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/*
* Copyright 2010-2018 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license
* that can be found in the license/LICENSE.txt file.
*/
package numbers
import kotlin.test.*
val Double.Companion.values get() = listOf(0.0, NEGATIVE_INFINITY, MIN_VALUE, MAX_VALUE, POSITIVE_INFINITY, NaN)
val Float.Companion.values get() = listOf(0.0f, NEGATIVE_INFINITY, MIN_VALUE, MAX_VALUE, POSITIVE_INFINITY, NaN)
class NaNPropagationTest {
private fun propagateOf2(
f2d: (Double, Double) -> Double,
f2f: (Float, Float) -> Float,
function: String
) {
with(Double) {
for (d in values) {
assertTrue(f2d(d, NaN).isNaN(), "$function($d, NaN)")
assertTrue(f2d(NaN, d).isNaN(), "$function(NaN, $d)")
}
}
with(Float) {
for (f in values) {
assertTrue(f2f(f, NaN).isNaN(), "$function($f, NaN)")
assertTrue(f2f(NaN, f).isNaN(), "$function(NaN, $f)")
}
}
}
private fun propagateOf3(
f3d: (Double, Double, Double) -> Double,
f3f: (Float, Float, Float) -> Float, function: String
) {
with(Double) {
for (d in values) {
assertTrue(f3d(NaN, d, POSITIVE_INFINITY).isNaN(), "$function(NaN, $d, +inf)")
assertTrue(f3d(d, NaN, POSITIVE_INFINITY).isNaN(), "$function($d, NaN, +inf)")
assertTrue(f3d(d, POSITIVE_INFINITY, NaN).isNaN(), "$function($d, +inf, NaN)")
}
}
with(Float) {
for (f in values) {
assertTrue(f3f(NaN, f, POSITIVE_INFINITY).isNaN(), "$function(NaN, $f, +inf)")
assertTrue(f3f(f, NaN, POSITIVE_INFINITY).isNaN(), "$function($f, NaN, +inf)")
assertTrue(f3f(f, POSITIVE_INFINITY, NaN).isNaN(), "$function($f, +inf, NaN)")
}
}
}
@Test
fun minOf() {
propagateOf2(::minOf, ::minOf, "minOf")
propagateOf3(::minOf, ::minOf, "minOf")
}
@Test
fun maxOf() {
propagateOf2(::maxOf, ::maxOf, "maxOf")
propagateOf3(::maxOf, ::maxOf, "maxOf")
}
@Test
fun arrayMin() {
propagateOf2(
{ a, b -> arrayOf(a, b).min()!! },
{ a, b -> arrayOf(a, b).min()!! },
"arrayOf().min()"
)
}
@Test
fun arrayMax() {
propagateOf2(
{ a, b -> arrayOf(a, b).max()!! },
{ a, b -> arrayOf(a, b).max()!! },
"arrayOf().max()"
)
}
@Test
fun primitiveArrayMin() {
propagateOf2(
{ a, b -> doubleArrayOf(a, b).min()!! },
{ a, b -> floatArrayOf(a, b).min()!! },
"primitiveArrayOf().min()"
)
}
@Test
fun primitiveArrayMax() {
propagateOf2(
{ a, b -> doubleArrayOf(a, b).max()!! },
{ a, b -> floatArrayOf(a, b).max()!! },
"primitiveArrayOf().max()"
)
}
@Test
fun listMin() {
propagateOf2(
{ a, b -> listOf(a, b).min()!! },
{ a, b -> listOf(a, b).min()!! },
"listOf().min()"
)
}
@Test
fun listMax() {
propagateOf2(
{ a, b -> listOf(a, b).max()!! },
{ a, b -> listOf(a, b).max()!! },
"listOf().max()"
)
}
@Test
fun sequenceMin() {
propagateOf2(
{ a, b -> sequenceOf(a, b).min()!! },
{ a, b -> sequenceOf(a, b).min()!! },
"sequenceOf().min()"
)
}
@Test
fun sequenceMax() {
propagateOf2(
{ a, b -> sequenceOf(a, b).max()!! },
{ a, b -> sequenceOf(a, b).max()!! },
"sequenceOf().max()"
)
}
}
class NaNTotalOrderTest {
private fun <T : Comparable<T>> totalOrderMinOf2(f2t: (T, T) -> T, function: String) {
@Suppress("UNCHECKED_CAST")
with(Double) {
assertEquals<Any>(0.0, f2t(0.0 as T, NaN as T), "$function(0, NaN)")
assertEquals<Any>(0.0, f2t(NaN as T, 0.0 as T), "$function(NaN, 0)")
}
}
private fun <T : Comparable<T>> totalOrderMaxOf2(f2t: (T, T) -> T, function: String) {
@Suppress("UNCHECKED_CAST")
with(Double) {
assertTrue((f2t(0.0 as T, NaN as T) as Double).isNaN(), "$function(0, NaN)")
assertTrue((f2t(NaN as T, 0.0 as T) as Double).isNaN(), "$function(NaN, 0)")
}
}
@Test
fun minOfT() {
totalOrderMinOf2<Comparable<Any>>(::minOf, "minOf")
}
@Test
fun maxOfT() {
totalOrderMaxOf2<Comparable<Any>>(::maxOf, "maxOf")
}
@Test
fun arrayTMin() {
totalOrderMinOf2<Comparable<Any>>({ a, b -> arrayOf(a, b).min()!! }, "arrayOf().min()")
}
@Test
fun arrayTMax() {
totalOrderMaxOf2<Comparable<Any>>({ a, b -> arrayOf(a, b).max()!! }, "arrayOf().max()")
}
@Test
fun listTMin() {
totalOrderMinOf2<Comparable<Any>>({ a, b -> listOf(a, b).min()!! }, "listOf().min()")
}
@Test
fun listTMax() {
totalOrderMaxOf2<Comparable<Any>>({ a, b -> listOf(a, b).max()!! }, "listOf().max()")
}
@Test
fun sequenceTMin() {
totalOrderMinOf2<Comparable<Any>>({ a, b -> sequenceOf(a, b).min()!! }, "sequenceOf().min()")
}
@Test
fun sequenceTMax() {
totalOrderMaxOf2<Comparable<Any>>({ a, b -> sequenceOf(a, b).max()!! }, "sequenceOf().max()")
}
}
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