adding test for social wall: publish a post and see it on your friend wall and comment a post

tests/behat/features/socialWall.feature

@@ -0,0 +1,39 @@
+
+Feature: Social Wall
+  A user should be able to send message on the social wall and the message
+should be on its friend wall.
+
+  Background: Given I am a platform administrator
+     And I have a friend named "fbaggins" with id "11" 
+
+  Scenario: Send a new post
+    Given I am a platform administrator
+    And I am on "main/social/home.php"
+    Then I should see "Social wall"
+    When I fill in the following:
+      | social_wall_new_msg_main | Behat test social wall post content |
+    And I press "Post"
+    And wait for the page to be loaded
+    Then I should see "Message Sent"
+    And I should see "Behat test social wall post content"
+
+  Scenario: View friend's post on my wall
+    Given I am a platform administrator
+    And I have a friend named "fbaggins" with id "11"
+    When I am logged as "fbaggins"
+    And I am on "main/social/home.php"
+    Then I should see "Behat test social wall post content"
+
+  Scenario: Comment friend's post on my wall
+    Given I am a platform administrator
+    And I have a friend named "fbaggins" with id "11"
+    When I am logged as "fbaggins"
+    And I am on "main/social/home.php"
+    Then I should see "Behat test social wall post content"
+    When I fill in the following:
+      | comment | Behat test comment on social wall post |
+    And I press "Post"
+    And wait for the page to be loaded
+    Then I should see "Behat test comment on social wall post depuis moins
+d'une minute"
+