From 9ede9acdcaf50ee9c9d0a99b3d034cc64f9a32ca Mon Sep 17 00:00:00 2001
From: Kitson Kelly <me@kitsonkelly.com>
Date: Wed, 12 Apr 2017 17:41:49 +0100
Subject: [PATCH 1/2] Allow target to be mocked in sendEvent

---
 src/support/sendEvent.ts        |  8 ++++++++
 tests/unit/support/sendEvent.ts | 24 ++++++++++++++++++++++++
 2 files changed, 32 insertions(+)

diff --git a/src/support/sendEvent.ts b/src/support/sendEvent.ts
index 752b497..8017241 100644
--- a/src/support/sendEvent.ts
+++ b/src/support/sendEvent.ts
@@ -133,6 +133,14 @@ export default function sendEvent<I extends EventInit>(target: Element, type: st
 		(event as CustomEvent).initCustomEvent(type, bubbles!, cancelable!, {});
 	}
 	try {
+		if ('target' in initProps) {
+			Object.defineProperty(event, 'target', {
+				value: (<any> initProps).target,
+				writable: false,
+				enumerable: true,
+				configurable: true
+			});
+		}
 		deepAssign(event, initProps);
 	}
 	catch (e) { /* swallowing assignment errors when trying to overwrite native event properties */ }
diff --git a/tests/unit/support/sendEvent.ts b/tests/unit/support/sendEvent.ts
index e89ad42..4c0266d 100644
--- a/tests/unit/support/sendEvent.ts
+++ b/tests/unit/support/sendEvent.ts
@@ -57,6 +57,30 @@ registerSuite({
 		});
 	},
 
+	'mock target'() {
+		const target = document.createElement('div');
+		document.body.appendChild(target);
+
+		const mockTarget = {} as HTMLDivElement;
+		let called = false;
+
+		function listener(evt: CustomEvent) {
+			assert.strictEqual(evt.target, mockTarget, 'Target of event should be mock target');
+			called = true;
+		}
+
+		target.addEventListener('click', listener);
+
+		sendEvent(target, 'click', {
+			eventInit: {
+				target: mockTarget
+			}
+		});
+		assert.isTrue(called, 'listener should have been called');
+
+		document.body.removeChild(target);
+	},
+
 	'MouseEvents'() {
 		const target = document.createElement('button');
 		document.body.appendChild(target);

From 8ddbbfb3bc8930589cf2e75400e207c2ecb7b072 Mon Sep 17 00:00:00 2001
From: Kitson Kelly <me@kitsonkelly.com>
Date: Wed, 12 Apr 2017 18:11:55 +0100
Subject: [PATCH 2/2] Attempt to fix setting mock target on IE11

---
 src/support/sendEvent.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/support/sendEvent.ts b/src/support/sendEvent.ts
index 8017241..62aea95 100644
--- a/src/support/sendEvent.ts
+++ b/src/support/sendEvent.ts
@@ -138,7 +138,7 @@ export default function sendEvent<I extends EventInit>(target: Element, type: st
 				value: (<any> initProps).target,
 				writable: false,
 				enumerable: true,
-				configurable: true
+				configurable: false
 			});
 		}
 		deepAssign(event, initProps);