openlp/tests/js/test_display.js

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JavaScript
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describe("The enumeration object", function () {
it("BackgroundType should exist", function () {
expect(BackgroundType).toBeDefined();
});
it("GradientType should exist", function () {
expect(GradientType).toBeDefined();
});
it("HorizontalAlign should exist", function () {
expect(HorizontalAlign).toBeDefined();
});
it("VerticalAlign should exist", function () {
expect(VerticalAlign).toBeDefined();
});
it("AudioState should exist", function () {
expect(AudioState).toBeDefined();
});
});
describe("The function", function () {
it("$() should return the right element", function () {
var div = document.createElement("div");
div.setAttribute("id", "dollar-test");
document.body.appendChild(div);
expect($("#dollar-test")[0]).toBe(div);
});
it("_buildLinearGradient() should build the correct string", function () {
var gradient = _buildLinearGradient("left top", "left bottom", "#000", "#fff");
expect(gradient).toBe("-webkit-gradient(linear, left top, left bottom, from(#000), to(#fff)) fixed");
});
it("_buildRadialGradient() should build the correct string", function () {
var gradient = _buildRadialGradient(10, "#000", "#fff");
expect(gradient).toBe("-webkit-gradient(radial, 10 50%, 100, 10 50%, 10, from(#000), to(#fff)) fixed");
});
it("_getStyle should return the correct style on an element", function () {
var div = document.createElement("div");
div.style.setProperty("width", "100px");
div.setAttribute("id", "style-test");
document.body.appendChild(div);
expect(_getStyle($("#style-test")[0], "width")).toBe("100px");
});
it("_nl2br should turn UNIX newlines into <br> tags", function () {
var text = "Amazing grace, how sweet the sound\nThat saved a wretch like me";
expect(_nl2br(text)).toEqual("Amazing grace, how sweet the sound<br>That saved a wretch like me");
});
it("_nl2br should turn Windows newlines into <br> tags", function () {
var text = "Amazing grace, how sweet the sound\r\nThat saved a wretch like me";
expect(_nl2br(text)).toEqual("Amazing grace, how sweet the sound<br>That saved a wretch like me");
});
it("_prepareText should turn verse text into a paragraph", function () {
var text = "Amazing grace, how sweet the sound\nThat saved a wretch like me";
expect(_prepareText(text)).toEqual("<p>Amazing grace, how sweet the sound<br>That saved a wretch like me</p>");
});
});
describe("The Display object", function () {
it("should start with a blank _slides object", function () {
expect(Display._slides).toEqual({});
});
it("should have the correct Reveal config", function () {
expect(Display._revealConfig).toEqual({
margin: 0.0,
minScale: 1.0,
maxScale: 1.0,
controls: false,
progress: false,
history: false,
overview: false,
center: false,
help: false,
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transition: "none",
backgroundTransition: "none",
viewDistance: 9999,
width: "100%",
height: "100%"
});
});
it("should have an init() method", function () {
expect(Display.init).toBeDefined();
});
it("should initialise Reveal when init is called", function () {
spyOn(Reveal, "initialize");
Display.init();
expect(Reveal.initialize).toHaveBeenCalled();
});
it("should have a reinit() method", function () {
expect(Display.reinit).toBeDefined();
});
it("should re-initialise Reveal when reinit is called", function () {
spyOn(Reveal, "reinitialize");
Display.reinit();
