Sync playback rate

16 files changed, 436 insertions, 14 deletions

diff --git a/.vscode/tasks.json b/.vscode/tasks.json
index f68272e..0b315f6 100644
--- a/.vscode/tasks.json
+++ b/.vscode/tasks.json
@@ -16,6 +16,27 @@
 			"group": {
 				"kind": "build",
 				"isDefault": true
+			},
+			"presentation": {
+				"clear": true
+			}
+		},
+		{
+			"label": "Run tests",
+			"type": "hxml",
+			"file": "tests.hxml",
+			"problemMatcher": [
+				"$haxe-absolute",
+				"$haxe",
+				"$haxe-error",
+				"$haxe-trace"
+			],
+			"group": {
+				"kind": "test",
+				"isDefault": true
+			},
+			"presentation": {
+				"clear": true
 			}
 		}
 	]
diff --git a/build-server.hxml b/build-server.hxml
index 5f181aa..49def02 100644
--- a/build-server.hxml
+++ b/build-server.hxml
@@ -2,6 +2,7 @@
 -lib hxnodejs-ws

 # Client libs for completion

 -lib youtubeIFramePlayer:git:https://github.com/okawa-h/youtubeIFramePlayer-externs.git

+-lib utest

 -cp src

 --main server.Main

 -D analyzer-optimize

diff --git a/build/server.js b/build/server.js
index 5641bd5..5077240 100644
--- a/build/server.js
+++ b/build/server.js
@@ -1393,7 +1393,17 @@ server_Main.prototype = {
 				this.onMessage(client,{ type : "SkipVideo", skipVideo : { url : this.videoList[this.itemPos].url}});
 				return;
 			}
-			this.send(client,{ type : "GetTime", getTime : { time : this.videoTimer.getTime(), paused : this.videoTimer.isPaused()}});
+			var obj = { type : "GetTime", getTime : { time : this.videoTimer.getTime()}};
+			if(this.videoTimer.isPaused()) {
+				obj.getTime.paused = true;
+			}
+			if(this.videoTimer.getRate() != 1) {
+				if(!ClientTools.hasLeader(this.clients)) {
+					this.videoTimer.setRate(1);
+				}
+				obj.getTime.rate = this.videoTimer.getRate();
+			}
+			this.send(client,obj);
 			break;
 		case "Login":
 			var name = data.login.clientName;
@@ -1551,6 +1561,7 @@ server_Main.prototype = {
 				if(this.videoTimer.isPaused()) {
 					this.videoTimer.play();
 				}
+				this.videoTimer.setRate(1);
 				this.broadcast({ type : "Play", play : { time : this.videoTimer.getTime()}});
 			}
 			break;
@@ -1565,6 +1576,16 @@ server_Main.prototype = {
 			_$VideoList_VideoList_$Impl_$.setNextItem(this.videoList,pos,this.itemPos);
 			this.broadcast(data);
 			break;
+		case "SetRate":
+			if(this.videoList.length == 0) {
+				return;
+			}
+			if((client.group & 2) == 0) {
+				return;
+			}
+			this.videoTimer.setRate(data.setRate.rate);
+			this.broadcastExcept(client,data);
+			break;
 		case "SetTime":
 			if(this.videoList.length == 0) {
 				return;
@@ -1775,6 +1796,8 @@ server_Utils.shuffle = function(arr) {
 	}
 };
 var server_VideoTimer = function() {
+	this.rate = 1.0;
+	this.rateStartTime = 0.0;
 	this.pauseStartTime = 0.0;
 	this.startTime = 0.0;
 	this.isStarted = false;
@@ -1785,6 +1808,7 @@ server_VideoTimer.prototype = {
 		this.isStarted = true;
 		this.startTime = Date.now() / 1000;
 		this.pauseStartTime = 0;
+		this.rateStartTime = Date.now() / 1000;
 	}
 	,stop: function() {
 		this.isStarted = false;
@@ -1792,20 +1816,23 @@ server_VideoTimer.prototype = {
 		this.pauseStartTime = 0;
 	}
 	,pause: function() {
+		this.startTime += this.rateTime() - this.rateTime() * this.rate;
 		this.pauseStartTime = Date.now() / 1000;
+		this.rateStartTime = 0;
 	}
 	,play: function() {
 		if(!this.isStarted) {
 			this.start();
 		}
 		this.startTime += this.pauseTime();
+		this.rateStartTime = Date.now() / 1000;
