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How to use Optional.shouldNotBeEmpty method of io.kotest.matchers.optional.matchers class

Best Kotest code snippet using io.kotest.matchers.optional.matchers.Optional.shouldNotBeEmpty

ArgumentsTest.kt

Source:ArgumentsTest.kt

1package de.qualersoft.robotframework.gradleplugin.utils2import io.kotest.assertions.assertSoftly3import io.kotest.core.spec.style.AnnotationSpec4import io.kotest.matchers.Matcher5import io.kotest.matchers.MatcherResult6import io.kotest.matchers.collections.shouldHaveElementAt7import io.kotest.matchers.collections.shouldHaveSize8import io.kotest.matchers.should9import io.kotest.matchers.shouldNot10import java.io.File11class ArgumentsTest : AnnotationSpec() {12  private lateinit var sut: Arguments13  @BeforeEach14  fun setupTest() {15    sut = Arguments()16  }17  @Test18  fun givenNewArgumentsThenResultIsEmpty() {19    sut.shouldBeEmpty()20  }21  @Test22  fun whenAddingAnOptionalFileOfNullThenResultIsEmpty() {23    sut.addOptionalFile(null, "a")24    sut.shouldBeEmpty()25  }26  @Test27  fun whenAddingAnOptionalNonNullFileThenResultIsNotEmpty() {28    sut.addOptionalFile(File("./test"), "a")29    assertSoftly {30      sut.shouldNotBeEmpty()31      val arr = sut.toArray()32      arr.shouldHaveSize(2)33      arr.shouldHaveElementAt(0, "a")34      arr.shouldHaveElementAt(1, File("./test").path)35    }36  }37  @Test38  fun whenAddingNullFileThenItsConvertedToNone() {39    sut.addFileToArguments(null, "f")40    assertSoftly {41      sut.shouldNotBeEmpty()42      val arr = sut.toArray()43      arr.shouldHaveSize(2)44      arr.shouldHaveElementAt(0, "f")45      arr.shouldHaveElementAt(1, "NONE")46    }47  }48  @Test49  fun whenAddingNonEmptyFileThenItWillBeInResult() {50    sut.addFileToArguments(File("./test"), "f")51    assertSoftly {52      sut.shouldNotBeEmpty()53      val arr = sut.toArray()54      arr.shouldHaveSize(2)55      arr.shouldHaveElementAt(0, "f")56      arr.shouldHaveElementAt(1, File("./test").path)57    }58  }59  @Test60  fun whenAddingEmptyFileThenItsNotInResult() {61    sut.addFileToArguments(File(""), "f")62    sut.shouldBeEmpty()63  }64  @Test65  fun whenAddingNullStringThenItsNotInResult() {66    sut.addNonEmptyStringToArguments(null, "s")67    sut.shouldBeEmpty()68  }69  @Test70  fun whenAddingEmptyStringThenItsNotInResult() {71    sut.addNonEmptyStringToArguments("", "s")72    sut.shouldBeEmpty()73  }74  @Test75  fun whenAddingNonEmptyStringThenItsInResult() {76    sut.addNonEmptyStringToArguments("notEmpty", "s")77    assertSoftly {78      sut.shouldNotBeEmpty()79      val arr = sut.toArray()80      arr.shouldHaveSize(2)81      arr.shouldHaveElementAt(0, "s")82      arr.shouldHaveElementAt(1, "notEmpty")83    }84  }85  @Test86  fun whenAddingEmptyMapThenItsNotInResult() {87    sut.addMapToArguments(mapOf(), "m")88    sut.shouldBeEmpty()89  }90  @Test91  fun whenAddingMapThenItsInResult() {92    sut.addMapToArguments(mapOf("key" to "val"), "m")93    assertSoftly {94      sut.shouldNotBeEmpty()95      val arr = sut.toArray()96      arr.shouldHaveSize(2)97      arr.shouldHaveElementAt(0, "m")98      arr.shouldHaveElementAt(1, "key:val")99    }100  }101  @Test102  fun whenAddingMultiMapThenItsInResult() {103    sut.addMapToArguments(mapOf("key1" to "val1", "key2" to "val2"), "m")104    assertSoftly {105      sut.shouldNotBeEmpty()106      val arr = sut.toArray()107      arr.shouldHaveSize(4)108      arr.shouldHaveElementAt(0, "m")109      arr.shouldHaveElementAt(1, "key1:val1")110      arr.shouldHaveElementAt(2, "m")111      arr.shouldHaveElementAt(3, "key2:val2")112    }113  }114  @Test115  fun whenAddingNullFlagThenItsNotInResult() {116    sut.addFlagToArguments(null, "b")117    sut.shouldBeEmpty()118  }119  @Test120  fun whenAddingFalseFlagThenItsNotInResult() {121    sut.addFlagToArguments(false, "b")122    sut.shouldBeEmpty()123  }124  @Test125  fun whenAddingTrueFlagThenItsInResult() {126    sut.addFlagToArguments(true, "b")127    assertSoftly {128      sut.shouldNotBeEmpty()129      val arr = sut.toArray()130      arr.shouldHaveSize(1)131      arr.shouldHaveElementAt(0, "b")132    }133  }134  @Test135  fun