Adding clustering failure test cases

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Change-Id: I6e4c00c34cdc9cef74fae65d253656d04c1ce59d
Signed-off-by: Harman Singh <harmasin@cisco.com>
(cherry picked from commit 73fade3ab5b2b814dce51f123a44fd8c8f0810c4)

Change-Id: I218160297363ccf3a9ef0d112c8ab14d86913eeb
Signed-off-by: Luis Gomez <ecelgp@gmail.com>
Merge "Adding clustering failure test cases" into stable/helium