 		this.pauseStartTime = 0;
 	}
 	,getTime: function() {
 		if(this.startTime == 0) {
 			return 0;
 		}
-		return Date.now() / 1000 - this.startTime - this.pauseTime();
+		return Date.now() / 1000 - this.startTime - this.rateTime() + this.rateTime() * this.rate - this.pauseTime();
 	}
 	,setTime: function(secs) {
 		this.startTime = Date.now() / 1000 - secs;
@@ -1820,12 +1847,28 @@ server_VideoTimer.prototype = {
 			return true;
 		}
 	}
+	,getRate: function() {
+		return this.rate;
+	}
+	,setRate: function(rate) {
+		if(!this.isPaused()) {
+			this.startTime += this.rateTime() - this.rateTime() * this.rate;
+			this.rateStartTime = Date.now() / 1000;
+		}
+		this.rate = rate;
+	}
 	,pauseTime: function() {
 		if(this.pauseStartTime == 0) {
 			return 0;
 		}
 		return Date.now() / 1000 - this.pauseStartTime;
 	}
+	,rateTime: function() {
+		if(this.rateStartTime == 0) {
+			return 0;
+		}
+		return Date.now() / 1000 - this.rateStartTime - this.pauseTime();
+	}
 };
 var sys_FileSystem = function() { };
 sys_FileSystem.__name__ = true;
diff --git a/res/client.js b/res/client.js
index 0611166..6519d6c 100644
--- a/res/client.js
+++ b/res/client.js
@@ -1091,6 +1091,15 @@ client_Main.prototype = {
 			this.onTimeGet.run();
 			break;
 		case "GetTime":
+			if(data.getTime.paused == null) {
+				data.getTime.paused = false;
+			}
+			if(data.getTime.rate == null) {
+				data.getTime.rate = 1;
+			}
+			if(this.player.getPlaybackRate() != data.getTime.rate) {
+				this.player.setPlaybackRate(data.getTime.rate);
+			}
 			var newTime = data.getTime.time;
 			var time = this.player.getTime();
 			if((this.personal.group & 1 << ClientGroup.Leader._hx_index) != 0) {
@@ -1175,6 +1184,12 @@ client_Main.prototype = {
 		case "SetNextItem":
 			this.player.setNextItem(data.setNextItem.pos);
 			break;
+		case "SetRate":
+			if((this.personal.group & 1 << ClientGroup.Leader._hx_index) != 0) {
+				return;
+			}
+			this.player.setPlaybackRate(data.setRate.rate);
+			break;
 		case "SetTime":
 			var newTime1 = data.setTime.time;
 			var time1 = this.player.getTime();
@@ -1543,6 +1558,7 @@ client_MobileView.init = function() {
 	};
 };
 var client_Player = function(main) {
+	this.skipSetRate = false;
 	this.skipSetTime = false;
 	this.isLoaded = false;
 	this.itemPos = 0;
@@ -1653,6 +1669,16 @@ client_Player.prototype = {
 		}
 		this.main.send({ type : "SetTime", setTime : { time : this.getTime()}});
 	}
+	,onRateChange: function() {
+		if(this.skipSetRate) {
+			this.skipSetRate = false;
+			return;
+		}
+		if((this.main.personal.group & 2) == 0) {
+			return;
+		}
+		this.main.send({ type : "SetRate", setRate : { rate : this.getPlaybackRate()}});
+	}
 	,addVideoItem: function(item,atEnd) {
 		var url = StringTools.htmlEscape(item.url,true);
 		var itemEl = this.nodeFromString("<li class=\"queue_entry pluid-0\" title=\"" + Lang.get("addedBy") + ": " + item.author + "\">\n\t\t\t\t<a class=\"qe_title\" href=\"" + url + "\" target=\"_blank\">" + StringTools.htmlEscape(item.title) + "</a>\n\t\t\t\t<span class=\"qe_time\">" + this.duration(item.duration) + "</span>\n\t\t\t\t<div class=\"qe_clear\"></div>\n\t\t\t\t<div class=\"btn-group\">\n\t\t\t\t\t<button class=\"btn btn-xs btn-default qbtn-play\">\n\t\t\t\t\t\t<span class=\"glyphicon glyphicon-play\"></span>" + Lang.get("play") + "\n\t\t\t\t\t</button>\n\t\t\t\t\t<button class=\"btn btn-xs btn-default qbtn-next\">\n\t\t\t\t\t\t<span class=\"glyphicon glyphicon-share-alt\"></span>" + Lang.get("setNext") + "\n\t\t\t\t\t</button>\n\t\t\t\t\t<button class=\"btn btn-xs btn-default qbtn-tmp\">\n\t\t\t\t\t\t<span class=\"glyphicon glyphicon-flag\"></span>\n\t\t\t\t\t</button>\n\t\t\t\t\t<button class=\"btn btn-xs btn-default qbtn-delete\">\n\t\t\t\t\t\t<span class=\"glyphicon glyphicon-trash\"></span>" + Lang.get("delete") + "\n\t\t\t\t\t</button>\n\t\t\t\t</div>\n\t\t\t</li>");
