Get enabled features: Removes sorting (#103)

Author: rashidsp

src/Optimizely/Optimizely.php

@@ -542,7 +542,6 @@ public function getEnabledFeatures($userId, $attributes = null)
             }
         }
 
-        sort($enabledFeatureKeys);
         return $enabledFeatureKeys;
     }
 

tests/OptimizelyTest.php

@@ -2248,52 +2248,6 @@ public function testGetEnabledFeaturesGivenFeaturesAreEnabledForUser()
         );
     }
 
-    public function testGetEnabledFeaturesReturnsSortedFeatureKeys()
-    {
-        $optimizelyMock = $this->getMockBuilder(Optimizely::class)
-            ->setConstructorArgs(array($this->datafile))
-            ->setMethods(array('isFeatureEnabled'))
-            ->getMock();
-
-        // Mock isFeatureEnabled and assert that isFeatureEnabled does get called in an unsorted order
-        $optimizelyMock->expects($this->at(0))
-            ->method('isFeatureEnabled')
-            ->with('boolean_feature', 'user_id', [])
-            ->willReturn(true);
-        $optimizelyMock->expects($this->at(1))
-            ->method('isFeatureEnabled')
-            ->with('double_single_variable_feature', 'user_id', [])
-            ->willReturn(true);
-        $optimizelyMock->expects($this->at(2))
-            ->method('isFeatureEnabled')
-            ->with('integer_single_variable_feature', 'user_id', [])
-            ->willReturn(true);
-        $optimizelyMock->expects($this->at(3))
-            ->method('isFeatureEnabled')
-            ->with('boolean_single_variable_feature', 'user_id', [])
-            ->willReturn(true);
-        $optimizelyMock->expects($this->at(4))
-            ->method('isFeatureEnabled')
-            ->with('string_single_variable_feature', 'user_id', [])
-            ->willReturn(true);
-        $optimizelyMock->expects($this->at(5))
-            ->method('isFeatureEnabled')
-            ->with('multi_variate_feature', 'user_id', [])
-            ->willReturn(true);
-
-        $this->assertEquals(
-            [
-                'boolean_feature',
-                'boolean_single_variable_feature',
-                'double_single_variable_feature',
-                'integer_single_variable_feature',
-                'multi_variate_feature',
-                'string_single_variable_feature'
-            ],
-            $optimizelyMock->getEnabledFeatures("user_id", [])
-        );
-    }
-
     public function testGetEnabledFeaturesWithUserAttributes()
     {
         $optimizelyMock = $this->getMockBuilder(Optimizely::class)