Add off for client events. Fixes #773

SocketIO-MacTests/SocketSideEffectTest.swift

@@ -85,13 +85,21 @@ class SocketSideEffectTest: XCTestCase {
 
     func testOffWithEvent() {
         socket.on("test") {data, ack in }
-        XCTAssertEqual(socket.testHandlers.count, 1)
         socket.on("test") {data, ack in }
         XCTAssertEqual(socket.testHandlers.count, 2)
         socket.off("test")
         XCTAssertEqual(socket.testHandlers.count, 0)
     }
 
+    func testOffClientEvent() {
+        socket.on(clientEvent: .connect) {data, ack in }
+        socket.on(clientEvent: .disconnect) {data, ack in }
+        XCTAssertEqual(socket.testHandlers.count, 2)
+        socket.off(clientEvent: .disconnect)
+        XCTAssertEqual(socket.testHandlers.count, 1)
+        XCTAssertTrue(socket.testHandlers.contains(where: { $0.event == "connect" }))
+    }
+
     func testOffWithId() {
         let handler = socket.on("test") {data, ack in }
         XCTAssertEqual(socket.testHandlers.count, 1)

Source/SocketIOClient.swift

@@ -439,6 +439,15 @@ open class SocketIOClient : NSObject, SocketIOClientSpec, SocketEngineClient, So
         }
     }
 
+    /// Removes handler(s) for a client event.
+    ///
+    /// If you wish to remove a client event handler, call the `off(id:)` with the UUID received from its `on` call.
+    ///
+    /// - parameter clientEvent: The event to remove handlers for.
+    open func off(clientEvent event: SocketClientEvent) {
+        off(event.rawValue)
+    }
+
     /// Removes handler(s) based on an event name.
     ///
     /// If you wish to remove a specific event, call the `off(id:)` with the UUID received from its `on` call.