moduleDependences task

katas/moduleDependences/README.md

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+## Module Dependencies
+
+Write recursive function that return all  dependencies (and sub-dependencies) in unique module, sort dependencies in alphabet order. 
+Dependencies should be displayed as * @ * version dependency, eg. `Inflection @ 1.2.6`.
+
+Extra Task -> * @ * allows multiple versions of the same module, but duplicates (identical versions) must be removed.
+
+## Arguments
+
+* `tree`�: tree of dependencies.  In Example section you can see the structure.
+
+## Example
+
+// See the example
+
+```javascript
+
+var loremIpsum = {
+  "name": "lorem-ipsum",
+  "version": "0.1.1",
+  "dependencies": {
+    "optimist": {
+      "version": "0.3.7",
+      "dependencies": {
+        "wordwrap": {
+          "version": "0.0.2"
+        }
+      }
+    },
+    "inflection": {
+      "version": "1.2.6"
+    }
+  }
+}
+
+getDependencies(loremIpsum) // => [ 'inflection@1.2.6', 'optimist@0.3.7', 'wordwrap@0.0.2' ]
+
+```
+## Conditions
+
+* You can't use `for`/`while`.
+
+## Base
+
+// Your work is to implement something like in Example in JavaScript.
+// With this purpose, I have defined the getDependencies function.
+
+```js
+function getDependencies(tree) {
+ // ... your code here.
+ // NOTE: you can add some new arguments to function
+}
+
+module.exports = getDependencies
+```
+
+## Recourses
+
+* https://developer.mozilla.org/fr/docs/Web/JavaScript/Reference/Objets_globaux/Object/keys

katas/moduleDependences/get-dependencies-test.js

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+describe('module dependencies', function() {
+  var testTree;
+
+  beforeEach(function() {
+      loremIpsum = {
+        "name": "lorem-ipsum",
+        "version": "0.1.1",
+        "dependencies": {
+          "optimist": {
+            "version": "0.3.7",
+            "dependencies": {
+              "wordwrap": {
+                "version": "0.0.2"
+              }
+            }
+          },
+          "inflection": {
+            "version": "1.2.6"
+          }
+        }
+      },
+      lorem = {
+            "dependencies": {
+              "wordwrap": {
+                "version": "0.0.2",
+                "version": "1.0.2",
+              }
+            }
+      },
+      loremEmpty = {
+            "dependencies": {
+              "wordwrap": {
+              }
+            }
+      }
+  });
+
+  it('should return correct array of dependencies in descending order', function() {
+    expect(getDependencies(loremIpsum)).toEqual([ 'inflection@1.2.6', 'optimist@0.3.7', 'wordwrap@0.0.2']);
+  });
+
+  it('should return latest version of dependency'), function() {
+    expect(getDependencies(lorem)).toEqual([ 'wordwrap@1.0.2']);
+  });
+
+  it('should have the same character @'), function() {
+    var result = getDependencies(lorem);
+    expect(result[0].slice(-6,-5)).toEqual('@');
+  });
+
+  it('should return empty array if module doesn\'t have dependencies'), function() {
+    expect(getDependencies(loremEmpty)).toEqual([]);
+  });
+});

katas/moduleDependences/get-dependencies.js

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+function getDependencies(tree) {
+ // ... your code here.
+}