added lorempixel and unsplash properties to image obj

4 files changed, 497 insertions, 342 deletions

diff --git a/lib/image.js b/lib/image.js
index ef4c12da..f64b1545 100644
--- a/lib/image.js
+++ b/lib/image.js
@@ -1,244 +1,23 @@
 /**
  *
  * @namespace faker.image
+ * @property {object} lorempixel - faker.image.lorempixel
+ * @property {object} unsplash - faker.image.unsplash
+ * @default Default provider is unsplash image provider
  */
 var Image = function (faker) {
 
-  var self = this;
-  var otherCategories = ["abstract", "animals", "business", "cats", "city", "nightlife", "fashion", "sports", "technics", "transport"];
-  var unsplashCategories = ["food", "nature", "people", "technology", "objects", "buildings"];
+  var self = this
+  var Lorempixel = require('./image_providers/lorempixel');
+  var Unsplash = require('./image_providers/unsplash');
 
-  /**
-   * image
-   *
-   * @param {number} width
-   * @param {number} height
-   * @param {boolean} randomize
-   * @method faker.image.image
-   */
-  self.image = function (width, height, randomize) {
-    var allCategories = unsplashCategories.concat(otherCategories);
-    return self[faker.random.arrayElement(allCategories)](width, height, randomize);
-  };
-  /**
-   * avatar
-   *
-   * @method faker.image.avatar
-   */
-  self.avatar = function () {
-    return faker.internet.avatar();
-  };
-  /**
-   * imageUrl
-   *
-   * @param {number} width
-   * @param {number} height
-   * @param {string} category
-   * @param {boolean} randomize
-   * @method faker.image.imageUrl
-   */
-  self.imageUrl = function (width, height, category, randomize) {
-      var width = width || 640;
-      var height = height || 480;
 
-      var url ='https://source.unsplash.com';
+  self.lorempixel = new Lorempixel(faker);
+  self.unsplash = new Unsplash(faker);
 
-      if (typeof category !== 'undefined' && unsplashCategories.indexOf(category) > -1) {
-        url += '/category/' + category;
-      }
-
-      url += '/' + width + 'x' + height
-
-      if (typeof category !== 'undefined' && otherCategories.indexOf(category) > -1) {
-        url += '?' + category
-      }
+  Object.assign(self, self.unsplash);
+}
 
-      /*
-      Current version of unsplash official wrapper(source.unsplash.com) does not support full randomize yet.
-      I will implement randomize function with official unsplash api in next version.
-      if (randomize) {
-        url += '?' + faker.random.number()
-      }
-      */
 
