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added (de)serializers for Kotlin unsigned number types
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Eric Fenderbosch
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Feb 26, 2021
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26 changes: 26 additions & 0 deletions
26
src/main/kotlin/com/fasterxml/jackson/module/kotlin/UnsignedNumbers.kt
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,26 @@ | ||
| @file:Suppress("EXPERIMENTAL_API_USAGE") | ||
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| package com.fasterxml.jackson.module.kotlin | ||
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| import java.math.BigInteger | ||
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| fun Short.asUByte() = when { | ||
| this >= 0 && this <= UByte.MAX_VALUE.toShort() -> this.toUByte() | ||
| else -> null | ||
| } | ||
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| fun Int.asUShort() = when { | ||
| this >= 0 && this <= UShort.MAX_VALUE.toInt() -> this.toUShort() | ||
| else -> null | ||
| } | ||
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| fun Long.asUInt() = when { | ||
| this >= 0 && this <= UInt.MAX_VALUE.toLong() -> this.toUInt() | ||
| else -> null | ||
| } | ||
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| private val uLongMaxValue = BigInteger(ULong.MAX_VALUE.toString()) | ||
| fun BigInteger.asULong() = when { | ||
| this >= BigInteger.ZERO && this <= uLongMaxValue -> this.toLong().toULong() | ||
| else -> null | ||
| } |
96 changes: 96 additions & 0 deletions
96
src/test/kotlin/com/fasterxml/jackson/module/kotlin/test/UnsignedNumbersTests.kt
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,96 @@ | ||
| @file:Suppress("EXPERIMENTAL_API_USAGE", "EXPERIMENTAL_UNSIGNED_LITERALS") | ||
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| package com.fasterxml.jackson.module.kotlin.test | ||
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| import com.fasterxml.jackson.core.exc.InputCoercionException | ||
| import com.fasterxml.jackson.databind.ObjectMapper | ||
| import com.fasterxml.jackson.databind.SerializationFeature | ||
| import com.fasterxml.jackson.module.kotlin.jacksonObjectMapper | ||
| import com.fasterxml.jackson.module.kotlin.readValue | ||
| import org.junit.Test | ||
| import java.math.BigInteger | ||
| import org.hamcrest.CoreMatchers.equalTo | ||
| import org.hamcrest.MatcherAssert.assertThat | ||
| import org.junit.Assert.assertThrows | ||
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| internal class UnsignedNumbersTests { | ||
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| val mapper: ObjectMapper = jacksonObjectMapper() | ||
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| @Test | ||
| fun `test UByte`() { | ||
| val json = mapper.writeValueAsString(UByte.MAX_VALUE) | ||
| val deserialized = mapper.readValue<UByte>(json) | ||
| assertThat(deserialized, equalTo(UByte.MAX_VALUE)) | ||
| } | ||
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| @Test | ||
| fun `test UByte overflow`() { | ||
| val json = mapper.writeValueAsString(UByte.MAX_VALUE + 1u) | ||
| assertThrows(InputCoercionException::class.java) { mapper.readValue<UByte>(json) } | ||
| } | ||
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| @Test | ||
| fun `test UByte underflow`() { | ||
| val json = mapper.writeValueAsString(-1) | ||
| assertThrows(InputCoercionException::class.java) { mapper.readValue<UByte>(json) } | ||
| } | ||
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| @Test | ||
| fun `test UShort`() { | ||
| val json = mapper.writeValueAsString(UShort.MAX_VALUE) | ||
| val deserialized = mapper.readValue<UShort>(json) | ||
| assertThat(deserialized, equalTo(UShort.MAX_VALUE)) | ||
| } | ||
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| @Test | ||
| fun `test UShort overflow`() { | ||
| val json = mapper.writeValueAsString(UShort.MAX_VALUE + 1u) | ||
| assertThrows(InputCoercionException::class.java) { mapper.readValue<UShort>(json) } | ||
| } | ||
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| @Test | ||
| fun `test UShort underflow`() { | ||
| val json = mapper.writeValueAsString(-1) | ||
| assertThrows(InputCoercionException::class.java) { mapper.readValue<UShort>(json) } | ||
| } | ||
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| @Test | ||
| fun `test UInt`() { | ||
| val json = mapper.writeValueAsString(UInt.MAX_VALUE) | ||
| val deserialized = mapper.readValue<UInt>(json) | ||
| assertThat(deserialized, equalTo(UInt.MAX_VALUE)) | ||
| } | ||
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| @Test | ||
| fun `test UInt overflow`() { | ||
| val json = mapper.writeValueAsString(UInt.MAX_VALUE.toULong() + 1u) | ||
| assertThrows(InputCoercionException::class.java) { mapper.readValue<UInt>(json) } | ||
| } | ||
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| @Test | ||
| fun `test UInt underflow`() { | ||
| val json = mapper.writeValueAsString(-1) | ||
| assertThrows(InputCoercionException::class.java) { mapper.readValue<UInt>(json) } | ||
| } | ||
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| @Test | ||
| fun `test ULong`() { | ||
| val json = mapper.writeValueAsString(ULong.MAX_VALUE) | ||
| val deserialized = mapper.readValue<ULong>(json) | ||
| assertThat(deserialized, equalTo(ULong.MAX_VALUE)) | ||
| } | ||
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| @Test | ||
| fun `test ULong overflow`() { | ||
| val value = BigInteger(ULong.MAX_VALUE.toString()) + BigInteger.ONE | ||
| val json = mapper.writeValueAsString(value) | ||
| assertThrows(InputCoercionException::class.java) { mapper.readValue<ULong>(json) } | ||
| } | ||
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| @Test | ||
| fun `test ULong underflow`() { | ||
| val json = mapper.writeValueAsString(-1) | ||
| assertThrows(InputCoercionException::class.java) { mapper.readValue<ULong>(json) } | ||
| } | ||
| } |