qa: add tests for rbd ls with old and new formats

Signed-off-by: Josh Durgin <josh.durgin@inktank.com>

qa/workunits/rbd/copy.sh

@@ -79,8 +79,39 @@ test_rename() {
     remove_images
 }
 
+test_ls() {
+    echo "testing ls..."
+    remove_images
+
+    rbd create -s 1 test1
+    rbd create -s 1 test2
+    rbd ls | grep test1
+    rbd ls | grep test2
+    rbd ls | wc -l | grep 2
+
+    rbd rm test1
+    rbd rm test2
+
+    rbd create --new-format -s 1 test1
+    rbd create --new-format -s 1 test2
+    rbd ls | grep test1
+    rbd ls | grep test2
+    rbd ls | wc -l | grep 2
+
+    rbd rm test1
+    rbd rm test2
+
+    rbd create --new-format -s 1 test1
+    rbd create -s 1 test2
+    rbd ls | grep test1
+    rbd ls | grep test2
+    rbd ls | wc -l | grep 2
+
+    remove_images
+}
 
 test_rename
+test_ls
 test_others
 
 echo OK