tests: added test to test_new_plot

tests/test_mainwin.py

@@ -91,6 +91,18 @@ class TestViewUnit(unittest.TestCase):
 
         assert len(spy_sig_make_new_plot) == 0  # assert not called
 
+        mw.menu_settings.checkboxes["Open new plots"].setChecked(True)
+        assert mw.menu_settings.checkboxes["Open new plots"].isChecked() == True
+        spy_sig_make_new_plot = QSignalSpy(mw.sig_make_new_plot)
+        new_name_item = mw.lst.lst.get("new_name")
+        sub = MDISubPlot("new_name", new_name_item.value)
+        mw.mdi.add(sub)
+
+        mw.new_plot("new_name", cfg)
+
+        assert len(spy_sig_make_new_plot) == 0  # assert not called
+
+
     def test_append_data(self):
         mw = self.mw
         sine_item = mw.lst.lst.get("sine")