whenAddingOptionalNullStringThenItsNotInResult() {136    sut.addStringToArguments(null, "s")137    sut.shouldBeEmpty()138  }139  @Test140  fun whenAddingOptionalEmptyStringThenItsInResult() {141    sut.addStringToArguments("", "s")142    assertSoftly {143      sut.shouldNotBeEmpty()144      val arr = sut.toArray()145      arr.shouldHaveSize(2)146      arr.shouldHaveElementAt(0, "s")147      arr.shouldHaveElementAt(1, "")148    }149  }150  @Test151  fun whenAddingOptionalNonEmptyStringThenItsInResult() {152    sut.addStringToArguments("NotEmpty", "s")153    assertSoftly {154      sut.shouldNotBeEmpty()155      val arr = sut.toArray()156      arr.shouldHaveSize(2)157      arr.shouldHaveElementAt(0, "s")158      arr.shouldHaveElementAt(1, "NotEmpty")159    }160  }161  @Test162  fun whenAddNullStringListThenItsNotInResult() {163    sut.addListToArguments(null as String?, "s")164    sut.shouldBeEmpty()165  }166  @Test167  fun whenAddStringListThenItsInResult() {168    sut.addListToArguments("aString", "s")169    assertSoftly {170      sut.shouldNotBeEmpty()171      val arr = sut.toArray()172      arr.shouldHaveSize(2)173      arr.shouldHaveElementAt(0, "s")174      arr.shouldHaveElementAt(1, "aString")175    }176  }177  @Test178  fun whenAddingMultiStringListThenEachIsInResult() {179    sut.addListToArguments("str1, str2", "s")180    assertSoftly {181      sut.shouldNotBeEmpty()182      val arr = sut.toArray()183      arr.shouldHaveSize(4)184      arr.shouldHaveElementAt(0, "s")185      arr.shouldHaveElementAt(1, "str1")186      arr.shouldHaveElementAt(2, "s")187      arr.shouldHaveElementAt(3, "str2")188    }189  }190  @Test191  fun whenAddingNullListThenItsNotInResult() {192    sut.addListToArguments(null as List<String?>?, "ls")193    sut.shouldBeEmpty()194  }195  @Test196  fun whenAddingEmptyListThenItsNotInResult() {197    sut.addListToArguments(listOf(), "ls")198    sut.shouldBeEmpty()199  }200  @Test201  fun whenAddingListWithNullThenItsNotInResult() {202    sut.addListToArguments(listOf<String?>(null), "ls")203    sut.shouldBeEmpty()204  }205  @Test206  fun whenAddingListWithEmptyThenItsNotInResult() {207    sut.addListToArguments(listOf(""), "ls")208    sut.shouldBeEmpty()209  }210  @Test211  fun whenAddingListThenItsInResult() {212    sut.addListToArguments(listOf("str"), "ls")213    assertSoftly {214      sut.shouldNotBeEmpty()215      val arr = sut.toArray()216      arr.shouldHaveSize(2)217      arr.shouldHaveElementAt(0, "ls")218      arr.shouldHaveElementAt(1, "str")219    }220  }221  @Test222  fun whenAddingListWithMoreElemsThenEachIsInResult() {223    sut.addListToArguments(listOf("str1", "str2"), "ls")224    assertSoftly {225      sut.shouldNotBeEmpty()226      val arr = sut.toArray()227      arr.shouldHaveSize(4)228      arr.shouldHaveElementAt(0, "ls")229      arr.shouldHaveElementAt(1, "str1")230      arr.shouldHaveElementAt(2, "ls")231      arr.shouldHaveElementAt(3, "str2")232    }233  }234  @Test235  fun whenAddingNullFileListThenItsNotInResult() {236    sut.addFileListToArguments(null, "fl")237    sut.shouldBeEmpty()238  }239  @Test240  fun whenAddingEmptyFileListThenItsNotInResult() {241    sut.addFileListToArguments(listOf(), "fl")242    sut.shouldBeEmpty()243  }244  @Test245  fun whenAddingFileListWithEmptyFileThenItsNotInResult() {246    sut.addFileListToArguments(listOf(File("")), "fl")247    sut.shouldBeEmpty()248  }249  @Test250  fun whenAddingFileListWithFileThenItsInResult() {251    sut.addFileListToArguments(listOf(File("./test")), "fl")252    assertSoftly {253      sut.shouldNotBeEmpty()254      val arr = sut.toArray()255      arr.shouldHaveSize(2)256      arr.shouldHaveElementAt(0, "fl")257      arr.shouldHaveElementAt(1, File("./test").path)258    }259  }260  // <editor-fold desc="Helper extensions">261  private fun beEmpty() = object : Matcher<Arguments> {262    override fun test(value: Arguments) = MatcherResult(263      value.toArray().isEmpty(),264      "Arguments $value should be empty",265      "String $value should not be empty"266    )267  }268  private fun Arguments.shouldBeEmpty() = this should beEmpty()269  private fun Arguments.shouldNotBeEmpty() = this shouldNot beEmpty()270  // </editor-fold>271}...

