Updated unit tests (#211)

Author: orchetect

Tests/MIDIKitCoreTests/Events/MIDIEvent/Channel Voice/Channel Voice Tests.swift

@@ -0,0 +1,43 @@
+//
+//  Channel Voice Tests.swift
+//  MIDIKit • https://github.com/orchetect/MIDIKit
+//  © 2021-2023 Steffan Andrews • Licensed under MIT License
+//
+
+#if shouldTestCurrentPlatform
+
+@testable import MIDIKitCore
+import XCTest
+
+final class MIDIEvent_ChannelVoiceTests_Tests: XCTestCase {
+    // MARK: - Channel Voice Event encoding
+    
+    func testProgramChange_RawBytes_MIDI1_0() {
+        XCTAssertEqual(
+            MIDIEvent.programChange(program: 0x64, bank: .noBankSelect, channel: 10, group: 0).midi1RawBytes(),
+            [0xCA, 0x64]
+        )
+        
+        XCTAssertEqual(
+            MIDIEvent.programChange(program: 0x64, bank: .bankSelect(msb: 0x10, lsb: 0x00), channel: 10, group: 0).midi1RawBytes(),
+            [
+                0xBA, 0x00, 0x10, // Bank Select MSB
+                0xBA, 0x20, 0x00, // Bank Select LSB
+                0xCA, 0x64 // Program Change
+            ]
+        )
+        
+        XCTAssertEqual(
+            MIDIEvent.programChange(program: 0x64, bank: .bankSelect(msb: 0x10, lsb: 0x01), channel: 10, group: 0).midi1RawBytes(),
+            [
+                0xBA, 0x00, 0x10, // Bank Select MSB
+                0xBA, 0x20, 0x01, // Bank Select LSB
+                0xCA, 0x64 // Program Change
+            ]
+        )
+    }
+    
+    // TODO: Add unit tests for other Channel Voice events
+}
+
+#endif

Tests/MIDIKitIOTests/Parser/MIDI1Parser Tests.swift

@@ -57,8 +57,21 @@ final class MIDI1Parser_Tests: XCTestCase {
 
         // program change
         XCTAssertEqual(
-            parsedEvents(bytes: [0xCA, 0x20]),
-            [.programChange(program: 32, channel: 10, group: 0)]
+            parsedEvents(bytes: [0xCA, 0x40]),
+            [.programChange(program: 64, channel: 10, group: 0)]
+        )
+        // MIDI1Parser does not wait for trailing program change event in order to bundle them in a `.programChange` event.
+        // It is more idiomatic to MIDI 2.0 than MIDI 1.0.
+        // TODO: It could be implemented as an optional parser feature in future, similar to MIDI2Parser's RPN/NRPN bundling ability.
+        XCTAssertEqual(
+            parsedEvents(bytes: [0xBA, 0x00, 0x10,
+                                 0xBA, 0x20, 0x01,
+                                 0xCA, 0x40]),
+            [
+                .cc(0, value: .midi1(0x10), channel: 10, group: 0x0),
+                .cc(32, value: .midi1(0x01), channel: 10, group: 0x0),
+                .programChange(program: 64, /* bank: .bankSelect(msb: 0x10, lsb: 0x01), */ channel: 10, group: 0)
+            ]
         )
 
         // channel aftertouch