Ilya Ryzhenkov
201 lines
9.2 KiB
Kotlin
201 lines
9.2 KiB
Kotlin
package test.collections
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import kotlin.test.*
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import org.junit.Test as test
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class ArraysJVMTest {
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test fun sort() {
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var a = intArray(5, 2, 1, 4, 3)
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var b = intArray(1, 2, 3, 4, 5)
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a.sort()
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for (i in a.indices)
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expect(b[i]) { a[i] }
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}
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test fun copyOf() {
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checkContent(booleanArray(true, false, true, false, true, false).copyOf().iterator(), 6) { it % 2 == 0 }
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checkContent(byteArray(0, 1, 2, 3, 4, 5).copyOf().iterator(), 6) { it.toByte() }
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checkContent(shortArray(0, 1, 2, 3, 4, 5).copyOf().iterator(), 6) { it.toShort() }
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checkContent(intArray(0, 1, 2, 3, 4, 5).copyOf().iterator(), 6) { it }
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checkContent(longArray(0, 1, 2, 3, 4, 5).copyOf().iterator(), 6) { it.toLong() }
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checkContent(floatArray(0.toFloat(), 1.toFloat(), 2.toFloat(), 3.toFloat()).copyOf().iterator(), 4) { it.toFloat() }
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checkContent(doubleArray(0.0, 1.0, 2.0, 3.0, 4.0, 5.0).copyOf().iterator(), 6) { it.toDouble() }
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checkContent(charArray('0', '1', '2', '3', '4', '5').copyOf().iterator(), 6) { (it + '0').toChar() }
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}
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test fun copyOfRange() {
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checkContent(booleanArray(true, false, true, false, true, false).copyOfRange(0, 3).iterator(), 3) { it % 2 == 0 }
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checkContent(byteArray(0, 1, 2, 3, 4, 5).copyOfRange(0, 3).iterator(), 3) { it.toByte() }
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checkContent(shortArray(0, 1, 2, 3, 4, 5).copyOfRange(0, 3).iterator(), 3) { it.toShort() }
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checkContent(intArray(0, 1, 2, 3, 4, 5).copyOfRange(0, 3).iterator(), 3) { it }
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checkContent(longArray(0, 1, 2, 3, 4, 5).copyOfRange(0, 3).iterator(), 3) { it.toLong() }
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checkContent(floatArray(0.toFloat(), 1.toFloat(), 2.toFloat(), 3.toFloat()).copyOfRange(0, 3).iterator(), 3) { it.toFloat() }
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checkContent(doubleArray(0.0, 1.0, 2.0, 3.0, 4.0, 5.0).copyOfRange(0, 3).iterator(), 3) { it.toDouble() }
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checkContent(charArray('0', '1', '2', '3', '4', '5').copyOfRange(0, 3).iterator(), 3) { (it + '0').toChar() }
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}
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test fun reduce() {
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expect(-4) { intArray(1, 2, 3) reduce { a, b -> a - b } }
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expect(-4.toLong()) { longArray(1, 2, 3) reduce { a, b -> a - b } }
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expect(-4.toFloat()) { floatArray(1.toFloat(), 2.toFloat(), 3.toFloat()) reduce { a, b -> a - b } }
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expect(-4.0) { doubleArray(1.0, 2.0, 3.0) reduce { a, b -> a - b } }
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expect('3') { charArray('1', '3', '2') reduce { a, b -> if(a > b) a else b } }
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expect(false) { booleanArray(true, true, false) reduce { a, b -> a && b } }
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expect(true) { booleanArray(true, true) reduce { a, b -> a && b } }
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expect(0.toByte()) { byteArray(3, 2, 1) reduce { a, b -> (a - b).toByte() } }
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expect(0.toShort()) { shortArray(3, 2, 1) reduce { a, b -> (a - b).toShort() } }
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failsWith (javaClass<UnsupportedOperationException>()) {
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intArray().reduce { a, b -> a + b}
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}
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}
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test fun reduceRight() {
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expect(2) { intArray(1, 2, 3) reduceRight { a, b -> a - b } }
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expect(2.toLong()) { longArray(1, 2, 3) reduceRight { a, b -> a - b } }
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expect(2.toFloat()) { floatArray(1.toFloat(), 2.toFloat(), 3.toFloat()) reduceRight { a, b -> a - b } }
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expect(2.0) { doubleArray(1.0, 2.0, 3.0) reduceRight { a, b -> a - b } }
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expect('3') { charArray('1', '3', '2') reduceRight { a, b -> if(a > b) a else b } }