-      return url;
-  };
-  /**
-   * abstract
-   *
-   * @param {number} width
-   * @param {number} height
-   * @param {boolean} randomize
-   * @method faker.image.abstract
-   */
-  self.abstract = function (width, height, randomize) {
-    return faker.image.imageUrl(width, height, 'abstract', randomize);
-  };
-  /**
-   * animals
-   *
-   * @param {number} width
-   * @param {number} height
-   * @param {boolean} randomize
-   * @method faker.image.animals
-   */
-  self.animals = function (width, height, randomize) {
-    return faker.image.imageUrl(width, height, 'animals', randomize);
-  };
-  /**
-   * business
-   *
-   * @param {number} width
-   * @param {number} height
-   * @param {boolean} randomize
-   * @method faker.image.business
-   */
-  self.business = function (width, height, randomize) {
-    return faker.image.imageUrl(width, height, 'business', randomize);
-  };
-  /**
-   * cats
-   *
-   * @param {number} width
-   * @param {number} height
-   * @param {boolean} randomize
-   * @method faker.image.cats
-   */
-  self.cats = function (width, height, randomize) {
-    return faker.image.imageUrl(width, height, 'cats', randomize);
-  };
-  /**
-   * city
-   *
-   * @param {number} width
-   * @param {number} height
-   * @param {boolean} randomize
-   * @method faker.image.city
-   */
-  self.city = function (width, height, randomize) {
-    return faker.image.imageUrl(width, height, 'city', randomize);
-  };
-  /**
-   * food
-   *
-   * @param {number} width
-   * @param {number} height
-   * @param {boolean} randomize
-   * @method faker.image.food
-   */
-  self.food = function (width, height, randomize) {
-    return faker.image.imageUrl(width, height, 'food', randomize);
-  };
-  /**
-   * nightlife
-   *
-   * @param {number} width
-   * @param {number} height
-   * @param {boolean} randomize
-   * @method faker.image.nightlife
-   */
-  self.nightlife = function (width, height, randomize) {
-    return faker.image.imageUrl(width, height, 'nightlife', randomize);
-  };
-  /**
-   * fashion
-   *
-   * @param {number} width
-   * @param {number} height
-   * @param {boolean} randomize
-   * @method faker.image.fashion
-   */
-  self.fashion = function (width, height, randomize) {
-    return faker.image.imageUrl(width, height, 'fashion', randomize);
-  };
-  /**
-   * people
-   *
-   * @param {number} width
-   * @param {number} height
-   * @param {boolean} randomize
-   * @method faker.image.people
-   */
-  self.people = function (width, height, randomize) {
-    return faker.image.imageUrl(width, height, 'people', randomize);
-  };
-  /**
-   * nature
-   *
-   * @param {number} width
-   * @param {number} height
-   * @param {boolean} randomize
-   * @method faker.image.nature
-   */
-  self.nature = function (width, height, randomize) {
-    return faker.image.imageUrl(width, height, 'nature', randomize);
-  };
-  /**
-   * sports
-   *
-   * @param {number} width
-   * @param {number} height
-   * @param {boolean} randomize
-   * @method faker.image.sports
-   */
-  self.sports = function (width, height, randomize) {
-    return faker.image.imageUrl(width, height, 'sports', randomize);
-  };
-  /**
-   * technics
-   *
-   * @param {number} width
-   * @param {number} height
-   * @param {boolean} randomize
-   * @method faker.image.technics
-   */
-  self.technics = function (width, height, randomize) {
-    return faker.image.imageUrl(width, height, 'technics', randomize);
-  };
-  /**
-   * transport
-   *
-   * @param {number} width
-   * @param {number} height
-   * @param {boolean} randomize
-   * @method faker.image.transport
-   */
-  self.transport = function (width, height, randomize) {
-    return faker.image.imageUrl(width, height, 'transport', randomize);
-  };
-  /**
-   * technology
-   *
-   * @param {number} width
-   * @param {number} height
-   * @param {boolean} randomize
-   * @method faker.image.technology
-   */
-  self.technology = function (width, height, randomize) {
-    return faker.image.imageUrl(width, height, 'technology', randomize);
-  };
-  /**
-   * objects
-   *
-   * @param {number} width
-   * @param {number} height
-   * @param {boolean} randomize
-   * @method faker.image.objects
-   */
-  self.objects = function (width, height, randomize) {
-    return faker.image.imageUrl(width, height, 'objects', randomize);
-  };
-  /**
-   * buildings
-   *
-   * @param {number} width
-   * @param {number} height
-   * @param {boolean} randomize
-   * @method faker.image.buildings
-   */
-  self.buildings = function (width, height, randomize) {
-    return faker.image.imageUrl(width, height, 'buildings', randomize);
-  };
-}
 