expect(Reveal.reinitialize).toHaveBeenCalled();
});
it("should have a setTransition() method", function () {
expect(Display.setTransition).toBeDefined();
});
it("should have a correctly functioning setTransition() method", function () {
spyOn(Reveal, "configure");
Display.setTransition("fade");
expect(Reveal.configure).toHaveBeenCalledWith({"transition": "fade"});
});
it("should have a correctly functioning clearSlides() method", function () {
expect(Display.clearSlides).toBeDefined();
document.body.innerHTML = "";
var slidesDiv = document.createElement("div");
slidesDiv.setAttribute("class", "slides");
slidesDiv.innerHTML = "<section><p></p></section>";
document.body.appendChild(slidesDiv);
Display.clearSlides();
expect($(".slides")[0].innerHTML).toEqual("");
expect(Display._slides).toEqual({});
});
it("should have a correct goToSlide() method", function () {
spyOn(Reveal, "slide");
spyOn(Display, "_slides");
Display._slides["v1"] = 0;
Display.goToSlide("v1");
expect(Reveal.slide).toHaveBeenCalledWith(0);
});
});
describe("Display.addTextSlide", function () {
beforeEach(function() {
document.body.innerHTML = "";
var slidesDiv = document.createElement("div");
slidesDiv.setAttribute("class", "slides");
document.body.appendChild(slidesDiv);
Display._slides = {};
});
it("should add a new slide", function () {
var verse = "v1", text = "Amazing grace,\nhow sweet the sound";
spyOn(Display, "reinit");
Display.addTextSlide(verse, text);
expect(Display._slides[verse]).toEqual(0);
expect($(".slides > section").length).toEqual(1);
expect($(".slides > section")[0].innerHTML).toEqual(_prepareText(text));
expect(Display.reinit).toHaveBeenCalled();
});
it("should add a new slide without calling reinit()", function () {
var verse = "v1", text = "Amazing grace,\nhow sweet the sound";
spyOn(Display, "reinit");
Display.addTextSlide(verse, text, false);
expect(Display._slides[verse]).toEqual(0);
expect($(".slides > section").length).toEqual(1);
expect($(".slides > section")[0].innerHTML).toEqual(_prepareText(text));
expect(Display.reinit).not.toHaveBeenCalled();
});
it("should update an existing slide", function () {
var verse = "v1", text = "Amazing grace, how sweet the sound\nThat saved a wretch like me";
Display.addTextSlide(verse, "Amazing grace,\nhow sweet the sound", false);
spyOn(Display, "reinit");
Display.addTextSlide(verse, text, true);
expect(Display._slides[verse]).toEqual(0);
expect($(".slides > section").length).toEqual(1);
expect($(".slides > section")[0].innerHTML).toEqual(_prepareText(text));
expect(Display.reinit).toHaveBeenCalled();
});
});
describe("Display.setTextSlides", function () {
beforeEach(function() {
document.body.innerHTML = "";
var slidesDiv = document.createElement("div");
slidesDiv.setAttribute("class", "slides");
document.body.appendChild(slidesDiv);
var background = document.createElement("div");
background.setAttribute("id", "global-background");
document.body.appendChild(background);
var footer = document.createElement("div");
footer.setAttribute("class", "footer");
document.body.appendChild(footer);
Display._slides = {};
});
it("should add a list of slides", function () {
var slides = [
{
"verse": "v1",
"text": "Amazing grace, how sweet the sound\nThat saved a wretch like me\n" +
"I once was lost, but now I'm found\nWas blind but now I see"
},
{
"verse": "v2",
"text": "'twas Grace that taught, my heart to fear\nAnd grace, my fears relieved.\n" +
"How precious did that grace appear,\nthe hour I first believed."
