How to use print method of io.kotest.assertions.print.DataClassPrintJvm class

Best Kotest code snippet using io.kotest.assertions.print.DataClassPrintJvm.print

DataClassPrintTest.kt

Source:DataClassPrintTest.kt

1package io.kotest.assertions.print2import io.kotest.core.spec.style.FunSpec3import io.kotest.matchers.shouldBe4class DataClassPrintTest : FunSpec() {5   init {6      test("data class print should format data class") {7         val ship = Ship("HMS Queen Elizabeth", "R08", 65000, "Queen Elizabeth", true)8         DataClassPrintJvm().print(ship, 0).value shouldBe9            """10Ship(11  class         =  "Queen Elizabeth"12  displacement  =  65000L13  leadShip      =  true14  name          =  "HMS Queen Elizabeth"15  pennant       =  "R08"16)17""".trim().replace("\n", System.lineSeparator())18      }19      test("data class print should format nested data class") {20         val ship = Ship("HMS Queen Elizabeth", "R08", 65000, "Queen Elizabeth", true)21         val shipyard = Shipyard("Rosyth Dockyard", "Fife, Scotland", ship)22         DataClassPrintJvm().print(shipyard, 0).value shouldBe23            """24Shipyard(25  location  =  "Fife, Scotland"26  name      =  "Rosyth Dockyard"27  starship  =  Ship(28    class         =  "Queen Elizabeth"29    displacement  =  65000L30    leadShip      =  true31    name          =  "HMS Queen Elizabeth"32    pennant       =  "R08"33  )34)35""".trim().replace("\n", System.lineSeparator())36      }37      test("print should default to basic data class output") {38         Ship("HMS Queen Elizabeth", "R08", 65000, "Queen Elizabeth", true).print().value shouldBe39            """Ship(name=HMS Queen Elizabeth, pennant=R08, displacement=65000, class=Queen Elizabeth, leadShip=true)"""40      }41      test("should be resilient to direct cyclic references") {42         val foo1 = Foo(null)43         val foo2 = Foo(foo1)44         foo1.other = foo245         foo1.print().value shouldBe """foo"""46      }47      test("should be resilient to indirect cyclic references") {48         val bar = Bar(4, mutableListOf())49         bar.list.add(bar)50         bar.print().value shouldBe """bar"""51      }52   }53}54data class Shipyard(55   val name: String,56   val location: String,57   val starship: Ship,58)59data class Ship(60   val name: String,61   val pennant: String,62   val displacement: Long,63   val `class`: String,64   val leadShip: Boolean...

dataClassPrint.kt

Source:dataClassPrint.kt

1package io.kotest.assertions.print2import kotlin.reflect.full.declaredMemberProperties3actual fun <A : Any> dataClassPrint(): Print<A> = DataClassPrintJvm()4class DataClassPrintJvm : Print<Any> {5   override fun print(a: Any): Printed = print(a, 0)6   override fun print(a: Any, level: Int): Printed {7      if (level == 10) return Printed("<...>")8      require(a::class.isData) { "This instance of the Print typeclass only supports data classes" }9      if (a::class.declaredMemberProperties.size <= 2) return Printed(a.toString())10      val props = a::class.declaredMemberProperties11      val maxNameLength = props.maxOfOrNull { it.name.length } ?: 012      val str = buildString {13         append(a::class.simpleName)14         append("(")15         props.forEach { property ->16            append(System.lineSeparator())17            append("  ")18            append("".padEnd(level * 2, ' '))19            append(property.name.padEnd(maxNameLength, ' '))20            append("  =  ")21            val propertyValue = property.getter.call(a)22            when {23               propertyValue == null -> append(NullPrint.print(null, 0).value)24               propertyValue::class.isData -> append(DataClassPrintJvm().print(propertyValue, level + 1).value)25               else -> append(property.getter.call(a).print(level + 1).value)26            }27         }28         append(System.lineSeparator())29         append("".padEnd(level * 2, ' '))30         append(")")31      }32      return if (level > 0) {33         Printed(str.trim())34      } else {35         Printed(str)36      }37   }38}...

Using AI Code Generation

1 data class   Person ( val  name :   String ,   val  age :   Int ) 2 val  person  =   Person ( "John" ,   30 ) 3 println ( person ) 4 data   class   Person ( val  name :   String ,   val  age :   Int ) 5 val  person  =   Person ( "John" ,   30 ) 6 println ( person ) 7 data   class   Person ( val  name :   String ,   val  age :   Int ) 8 val  person  =   Person ( "John" ,   30 ) 9 println ( person ) 10 data   class   Person ( val  name :   String ,   val  age :   Int ) 11 val  person  =   Person ( "John" ,   30 ) 12 println ( person ) 13 data   class   Person ( val  name :   String ,   val  age :   Int ) 14 val  person  =   Person ( "John" ,   30 ) 15 println ( person ) 16 data   class   Person ( val  name :   String ,   val  age :   Int ) 17 val  person  =   Person ( "John" ,   30 ) 18 println ( person ) 19 data   class   Person ( val  name :   String ,   val  age :   Int ) 20 val  person  =   Person ( "

Using AI Code Generation

1val print = DataClassPrintJvm()2print.print(dataClassInstance)3print.print(dataClassInstance, "The data class instance is: ")4val print = DataClassPrintJdk8()5print.print(dataClassInstance)6print.print(dataClassInstance, "The data class instance is: ")7val print = DataClassPrintGson()8print.print(dataClassInstance)9print.print(dataClassInstance, "The data class instance is: ")10val print = DataClassPrintJackson()11print.print(dataClassInstance)12print.print(dataClassInstance, "The data class instance is: ")13val print = DataClassPrintKotlinx()14print.print(dataClassInstance)15print.print(dataClassInstance, "The data class instance is: ")16val print = DataClassPrintMoshi()17print.print(dataClassInstance)18print.print(dataClassInstance, "The data class instance is: ")19val print = DataClassPrintMoshiKotlin()20print.print(dataClassInstance)21print.print(dataClassInstance, "The data class instance is: ")22val print = DataClassPrintProtostuff()23print.print(dataClassInstance)24print.print(dataClassInstance, "The data class instance is: ")25val print = DataClassPrintProtostuffJson()26print.print(dataClassInstance)27print.print(dataClassInstance, "The data class instance is: ")28val print = DataClassPrintProtoStuff()

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