 module["exports"] = Image;
diff --git a/lib/image_providers/lorempixel.js b/lib/image_providers/lorempixel.js
new file mode 100644
index 00000000..44c0e007
--- /dev/null
+++ b/lib/image_providers/lorempixel.js
@@ -0,0 +1,199 @@
+/**
+ *
+ * @namespace lorempixel
+ * @memberof faker.image
+ */
+var Lorempixel = function (faker) {
+
+  var self = this;
+
+  /**
+   * image
+   *
+   * @param {number} width
+   * @param {number} height
+   * @param {boolean} randomize
+   * @method faker.image.lorempixel.image
+   */
+  self.image = function (width, height, randomize) {
+    var categories = ["abstract", "animals", "business", "cats", "city", "food", "nightlife", "fashion", "people", "nature", "sports", "technics", "transport"];
+    return self[faker.random.arrayElement(categories)](width, height, randomize);
+  };
+  /**
+   * avatar
+   *
+   * @method faker.image.lorempixel.avatar
+   */
+  self.avatar = function () {
+    return faker.internet.avatar();
+  };
+  /**
+   * imageUrl
+   *
+   * @param {number} width
+   * @param {number} height
+   * @param {string} category
+   * @param {boolean} randomize
+   * @method faker.image.lorempixel.imageUrl
+   */
+  self.imageUrl = function (width, height, category, randomize) {
+      var width = width || 640;
+      var height = height || 480;
+
+      var url ='http://lorempixel.com/' + width + '/' + height;
+      if (typeof category !== 'undefined') {
+        url += '/' + category;
+      }
+
+      if (randomize) {
+        url += '?' + faker.random.number()
+      }
+
+      return url;
+  };
+  /**
+   * abstract
+   *
+   * @param {number} width
+   * @param {number} height
+   * @param {boolean} randomize
+   * @method faker.image.lorempixel.abstract
+   */
+  self.abstract = function (width, height, randomize) {
+    return faker.image.lorempixel.imageUrl(width, height, 'abstract', randomize);
+  };
+  /**
+   * animals
+   *
+   * @param {number} width
+   * @param {number} height
+   * @param {boolean} randomize
+   * @method faker.image.lorempixel.animals
+   */
+  self.animals = function (width, height, randomize) {
+    return faker.image.lorempixel.imageUrl(width, height, 'animals', randomize);
+  };
+  /**
+   * business
+   *
+   * @param {number} width
+   * @param {number} height
+   * @param {boolean} randomize
+   * @method faker.image.lorempixel.business
+   */
+  self.business = function (width, height, randomize) {
+    return faker.image.lorempixel.imageUrl(width, height, 'business', randomize);
+  };
+  /**
+   * cats
+   *
+   * @param {number} width
+   * @param {number} height
+   * @param {boolean} randomize
+   * @method faker.image.lorempixel.cats
+   */
+  self.cats = function (width, height, randomize) {
+    return faker.image.lorempixel.imageUrl(width, height, 'cats', randomize);
+  };
+  /**
+   * city
+   *
+   * @param {number} width
+   * @param {number} height
+   * @param {boolean} randomize
+   * @method faker.image.lorempixel.city
+   */
+  self.city = function (width, height, randomize) {
+    return faker.image.lorempixel.imageUrl(width, height, 'city', randomize);
+  };
+  /**
+   * food
+   *
+   * @param {number} width
+   * @param {number} height
+   * @param {boolean} randomize
+   * @method faker.image.lorempixel.food
+   */
+  self.food = function (width, height, randomize) {
+    return faker.image.lorempixel.imageUrl(width, height, 'food', randomize);
+  };
+  /**
+   * nightlife
+   *
+   * @param {number} width
+   * @param {number} height
+   * @param {boolean} randomize
+   * @method faker.image.lorempixel.nightlife
+   */
+  self.nightlife = function (width, height, randomize) {
+    return faker.image.lorempixel.imageUrl(width, height, 'nightlife', randomize);
+  };
+  /**
+   * fashion
+   *
+   * @param {number} width
+   * @param {number} height
+   * @param {boolean} randomize
+   * @method faker.image.lorempixel.fashion
+   */
+  self.fashion = function (width, height, randomize) {
+    return faker.image.lorempixel.imageUrl(width, height, 'fashion', randomize);
+  };
+  /**
+   * people
+   *
+   * @param {number} width
+   * @param {number} height
+   * @param {boolean} randomize
+   * @method faker.image.lorempixel.people
+   */
+  self.people = function (width, height, randomize) {
+    return faker.image.lorempixel.imageUrl(width, height, 'people', randomize);
+  };
+  /**
+   * nature
+   *
+   * @param {number} width
+   * @param {number} height
+   * @param {boolean} randomize
+   * @method faker.image.lorempixel.nature
+   */
+  self.nature = function (width, height, randomize) {
+    return faker.image.lorempixel.imageUrl(width, height, 'nature', randomize);
