make GM self-test run gm/rebaseline_server unittests

gm/tests/run.sh

Index: gm/tests/run.sh
diff --git a/gm/tests/run.sh b/gm/tests/run.sh
index 7e1f03dcb17c56d31bfffb3e315196294f286163..29074e5f1dafccfcb0f9e1e2cd5ef52632930dc8 100755
--- a/gm/tests/run.sh
+++ b/gm/tests/run.sh
@@ -47,10 +47,11 @@ function compare_directories {
 # Run a command, and validate that it succeeds (returns 0).
 function assert_passes {
   COMMAND="$1"
-  OUTPUT=$($COMMAND 2>&1)
+  echo
+  echo "assert_passes $COMMAND ..."

[epoger, 2014/01/24 17:35:48]

I think it's better for the output to include more info about what ran,
especially for debugging failures on the bots.

+  $COMMAND
   if [ $? != 0 ]; then
     echo "This command was supposed to pass, but failed: [$COMMAND]"
-    echo $OUTPUT
     ENCOUNTERED_ANY_ERRORS=1
   fi
 }
@@ -58,10 +59,11 @@ function assert_passes {
 # Run a command, and validate that it fails (returns nonzero).
 function assert_fails {
   COMMAND="$1"
-  OUTPUT=$($COMMAND 2>&1)
+  echo
+  echo "assert_fails $COMMAND ..."
+  $COMMAND
   if [ $? == 0 ]; then
     echo "This command was supposed to fail, but passed: [$COMMAND]"
-    echo $OUTPUT
     ENCOUNTERED_ANY_ERRORS=1
   fi
 }
@@ -274,6 +276,9 @@ for CASE in $FAILING_CASES; do
   assert_fails "python gm/display_json_results.py $GM_OUTPUTS/$CASE/$OUTPUT_EXPECTED_SUBDIR/json-summary.txt"
 done
 
+# Exercise all rebaseline_server unittests.
+assert_passes "python gm/rebaseline_server/test_all.py"
+
 if [ $ENCOUNTERED_ANY_ERRORS == 0 ]; then
   echo "All tests passed."
   exit 0