@@ -1833,6 +1859,25 @@ client_Player.prototype = {
 		this.skipSetTime = isLocal;
 		this.player.setTime(time);
 	}
+	,getPlaybackRate: function() {
+		if(this.player == null) {
+			return 1;
+		}
+		return this.player.getPlaybackRate();
+	}
+	,setPlaybackRate: function(rate,isLocal) {
+		if(isLocal == null) {
+			isLocal = true;
+		}
+		if(!this.main.isSyncActive) {
+			return;
+		}
+		if(this.player == null) {
+			return;
+		}
+		this.skipSetRate = isLocal;
+		this.player.setPlaybackRate(rate);
+	}
 };
 var client_Settings = function() { };
 client_Settings.__name__ = true;
@@ -1982,6 +2027,11 @@ client_players_Iframe.prototype = {
 	}
 	,setTime: function(time) {
 	}
+	,getPlaybackRate: function() {
+		return 1;
+	}
+	,setPlaybackRate: function(rate) {
+	}
 };
 var client_players_Raw = function(main,player) {
 	this.playAllowed = true;
@@ -2047,6 +2097,7 @@ client_players_Raw.prototype = {
 			return;
 		};
 		this.video.onpause = ($_=this.player,$bind($_,$_.onPause));
+		this.video.onratechange = ($_=this.player,$bind($_,$_.onRateChange));
 		this.playerEl.appendChild(this.video);
 	}
 	,removeVideo: function() {
@@ -2090,6 +2141,12 @@ client_players_Raw.prototype = {
 		}
 		this.video.currentTime = time;
 	}
+	,getPlaybackRate: function() {
+		return this.video.playbackRate;
+	}
+	,setPlaybackRate: function(rate) {
+		this.video.playbackRate = rate;
+	}
 };
 var client_players_Youtube = function(main,player) {
 	this.matchSeconds = new EReg("([0-9]+)S","");
@@ -2282,6 +2339,9 @@ client_players_Youtube.prototype = {
 				break;
 			}
 			return;
+		}, onPlaybackRateChange : function(e2) {
+			_gthis.player.onRateChange();
+			return;
 		}}});
 	}
 	,removeVideo: function() {
@@ -2317,6 +2377,12 @@ client_players_Youtube.prototype = {
 		}
 		this.youtube.seekTo(time,true);
 	}
+	,getPlaybackRate: function() {
+		return this.youtube.getPlaybackRate();
+	}
+	,setPlaybackRate: function(rate) {
+		this.youtube.setPlaybackRate(rate);
+	}
 };
 var haxe_Log = function() { };
 haxe_Log.__name__ = true;
diff --git a/src/Types.hx b/src/Types.hx
index 2501cc4..366b2ed 100644
--- a/src/Types.hx
+++ b/src/Types.hx
@@ -134,11 +134,15 @@ typedef WsEvent = {
 	},
 	?getTime:{
 		time:Float,
-		paused:Bool
+		?paused:Bool,
+		?rate:Float
 	},
 	?setTime:{
 		time:Float
 	},
+	?setRate:{
+		rate:Float
+	},
 	?rewind:{
 		time:Float
 	},
@@ -181,6 +185,7 @@ enum abstract WsEventType(String) {
 	var Play;
 	var GetTime;
 	var SetTime;
+	var SetRate;
 	var Rewind;
 	var SetLeader;
 	var PlayItem;
diff --git a/src/client/IPlayer.hx b/src/client/IPlayer.hx
index 4f29512..e414af5 100644
--- a/src/client/IPlayer.hx
+++ b/src/client/IPlayer.hx
@@ -11,4 +11,6 @@ interface IPlayer {
 	function pause():Void;
 	function getTime():Float;
 	function setTime(time:Float):Void;
+	function getPlaybackRate():Float;
+	function setPlaybackRate(rate:Float):Void;
 }
diff --git a/src/client/Main.hx b/src/client/Main.hx
index f65640a..780f005 100644
--- a/src/client/Main.hx
+++ b/src/client/Main.hx
@@ -366,6 +366,13 @@ class Main {
 				player.play();
 