+  };
+  /**
+   * sports
+   *
+   * @param {number} width
+   * @param {number} height
+   * @param {boolean} randomize
+   * @method faker.image.lorempixel.sports
+   */
+  self.sports = function (width, height, randomize) {
+    return faker.image.lorempixel.imageUrl(width, height, 'sports', randomize);
+  };
+  /**
+   * technics
+   *
+   * @param {number} width
+   * @param {number} height
+   * @param {boolean} randomize
+   * @method faker.image.lorempixel.technics
+   */
+  self.technics = function (width, height, randomize) {
+    return faker.image.lorempixel.imageUrl(width, height, 'technics', randomize);
+  };
+  /**
+   * transport
+   *
+   * @param {number} width
+   * @param {number} height
+   * @param {boolean} randomize
+   * @method faker.image.lorempixel.transport
+   */
+  self.transport = function (width, height, randomize) {
+    return faker.image.lorempixel.imageUrl(width, height, 'transport', randomize);
+  }
+}
+
+module["exports"] = Lorempixel;
diff --git a/lib/image_providers/unsplash.js b/lib/image_providers/unsplash.js
new file mode 100644
index 00000000..75d0d453
--- /dev/null
+++ b/lib/image_providers/unsplash.js
@@ -0,0 +1,129 @@
+/**
+ *
+ * @namespace unsplash
+ * @memberof faker.image
+ */
+var Unsplash = function (faker) {
+
+  var self = this;
+  var categories = ["food", "nature", "people", "technology", "objects", "buildings"];
+
+  /**
+   * image
+   *
+   * @param {number} width
+   * @param {number} height
+   * @param {string} keyword
+   * @method faker.image.unsplash.image
+   * @description search image from unsplash
+   */
+  self.image = function (width, height, keyword) {
+    return self.imageUrl(width, height, undefined, keyword);
+  };
+  /**
+   * avatar
+   *
+   * @method faker.image.unsplash.avatar
+   */
+  self.avatar = function () {
+    return faker.internet.avatar();
+  };
+  /**
+   * imageUrl
+   *
+   * @param {number} width
+   * @param {number} height
+   * @param {string} category
+   * @param {string} keyword
+   * @method faker.image.unsplash.imageUrl
+   */
+  self.imageUrl = function (width, height, category, keyword) {
+      var width = width || 640;
+      var height = height || 480;
+
+      var url ='https://source.unsplash.com';
+
+      if (typeof category !== 'undefined') {
+          url += '/category/' + category;
+      }
+
+      url += '/' + width + 'x' + height;
+
+      if (typeof keyword !== 'undefined') {
+          var keywordFormat = new RegExp('^([A-Za-z0-9].+,[A-Za-z0-9]+)$|^([A-Za-z0-9]+)$');
+          if (keywordFormat.test(keyword)) {
+            url += '?' + keyword;
+          }
+      }
+
+      return url;
+  };
+  /**
+   * food
+   *
+   * @param {number} width
+   * @param {number} height
+   * @param {string} keyword
+   * @method faker.image.unsplash.food
+   */
+  self.food = function (width, height, keyword) {
+    return faker.image.imageUrl(width, height, 'food', keyword);
+  };
+  /**
+   * people
+   *
+   * @param {number} width
+   * @param {number} height
+   * @param {string} keyword
+   * @method faker.image.unsplash.people
+   */
+  self.people = function (width, height, keyword) {
+    return faker.image.imageUrl(width, height, 'people', keyword);
+  };
+  /**
+   * nature
+   *
+   * @param {number} width
+   * @param {number} height
+   * @param {string} keyword
+   * @method faker.image.unsplash.nature
+   */
+  self.nature = function (width, height, keyword) {
+    return faker.image.imageUrl(width, height, 'nature', keyword);
+  };
+  /**
+   * technology
+   *
+   * @param {number} width
+   * @param {number} height
+   * @param {string} keyword
+   * @method faker.image.unsplash.technology
+   */
+  self.technology = function (width, height, keyword) {
+    return faker.image.imageUrl(width, height, 'technology', keyword);
+  };
+  /**
+   * objects
+   *
+   * @param {number} width
+   * @param {number} height
+   * @param {string} keyword
+   * @method faker.image.unsplash.objects
+   */
+  self.objects = function (width, height, keyword) {
+    return faker.image.imageUrl(width, height, 'objects', keyword);
+  };
+  /**
+   * buildings
+   *
+   * @param {number} width
+   * @param {number} height
+   * @param {string} keyword
+   * @method faker.image.unsplash.buildings
+   */
+  self.buildings = function (width, height, keyword) {
+    return faker.image.imageUrl(width, height, 'buildings', keyword);
+  };
+}
+
+module["exports"] = Unsplash;
diff --git a/test/image.unit.js b/test/image.unit.js
index a469ba87..d0d9a96e 100644
--- a/test/image.unit.js
+++ b/test/image.unit.js
@@ -5,130 +5,178 @@ if (typeof module !== 'undefined') {
 }
 
