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How to use beLowerCase method of io.kotest.matchers.string.case class

Best Kotest code snippet using io.kotest.matchers.string.case.beLowerCase

matchers.kt

Source:matchers.kt

...34    "${value.show().value} should contain the substring ${substring.show().value} exactly once",35    "${value.show().value} should not contain the substring ${substring.show().value} exactly once"36  )37}38fun String?.shouldBeLowerCase() = this should beLowerCase()39fun String?.shouldNotBeLowerCase() = this shouldNot beLowerCase()40fun beLowerCase() = neverNullMatcher<String> { value ->41  MatcherResult(42    value.toLowerCase() == value,43    "${value.show().value} should be lower case",44    "${value.show().value} should not should be lower case")45}46fun String?.shouldBeUpperCase() = this should beUpperCase()47fun String?.shouldNotBeUpperCase() = this shouldNot beUpperCase()48fun beUpperCase() = neverNullMatcher<String> { value ->49  MatcherResult(50    value.toUpperCase() == value,51    "${value.show().value} should be upper case",52    "${value.show().value} should not should be upper case")53}54fun String?.shouldBeEmpty() = this should beEmpty()...

StringIT.kt

Source:StringIT.kt

...6import io.kotest.matchers.collections.shouldNotContainAnyOf7import io.kotest.matchers.ints.shouldBeLessThan8import io.kotest.matchers.should9import io.kotest.matchers.shouldBe10import io.kotest.matchers.string.beLowerCase11import io.kotest.matchers.string.beUpperCase12import io.kotest.matchers.string.shouldContain13import io.kotest.matchers.string.shouldNotContain14class StringIT : DescribeSpec() {15    private val faker = faker {16        fakerConfig {17            uniqueGeneratorRetryLimit = 100018        }19    }20    private val sourceString = "foo###bar???"21    override fun beforeEach(testCase: TestCase) {22        faker.unique.clearAll()23        faker.string.unique.clearAll()24    }25    init {26        describe("String Provider") {27            context("numerify") {28                it("should NOT contain # chars") {29                    faker.string.numerify(sourceString) shouldNotContain "#"30                    faker.string.numerify(sourceString) shouldContain "?"31                }32                it("can have duplicates") {33                    val list = List(1000) { faker.string.numerify(sourceString) }34                    list.distinct().size shouldBeLessThan 100035                }36            }37            context("letterify") {38                it("should NOT contain ? chars") {39                    faker.string.letterify(sourceString) shouldNotContain "?"40                    faker.string.letterify(sourceString) shouldContain "#"41                }42                it("can have duplicates") {43                    val list = List(1000) { faker.string.letterify(sourceString) }44                    list.distinct().size shouldBeLessThan 100045                }46                it("should be upper") {47                    faker.string.letterify("###", true) should beUpperCase()48                }49                it("should be lower") {50                    faker.string.letterify("###", false) should beLowerCase()51                }52            }53            context("bothify") {54                it("should NOT contain ? and # chars") {55                    faker.string.bothify(sourceString) shouldNotContain "?"56                    faker.string.bothify(sourceString) shouldNotContain "#"57                }58                it("can have duplicates") {59                    val list = List(1000) { faker.string.bothify("foo#bar?") }60                    list.distinct().size shouldBeLessThan 100061                }62                it("should be upper") {63                    faker.string.bothify("###", true) should beUpperCase()64                }65                it("should be lower") {66                    faker.string.bothify("###", false) should beLowerCase()67                }68            }69            context("regexify") {70                it("should resolve the regex to a string") {71                    faker.string.regexify("""\d{6}""").all { it.isDigit() } shouldBe true72                }73                it("can have duplicates") {74                    val list = List(1000) { faker.string.regexify("""\d\w""") }75                    list.distinct().size shouldBeLessThan 100076                }77            }78        }79        describe("Local unique provider") {80            context("numerify") {...

LowercaseTest.kt

Source:LowercaseTest.kt

...3import io.kotest.core.spec.style.FreeSpec4import io.kotest.matchers.should5import io.kotest.matchers.shouldBe6import io.kotest.matchers.shouldNot7import io.kotest.matchers.string.beLowerCase8import io.kotest.matchers.string.shouldBeLowerCase9import io.kotest.matchers.string.shouldNotBeLowerCase10class LowercaseTest : FreeSpec({11   "string should beLowerCase()" - {12      "should test that a string is lower case" {13         "" should beLowerCase()14         "hello" should beLowerCase()15         "HELLO" shouldNot beLowerCase()16         "HELlo" shouldNot beLowerCase()17         "hello".shouldBeLowerCase()18         "HELLO".shouldNotBeLowerCase()19      }20      "should support char seqs" {21         val cs = "HELLO"22         cs.shouldNotBeLowerCase()23         val cs2 = "hello"24         cs2.shouldBeLowerCase()25      }26      "should support nullable char seqs" {27         val cs: CharSequence? = "HELLO"28         cs.shouldNotBeLowerCase()29         val cs2: CharSequence? = "hello"30         cs2.shouldBeLowerCase()31      }32      "should fail if value is null" {33         shouldThrow<AssertionError> {34            null shouldNot beLowerCase()35         }.message shouldBe "Expecting actual not to be null"36         shouldThrow<AssertionError> {37            null.shouldNotBeLowerCase()38         }.message shouldBe "Expecting actual not to be null"39         shouldThrow<AssertionError> {40            null should beLowerCase()41         }.message shouldBe "Expecting actual not to be null"42         shouldThrow<AssertionError> {43            null.shouldBeLowerCase()44         }.message shouldBe "Expecting actual not to be null"45      }46   }47})...

case.kt

Source:case.kt

...21         "${value.print().value} should not should be upper case"22      })23}24fun <A : CharSequence?> A.shouldBeLowerCase(): A {25   this should beLowerCase()26   return this27}28fun <A : CharSequence?> A.shouldNotBeLowerCase(): A {29   this shouldNot beLowerCase()30   return this31}32fun beLowerCase(): Matcher<CharSequence?> = neverNullMatcher { value ->33   MatcherResult(34      value.toString().lowercase() == value,35      { "${value.print().value} should be lower case" },36      {37         "${value.print().value} should not should be lower case"38      })39}...

beLowerCase

Using AI Code Generation

1init {2"toLowercase" {3"Hello World".should.beLowerCase()4}5}6}7init {8"toLowercase" {9"Hello World".should.beLowerCase()10}11}12}13init {14"toLowercase" {15"Hello World".should.beLowerCase()16}17}18}19init {20"toLowercase" {21"Hello World".should.beLowerCase()22}23}24}25init {26"toLowercase" {27"Hello World".should.beLowerCase()28}29}30}31init {32"toLowercase" {33"Hello World".should.beLowerCase()34}35}36}37init {38"toLowercase" {39"Hello World".should.beLowerCase()40}41}42}43init {44"toLowercase" {45"Hello World".should.beLowerCase()46}47}48}49init {50"toLowercase" {51"Hello World".should.beLowerCase()52}53}54}55init {56"toLowercase" {57"Hello World".should.beLowerCase()58}59}60}61init {62"toLowercase" {63"Hello World".should.beLowerCase()64}65}66}67init {68"toLowercase" {69"Hello World".should.beLowerCase()70}71}72}

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