}
];
spyOn(Display, "clearSlides");
spyOn(Display, "reinit");
spyOn(Reveal, "slide");
Display.setTextSlides(slides);
expect(Display.clearSlides).toHaveBeenCalledTimes(1);
expect(Display._slides["v1"]).toEqual(0);
expect(Display._slides["v2"]).toEqual(1);
expect($(".slides > section").length).toEqual(2);
expect(Display.reinit).toHaveBeenCalledTimes(1);
expect(Reveal.slide).toHaveBeenCalledWith(0);
});
it("should correctly set outline width", function () {
const slides = [
{
"verse": "v1",
"text": "Amazing grace, how sweet the sound\nThat saved a wretch like me\n" +
"I once was lost, but now I'm found\nWas blind but now I see"
}
];
const theme = {
'font_main_color': 'yellow',
'font_main_outline': true,
'font_main_outline_size': 42,
'font_main_outline_color': 'red'
};
spyOn(Display, "reinit");
Display.setTextSlides(slides);
Display.setTheme(theme);
const slidesDiv = $(".slides")[0];
expect(slidesDiv.style['-webkit-text-stroke']).toEqual('42pt red');
expect(slidesDiv.style['padding-left']).toEqual('84pt');
expect(slidesDiv.style['-webkit-text-fill-color']).toEqual('yellow');
})
});
describe("Display.setImageSlides", function () {
beforeEach(function() {
document.body.innerHTML = "";
var slidesDiv = document.createElement("div");
slidesDiv.setAttribute("class", "slides");
document.body.appendChild(slidesDiv);
var backgroundDiv = document.createElement("div");
backgroundDiv.setAttribute("id", "global-background");
document.body.appendChild(backgroundDiv);
Display._slides = {};
});
it("should add a list of images", function () {
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var slides = [{"path": "file:///openlp1.jpg"}, {"path": "file:///openlp2.jpg"}];
spyOn(Display, "clearSlides");
spyOn(Display, "reinit");
Display.setImageSlides(slides);
expect(Display.clearSlides).toHaveBeenCalledTimes(1);
expect(Display._slides["0"]).toEqual(0);
expect(Display._slides["1"]).toEqual(1);
expect($(".slides > section").length).toEqual(2);
expect($(".slides > section > img").length).toEqual(2);
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expect($(".slides > section > img")[0].getAttribute("src")).toEqual("file:///openlp1.jpg")
expect($(".slides > section > img")[1].getAttribute("src")).toEqual("file:///openlp2.jpg")
expect(Display.reinit).toHaveBeenCalledTimes(1);
});
});
describe("Display.setVideo", function () {
beforeEach(function() {
document.body.innerHTML = "";
var slidesDiv = document.createElement("div");
slidesDiv.setAttribute("class", "slides");
document.body.appendChild(slidesDiv);
var backgroundDiv = document.createElement("div");
backgroundDiv.setAttribute("id", "global-background");
document.body.appendChild(backgroundDiv);
Display._slides = {};
});
it("should add a video to the page", function () {
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var video = {"path": "file:///video.mp4"};
spyOn(Display, "clearSlides");
spyOn(Display, "reinit");
Display.setVideo(video);
expect(Display.clearSlides).toHaveBeenCalledTimes(1);
expect($(".slides > section").length).toEqual(1);
expect($(".slides > section > video").length).toEqual(1);
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expect($(".slides > section > video")[0].src).toEqual("file:///video.mp4")
expect(Display.reinit).toHaveBeenCalledTimes(1);
});
});
describe("Display.playVideo", function () {
var playCalled = false,
mockVideo = {
play: function () {
playCalled = true;
}
};
beforeEach(function () {
spyOn(window, "$").and.returnValue([mockVideo]);
});
it("should play the video when called", function () {
Display.playVideo();
expect(playCalled).toEqual(true);
});
});
describe("Display.pauseVideo", function () {
var pauseCalled = false,
mockVideo = {
pause: function () {
pauseCalled = true;
}
};
beforeEach(function () {
spyOn(window, "$").and.returnValue([mockVideo]);
});
it("should pause the video when called", function () {
Display.pauseVideo();
expect(pauseCalled).toEqual(true);
});
});
describe("Display.stopVideo", function () {
var pauseCalled = false,
mockVideo = {
pause: function () {
pauseCalled = true;
},
currentTime: 10.0
};
beforeEach(function () {
spyOn(window, "$").and.returnValue([mockVideo]);
});
it("should play the video when called", function () {
Display.stopVideo();
expect(pauseCalled).toEqual(true);
expect(mockVideo.currentTime).toEqual(0.0);
});
});
describe("Display.seekVideo", function () {
var mockVideo = {
currentTime: 1.0
};
beforeEach(function () {
spyOn(window, "$").and.returnValue([mockVideo]);
});
it("should seek to the specified position within the video when called", function () {
Display.seekVideo(7.34);
expect(mockVideo.currentTime).toEqual(7.34);
});
});
describe("Display.setPlaybackRate", function () {
var mockVideo = {
playbackRate: 1.0
};
beforeEach(function () {
spyOn(window, "$").and.returnValue([mockVideo]);
});
it("should set the playback rate of the video when called", function () {
// Let's sound like chipmunks!