 describe("image.js", function () {
-    describe("imageUrl()", function () {
+    describe("lorempixel", function() {
+      describe("imageUrl()", function () {
         it("returns a random image url from lorempixel", function () {
+            var imageUrl = faker.image.lorempixel.imageUrl();
+
+            assert.equal(imageUrl, 'http://lorempixel.com/640/480');
+        });
+        it("returns a random image url from lorempixel with width and height", function () {
+            var imageUrl = faker.image.lorempixel.imageUrl(100, 100);
+
+            assert.equal(imageUrl, 'http://lorempixel.com/100/100');
+        });
+        it("returns a random image url for a specified category", function () {
+            var imageUrl = faker.image.lorempixel.imageUrl(100, 100, 'abstract');
+
+            assert.equal(imageUrl, 'http://lorempixel.com/100/100/abstract');
+        });
+      });
+      describe("avatar()", function () {
+          it("return a random avatar from UIFaces", function () {
+              assert.notEqual(-1, faker.image.lorempixel.avatar().indexOf('s3.amazonaws.com/uifaces/faces'));
+          })
+      });
+      describe("abstract()", function () {
+          it("returns a random abstract image url", function () {
+              var abstract = faker.image.lorempixel.abstract();
+              assert.equal(abstract, 'http://lorempixel.com/640/480/abstract');
+          });
+      });
+      describe("animals()", function () {
+          it("returns a random animals image url", function () {
+              var animals = faker.image.lorempixel.animals();
+              assert.equal(animals, 'http://lorempixel.com/640/480/animals');
+          });
+      });
+      describe("business()", function () {
+          it("returns a random business image url", function () {
+              var business = faker.image.lorempixel.business();
+              assert.equal(business, 'http://lorempixel.com/640/480/business');
+          });
+      });
+      describe("cats()", function () {
+          it("returns a random cats image url", function () {
+              var cats = faker.image.lorempixel.cats();
+              assert.equal(cats, 'http://lorempixel.com/640/480/cats');
+          });
+      });
+      describe("city()", function () {
+          it("returns a random city image url", function () {
+              var city = faker.image.lorempixel.city();
+              assert.equal(city, 'http://lorempixel.com/640/480/city');
+          });
+      });
+      describe("food()", function () {
+          it("returns a random food image url", function () {
+              var food = faker.image.lorempixel.food();
+              assert.equal(food, 'http://lorempixel.com/640/480/food');
+          });
+      });
+      describe("nightlife()", function () {
+          it("returns a random nightlife image url", function () {
+              var nightlife = faker.image.lorempixel.nightlife();
+              assert.equal(nightlife, 'http://lorempixel.com/640/480/nightlife');
+          });
+      });
+      describe("fashion()", function () {
+          it("returns a random fashion image url", function () {
+              var fashion = faker.image.lorempixel.fashion();
+              assert.equal(fashion, 'http://lorempixel.com/640/480/fashion');
+          });
+      });
+      describe("people()", function () {
+          it("returns a random people image url", function () {
+              var people = faker.image.lorempixel.people();
+              assert.equal(people, 'http://lorempixel.com/640/480/people');
+          });
+      });
+      describe("nature()", function () {
+          it("returns a random nature image url", function () {
+              var nature = faker.image.lorempixel.nature();
+              assert.equal(nature, 'http://lorempixel.com/640/480/nature');
+          });
+      });
+      describe("sports()", function () {
+          it("returns a random sports image url", function () {
+              var sports = faker.image.lorempixel.sports();
+              assert.equal(sports, 'http://lorempixel.com/640/480/sports');
+          });
+      });
+      describe("technics()", function () {
+          it("returns a random technics image url", function () {
+              var technics = faker.image.lorempixel.technics();
+              assert.equal(technics, 'http://lorempixel.com/640/480/technics');
+          });
+      });
+      describe("transport()", function () {
+          it("returns a random transport image url", function () {
+              var transport = faker.image.lorempixel.transport();
+              assert.equal(transport, 'http://lorempixel.com/640/480/transport');
+          });
+      });
+    });
+
+    describe("unsplash", function() {
+      describe("imageUrl()", function () {
+        it("returns a random image url from unsplash", function () {
             var imageUrl = faker.image.imageUrl();
 
