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How to use beNaN method of io.kotest.matchers.floats.NaN class

Best Kotest code snippet using io.kotest.matchers.floats.NaN.beNaN

FloatNaNTest.kt

Source:FloatNaNTest.kt

1package com.sksamuel.kotest.matchers.floats2import com.sksamuel.kotest.matchers.doubles.numericFloats3import io.kotest.assertions.throwables.shouldThrow4import io.kotest.core.spec.style.FunSpec5import io.kotest.matchers.floats.beNaN6import io.kotest.matchers.floats.shouldBeNaN7import io.kotest.matchers.floats.shouldNotBeNaN8import io.kotest.matchers.should9import io.kotest.matchers.shouldBe10import io.kotest.matchers.shouldNot11import io.kotest.property.checkAll12class FloatNaNTest : FunSpec() {13   init {14      context("NaN matcher") {15         test("Every numeric float should not be NaN") {16            checkAll(100, numericFloats) {17               it.shouldNotMatchNaN()18            }19         }20         test("The non-numeric floats") {21            Float.NaN.shouldMatchNaN()22            Float.POSITIVE_INFINITY.shouldNotMatchNaN()23            Float.NEGATIVE_INFINITY.shouldNotMatchNaN()24         }25      }26   }27   private fun Float.shouldMatchNaN() {28      this should beNaN()29      this.shouldBeNaN()30      this.shouldThrowExceptionOnNotBeNaN()31   }32   private fun Float.shouldNotMatchNaN() {33      this shouldNot beNaN()34      this.shouldNotBeNaN()35      this.shouldThrowExceptionOnBeNaN()36   }37   private fun Float.shouldThrowExceptionOnNotBeNaN() {38      shouldThrowAssertionError("$this should not be NaN",39         { this.shouldNotBeNaN() },40         { this shouldNot beNaN() })41   }42   private fun Float.shouldThrowExceptionOnBeNaN() {43      shouldThrowAssertionError("$this should be NaN",44         { this.shouldBeNaN() },45         { this should beNaN() })46   }47   private fun shouldThrowAssertionError(message: String, vararg expression: () -> Any?) {48      expression.forEach {49         val exception = shouldThrow<AssertionError>(it)50         exception.message shouldBe message51      }52   }53}...

NaN.kt

Source:NaN.kt

...13 * ```14 * Float.NaN.shouldBeNaN()   // Assertion passes15 * 1f.shouldBeNaN()          // Assertion fails16 * ```17 * @see [beNaN]18 */19fun Float.shouldBeNaN(): Float {20   this should beNaN()21   return this22}23/**24 * Assert that this [Float] is not [Float.NaN]25 *26 * Verifies that this [Float] is NOT the Not-a-Number constant [Float.NaN]27 *28 * Opposite of [shouldBeNaN]29 *30 * ```31 * 1f.shouldNotBeNaN()         // Assertion passes32 * Float.NaN.shouldNotBeNaN()  // Assertion fails33 * ```34 * @see [beNaN]35 */36fun Float.shouldNotBeNaN(): Float {37   this shouldNot beNaN()38   return this39}40/**41 * Matcher that matches [Float.NaN]42 *43 * Verifies that a specific [Float] is the Not-a-Number constant [Float.NaN]44 *45 * ```46 *  0.5f should beNaN()          // Assertion fails47 *  Float.NaN should beNaN()     // Assertion passes48 * ```49 *50 * @see [Float.shouldBeNaN]51 * @see [Float.shouldNotBeNaN]52 */53fun beNaN() = object : Matcher<Float> {54   override fun test(value: Float) = MatcherResult(55      value.isNaN(),56      { "$value should be NaN" },57      { "$value should not be NaN" })58}...

beNaN

Using AI Code Generation

1    import io.kotest.matchers.floats.beNaN2    import io.kotest.matchers.doubles.bePositive3    import io.kotest.matchers.doubles.beNegative4    import io.kotest.matchers.doubles.beZero5    import io.kotest.matchers.doubles.beNaN6    import io.kotest.matchers.longs.bePositive7    import io.kotest.matchers.longs.beNegative8    import io.kotest.matchers.longs.beZero9    import io.kotest.matchers.ints.bePositive

beNaN

Using AI Code Generation

1import io.kotest.matchers.floats.beNaN2import io.kotest.matchers.floats.NaN3import io.kotest.matchers.doubles.beNaN4import io.kotest.matchers.doubles.NaN5import io.kotest.matchers.longs.beNaN6import io.kotest.matchers.longs.NaN7import io.kotest.matchers.chars.beNaN8import io.kotest.matchers.chars.NaN

beNaN

Using AI Code Generation

1fun testNaN() {2assertThat(flt).isNotEqualTo(Float.NaN)3assertThat(flt).isNotEqualTo(Float.POSITIVE_INFINITY)4assertThat(flt).isNotEqualTo(Float.NEGATIVE_INFINITY)5assertThat(flt).isNotEqualTo(0.0f)6assertThat(flt).isNotEqualTo(1.0f)7assertThat(flt).isNotEqualTo(-1.0f)8assertThat(flt).isNotEqualTo(0.0)9assertThat(flt).isNotEqualTo(1.0)10assertThat(flt).isNotEqualTo(-1.0)11assertThat(flt).isNotEqualTo(0)12assertThat(flt).isNotEqualTo(1)13assertThat(flt).isNotEqualTo(-1)14assertThat(flt).isNotEqualTo("NaN")15assertThat(flt).isNotEqualTo("Infinity")16assertThat(flt).isNotEqualTo("-Infinity")17assertThat(flt).isNotEqualTo("0")18assertThat(flt).isNotEqualTo("1")19assertThat(flt).isNotEqualTo("-1")20assertThat(flt).isNotEqualTo("0.0")21assertThat(flt).isNotEqualTo("1.0")22assertThat(flt).isNotEqualTo("-1.0")23assertThat(flt).isNotEqualTo("0.0f")24assertThat(flt).isNotEqualTo("1.0f")25assertThat(flt).isNotEqualTo("-1.0f")26assertThat(flt).isNotEqualTo("0.0F")27assertThat(flt).isNotEqualTo("1.0F")28assertThat(flt).isNotEqualTo("-1.0F")29assertThat(flt).isNotEqualTo("")30assertThat(flt).isNotEqual

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