Tests added

Incorrect speed sign after rotation through zero degrees fixed

Author: PixelsCommander

Gruntfile.js

@@ -7,10 +7,15 @@ module.exports = function(grunt) {
                     'dist/propeller.min.js': ['src/propeller.js']
                 }
             }
+        },
+        karma: {
+            unit: {
+                configFile: 'karma.conf.js'
+            }
         }
-
     });
 
+    grunt.loadNpmTasks('grunt-karma');
     grunt.loadNpmTasks('grunt-contrib-uglify');
 
     grunt.registerTask('default', 'uglify');

dist/propeller.min.js

@@ -0,0 +1,69 @@
+// Karma configuration
+// Generated on Sat Feb 01 2014 21:21:47 GMT+0100 (CET)
+
+module.exports = function(config) {
+  config.set({
+
+    // base path, that will be used to resolve files and exclude
+    basePath: '',
+
+
+    // frameworks to use
+    frameworks: ['jasmine'],
+
+
+    // list of files / patterns to load in the browser
+    files: [
+      'src/*.js',
+      'spec/*.js'
+    ],
+
+
+    // list of files to exclude
+    exclude: [
+      
+    ],
+
+
+    // test results reporter to use
+    // possible values: 'dots', 'progress', 'junit', 'growl', 'coverage'
+    reporters: ['progress'],
+
+
+    // web server port
+    port: 9876,
+
+
+    // enable / disable colors in the output (reporters and logs)
+    colors: true,
+
+
+    // level of logging
+    // possible values: config.LOG_DISABLE || config.LOG_ERROR || config.LOG_WARN || config.LOG_INFO || config.LOG_DEBUG
+    logLevel: config.LOG_INFO,
+
+
+    // enable / disable watching file and executing tests whenever any file changes
+    autoWatch: true,
+
+
+    // Start these browsers, currently available:
+    // - Chrome
+    // - ChromeCanary
+    // - Firefox
+    // - Opera (has to be installed with `npm install karma-opera-launcher`)
+    // - Safari (only Mac; has to be installed with `npm install karma-safari-launcher`)
+    // - PhantomJS
+    // - IE (only Windows; has to be installed with `npm install karma-ie-launcher`)
+    browsers: ['PhantomJS'],
+
+
+    // If browser does not capture in given timeout [ms], kill it
+    captureTimeout: 60000,
+
+
+    // Continuous Integration mode
+    // if true, it capture browsers, run tests and exit
+    singleRun: false
+  });
+};

karma.conf.js

@@ -1,26 +1,37 @@
 {
-    "name": "Propeller",
-    "version": "0.3.0",
-    "description": "JavaScript library to rotate elements by mouse with inertia or without it.",
-    "main": "index.js",
-    "directories": {
-        "example": "example"
-    },
-    "scripts": {
-        "test": "echo \"Error: no test specified\" && exit 1"
-    },
-    "repository": {
-        "type": "git",
-        "url": "https://github.com/PixelsCommander/Propeller.git"
-    },
-    "author": "Denis Radin",
-    "license": "MIT",
-    "bugs": {
-        "url": "https://github.com/PixelsCommander/Propeller/issues"
-    },
-    "homepage": "https://github.com/PixelsCommander/Propeller",
-    "devDependencies": {
-        "grunt": "~0.4.2",
-        "grunt-contrib-uglify": "~0.2.7"
-    }
+  "name": "Propeller",
+  "version": "0.3.0",
+  "description": "JavaScript library to rotate elements by mouse with inertia or without it.",
+  "main": "index.js",
+  "directories": {
+    "example": "example"
+  },
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/PixelsCommander/Propeller.git"
+  },
+  "author": "Denis Radin",
+  "license": "MIT",
+  "bugs": {
+    "url": "https://github.com/PixelsCommander/Propeller/issues"
+  },
+  "homepage": "https://github.com/PixelsCommander/Propeller",
+  "devDependencies": {
+    "grunt": "~0.4.2",
+    "grunt-contrib-uglify": "~0.2.7",
+    "karma-script-launcher": "~0.1.0",
+    "karma-chrome-launcher": "~0.1.2",
+    "karma-firefox-launcher": "~0.1.3",
+    "karma-html2js-preprocessor": "~0.1.0",
+    "karma-jasmine": "~0.1.5",
+    "requirejs": "~2.1.10",
+    "karma-requirejs": "~0.2.1",
+    "karma-coffee-preprocessor": "~0.1.2",
+    "karma-phantomjs-launcher": "~0.1.1",
+    "karma": "~0.10.9",
+    "grunt-karma": "~0.6.2"
+  }
 }

package.json

@@ -0,0 +1,20 @@
+var propeller = new Propeller(document.body);
+
+describe("Angle transformation routines", function() {
+    it("should be able to determine shortest angle between two angles", function() {
+        expect(propeller.differenceBetweenAngles(45, 0)).toEqual(45);
+    });
+});
+
+describe("Defaults configuration", function() {
+    it("should have minimal inertia and minimal angle change be set from defaults", function() {
+        expect(propeller.minimalAngleChange).toEqual(0.1);
+        expect(propeller.minimalInertia).toEqual(0.001);
+    });
+});
+
+describe("Element coordinates detection", function() {
+    it("should return 0 for document.body.left", function() {
+        expect(propeller.getViewOffset().x).toEqual(0);
+    });
+});