gpaddmirrors: add multi-host tablespace test

Co-authored-by: NJacob Champion <pchampion@pivotal.io>

gpMgmt/test/behave/mgmt_utils/gpaddmirrors.feature

@@ -58,6 +58,7 @@ Feature: Tests for gpaddmirrors
         And the user runs "gpstop -aqM fast"
 
     @concourse_cluster
+
     Scenario: gpaddmirrors with a default master data directory
         Given a working directory of the test as '/tmp/gpaddmirrors'
         And the database is killed on hosts "mdw,sdw1"
@@ -103,9 +104,26 @@ Feature: Tests for gpaddmirrors
         And gpaddmirrors adds mirrors with temporary data dir
         And an FTS probe is triggered
         And the segments are synchronized
-        When user kills all primary processes with SIGTERM
+        When user kills all primary processes
         And user can start transactions
         Then verify that there is a "heap" table "public.heap_table" in "gptest" with "100" rows
         Then verify that there is a "ao" table "public.ao_table" in "gptest" with "100" rows
         Then verify that there is a "co" table "public.co_table" in "gptest" with "100" rows
         And the user runs "gpstop -aqM fast"
+
+    @concourse_cluster
+    Scenario: tablespaces work on a multi-host environment
+        Given a working directory of the test as '/tmp/gpaddmirrors'
+          And the database is not running
+          And a cluster is created with no mirrors on "mdw" and "sdw1"
+          And a tablespace is created with data
+         When gpaddmirrors adds mirrors
+         Then verify the database has mirrors
+
+         When an FTS probe is triggered
+          And the segments are synchronized
+         Then the tablespace is valid
+
+         When user kills all primary processes
+          And user can start transactions
+         Then the tablespace is valid