 			case GetTime:
+				if (data.getTime.paused == null) data.getTime.paused = false;
+				if (data.getTime.rate == null) data.getTime.rate = 1;
+
+				if (player.getPlaybackRate() != data.getTime.rate) {
+					player.setPlaybackRate(data.getTime.rate);
+				}
+
 				final newTime = data.getTime.time;
 				final time = player.getTime();
 				if (isLeader()) {
@@ -386,6 +393,10 @@ class Main {
 				if (Math.abs(time - newTime) < synchThreshold) return;
 				player.setTime(newTime);
 
+			case SetRate:
+				if (isLeader()) return;
+				player.setPlaybackRate(data.setRate.rate);
+
 			case Rewind:
 				player.setTime(data.rewind.time);
 
diff --git a/src/client/Player.hx b/src/client/Player.hx
index 8e55b25..53a1168 100644
--- a/src/client/Player.hx
+++ b/src/client/Player.hx
@@ -21,6 +21,7 @@ class Player {
 	var itemPos = 0;
 	var isLoaded = false;
 	var skipSetTime = false;
+	var skipSetRate = false;
 
 	public function new(main:Main):Void {
 		this.main = main;
@@ -158,6 +159,19 @@ class Player {
 		});
 	}
 
+	public function onRateChange():Void {
+		if (skipSetRate) {
+			skipSetRate = false;
+			return;
+		}
+		if (!main.isLeader()) return;
+		main.send({
+			type: SetRate, setRate: {
+				rate: getPlaybackRate()
+			}
+		});
+	}
+
 	public function addVideoItem(item:VideoItem, atEnd:Bool):Void {
 		final url = item.url.htmlEscape(true);
 		final itemEl = nodeFromString(
@@ -322,4 +336,16 @@ class Player {
 		player.setTime(time);
 	}
 
+	public function getPlaybackRate():Float {
+		if (player == null) return 1;
+		return player.getPlaybackRate();
+	}
+
+	public function setPlaybackRate(rate:Float, isLocal = true):Void {
+		if (!main.isSyncActive) return;
+		if (player == null) return;
+		skipSetRate = isLocal;
+		player.setPlaybackRate(rate);
+	}
+
 }
diff --git a/src/client/players/Iframe.hx b/src/client/players/Iframe.hx
index f0a04c5..d79196b 100644
--- a/src/client/players/Iframe.hx
+++ b/src/client/players/Iframe.hx
@@ -59,4 +59,10 @@ class Iframe implements IPlayer {
 
 	public function setTime(time:Float):Void {}
 
+	public function getPlaybackRate():Float {
+		return 1;
+	}
+
+	public function setPlaybackRate(rate:Float):Void {}
+
 }
diff --git a/src/client/players/Raw.hx b/src/client/players/Raw.hx
index c7fa980..cd01a42 100644
--- a/src/client/players/Raw.hx
+++ b/src/client/players/Raw.hx
@@ -67,6 +67,7 @@ class Raw implements IPlayer {
 			player.onPlay();
 		}
 		video.onpause = player.onPause;
+		video.onratechange = player.onRateChange;
 		playerEl.appendChild(video);
 	}
 
