test: binary string

Author: iseki0

src/commonTest/kotlin/space/iseki/bencoding/BinaryStringTest.kt

@@ -0,0 +1,59 @@
+package space.iseki.bencoding
+
+import kotlinx.serialization.Serializable
+import kotlinx.serialization.decodeFromByteArray
+import kotlin.io.encoding.Base64
+import kotlin.io.encoding.ExperimentalEncodingApi
+import kotlin.test.Test
+import kotlin.test.assertEquals
+
+class BinaryStringTest {
+    @Serializable
+    data class A(
+        @BinaryString val a: String,
+    )
+
+    @Serializable
+    data class B(
+        @BinaryString(BinaryStringStrategy.ISO88591) val a: String,
+    )
+
+    @Serializable
+    data class C(
+        @BinaryString(BinaryStringStrategy.Base64) val a: String,
+    )
+
+    @OptIn(ExperimentalEncodingApi::class)
+    companion object {
+        private val str = "\u0000\u0001\u0002"
+        private val data = "d1:a3:${str}e".encodeToByteArray()
+
+        init {
+            check(data.size == 10)
+        }
+
+        private val binaryA = A(str)
+        private val base64A = A(Base64.encode(str.encodeToByteArray()))
+        private val binaryB = B(str)
+        private val base64C = C(base64A.a)
+
+        init {
+            check(base64A.a.length == 4)
+        }
+    }
+
+    @Test
+    fun testDefault() {
+        assertEquals(binaryA, Bencode.decodeFromByteArray<A>(data))
+        assertEquals(
+            base64A,
+            Bencode { binaryStringStrategy = BinaryStringStrategy.Base64 }.decodeFromByteArray<A>(data)
+        )
+    }
+
+    @Test
+    fun testNonDefault(){
+        assertEquals(binaryB, Bencode.decodeFromByteArray<B>(data))
+        assertEquals(base64C, Bencode.decodeFromByteArray<C>(data))
+    }
+}