core-graphics: event: Add tests to CGEventTap

Author: AsafFisher

core-graphics/src/event.rs

@@ -782,3 +782,37 @@ extern {
     fn CGEventTapEnable(tap: CFMachPortRef, enable: bool);
 
 }
+
+#[cfg(test)]
+mod test {
+    use core_foundation::runloop::{kCFRunLoopCommonModes, CFRunLoop};
+
+    use super::{
+        CGEventTap, CGEventTapLocation, CGEventTapOptions, CGEventTapPlacement, CGEventType,
+    };
+
+    #[test]
+    fn test_event_tap() {
+        let current = CFRunLoop::get_current();
+        match CGEventTap::new(
+            CGEventTapLocation::HID,
+            CGEventTapPlacement::HeadInsertEventTap,
+            CGEventTapOptions::Default,
+            vec![CGEventType::MouseMoved],
+            |_a, _b, d| {
+                println!("{:?}", d.location());
+                None
+            },
+        ) {
+            Ok(tap) => unsafe {
+                let loop_source = tap
+                    .mach_port
+                    .create_runloop_source(0)
+                    .expect("Somethings is bad ");
+                current.add_source(&loop_source, kCFRunLoopCommonModes);
+                tap.enable();
+            },
+            Err(_) => (assert!(false)),
+        }
+    }
+}