             assert.equal(imageUrl, 'https://source.unsplash.com/640x480');
         });
-        it("returns a random image url from lorempixel with width and height", function () {
+        it("returns a random image url from unsplash with width and height", function () {
             var imageUrl = faker.image.imageUrl(100, 100);
 
             assert.equal(imageUrl, 'https://source.unsplash.com/100x100');
         });
         it("returns a random image url for a specified category", function () {
-            var imageUrl = faker.image.imageUrl(100, 100, 'abstract');
+            var imageUrl = faker.image.imageUrl(100, 100, 'food');
 
-            assert.equal(imageUrl, 'https://source.unsplash.com/100x100?abstract');
+            assert.equal(imageUrl, 'https://source.unsplash.com/category/food/100x100');
         });
-        /*
-        it.only("returns a random image url from lorempixel with a randomizer", function () {
-            var imageUrl = faker.image.imageUrl(100, 100, undefined, true);
+        it("returns a random image url with correct keywords for a specified category", function () {
+            var imageUrl = faker.image.imageUrl(100, 100, 'food', 'keyword1,keyword2');
 
-            console.log(imageUrl);
-            assert.ok(imageUrl.match(/^http:\/\/lorempixel.com\/100\/100\?[\d]+$/));
-        });
-        */
-    });
-    describe("avatar()", function () {
-        it("return a random avatar from UIFaces", function () {
-            assert.notEqual(-1, faker.image.avatar().indexOf('s3.amazonaws.com/uifaces/faces'));
-        })
-    });
-    describe("abstract()", function () {
-        it("returns a random abstract image url", function () {
-            var abstract = faker.image.abstract();
-            assert.equal(abstract, 'https://source.unsplash.com/640x480?abstract');
-        });
-    });
-    describe("animals()", function () {
-        it("returns a random animals image url", function () {
-            var animals = faker.image.animals();
-            assert.equal(animals, 'https://source.unsplash.com/640x480?animals');
-        });
-    });
-    describe("business()", function () {
-        it("returns a random business image url", function () {
-            var business = faker.image.business();
-            assert.equal(business, 'https://source.unsplash.com/640x480?business');
-        });
-    });
-    describe("cats()", function () {
-        it("returns a random cats image url", function () {
-            var cats = faker.image.cats();
-            assert.equal(cats, 'https://source.unsplash.com/640x480?cats');
-        });
-    });
-    describe("city()", function () {
-        it("returns a random city image url", function () {
-            var city = faker.image.city();
-            assert.equal(city, 'https://source.unsplash.com/640x480?city');
-        });
-    });
-    describe("food()", function () {
-        it("returns a random food image url", function () {
-            var food = faker.image.food();
-            assert.equal(food, 'https://source.unsplash.com/category/food/640x480');
-        });
-    });
-    describe("nightlife()", function () {
-        it("returns a random nightlife image url", function () {
-            var nightlife = faker.image.nightlife();
-            assert.equal(nightlife, 'https://source.unsplash.com/640x480?nightlife');
-        });
-    });
-    describe("fashion()", function () {
-        it("returns a random fashion image url", function () {
-            var fashion = faker.image.fashion();
-            assert.equal(fashion, 'https://source.unsplash.com/640x480?fashion');
-        });
-    });
-    describe("people()", function () {
-        it("returns a random people image url", function () {
-            var people = faker.image.people();
-            assert.equal(people, 'https://source.unsplash.com/category/people/640x480');
-        });
-    });
-    describe("nature()", function () {
-        it("returns a random nature image url", function () {
-            var nature = faker.image.nature();
-            assert.equal(nature, 'https://source.unsplash.com/category/nature/640x480');
