07).hashCode(), t.hashCode())
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assertNotEquals(Triple(2, "a", 0.07).hashCode(), t.hashCode())
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assertNotEquals(0, Triple(null, "b", 0.07).hashCode())
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assertNotEquals(0, Triple("b", null, 0.07).hashCode())
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assertNotEquals(0, Triple("b", 1, null).hashCode())
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assertEquals(0, Triple(null, null, null).hashCode())
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}
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test fun tripleHashSet() {
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val s = hashSetOf(Triple(1, "a", 0.07), Triple(1, "b", 0.07), Triple(1, "a", 0.07))
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assertEquals(2, s.size())
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assertTrue(s.contains(t))
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}
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test fun tripleToList() {
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assertEquals(listOf(1, 2, 3), (Triple(1, 2, 3)).toList())
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assertEquals(listOf(1, null, 3), (Triple(1, null, 3)).toList())
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assertEquals(listOf(1, 2, "3"), (Triple(1, 2, "3")).toList())
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}
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}
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