feat(file-system): add ability to remove files or directories

README.md

@@ -714,6 +714,7 @@ fileSystem.install(defineSupportCode)
 ```yaml    
 Given:
   - /^(?:I )?create directory (.+)$/
+  - /^(?:I )?remove (?:file|directory) (.+)$/
 
 When:
   # No definitions

examples/features/file_system/file_system.feature

@@ -49,4 +49,11 @@ Feature: File system extension
   Scenario: Creating nested directory
     Given I set cwd to examples/features/file_system/files
     And I create directory deeply/nested/directory
-    Then directory deeply/nested/directory should exist
+    Then directory deeply/nested/directory should exist
+
+  Scenario: Creating and removing directory
+    Given I set cwd to examples/features/file_system/files
+    And I create directory deeply/nested/directory
+    Then directory deeply/nested/directory should exist
+    Given I remove directory deeply/nested/directory
+    Then directory deeply/nested/directory should not exist

package.json

@@ -80,7 +80,7 @@
       "git add"
     ],
     "*.feature": [
-      "examples"
+      "cucumberjs --require examples/support examples/features --tags @offline"
     ],
     "*.js": [
       "lint-fix",

src/extensions/file_system/definitions.js

@@ -10,6 +10,13 @@ module.exports = ({ Given, Then }) => {
         return this.fileSystem.createDirectory(this.cli.getCwd(), directory)
     })
 
+    /**
+     * Remove a file or directory.
+     */
+    Given(/^(?:I )?remove (?:file|directory) (.+)$/, function(fileOrDirectory) {
+        return this.fileSystem.remove(this.cli.getCwd(), fileOrDirectory)
+    })
+
     /**
      * Checking file/directory presence.
      */

src/extensions/file_system/file_system.js

@@ -51,10 +51,13 @@ exports.getFileInfo = (cwd, file) =>
  * @param {string} directory - Directory name
  * @return {Promise.<boolean>}
  */
-exports.createDirectory = (cwd, directory) =>
-    new Promise((resolve, reject) => {
-        fs.mkdirs(path.join(cwd, directory), err => {
-            if (err) return reject(err)
-            resolve(true)
-        })
-    })
+exports.createDirectory = (cwd, directory) => fs.mkdirs(path.join(cwd, directory))
+
+/**
+ * Removes a file or directory.
+ *
+ * @param {string} cwd             - Current Working Directory
+ * @param {string} fileOrDirectory - File or directory name
+ * @return {Promise.<boolean>}
+ */
+exports.remove = (cwd, fileOrDirectory) => fs.remove(path.join(cwd, fileOrDirectory))