Restructured library.

lib/pixi/test/lib/mocha.min.css

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+@charset "utf-8";body{margin:0}#mocha{font:20px/1.5 "Helvetica Neue",Helvetica,Arial,sans-serif;margin:60px 50px}#mocha li,#mocha ul{margin:0;padding:0}#mocha ul{list-style:none}#mocha h1,#mocha h2{margin:0}#mocha h1{margin-top:15px;font-size:1em;font-weight:200}#mocha h1 a{text-decoration:none;color:inherit}#mocha h1 a:hover{text-decoration:underline}#mocha .suite .suite h1{margin-top:0;font-size:.8em}#mocha .hidden{display:none}#mocha h2{font-size:12px;font-weight:400;cursor:pointer}#mocha .suite{margin-left:15px}#mocha .test{margin-left:15px;overflow:hidden}#mocha .test.pending:hover h2::after{content:'(pending)';font-family:arial,sans-serif}#mocha .test.pass.medium .duration{background:#c09853}#mocha .test.pass.slow .duration{background:#b94a48}#mocha .test.pass::before{content:'✓';font-size:12px;display:block;float:left;margin-right:5px;color:#00d6b2}#mocha .test.pass .duration{font-size:9px;margin-left:5px;padding:2px 5px;color:#fff;-webkit-box-shadow:inset 0 1px 1px rgba(0,0,0,.2);-moz-box-shadow:inset 0 1px 1px rgba(0,0,0,.2);box-shadow:inset 0 1px 1px rgba(0,0,0,.2);-webkit-border-radius:5px;-moz-border-radius:5px;-ms-border-radius:5px;-o-border-radius:5px;border-radius:5px}#mocha .test.pass.fast .duration{display:none}#mocha .test.pending{color:#0b97c4}#mocha .test.pending::before{content:'◦';color:#0b97c4}#mocha .test.fail{color:#c00}#mocha .test.fail pre{color:#000}#mocha .test.fail::before{content:'✖';font-size:12px;display:block;float:left;margin-right:5px;color:#c00}#mocha .test pre.error{color:#c00;max-height:300px;overflow:auto}#mocha .test .html-error{overflow:auto;color:#000;line-height:1.5;display:block;float:left;clear:left;font:12px/1.5 monaco,monospace;margin:5px;padding:15px;border:1px solid #eee;max-width:85%;max-width:-webkit-calc(100% - 42px);max-width:-moz-calc(100% - 42px);max-width:calc(100% - 42px);max-height:300px;word-wrap:break-word;border-bottom-color:#ddd;-webkit-box-shadow:0 1px 3px #eee;-moz-box-shadow:0 1px 3px #eee;box-shadow:0 1px 3px #eee;-webkit-border-radius:3px;-moz-border-radius:3px;border-radius:3px}#mocha .test .html-error pre.error{border:none;-webkit-border-radius:0;-moz-border-radius:0;border-radius:0;-webkit-box-shadow:0;-moz-box-shadow:0;box-shadow:0;padding:0;margin:0;margin-top:18px;max-height:none}#mocha .test pre{display:block;float:left;clear:left;font:12px/1.5 monaco,monospace;margin:5px;padding:15px;border:1px solid #eee;max-width:85%;max-width:-webkit-calc(100% - 42px);max-width:-moz-calc(100% - 42px);max-width:calc(100% - 42px);word-wrap:break-word;border-bottom-color:#ddd;-webkit-box-shadow:0 1px 3px #eee;-moz-box-shadow:0 1px 3px #eee;box-shadow:0 1px 3px #eee;-webkit-border-radius:3px;-moz-border-radius:3px;border-radius:3px}#mocha .test h2{position:relative}#mocha .test a.replay{position:absolute;top:3px;right:0;text-decoration:none;vertical-align:middle;display:block;width:15px;height:15px;line-height:15px;text-align:center;background:#eee;font-size:15px;-webkit-border-radius:15px;-moz-border-radius:15px;border-radius:15px;-webkit-transition:opacity .2s;-moz-transition:opacity .2s;-o-transition:opacity .2s;transition:opacity .2s;opacity:.3;color:#888}#mocha .test:hover a.replay{opacity:1}#mocha-report.pass .test.fail{display:none}#mocha-report.fail .test.pass{display:none}#mocha-report.pending .test.fail,#mocha-report.pending .test.pass{display:none}#mocha-report.pending .test.pass.pending{display:block}#mocha-error{color:#c00;font-size:1.5em;font-weight:100;letter-spacing:1px}#mocha-stats{position:fixed;top:15px;right:10px;font-size:12px;margin:0;color:#888;z-index:1}#mocha-stats .progress{float:right;padding-top:0;height:auto;-webkit-box-shadow:none;-moz-box-shadow:none;box-shadow:none;background-color:initial}#mocha-stats em{color:#000}#mocha-stats a{text-decoration:none;color:inherit}#mocha-stats a:hover{border-bottom:1px solid #eee}#mocha-stats li{display:inline-block;margin:0 5px;list-style:none;padding-top:11px}#mocha-stats canvas{width:40px;height:40px}#mocha code .comment{color:#ddd}#mocha code .init{color:#2f6fad}#mocha code .string{color:#5890ad}#mocha code .keyword{color:#8a6343}#mocha code .number{color:#2f6fad}@media screen and (max-device-width:480px){#mocha{margin:60px 0}#mocha #stats{position:absolute}}
+/*# sourceMappingURL=mocha.min.css.map */

