tests: test_append_data, cant run tests because of seg fault

tests/test_mainwin.py

@@ -15,7 +15,9 @@ from grum.menus import BarMenu
 from grum.mdi import MDIArea
 from grum.rpc import RPCServerThread
 from PyQt5.QtTest import QSignalSpy
+from grum.cli import main
 
+from math import isclose
 
 # from parameterized import parameterized
 
@@ -30,8 +32,14 @@ class TestViewUnit(unittest.TestCase):
 
     def tearDown(self) -> None:
         print("teardown")
+        # self.mw.rst.server = []
+        # assert self.mw.rst.server == 1
+        self.mw.rst.server.shutdown()
+        self.mw.rst.server.server_close()
+        #   self.mw.rst.disconnect()
+        # self.mw.rst.shutdown()
+        # self.mw.rst.shutdown()
         self.app.quit()
-        self.mw.rst.shutdown()
 
     def test_defaults(self):
 
@@ -85,3 +93,15 @@ class TestViewUnit(unittest.TestCase):
 
         assert len(spy_sig_make_new_plot) == 0  # assert not called
 
+    def test_append_data(self):
+        mw=self.mw
+        item = mw.lst.lst.get("sine")
+        item.set_alarm = mock.MagicMock()
+        item.value.append = mock.MagicMock()
+
+        point = (1,2)
+
+        mw.append_data("sine", point)       
+        item.value.append.assert_called_once_with(point)
+        assert item.set_alarm.called_once_with(True)
+