1 files changed, 54 insertions, 0 deletions
diff --git a/formats/json-tests/commonTest/src/kotlinx/serialization/features/ByteArraySerializerTest.kt b/formats/json-tests/commonTest/src/kotlinx/serialization/features/ByteArraySerializerTest.kt
new file mode 100644
index 00000000..aa1ad2d0
--- /dev/null
+++ b/formats/json-tests/commonTest/src/kotlinx/serialization/features/ByteArraySerializerTest.kt
@@ -0,0 +1,54 @@
+/*
+ * Copyright 2017-2019 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license.
+ */
+
+package kotlinx.serialization.features
+
+import kotlinx.serialization.*
+import kotlinx.serialization.builtins.*
+import kotlinx.serialization.json.Json
+import kotlinx.serialization.test.*
+import kotlin.test.*
+
+class ByteArraySerializerTest {
+
+    @Serializable
+    class ByteArrayCarrier(@Id(2) val data: ByteArray) {
+        override fun equals(other: Any?): Boolean {
+            if (this === other) return true
+            if (other == null || this::class != other::class) return false
+
+            other as ByteArrayCarrier
+
+            if (!data.contentEquals(other.data)) return false
+
+            return true
+        }
+
+        override fun hashCode(): Int {
+            return data.contentHashCode()
+        }
+
+        override fun toString(): String {
+            return "ByteArrayCarrier(data=${data.contentToString()})"
+        }
+    }
+
+    @Test
+    fun testByteArrayJson() {
+        val bytes = byteArrayOf(42, 43, 44, 45)
+        val s = Json.encodeToString(ByteArraySerializer(), bytes)
+        assertEquals(s, """[42,43,44,45]""")
+        val bytes2 = Json.decodeFromString(ByteArraySerializer(), s)
+        assertTrue(bytes.contentEquals(bytes2))
+    }
+
+    @Test
+    fun testWrappedByteArrayJson() {
+        val obj = ByteArrayCarrier(byteArrayOf(42, 100))
+        val s = Json.encodeToString(ByteArrayCarrier.serializer(), obj)
+        assertEquals("""{"data":[42,100]}""", s)
+        val obj2 = Json.decodeFromString(ByteArrayCarrier.serializer(), s)
+        assertEquals(obj, obj2)
+    }
+}