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expect(false) { booleanArray(true, true, false) reduceRight { a, b -> a && b } }
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expect(true) { booleanArray(true, true) reduceRight { a, b -> a && b } }
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expect(2.toByte()) { byteArray(1, 2, 3) reduceRight { a, b -> (a - b).toByte() } }
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expect(2.toShort()) { shortArray(1, 2, 3) reduceRight { a, b -> (a - b).toShort() } }
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failsWith (javaClass<UnsupportedOperationException>()) {
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intArray().reduceRight { a, b -> a + b}
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}
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}
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test fun indexOf() {
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expect(-1) { byteArray(1, 2, 3) indexOf 0 }
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expect(0) { byteArray(1, 2, 3) indexOf 1 }
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expect(1) { byteArray(1, 2, 3) indexOf 2 }
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expect(2) { byteArray(1, 2, 3) indexOf 3 }
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expect(-1) { shortArray(1, 2, 3) indexOf 0 }
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expect(0) { shortArray(1, 2, 3) indexOf 1 }
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expect(1) { shortArray(1, 2, 3) indexOf 2 }
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expect(2) { shortArray(1, 2, 3) indexOf 3 }
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expect(-1) { intArray(1, 2, 3) indexOf 0 }
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expect(0) { intArray(1, 2, 3) indexOf 1 }
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expect(1) { intArray(1, 2, 3) indexOf 2 }
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expect(2) { intArray(1, 2, 3) indexOf 3 }
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expect(-1) { longArray(1, 2, 3) indexOf 0 }
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expect(0) { longArray(1, 2, 3) indexOf 1 }
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expect(1) { longArray(1, 2, 3) indexOf 2 }
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expect(2) { longArray(1, 2, 3) indexOf 3 }
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expect(-1) { floatArray(1.0f, 2.0f, 3.0f) indexOf 0f }
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expect(0) { floatArray(1.0f, 2.0f, 3.0f) indexOf 1.0f }
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expect(1) { floatArray(1.0f, 2.0f, 3.0f) indexOf 2.0f }
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expect(2) { floatArray(1.0f, 2.0f, 3.0f) indexOf 3.0f }
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expect(-1) { doubleArray(1.0, 2.0, 3.0) indexOf 0.0 }
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expect(0) { doubleArray(1.0, 2.0, 3.0) indexOf 1.0 }
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expect(1) { doubleArray(1.0, 2.0, 3.0) indexOf 2.0 }
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expect(2) { doubleArray(1.0, 2.0, 3.0) indexOf 3.0 }
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expect(-1) { charArray('a', 'b', 'c') indexOf 'z' }
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expect(0) { charArray('a', 'b', 'c') indexOf 'a' }
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expect(1) { charArray('a', 'b', 'c') indexOf 'b' }
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expect(2) { charArray('a', 'b', 'c') indexOf 'c' }
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expect(0) { booleanArray(true, false) indexOf true }
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expect(1) { booleanArray(true, false) indexOf false }
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expect(-1) { booleanArray(true) indexOf false }
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}
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test fun isEmpty() {
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assertTrue(intArray().isEmpty())
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assertFalse(intArray(1).isEmpty())
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assertTrue(byteArray().isEmpty())
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assertFalse(byteArray(1).isEmpty())
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assertTrue(shortArray().isEmpty())
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assertFalse(shortArray(1).isEmpty())
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assertTrue(longArray().isEmpty())
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assertFalse(longArray(1).isEmpty())
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assertTrue(charArray().isEmpty())
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assertFalse(charArray('a').isEmpty())
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assertTrue(floatArray().isEmpty())
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assertFalse(floatArray(0.1.toFloat()).isEmpty())
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assertTrue(doubleArray().isEmpty())
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assertFalse(doubleArray(0.1).isEmpty())
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assertTrue(booleanArray().isEmpty())
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assertFalse(booleanArray(false).isEmpty())
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}
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test fun isNotEmpty() {
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assertFalse(intArray().isNotEmpty())