OptionalMatchersTest.kt

Source:OptionalMatchersTest.kt

1package com.sksamuel.kotest.matchers.optional2import io.kotest.assertions.throwables.shouldThrow3import io.kotest.core.spec.style.ShouldSpec4import io.kotest.matchers.optional.beEmpty5import io.kotest.matchers.optional.bePresent6import io.kotest.matchers.optional.shouldBeEmpty7import io.kotest.matchers.optional.shouldBePresent8import io.kotest.matchers.optional.shouldNotBeEmpty9import io.kotest.matchers.optional.shouldNotBePresent10import io.kotest.matchers.should11import io.kotest.matchers.shouldBe12import io.kotest.matchers.shouldNot13import io.kotest.matchers.throwable.shouldHaveMessage14import java.util.Optional15class OptionalMatchersTest : ShouldSpec({16    context("Empty optional") {17        val optional = Optional.empty<Any>()18        should("Be empty") {19            optional.shouldBeEmpty()20            optional should beEmpty()21        }22        should("Not be present") {23            optional.shouldNotBePresent()24            optional shouldNot bePresent()25        }26        should("Fail to be notEmpty") {27            shouldThrow<AssertionError> { optional.shouldNotBeEmpty() }28            shouldThrow<AssertionError> { optional shouldNot beEmpty() }29        }30        should("Fail to be present") {31            shouldThrow<AssertionError> { optional.shouldBePresent() }32            shouldThrow<AssertionError> { optional should bePresent() }33        }34    }35    context("Present optional") {36        val optional = Optional.of("A")37        should("Be present") {38            optional.shouldBePresent()39            optional should bePresent()40        }41        42        should("Return the present value for usage in more assertions") {43            optional.shouldBePresent() shouldBe "A"44        } 45        should("Allow matchers with present value as a receiver") {46            optional shouldBePresent {47                this shouldBe "A"48            }49        }50        51        should("Allow matchers with present value as parameter") {52            optional shouldBePresent {53                it shouldBe "A"54            }55        }56        57        should("Execute code inside the receiver") {58            shouldThrow<RuntimeException> {59                optional shouldBePresent {60                    throw RuntimeException("Ensuring the block is actually executed")61                }62            } shouldHaveMessage "Ensuring the block is actually executed"63            64            shouldThrow<AssertionError> {65                optional shouldBePresent {66                    this shouldBe "B"67                }68            }69        }70    }71}) ...

