test: Robustify opening the host switcher in more places

test/verify/check-shell-multi-machine-key

@@ -18,6 +18,7 @@
 # along with Cockpit; If not, see <https://www.gnu.org/licenses/>.
 
 import re
+import time
 
 import testlib
 
@@ -192,6 +193,9 @@ class TestMultiMachineKeyAuth(testlib.MachineCase):
         m2.execute("rm /home/admin/.ssh/authorized_keys")
 
         b.click("#hosts-sel button")
+        # the opening animation takes quite long, don't move elements underneath mouse clicks
+        b.wait_js_cond('ph_count_animations("#nav-hosts") == 0')
+        time.sleep(0.2)
         b.click("button:contains('Edit hosts')")
         b.click("#nav-hosts .nav-item a[href='/@10.111.113.2'] + span button.nav-action.pf-m-secondary")
 
@@ -248,6 +252,9 @@ Host 10.111.113.2
         self.load_key('id_rsa', 'foobar')
 
         b.click("#hosts-sel button")
+        # the opening animation takes quite long, don't move elements underneath mouse clicks
+        b.wait_js_cond('ph_count_animations("#nav-hosts") == 0')
+        time.sleep(0.2)
         b.click("button:contains('Add new host')")
         b.wait_visible('#hosts_setup_server_dialog')
         b.set_input_text('#add-machine-address', "10.111.113.2")
@@ -284,6 +291,9 @@ Host 10.111.113.2
         b.switch_to_top()
 
         b.click("#hosts-sel button")
+        # the opening animation takes quite long, don't move elements underneath mouse clicks
+        b.wait_js_cond('ph_count_animations("#nav-hosts") == 0')
+        time.sleep(0.2)
         b.click("button:contains('Add new host')")
         b.wait_visible('#hosts_setup_server_dialog')
         b.set_input_text("#add-machine-address", "10.111.113.2")