@@ -102,4 +103,12 @@ class Raw implements IPlayer {
 		video.currentTime = time;
 	}
 
+	public function getPlaybackRate():Float {
+		return video.playbackRate;
+	}
+
+	public function setPlaybackRate(rate:Float):Void {
+		video.playbackRate = rate;
+	}
+
 }
diff --git a/src/client/players/Youtube.hx b/src/client/players/Youtube.hx
index f582ba7..eff407e 100644
--- a/src/client/players/Youtube.hx
+++ b/src/client/players/Youtube.hx
@@ -208,7 +208,10 @@ class Youtube implements IPlayer {
 							player.onSetTime();
 						case CUED:
 					}
-				}
+				},
+				onPlaybackRateChange: e -> {
+					player.onRateChange();
+				},
 			}
 		});
 	}
@@ -239,4 +242,12 @@ class Youtube implements IPlayer {
 		youtube.seekTo(time, true);
 	}
 
+	public function getPlaybackRate():Float {
+		return youtube.getPlaybackRate();
+	}
+
+	public function setPlaybackRate(rate:Float):Void {
+		youtube.setPlaybackRate(rate);
+	}
+
 }
diff --git a/src/server/Main.hx b/src/server/Main.hx
index f056ac6..5142f48 100644
--- a/src/server/Main.hx
+++ b/src/server/Main.hx
@@ -438,11 +438,17 @@ class Main {
 					});
 					return;
 				}
-				send(client, {
+				final obj:WsEvent = {
 					type: GetTime, getTime: {
-					time: videoTimer.getTime(),
-					paused: videoTimer.isPaused()
-				}});
+						time: videoTimer.getTime()
+					}
+				};
+				if (videoTimer.isPaused()) obj.getTime.paused = true;
+				if (videoTimer.getRate() != 1) {
+					if (!clients.hasLeader()) videoTimer.setRate(1);
+					obj.getTime.rate = videoTimer.getRate();
+				}
+				send(client, obj);
 
 			case SetTime:
 				if (videoList.length == 0) return;
@@ -450,6 +456,12 @@ class Main {
 				videoTimer.setTime(data.setTime.time);
 				broadcastExcept(client, data);
 
+			case SetRate:
+				if (videoList.length == 0) return;
+				if (!client.isLeader) return;
+				videoTimer.setRate(data.setRate.rate);
+				broadcastExcept(client, data);
+
 			case Rewind:
 				if (!checkPermission(client, RewindPerm)) return;
 				if (videoList.length == 0) return;
@@ -474,6 +486,7 @@ class Main {
 				if (videoList.length == 0) return;
 				if (!clients.hasLeader()) {
 					if (videoTimer.isPaused()) videoTimer.play();
+					videoTimer.setRate(1);
 					broadcast({
 						type: Play, play: {
 							time: videoTimer.getTime()
diff --git a/src/server/VideoTimer.hx b/src/server/VideoTimer.hx
index 4bc29db..508b97b 100644
--- a/src/server/VideoTimer.hx
+++ b/src/server/VideoTimer.hx
@@ -1,19 +1,22 @@
 package server;
 