lib/pixi/test/lib/mocha.min.css.map

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lib/pixi/test/test.css

@@ -0,0 +1,17 @@
+#mocha {
+    margin: 0;
+    font: inherit;
+}
+
+#mocha-stats {
+    position: absolute;
+    top: 70px;
+}
+
+#mocha-stats li.progress {
+    float: none !important;
+}
+
+#mocha-report a {
+    font-size: .9em;
+}

lib/pixi/test/tests/zoomInZoomOut.js

@@ -0,0 +1,102 @@
+/* globals chai, describe, it, beforeEach, testFrame, UITest */
+/* eslint no-console: ["error", { allow: ["log", "info", "error"] }] */
+
+/**
+ * Imports
+ */
+
+/**
+ * Setup
+ */
+
+/**
+ * Tests
+ */
+describe('Zoom in, zoom out', function () {
+
+    before('load index.html in testFrame', function(done) {
+        
+        if (window.testType !== 'all' && window.testType !== 'zoomInZoomOut') {
+            this.skip()
+        }
+
+        done()
+    })
+
+    it('should zoom in, zoom out, zoom in, zoom out, ... for one hour', function(done) {
+
+        this.timeout(1000 * 60 * 70)
+        this.slow(1000 * 60 * 61)
+
+        const app = testFrame.contentWindow.app3
+
+        const scale = app._deepZoomImage3.scatter.scale
+        const center = app._deepZoomImage3.scatter.center
+
+        function test() {
+
+            app._deepZoomImage3.scatter.scale = scale
+            app._deepZoomImage3.scatter.centerAt(center)
+
+            const fingers = fingersFromCenter(randomCenter(app.center))
+
+            new UITest()
+                .pinch(app.view, fingers.zoomIn, 1, {
+                    distance: 200,
+                    duration: 3
+                })
+                .pinch(app.view, fingers.zoomOut, 5, {
+                    distance: -58,
+                    duration: 2
+                })
+                .start()
+        }
+
+        setInterval(test, 9000)
+
+        test()
+    })
+})
+
+/**
+ * Utils
+ */
+function randomCenter(center) {
+
+    let x = Math.random() * 200
+    if (Math.random() < .5) {
+        x *= -1
+    }
+
+    let y = Math.random() * 200
+    if (Math.random() < .5) {
+        y *= -1
+    }
+
+    return {
+        x: center.x + x,
+        y: center.y + y
+    }
+}
+
+function fingersFromCenter(center) {
+
+    const finger1 = {
+        x: center.x - 3,
+        y: center.y
+    }
+    const finger2 = {
+        x: center.x + 3,
+        y: center.y
+    }
+    const finger3 = {
+        x: center.x - 30,
+        y: center.y
+    }
+    const finger4 = {
+        x: center.x + 30,
+        y: center.y
+    }
+
+    return {zoomIn: [finger1, finger2], zoomOut: [finger3, finger4]}
+}

lib/pixi/test/testsuite.js

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+/* globals mocha, chai, Bootstrap */
+/* eslint no-console: ["error", { allow: ["log", "info", "error"] }] */
+
+/**
+ * Mocha setup
+ */
+mocha.setup('bdd')
+
+/**
+ * Chai setup
+ */
+const assert = chai.assert
+
+/**
+ * List of tests
+ */
+let tests = [
+    '../test/tests/zoomInZoomOut.js'
+]
+
+/**
+ * 
+ */
+class UITestSuite {
+
+    async run(type = 'all') {
+        window.testType = type
+
+        this.reset()
+
+        for (let test of tests) {
+            await this.loadTest(test)
+        }
+
+        mocha.run()
+    }
+
+    reset() {
+        mocha.suite.suites = []
+        document.getElementById('mocha').innerHTML = ''
+    }
+
+    loadTest(url) {
+        return new Promise(resolve => {
+            Bootstrap.import(`${url}?_=${Date.now()}`, () => {
+                resolve()
+            })
+        })
+    }
+}
+
+window.uiTestSuite = new UITestSuite()