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src/main/kotlin/io/toolisticon/testing/jgiven/format/VarargsFormatter.kt
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| package io.toolisticon.testing.jgiven.format | ||
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| import com.tngtech.jgiven.annotation.Format | ||
| import com.tngtech.jgiven.format.ArgumentFormatter | ||
| import com.tngtech.jgiven.format.PrintfFormatter | ||
| import kotlin.annotation.AnnotationRetention.RUNTIME | ||
| import kotlin.annotation.AnnotationTarget.* | ||
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| /** | ||
| * Varargs step parameters annotated with this annotation will be put into quotes (" ") in reports. | ||
| */ | ||
| @MustBeDocumented | ||
| @Format(value = VarargsFormatter::class, args = ["\"%s\""]) | ||
| @Target(FIELD, VALUE_PARAMETER, ANNOTATION_CLASS) | ||
| @Retention(RUNTIME) | ||
| annotation class VarargsQuoted | ||
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| /** | ||
| * Argument formatter for varargs delegating to [PrintfFormatter] | ||
| */ | ||
| class VarargsFormatter @JvmOverloads constructor(private val delimiter: String = ", ") : ArgumentFormatter<Any?> { | ||
| companion object { | ||
| fun anyToList(instance: Any?): List<Any?>? { | ||
| if (instance == null || !instance::class.java.isArray) { | ||
| return null | ||
| } | ||
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| // deal with the various primitive array (int[],...) wrappers in kotlin. | ||
| return when (instance) { | ||
| is IntArray -> instance.toList() | ||
| is ByteArray -> instance.toList() | ||
| is CharArray -> instance.toList() | ||
| is ShortArray -> instance.toList() | ||
| is LongArray -> instance.toList() | ||
| is DoubleArray -> instance.toList() | ||
| is FloatArray -> instance.toList() | ||
| is BooleanArray -> instance.toList() | ||
| else -> (instance as Array<*>).toList() | ||
| } | ||
| } | ||
| } | ||
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| private val formatter = PrintfFormatter() | ||
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| override fun format(argumentToFormat: Any?, vararg formatterArguments: String): String { | ||
| val argumentList = anyToList(argumentToFormat) | ||
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| return argumentList | ||
| ?.joinToString(separator = delimiter) { formatter.format(it, *formatterArguments) } | ||
| ?: formatter.format(argumentToFormat, *formatterArguments) | ||
| } | ||
| } |
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77
src/test/kotlin/io/toolisticon/testing/jgiven/format/VarargsFormatterTest.kt
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| package io.toolisticon.testing.jgiven.format | ||
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| import io.toolisticon.testing.jgiven.format.VarargsFormatter.Companion.anyToList | ||
| import org.assertj.core.api.Assertions.assertThat | ||
| import org.assertj.core.api.Assertions.assertThatThrownBy | ||
| import org.junit.jupiter.api.Nested | ||
| import org.junit.jupiter.api.Test | ||
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| internal class VarargsFormatterTest { | ||
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| private var formatter: VarargsFormatter = VarargsFormatter() | ||
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| @Test | ||
| fun `format a single value`() { | ||
| assertThat(formatter.format("value", "\"%s\"")).isEqualTo("\"value\"") | ||
| } | ||
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| @Test | ||
| fun `format single array values`() { | ||
| val varargs = arrayOf("value") | ||
| assertThat(formatter.format(varargs, "\"%s\"")).isEqualTo("\"value\"") | ||
| } | ||
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| @Test | ||
| fun `format multiple array values`() { | ||
| val varargs = arrayOf<Any>("value1", 1L) | ||
| assertThat(formatter.format(varargs, "\"%s\"")).isEqualTo("\"value1\", \"1\"") | ||
| } | ||
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| @Test | ||
| fun `fail without formatterArguments`() { | ||
| val varargs = arrayOf("value") | ||
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| assertThatThrownBy { formatter.format(varargs) } | ||
| .isInstanceOf(ArrayIndexOutOfBoundsException::class.java) | ||
| } | ||
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| @Test | ||
| fun `format null value`() { | ||
| val varargs: Array<String>? = null | ||
| assertThat(formatter.format(varargs, "\"%s\"")).isEqualTo("\"null\"") | ||
| } | ||
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| @Nested | ||
| inner class AnyToList { | ||
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| @Test | ||
| fun `null to null`() { | ||
| assertThat(anyToList(null)).isNull() | ||
| } | ||
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| @Test | ||
| fun `non-array to null`() { | ||
| assertThat(anyToList("")).isNull() | ||
| } | ||
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| @Test | ||
| fun `int to list`() { | ||
| val list: List<Any?> = requireNotNull(anyToList(varargInt(1, 2, 3))) | ||
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| assertThat(list).containsExactly(1, 2, 3) | ||
| } | ||
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| @Test | ||
| fun `boolean to list`() { | ||
| val list = requireNotNull(anyToList(varargBoolean(true, false, null))) | ||
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| assertThat(list).containsExactly(true, false, null) | ||
| } | ||
| } | ||
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| private fun varargInt(vararg v: Int): Any? = v as Any? | ||
| private fun varargBoolean(vararg v: Boolean?): Any? = v as Any? | ||
| } |