-import haxe.Timer;
+import haxe.Timer.stamp;
 
 class VideoTimer {
 
 	public var isStarted(default, null) = false;
 	var startTime = 0.0;
 	var pauseStartTime = 0.0;
+	var rateStartTime = 0.0;
+	var rate = 1.0;
 
 	public function new() {}
 
 	public function start():Void {
 		isStarted = true;
-		startTime = Timer.stamp();
+		startTime = stamp();
 		pauseStartTime = 0;
+		rateStartTime = stamp();
 	}
 
 	public function stop():Void {
@@ -23,22 +26,26 @@ class VideoTimer {
 	}
 
 	public function pause():Void {
-		pauseStartTime = Timer.stamp();
+		startTime += rateTime() - rateTime() * this.rate;
+		pauseStartTime = stamp();
+		rateStartTime = 0;
 	}
 
 	public function play():Void {
 		if (!isStarted) start();
 		startTime += pauseTime();
+		rateStartTime = stamp();
 		pauseStartTime = 0;
 	}
 
 	public function getTime():Float {
 		if (startTime == 0) return 0;
-		return Timer.stamp() - startTime - pauseTime();
+		final time = stamp() - startTime;
+		return time - rateTime() + rateTime() * rate - pauseTime();
 	}
 
 	public function setTime(secs:Float):Void {
-		startTime = Timer.stamp() - secs;
+		startTime = stamp() - secs;
 		if (isPaused()) pause();
 	}
 
@@ -46,9 +53,26 @@ class VideoTimer {
 		return !isStarted || pauseStartTime != 0;
 	}
 
+	public function getRate():Float {
+		return rate;
+	}
+
+	public function setRate(rate:Float):Void {
+		if (!isPaused()) {
+			startTime += rateTime() - rateTime() * this.rate;
+			rateStartTime = stamp();
+		}
+		this.rate = rate;
+	}
+
 	function pauseTime():Float {
 		if (pauseStartTime == 0) return 0;
-		return Timer.stamp() - pauseStartTime;
+		return stamp() - pauseStartTime;
+	}
+
+	function rateTime():Float {
+		if (rateStartTime == 0) return 0;
+		return stamp() - rateStartTime - pauseTime();
 	}
 
