Move additional files/tests to BitFoundation (#1102)

localPackages/BitFoundation/Tests/BitFoundationTests/BinaryProtocolPaddingTests.swift

@@ -0,0 +1,33 @@
+//
+// BinaryProtocolPaddingTests.swift
+// bitchatTests
+//
+// This is free and unencumbered software released into the public domain.
+//
+
+import Testing
+@testable import BitFoundation
+
+struct BinaryProtocolPaddingTests {
+    @Test func padded_vs_unpadded_length() throws {
+        // Use helper to create a small test packet
+        let packet = TestHelpers.createTestPacket()
+        let padded = try #require(BinaryProtocol.encode(packet, padding: true), "encode padded")
+        let unpadded = try #require(BinaryProtocol.encode(packet, padding: false), "encode unpadded")
+        #expect(padded.count >= unpadded.count, "Padded frame should be >= unpadded")
+    }
+
+    @Test func decode_padded_and_unpadded_round_trip() throws {
+        let packet = TestHelpers.createTestPacket()
+
+        let padded = try #require(BinaryProtocol.encode(packet, padding: true), "encode padded")
+        let dec1 = try #require(BinaryProtocol.decode(padded), "decode padded")
+        #expect(dec1.type == packet.type)
+        #expect(dec1.payload == packet.payload)
+
+        let unpadded = try #require(BinaryProtocol.encode(packet, padding: false), "encode unpadded")
+        let dec2 = try #require(BinaryProtocol.decode(unpadded), "decode unpadded")
+        #expect(dec2.type == packet.type)
+        #expect(dec2.payload == packet.payload)
+    }
+}