matchers.kt

Source:matchers.kt

1package io.kotest.matchers.optional2import io.kotest.matchers.Matcher3import io.kotest.matchers.MatcherResult4import io.kotest.matchers.should5import io.kotest.matchers.shouldNot6import java.util.Optional7/**8 * Asserts that a [Optional] is empty9 *10 * ```11 * Optional.empty().shouldBeEmpty() // Assertion passes12 *13 * Optional.of("A").shouldBeEmpty() // Assertion fails14 * ```15 */16fun <T> Optional<T>.shouldBeEmpty() = this should beEmpty()17/**18 * Asserts that a [Optional] is not empty19 *20 * ```21 * Optional.of("A").shouldNotBeEmpty() // Assertion passes22 *23 * Optional.empty().shouldNotBeEmpty() // Assertion fails24 * ```25 */26fun <T> Optional<T>.shouldNotBeEmpty() = this shouldNot beEmpty()27/**28 * Matcher to verify whether an [Optional] is empty or not29 */30fun <T> beEmpty() = object : Matcher<Optional<T>> {31    override fun test(value: Optional<T>) = MatcherResult(32       !value.isPresent,33       { "Expected optional to be empty, but instead was ${value.get()}" },34       { "Expected optional to not be empty, but was" }35    )36}37/**38 * Verifies if this [Optional] is present then execute [block] with it's value39 *40 * ```41 * val optional = Optional.of("A")42 *43 * optional shouldBePresent {44 *     it shouldBe "A"45 * }46 *47 * ```48 */49infix fun <T> Optional<T>.shouldBePresent(block: T.(value: T) -> Unit): T {50    shouldBePresent()51    get().block(get())52    return get()53}54/**55 * Verifies if this [Optional] is present56 *57 * ```58 * val optional = Optional.of("A")59 *60 * optional.shouldBePresent()61 *62 * ```63 *64 * Further assertions can be made using the returned value65 *66 * ```67 * val optional = Optional.of("A")68 *69 * val present = optional.shouldBePresent()70 * present shouldBe "A"71 * ```72 *73 */74fun <T> Optional<T>.shouldBePresent(): T {75    this should bePresent()76    return get()77}78/**79 * Verifies t hat this Optional contains no value80 */81fun <T> Optional<T>.shouldNotBePresent() = this shouldNot bePresent()82/**83 * Matcher to verify whether a matcher contains a value or not84 */85fun <T> bePresent() = object : Matcher<Optional<T>> {86    override fun test(value: Optional<T>) = MatcherResult(87       value.isPresent,88       { "Expected optional to be present, but was empty instead" },89       { "Expected optional to not be present, but was ${value.get()}" }90    )91}...

Optional.shouldNotBeEmpty

Using AI Code Generation

1import io.kotest.matchers.optional.shouldNotBeEmpty2import io.kotest.matchers.optional.shouldNotBeNull3import io.kotest.matchers.optional.shouldNotBePresent4import io.kotest.matchers.optional.shouldNotBePresent5import io.kotest.matchers.optional.shouldNotContain6import io.kotest.matchers.optional.shouldNotContain7import io.kotest.matchers.optional.shouldNotContain8import io.kotest.matchers.optional.shouldNotContain9import io.kotest.matchers.optional.shouldNotContain10import io.kotest.matchers.optional.shouldNotContain11import io.kotest.matchers.optional.shouldNotContain12import io.kotest.matchers.optional.shouldNotContain13import io.kotest.matchers.optional.shouldNotContain14import io.kotest.matchers.optional.shouldNotContain15import io.kotest.matchers.optional.shouldNotContain

Optional.shouldNotBeEmpty

Using AI Code Generation

1val optional : Optional < String > = Optional . empty ()2optional . shouldNotBeEmpty ()3val optional : Optional < String > = Optional . empty ()4optional . shouldNotBeNull ()5val optional : Optional < String > = Optional . empty ()6optional . shouldNotBePresent ()7val optional : Optional < String > = Optional . empty ()8optional . shouldNotContain ( "value" )9val optional : Optional < String > = Optional . empty ()10optional . shouldNotContainAny ( "value" , "value2" )11val optional : Optional < String > = Optional . empty ()12optional . shouldNotContainAll ( "value" , "value2" )13val optional : Optional < String > = Optional . empty ()14optional . shouldNotContainNull ()15val optional : Optional < String > = Optional . empty ()16optional . shouldNotHaveValue ( "value" )17val optional : Optional < String > = Optional . empty ()18optional . shouldNotHaveValueSatisfying { it . length > 0 }19val optional : Optional < String > = Optional . empty ()20optional . shouldNotHaveValueInstanceOf ( String :: class )21val optional : Optional < String > = Optional . empty ()22optional . shouldNotHaveValueSameInstanceAs ( "value" )

Optional.shouldNotBeEmpty

Using AI Code Generation

1val optional = Optional.of(1)2optional.shouldNotBeEmpty()3val optional = Optional.empty()4optional.shouldBeEmpty()5val optional = Optional.of(1)6optional.shouldHaveValue(1)7val optional = Optional.empty()8optional.shouldHaveValue(1)9val optional = Optional.of(1)10optional.shouldContain(1)11val optional = Optional.empty()12optional.shouldContain(1)13val optional = Optional.of(1)14optional.shouldBePresent()15val optional = Optional.empty()16optional.shouldBePresent()17val optional = Optional.of(1)18optional.shouldBePresent { it shouldBe 1 }19val optional = Optional.empty()20optional.shouldBePresent { it shouldBe 1 }21val optional = Optional.of(1)22optional.shouldBePresent { it shouldBe 2 }23val optional = Optional.empty()24optional.shouldBePresent { it shouldBe 2 }25val optional = Optional.of(1)26optional.shouldBePresent { it shouldBe 2 }27val optional = Optional.empty()28optional.shouldBePresent { it shouldBe 2 }

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