 }
diff --git a/test/Main.hx b/test/Main.hx
new file mode 100644
index 0000000..d2ea286
--- /dev/null
+++ b/test/Main.hx
@@ -0,0 +1,15 @@
+package;
+
+import utest.Runner;
+import utest.ui.Report;
+
+class Main {
+
+	static function main() {
+		final runner = new Runner();
+		runner.addCases(test.tests);
+		Report.create(runner);
+		runner.run();
+	}
+
+}
diff --git a/test/tests/TestTimer.hx b/test/tests/TestTimer.hx
new file mode 100644
index 0000000..9403b75
--- /dev/null
+++ b/test/tests/TestTimer.hx
@@ -0,0 +1,163 @@
+package test.tests;
+
+import haxe.PosInfos;
+import utest.Assert;
+import haxe.Timer;
+import server.VideoTimer;
+
+class TestTimer extends utest.Test {
+
+	@:timeout(500)
+	function testMain(async:utest.Async) {
+		final timer = new VideoTimer();
+		timer.start();
+		Timer.delay(() -> {
+			almostEq(0.1, timer.getTime());
+			timer.setTime(1);
+			almostEq(1, timer.getTime());
+		}, 100);
+		Timer.delay(() -> {
+			almostEq(1.1, timer.getTime());
+			timer.setTime(0.1);
+			almostEq(0.1, timer.getTime());
+		}, 200);
+		Timer.delay(() -> {
+			almostEq(0.2, timer.getTime());
+			Assert.equals(false, timer.isPaused());
+			Assert.equals(true, timer.isStarted);
+			timer.stop();
+			Assert.equals(0, timer.getTime());
+			Assert.equals(true, timer.isPaused());
+			Assert.equals(false, timer.isStarted);
+			async.done();
+		}, 300);
+	}
+
+	@:timeout(500)
+	function testRate(async:utest.Async) {
+		final timer = new VideoTimer();
+		timer.start();
+		timer.setRate(2);
+		almostEq(0, timer.getTime());
+		Timer.delay(() -> {
+			almostEq(0.2, timer.getTime());
+			timer.setRate(1);
+			almostEq(0.2, timer.getTime());
+		}, 100);
+		Timer.delay(() -> {
+			almostEq(0.3, timer.getTime());
+			timer.setRate(2);
+			almostEq(0.3, timer.getTime());
+		}, 200);
+		Timer.delay(() -> {
+			almostEq(0.5, timer.getTime());
+			timer.pause();
+			almostEq(0.5, timer.getTime());
+			Assert.equals(true, timer.isPaused());
+			Assert.equals(true, timer.isStarted);
+		}, 300);
+		Timer.delay(() -> {
+			almostEq(0.5, timer.getTime());
+			Assert.equals(true, timer.isPaused());
+			Assert.equals(true, timer.isStarted);
+			async.done();
+		}, 400);
+	}
+
+	@:timeout(500)
+	function testRatePause(async:utest.Async) {
+		final timer = new VideoTimer();
+		timer.start();
+		timer.setRate(2);
+		timer.setTime(1);
+		almostEq(1, timer.getTime());
+		Timer.delay(() -> {
+			almostEq(1.2, timer.getTime());
+			timer.pause();
+			almostEq(1.2, timer.getTime());
+		}, 100);
+		Timer.delay(() -> {
+			almostEq(1.2, timer.getTime());
+			timer.play();
+			almostEq(1.2, timer.getTime());
+		}, 200);
+		Timer.delay(() -> {
+			almostEq(1.4, timer.getTime());
+			timer.pause();
+			almostEq(1.4, timer.getTime());
+			timer.setRate(3);
+		}, 300);
+		Timer.delay(() -> {
+			almostEq(1.4, timer.getTime());
+			timer.play();
+			almostEq(1.4, timer.getTime());
+			timer.setRate(1);
+			almostEq(1.4, timer.getTime());
+			async.done();
+		}, 400);
+	}
+
+	@:timeout(500)
+	function testPauseRate(async:utest.Async) {
+		final timer = new VideoTimer();
+		timer.start();
+		timer.setTime(100);
+		timer.pause();
+		Timer.delay(() -> {
+			almostEq(100, timer.getTime());
+			timer.setRate(2);
+			almostEq(100, timer.getTime());
+		}, 100);
+		Timer.delay(() -> {
+			almostEq(100, timer.getTime());
+			timer.setRate(1);
+			almostEq(100, timer.getTime());
+		}, 200);
+		Timer.delay(() -> {
+			almostEq(100, timer.getTime());
+			timer.setRate(2);
+			almostEq(100, timer.getTime());
+			timer.play();
+			almostEq(100, timer.getTime());
+		}, 300);
+		Timer.delay(() -> {
+			almostEq(100.2, timer.getTime());
+			timer.setRate(1);
+			almostEq(100.2, timer.getTime());
+			async.done();
+		}, 400);
+	}
+
+	@:timeout(500)
+	function testBigRate(async:utest.Async) {
+		final timer = new VideoTimer();
+		timer.start();
+		timer.setRate(3);
+		timer.setTime(10);
+		almostEq(10, timer.getTime());
+		Timer.delay(() -> {
+			almostEq(10.3, timer.getTime());
+		}, 100);
+		Timer.delay(() -> {
+			almostEq(10.6, timer.getTime());
+			timer.pause();
+			almostEq(10.6, timer.getTime());
+		}, 200);
+		Timer.delay(() -> {
+			almostEq(10.6, timer.getTime());
+			timer.play();
+			almostEq(10.6, timer.getTime());
+		}, 300);
+		Timer.delay(() -> {
+			almostEq(10.9, timer.getTime());
+			timer.setRate(1);
+			almostEq(10.9, timer.getTime());
+			async.done();
+		}, 400);
+	}
+
+	function almostEq(a:Float, b:Float, ?p:PosInfos):Void {
+		Assert.equals(Math.round(a * 10) / 10, Math.round(b * 10) / 10, p);
+	}
+
+}
diff --git a/tests.hxml b/tests.hxml
new file mode 100644
index 0000000..c95f9d8
--- /dev/null
+++ b/tests.hxml
@@ -0,0 +1,6 @@
+-cp src
+-cp test
+--main Main
+-lib utest
+--interp
+#-D test=9133