Display.setPlaybackRate(1.25);
expect(mockVideo.playbackRate).toEqual(1.25);
});
});
describe("Display.setVideoVolume", function () {
var mockVideo = {
volume: 1.0
};
beforeEach(function () {
spyOn(window, "$").and.returnValue([mockVideo]);
});
it("should set the correct volume of the video when called", function () {
// Make it quiet
Display.setVideoVolume(30);
expect(mockVideo.volume).toEqual(0.3);
});
});
describe("Display.toggleVideoMute", function () {
var mockVideo = {
muted: false
};
beforeEach(function () {
spyOn(window, "$").and.returnValue([mockVideo]);
});
it("should mute the video when called", function () {
mockVideo.muted = false;
Display.toggleVideoMute();
expect(mockVideo.muted).toEqual(true);
});
it("should unmute the video when called", function () {
mockVideo.muted = true;
Display.toggleVideoMute();
expect(mockVideo.muted).toEqual(false);
});
});
describe("AudioPlayer", function () {
var audioPlayer, audioElement;
beforeEach(function () {
audioElement = {
_eventListeners: {},
_playing: false,
_paused: false,
_stopped: false,
src: "",
addEventListener: function (eventType, listener) {
this._eventListeners[eventType] = this._eventListeners[eventType] || [];
this._eventListeners[eventType].push(listener);
},
play: function () {
this._playing = true;
this._paused = false;
this._stopped = false;
},
pause: function () {
this._playing = false;
this._paused = true;
this._stopped = false;
}
};
spyOn(document, "createElement").and.returnValue(audioElement);
audioPlayer = new AudioPlayer();
});
it("should create an object", function () {
expect(audioPlayer).toBeDefined();
expect(audioPlayer._audioElement).not.toBeNull();
expect(audioPlayer._eventListeners).toEqual({});
expect(audioPlayer._playlist).toEqual([]);
expect(audioPlayer._currentTrack).toEqual(null);
expect(audioPlayer._canRepeat).toEqual(false);
expect(audioPlayer._state).toEqual(AudioState.Stopped);
});
it("should call the correct method when _callListener is called", function () {
var testCalled = false;
function test(event) {
testCalled = true;
}
audioPlayer._eventListeners["test"] = [test];
audioPlayer._callListener({"type": "test"});
expect(testCalled).toEqual(true);
});
it("should log a warning when _callListener is called for an unknown event", function () {
spyOn(console, "warn");
audioPlayer._callListener({"type": "test"});
expect(console.warn).toHaveBeenCalledWith("Received unknown event \"test\", doing nothing.");
});
it("should add all the correct event listeners", function () {
expectedListeners = {
"ended": [audioPlayer.onEnded, audioPlayer._callListener],
"timeupdate": [audioPlayer._callListener],
"volumechange": [audioPlayer._callListener],
"durationchange": [audioPlayer._callListener],
"loadeddata": [audioPlayer._callListener]
};
expect(audioElement._eventListeners).toEqual(expectedListeners);
});
it("should add the correct event listener when calling addEventListener", function () {
function dummy () {};
var expectedListeners = {
"test": [dummy]
};
audioPlayer.addEventListener("test", dummy);
expect(audioPlayer._eventListeners).toEqual(expectedListeners);
});
it("should set call nextTrack when the onEnded listener is called", function () {
spyOn(audioPlayer, "nextTrack");
audioPlayer.onEnded({});
expect(audioPlayer.nextTrack).toHaveBeenCalled();
});
it("should set the _canRepeat property when calling setCanRepeat", function () {
