bdd: Allow to run invalid commands via quteproc

tests/end2end/features/conftest.py

@@ -123,10 +123,18 @@ def run_command(quteproc, httpbin, command):
         count = int(count)
     else:
         count = None
+
+    invalid_tag = ' (invalid command)'
+    if command.endswith(invalid_tag):
+        command = command[:-len(invalid_tag)]
+        invalid = True
+    else:
+        invalid = False
+
     command = command.replace('(port)', str(httpbin.port))
     command = command.replace('(testdata)', utils.abs_datapath())
 
-    quteproc.send_cmd(command, count=count)
+    quteproc.send_cmd(command, count=count, invalid=invalid)
 
 
 @bdd.when(bdd.parsers.parse("I reload"))

tests/end2end/fixtures/quteprocess.py

@@ -330,8 +330,13 @@ class QuteProc(testprocess.Process):
         finally:
             super().after_test()
 
-    def send_cmd(self, command, count=None):
-        """Send a command to the running qutebrowser instance."""
+    def send_cmd(self, command, count=None, invalid=False):
+        """Send a command to the running qutebrowser instance.
+
+        Args:
+            count: The count to pass to the command.
+            invalid: If True, we don't wait for "command called: ..." in the log
+        """
         summary = command
         if count is not None:
             summary += ' (count {})'.format(count)
@@ -346,8 +351,9 @@ class QuteProc(testprocess.Process):
 
         ipc.send_to_running_instance(self._ipc_socket, [command],
                                      target_arg='')
-        self.wait_for(category='commands', module='command', function='run',
-                      message='command called: *')
+        if not invalid:
+            self.wait_for(category='commands', module='command',
+                          function='run', message='command called: *')
 
     def get_setting(self, sect, opt):
         """Get the value of a qutebrowser setting."""