Unlock 30% off on Manual Testing Annual Plans this Holiday Season.

Copied to Clipboard!

How to use beNullable method of io.kotest.matchers.property.matchers class

Best Kotest code snippet using io.kotest.matchers.property.matchers.beNullable

matchers.kt

Source:matchers.kt

...3import io.kotest.matchers.MatcherResult4import io.kotest.matchers.should5import kotlin.reflect.KMutableProperty6import kotlin.reflect.KProperty7fun beNullable() = Matcher<KProperty<*>> {8   MatcherResult(9      it.returnType.isMarkedNullable,10      { "Property $it return type should be nullable" },11      { "Property $it return type should not be nullable" },12   )13}14fun beNotNullable() = beNullable().invert()15fun beMutable() = Matcher<KProperty<*>> {16   MatcherResult(17      it is KMutableProperty<*>,18      { "Property $it return type should be mutable" },19      { "Property $it return type should be immutable" },20   )21}22fun beImmutable() = beMutable().invert()23fun beNamed(expectedName: String) = Matcher<KProperty<*>> {24   MatcherResult(25      it.name == expectedName,26      { "Property $it should be named $expectedName" },27      { "Property $it should not be named $expectedName" },28   )29}30fun KProperty<*>.shouldBeNullable() = this should beNullable()31fun KProperty<*>.shouldBeNotNullable() = this should beNullable().invert()32fun KProperty<*>.shouldBeMutable() = this should beMutable()33fun KProperty<*>.shouldBeImmutable() = this should beImmutable()34infix fun KProperty<*>.shouldBeNamed(expectedName: String) = this should beNamed(expectedName)...

Automation Testing Tutorials

Learn to execute automation testing from scratch with LambdaTest Learning Hub. Right from setting up the prerequisites to run your first automation test, to following best practices and diving deeper into advanced test scenarios. LambdaTest Learning Hubs compile a list of step-by-step guides to help you be proficient with different test automation frameworks i.e. Selenium, Cypress, TestNG etc.