Implement recursive watching of a directory

Tests/InotifyIntegrationTests/RecursiveEventTests.swift

@@ -0,0 +1,23 @@
+import Foundation
+import Testing
+@testable import Inotify
+
+@Suite("Recursive Event Detection")
+struct RecursiveEventTests {
+	@Test func detectsFileCreationInSubfolder() async throws {
+		try await withTempDir { dir in
+			let subDirectory = "\(dir)/Subfolder"
+			let filepath = "\(subDirectory)/modify-target.txt"
+			try FileManager.default.createDirectory(atPath: subDirectory, withIntermediateDirectories: true)
+
+			let events = try await getEventsForTrigger(
+				in: dir,
+				mask: [.create],
+				recursive: true
+			) { _ in try createFile(at: "\(filepath)", contents: "hello") }
+
+			let createEvent = events.first { $0.mask.contains(.create) && $0.path.string == filepath }
+			#expect(createEvent != nil, "Expected CREATE for '\(filepath)', got: \(events)")
+		}
+	}
+}

Tests/InotifyIntegrationTests/Utilities/getEventsForTrigger.swift

@@ -3,10 +3,15 @@ import Inotify
 func getEventsForTrigger(
 	in dir: String,
 	mask: InotifyEventMask,
-	trigger: @escaping (String) async throws -> Void
+	recursive: Bool = false,
+	trigger: @escaping (String) async throws -> Void,
 ) async throws -> [InotifyEvent] {
 	let watcher = try Inotify()
-	try await watcher.addWatch(path: dir, mask: mask)
+	if recursive {
+		try await watcher.addRecursiveWatch(forDirectory: dir, mask: mask)
+	} else {
+		try await watcher.addWatch(path: dir, mask: mask)
+	}
 
 	let eventTask = Task {
 		var events: [InotifyEvent] = []