-        });
-    });
-    describe("sports()", function () {
-        it("returns a random sports image url", function () {
-            var sports = faker.image.sports();
-            assert.equal(sports, 'https://source.unsplash.com/640x480?sports');
-        });
-    });
-    describe("technics()", function () {
-        it("returns a random technics image url", function () {
-            var technics = faker.image.technics();
-            assert.equal(technics, 'https://source.unsplash.com/640x480?technics');
-        });
-    });
-    describe("transport()", function () {
-        it("returns a random transport image url", function () {
-            var transport = faker.image.transport();
-            assert.equal(transport, 'https://source.unsplash.com/640x480?transport');
-        });
-    });
-    describe("technology()", function () {
-        it("returns a random technology image url", function () {
-            var transport = faker.image.technology();
-            assert.equal(transport, 'https://source.unsplash.com/category/technology/640x480');
-        });
-    });
-    describe("objects()", function () {
-        it("returns a random objects image url", function () {
-            var transport = faker.image.objects();
-            assert.equal(transport, 'https://source.unsplash.com/category/objects/640x480');
-        });
-    });
-    describe("buildings()", function () {
-        it("returns a random buildings image url", function () {
-            var transport = faker.image.buildings();
-            assert.equal(transport, 'https://source.unsplash.com/category/buildings/640x480');
+            assert.equal(imageUrl, 'https://source.unsplash.com/category/food/100x100?keyword1,keyword2');
         });
+        it("returns a random image url without keyword which format is wrong for a specified category", function () {
+            var imageUrl = faker.image.imageUrl(100, 100, 'food', 'keyword1,?ds)0123$*908932409');
+
+            assert.equal(imageUrl, 'https://source.unsplash.com/category/food/100x100');
+        });
+      });
+      describe("image()", function() {
+          it("returns a searching image url with keyword", function () {
+              var food = faker.image.image(100, 200, 'keyword1,keyword2,keyword3');
+              assert.equal(food, 'https://source.unsplash.com/100x200?keyword1,keyword2,keyword3');
+          });
+      })
+      describe("food()", function () {
+          it("returns a random food image url", function () {
+              var food = faker.image.food();
+              assert.equal(food, 'https://source.unsplash.com/category/food/640x480');
+          });
+      });
+      describe("people()", function () {
+          it("returns a random people image url", function () {
+              var people = faker.image.people();
+              assert.equal(people, 'https://source.unsplash.com/category/people/640x480');
+          });
+      });
+      describe("nature()", function () {
+          it("returns a random nature image url", function () {
+              var nature = faker.image.nature();
+              assert.equal(nature, 'https://source.unsplash.com/category/nature/640x480');
+          });
+      });
+      describe("technology()", function () {
+          it("returns a random technology image url", function () {
+              var transport = faker.image.technology();
+              assert.equal(transport, 'https://source.unsplash.com/category/technology/640x480');
+          });
+      });
+      describe("objects()", function () {
+          it("returns a random objects image url", function () {
+              var transport = faker.image.objects();
+              assert.equal(transport, 'https://source.unsplash.com/category/objects/640x480');
+          });
+      });
+      describe("buildings()", function () {
+          it("returns a random buildings image url", function () {
+              var transport = faker.image.buildings();
+              assert.equal(transport, 'https://source.unsplash.com/category/buildings/640x480');
+          });
+      });
     });
 });