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/*
* Copyright 2017-2019 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license.
*/
package kotlinx.serialization.json.serializers
import kotlinx.serialization.json.*
import kotlin.test.*
class JsonTreeTest : JsonTestBase() {
private fun parse(input: String): JsonElement = default.decodeFromString(JsonElementSerializer, input)
@Test
fun testParseWithoutExceptions() {
val input = """{"a": "foo", "b": 10, "c": ["foo", 100500, {"bar": "baz"}]}"""
parse(input)
}
@Test
fun testJsonLiteral() {
val v = JsonPrimitive("foo")
assertEquals(v, parse("\"foo\""))
}
@Test
fun testJsonObject() {
val input = """{"a": "foo", "b": 10, "c": true, "d": null}"""
val elem = parse(input)
assertTrue(elem is JsonObject)
assertEquals(setOf("a", "b", "c", "d"), elem.keys)
assertEquals(JsonPrimitive("foo"), elem["a"])
assertEquals(10, elem["b"]?.jsonPrimitive?.int)
assertEquals(true, elem["c"]?.jsonPrimitive?.boolean)
assertSame(elem.getValue("d") as JsonNull, JsonNull)
}
@Test
fun testJsonObjectWithArrays() {
val input = """{"a": "foo", "b": 10, "c": ["foo", 100500, {"bar": "baz"}]}"""
val elem = parse(input)
assertTrue(elem is JsonObject)
assertEquals(setOf("a", "b", "c"), elem.keys)
assertTrue(elem.getValue("c") is JsonArray)
val array = elem.getValue("c").jsonArray
assertEquals("foo", array.getOrNull(0)?.jsonPrimitive?.content)
assertEquals(100500, array.getOrNull(1)?.jsonPrimitive?.int)
assertTrue(array[2] is JsonObject)
val third = array[2].jsonObject
assertEquals("baz", third.getValue("bar").jsonPrimitive.content)
}
@Test
fun testSaveToJson() {
val input = """{"a":"foo","b":10,"c":true,"d":null,"e":["foo",100500,{"bar":"baz"}]}"""
val elem = parse(input)
val json = elem.toString()
assertEquals(input, json)
}
@Test
fun testEqualityTest() {
val input = """{"a": "foo", "b": 10}"""
val parsed = parse(input)
val parsed2 = parse(input)
val handCrafted = buildJsonObject { put("a", JsonPrimitive("foo")); put("b", JsonPrimitive(10)) }
assertEquals(parsed, parsed2)
assertEquals(parsed, handCrafted)
}
@Test
fun testInEqualityTest() {
val input = """{"a": "10", "b": 10}"""
val parsed = parse(input) as JsonObject
val handCrafted = buildJsonObject { put("a", JsonPrimitive("10")); put("b", JsonPrimitive(10)) }
assertEquals(parsed, handCrafted)
assertNotEquals(parsed["a"], parsed["b"])
assertNotEquals(parsed["a"], handCrafted["b"])
assertNotEquals(handCrafted["a"], parsed["b"])
assertNotEquals(handCrafted["a"], handCrafted["b"])
}
@Test
fun testExceptionalState() {
val tree =
JsonObject(mapOf("a" to JsonPrimitive(42), "b" to JsonArray(listOf(JsonNull)), "c" to JsonPrimitive(false)))
assertFailsWith<NoSuchElementException> { tree.getValue("no key").jsonObject }
assertFailsWith<IllegalArgumentException> { tree.getValue("a").jsonArray }
assertEquals(null, tree["no key"]?.jsonObject)
assertEquals(null, tree["a"] as? JsonArray)
val n = tree.getValue("b").jsonArray[0].jsonPrimitive
assertFailsWith<NumberFormatException> { n.int }
assertEquals(null, n.intOrNull)
assertFailsWith<IllegalStateException> { n.boolean }
assertEquals(null, n.booleanOrNull)
}
@Test
fun testThatJsonArraysCompareWithLists() {
val jsonArray: List<JsonElement> = JsonArray(listOf(JsonPrimitive(3), JsonPrimitive(4)))
val arrayList: List<JsonElement> = ArrayList(listOf(JsonPrimitive(3), JsonPrimitive(4)))
val otherArrayList: List<JsonElement> = ArrayList(listOf(JsonPrimitive(3), JsonPrimitive(5)))
assertEquals(jsonArray, arrayList)
assertEquals(arrayList, jsonArray)
assertEquals(jsonArray.hashCode(), arrayList.hashCode())
assertNotEquals(jsonArray, otherArrayList)
}
@Test
fun testThatJsonObjectsCompareWithMaps() {
val jsonObject: Map<String, JsonElement> = JsonObject(
mapOf(
"three" to JsonPrimitive(3),
"four" to JsonPrimitive(4)
)
)
val hashMap: Map<String, JsonElement> = HashMap(
mapOf(
"three" to JsonPrimitive(3),
"four" to JsonPrimitive(4)
)
)
val otherJsonObject: Map<String, JsonElement> = JsonObject(
mapOf(
"three" to JsonPrimitive(3),
"five" to JsonPrimitive(5)
)
)
val otherHashMap: Map<String, JsonElement> = HashMap(
mapOf(
"three" to JsonPrimitive(3),
"four" to JsonPrimitive(5)
)
)
assertEquals(jsonObject, hashMap)
assertEquals(hashMap, jsonObject)
assertEquals(jsonObject.hashCode(), hashMap.hashCode())
assertNotEquals(jsonObject, otherHashMap)
assertNotEquals(jsonObject, otherJsonObject)
}
}
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