audioPlayer.setCanRepeat(true);
expect(audioPlayer._canRepeat).toEqual(true);
});
it("should clear the playlist when clearTracks is called", function () {
audioPlayer._playlist = ["one", "two", "three"];
audioPlayer.clearTracks();
expect(audioPlayer._playlist).toEqual([]);
});
it("should add a track to the playlist when addTrack is called", function () {
audioPlayer._playlist = [];
audioPlayer.addTrack("one");
expect(audioPlayer._playlist).toEqual(["one"]);
});
it("should move to the first track when canRepeat is true and nextTrack is called", function () {
spyOn(audioPlayer, "play");
audioPlayer.addTrack("one");
audioPlayer.addTrack("two");
audioPlayer.setCanRepeat(true);
audioPlayer._currentTrack = "two";
audioPlayer.nextTrack();
expect(audioPlayer.play).toHaveBeenCalledWith("one");
});
it("should move to the next track when nextTrack is called", function () {
spyOn(audioPlayer, "play");
audioPlayer.addTrack("one");
audioPlayer.addTrack("two");
audioPlayer._currentTrack = "one";
audioPlayer.nextTrack();
expect(audioPlayer.play).toHaveBeenCalledWith("two");
});
it("should stop when canRepeat is false and nextTrack is called on the last track in the list", function () {
spyOn(audioPlayer, "play");
spyOn(audioPlayer, "stop");
audioPlayer.addTrack("one");
audioPlayer.addTrack("two");
audioPlayer.setCanRepeat(false);
audioPlayer._currentTrack = "two";
audioPlayer.nextTrack();
expect(audioPlayer.play).not.toHaveBeenCalled();
expect(audioPlayer.stop).toHaveBeenCalled();
});
it("should play the first track when nextTrack is called when no songs are playing", function () {
spyOn(audioPlayer, "play");
audioPlayer.addTrack("one");
audioPlayer.nextTrack();
expect(audioPlayer.play).toHaveBeenCalledWith("one");
});
it("should log a warning when nextTrack is called when no songs are in the playlist", function () {
spyOn(console, "warn");
audioPlayer.nextTrack();
expect(console.warn).toHaveBeenCalledWith("No tracks in playlist, doing nothing.");
});
it("should play the track specified when play is called with a filename", function () {
audioPlayer.addTrack("one");
audioPlayer.play("one");
expect(audioPlayer._currentTrack).toEqual("one");
expect(audioElement._playing).toEqual(true);
expect(audioElement.src).toEqual("one");
expect(audioPlayer._state).toEqual(AudioState.Playing);
});
it("should continue playing when play is called without a filename and the player is paused", function () {
audioPlayer._state = AudioState.Paused;
audioPlayer.play();
expect(audioElement._playing).toEqual(true);
expect(audioPlayer._state).toEqual(AudioState.Playing);
});
it("should do nothing when play is called without a filename and the player is not paused", function () {
spyOn(console, "warn");
audioPlayer._state = AudioState.Playing;
audioPlayer.play();
expect(console.warn).toHaveBeenCalledWith("No track currently paused and no track specified, doing nothing.");
});
it("should pause the current track when pause is called", function () {
audioPlayer.pause();
expect(audioPlayer._state).toEqual(AudioState.Paused);
expect(audioElement._paused).toEqual(true);
});
it("should stop the current track when stop is called", function () {
audioPlayer.stop();
expect(audioPlayer._state).toEqual(AudioState.Stopped);
expect(audioElement._paused).toEqual(true);
expect(audioElement.src).toEqual("");
});
});