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/*
* Copyright 2017-2021 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license.
*/
package kotlinx.serialization.json
import kotlinx.serialization.*
import kotlinx.serialization.json.internal.*
import kotlin.test.*
class JsonCoerceInputValuesTest : JsonTestBase() {
@Serializable
data class WithBoolean(val b: Boolean = false)
@Serializable
data class WithEnum(val e: SampleEnum = SampleEnum.OptionC)
@Serializable
data class MultipleValues(
val data: StringData,
val data2: IntData = IntData(0),
val i: Int = 42,
val e: SampleEnum = SampleEnum.OptionA,
val foo: String
)
val json = Json {
coerceInputValues = true
isLenient = true
}
private fun <T> doTest(inputs: List<String>, expected: T, serializer: KSerializer<T>) {
for (input in inputs) {
parametrizedTest(json) {
assertEquals(expected, decodeFromString(serializer, input), "Failed on input: $input")
}
}
}
@Test
fun testUseDefaultOnNonNullableBoolean() = doTest(
listOf(
"""{"b":false}""",
"""{"b":null}""",
"""{}""",
),
WithBoolean(),
WithBoolean.serializer()
)
@Test
fun testUseDefaultOnUnknownEnum() {
doTest(
listOf(
"""{"e":unknown_value}""",
"""{"e":"unknown_value"}""",
"""{"e":null}""",
"""{}""",
),
WithEnum(),
WithEnum.serializer()
)
assertFailsWith<JsonDecodingException> {
json.decodeFromString(WithEnum.serializer(), """{"e":{"x":"definitely not a valid enum value"}}""")
}
assertFailsWith<JsonDecodingException> { // test user still sees exception on missing quotes
Json(json) { isLenient = false }.decodeFromString(WithEnum.serializer(), """{"e":unknown_value}""")
}
}
@Test
fun testUseDefaultInMultipleCases() {
val testData = mapOf(
"""{"data":{"data":"foo"},"data2":null,"i":null,"e":null,"foo":"bar"}""" to MultipleValues(
StringData("foo"),
foo = "bar"
),
"""{"data":{"data":"foo"},"data2":{"intV":42},"i":null,"e":null,"foo":"bar"}""" to MultipleValues(
StringData(
"foo"
), IntData(42), foo = "bar"
),
"""{"data":{"data":"foo"},"data2":{"intV":42},"i":0,"e":"NoOption","foo":"bar"}""" to MultipleValues(
StringData("foo"),
IntData(42),
i = 0,
foo = "bar"
),
"""{"data":{"data":"foo"},"data2":{"intV":42},"i":0,"e":"OptionC","foo":"bar"}""" to MultipleValues(
StringData("foo"),
IntData(42),
i = 0,
e = SampleEnum.OptionC,
foo = "bar"
),
)
for ((input, expected) in testData) {
assertEquals(expected, json.decodeFromString(MultipleValues.serializer(), input), "Failed on input: $input")
}
}
}
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