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assertTrue(intArray(1).isNotEmpty())
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}
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test fun min() {
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expect(null, { intArray().min() })
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expect(1, { intArray(1).min() })
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expect(2, { intArray(2, 3).min() })
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expect(2000000000000, { longArray(3000000000000, 2000000000000).min() })
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expect(1, { byteArray(1, 3, 2).min() })
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expect(2, { shortArray(3, 2).min() })
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expect(2.0.toFloat(), { floatArray(3.0.toFloat(), 2.0.toFloat()).min() })
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expect(2.0, { doubleArray(2.0, 3.0).min() })
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expect('a', { charArray('a', 'b').min() })
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}
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test fun max() {
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expect(null, { intArray().max() })
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expect(1, { intArray(1).max() })
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expect(3, { intArray(2, 3).max() })
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expect(3000000000000, { longArray(3000000000000, 2000000000000).max() })
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expect(3, { byteArray(1, 3, 2).max() })
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expect(3, { shortArray(3, 2).max() })
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expect(3.0.toFloat(), { floatArray(3.0.toFloat(), 2.0.toFloat()).max() })
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expect(3.0, { doubleArray(2.0, 3.0).max() })
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expect('b', { charArray('a', 'b').max() })
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}
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test fun minBy() {
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expect(null, { intArray().minBy { it } })
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expect(1, { intArray(1).minBy { it } })
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expect(3, { intArray(2, 3).minBy { -it } })
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expect(2000000000000, { longArray(3000000000000, 2000000000000).minBy { it + 1 } })
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expect(1, { byteArray(1, 3, 2).minBy { it * it } })
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expect(3, { shortArray(3, 2).minBy { "a" } })
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expect(2.0.toFloat(), { floatArray(3.0.toFloat(), 2.0.toFloat()).minBy { it.toString() } })
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expect(2.0, { doubleArray(2.0, 3.0).minBy { Math.sqrt(it) } })
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}
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test fun minIndex() {
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val a = intArray(1, 7, 9, -42, 54, 93)
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expect(3, { a.indices.minBy { a[it] } })
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}
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test fun maxBy() {
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expect(null, { intArray().maxBy { it } })
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expect(1, { intArray(1).maxBy { it } })
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expect(2, { intArray(2, 3).maxBy { -it } })
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expect(3000000000000, { longArray(3000000000000, 2000000000000).maxBy { it + 1 } })
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expect(3, { byteArray(1, 3, 2).maxBy { it * it } })
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expect(3, { shortArray(3, 2).maxBy { "a" } })
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expect(3.0.toFloat(), { floatArray(3.0.toFloat(), 2.0.toFloat()).maxBy { it.toString() } })
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expect(3.0, { doubleArray(2.0, 3.0).maxBy { Math.sqrt(it) } })
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}
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test fun maxIndex() {
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val a = intArray(1, 7, 9, 239, 54, 93)
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expect(3, { a.indices.maxBy { a[it] } })
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}
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test fun sum() {
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expect(0) { intArray().sum() }
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expect(14) { intArray(2, 3, 9).sum() }
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expect(3.0) { doubleArray(1.0, 2.0).sum() }
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expect(200) { byteArray(100, 100).sum() }
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expect(50000) { shortArray(20000, 30000).sum() }
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expect(3000000000000) { longArray(1000000000000, 2000000000000).sum() }
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expect(3.0.toFloat()) { floatArray(1.0.toFloat(), 2.0.toFloat()).sum() }
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}
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}
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