Added a test case that uses a custom KeyDeserializer

Author: k163377

src/test/kotlin/io/github/projectmapk/jackson/module/kogera/zIntegration/deser/valueClass/mapKey/keyDeserializer/SpecifiedForObjectMapperTest.kt

@@ -0,0 +1,70 @@
+package io.github.projectmapk.jackson.module.kogera.zIntegration.deser.valueClass.mapKey.keyDeserializer
+
+import com.fasterxml.jackson.databind.module.SimpleModule
+import io.github.projectmapk.jackson.module.kogera.jacksonObjectMapper
+import io.github.projectmapk.jackson.module.kogera.readValue
+import io.github.projectmapk.jackson.module.kogera.zIntegration.deser.valueClass.NonNullObject
+import io.github.projectmapk.jackson.module.kogera.zIntegration.deser.valueClass.NullableObject
+import io.github.projectmapk.jackson.module.kogera.zIntegration.deser.valueClass.Primitive
+import org.junit.jupiter.api.Assertions.assertEquals
+import org.junit.jupiter.api.Nested
+import org.junit.jupiter.api.Test
+
+class SpecifiedForObjectMapperTest {
+    companion object {
+        val mapper = jacksonObjectMapper().apply {
+            val module = SimpleModule().apply {
+                this.addKeyDeserializer(Primitive::class.java, Primitive.KeyDeserializer())
+                this.addKeyDeserializer(NonNullObject::class.java, NonNullObject.KeyDeserializer())
+                this.addKeyDeserializer(NullableObject::class.java, NullableObject.KeyDeserializer())
+            }
+            this.registerModule(module)
+        }
+    }
+
+    @Nested
+    inner class DirectDeserialize {
+        @Test
+        fun primitive() {
+            val result = mapper.readValue<Map<Primitive, String?>>("""{"1":null}""")
+            assertEquals(mapOf(Primitive(101) to null), result)
+        }
+
+        @Test
+        fun nonNullObject() {
+            val result = mapper.readValue<Map<NonNullObject, String?>>("""{"foo":null}""")
+            assertEquals(mapOf(NonNullObject("foo-deser") to null), result)
+        }
+
+        @Test
+        fun nullableObject() {
+            val result = mapper.readValue<Map<NullableObject, String?>>("""{"bar":null}""")
+            assertEquals(mapOf(NullableObject("bar-deser") to null), result)
+        }
+    }
+
+    data class Dst(
+        val p: Map<Primitive, String?>,
+        val nn: Map<NonNullObject, String?>,
+        val n: Map<NullableObject, String?>
+    )
+
+    @Test
+    fun wrapped() {
+        val src = """
+            {
+              "p":{"1":null},
+              "nn":{"foo":null},
+              "n":{"bar":null}
+            }
+        """.trimIndent()
+        val result = mapper.readValue<Dst>(src)
+        val expected = Dst(
+            mapOf(Primitive(101) to null),
+            mapOf(NonNullObject("foo-deser") to null),
+            mapOf(NullableObject("bar-deser") to null)
+        )
+
+        assertEquals(expected, result)
+    }
+}

src/test/kotlin/io/github/projectmapk/jackson/module/kogera/zIntegration/deser/valueClass/mapKey/keyDeserializer/byAnnotation/SpecifiedForClassTest.kt

@@ -0,0 +1,37 @@
+package io.github.projectmapk.jackson.module.kogera.zIntegration.deser.valueClass.mapKey.keyDeserializer.byAnnotation
+
+import com.fasterxml.jackson.databind.DeserializationContext
+import com.fasterxml.jackson.databind.annotation.JsonDeserialize
+import io.github.projectmapk.jackson.module.kogera.defaultMapper
+import io.github.projectmapk.jackson.module.kogera.jacksonObjectMapper
+import io.github.projectmapk.jackson.module.kogera.readValue
+import org.junit.jupiter.api.Assertions.assertEquals
+import org.junit.jupiter.api.Test
+import com.fasterxml.jackson.databind.KeyDeserializer as JacksonKeyDeserializer
+
+class SpecifiedForClassTest {
+    @JsonDeserialize(keyUsing = Value.KeyDeserializer::class)
+    @JvmInline
+    value class Value(val v: Int) {
+        class KeyDeserializer : JacksonKeyDeserializer() {
+            override fun deserializeKey(key: String, ctxt: DeserializationContext) = Value(key.toInt() + 100)
+        }
+    }
+
+    @Test
+    fun directDeserTest() {
+        val result = defaultMapper.readValue<Map<Value, String?>>("""{"1":null}""")
+
+        assertEquals(mapOf(Value(101) to null), result)
+    }
+
+    data class Wrapper(val v: Map<Value, String?>)
+
+    @Test
+    fun paramDeserTest() {
+        val mapper = jacksonObjectMapper()
+        val result = mapper.readValue<Wrapper>("""{"v":{"1":null}}""")
+
+        assertEquals(Wrapper(mapOf(Value(101) to null)), result)
+    }
+}

src/test/kotlin/io/github/projectmapk/jackson/module/kogera/zIntegration/deser/valueClass/mapKey/keyDeserializer/byAnnotation/SpecifiedForPropertyTest.kt

@@ -0,0 +1,28 @@
+package io.github.projectmapk.jackson.module.kogera.zIntegration.deser.valueClass.mapKey.keyDeserializer.byAnnotation
+
+import com.fasterxml.jackson.databind.DeserializationContext
+import com.fasterxml.jackson.databind.annotation.JsonDeserialize
+import io.github.projectmapk.jackson.module.kogera.jacksonObjectMapper
+import io.github.projectmapk.jackson.module.kogera.readValue
+import org.junit.jupiter.api.Assertions.assertEquals
+import org.junit.jupiter.api.Test
+import com.fasterxml.jackson.databind.KeyDeserializer as JacksonKeyDeserializer
+
+class SpecifiedForPropertyTest {
+    @JvmInline
+    value class Value(val v: Int) {
+        class KeyDeserializer : JacksonKeyDeserializer() {
+            override fun deserializeKey(key: String, ctxt: DeserializationContext) = Value(key.toInt() + 100)
+        }
+    }
+
+    data class Wrapper(@JsonDeserialize(keyUsing = Value.KeyDeserializer::class) val v: Map<Value, String?>)
+
+    @Test
+    fun paramDeserTest() {
+        val mapper = jacksonObjectMapper()
+        val result = mapper.readValue<Wrapper>("""{"v":{"1":null}}""")
+
+        assertEquals(Wrapper(mapOf(Value(101) to null)), result)
+    }
+}