emitter tests

test/tests/Emitter.js

@@ -0,0 +1,94 @@
+/*
+ * Paper.js - The Swiss Army Knife of Vector Graphics Scripting.
+ * http://paperjs.org/
+ *
+ * Copyright (c) 2011 - 2014, Juerg Lehni & Jonathan Puckey
+ * http://scratchdisk.com/ & http://jonathanpuckey.com/
+ *
+ * Distributed under the MIT license. See LICENSE file for details.
+ *
+ * All rights reserved.
+ */
+
+module('Emitter');
+
+function emitterFactory() {
+	var emitter = {};
+	paper.Base.each(Emitter, function (f, k) {emitter[k] = f});
+	return emitter;
+}
+
+test('on()', function() {
+    var emitter = emitterFactory(),
+		installed;
+	// fake event type registration
+	emitter._eventTypes = {mouseMove: {install: function(){ installed = true;} } };
+	equals(function() {
+		return !emitter.responds('mouseMove');
+	}, true);
+    emitter.on('mouseMove', function() {});
+	equals(function() {
+        return emitter.responds('mouseMove')
+    }, true);
+	equals(function() { return installed; }, true);
+	// one time installation only
+	installed = false;
+	emitter.on('mouseMove', function() {});
+	equals(function() { return !installed; }, true);
+
+	emitter.on('customUnregistered', function() {});
+	equals(function() {
+        return emitter.responds('customUnregistered')
+    }, true);
+});
+
+test('off()', function() {
+	var emitter = emitterFactory(),
+		uninstalled, called = 0,
+		handler = function () {called++},
+		handler2 = function () {};
+	emitter._eventTypes = {mouseMove: {uninstall: function(){ uninstalled = true;} } };
+
+	emitter.on('mouseMove', handler);
+	emitter.on('mouseMove', handler2);
+	emitter.on('custom', handler);
+	emitter.emit('mouseMove');
+	equals(function() {	return called == 1; }, true);
+
+	emitter.off('mouseMove', handler2);
+	emitter.emit('mouseMove');
+	equals(function() {	return called == 2; }, true);
+	equals(function() { return !uninstalled }, true);
+
+	emitter.off('mouseMove', handler);
+	emitter.emit('mouseMove');
+	equals(function() {	return called == 2; }, true);
+	equals(function() { return uninstalled }, true);
+
+	called = 0;
+	emitter.emit('custom');
+	equals(function() {	return called == 1; }, true);
+	emitter.off('custom', handler);
+	emitter.emit('custom');
+	equals(function() {	return called == 1; }, true);
+});
+
+test('emit()', function() {
+	var emitter = emitterFactory(),
+		called,
+		handler = function (e) {called = e};
+	// fake event type registration
+	emitter._eventTypes = {mouseMove: {} };
+	emitter.on('mouseMove', handler);
+	emitter.on('custom', handler);
+
+	emitter.emit('mouseMove', 'mouseMove');
+	equals(function() {
+		return called == 'mouseMove';
+	}, true);
+
+	emitter.emit('custom', 'custom');
+	equals(function() {
+		return called == 'custom';
+	}, true);
+});

test/tests/load.js

@@ -17,6 +17,8 @@
 
 /*#*/ include('Color.js');
 
+/*#*/ include('Emitter.js');
+
 /*#*/ include('Project.js');
 
 /*#*/ include('Item.js');