Added test to ensure chat sessions cleared on cmd_disconnect

tests/ui/stub_ui.c

@@ -19,6 +19,12 @@ expect_cons_show(char *expected)
     expect_string(cons_show, output, expected);
 }
 
+void
+expect_any_cons_show(void)
+{
+    expect_any(cons_show, output);
+}
+
 void
 expect_cons_show_error(char *expected)
 {

tests/ui/stub_ui.h

@@ -1,4 +1,5 @@
 void expect_cons_show(char *expected);
+void expect_any_cons_show(void);
 void expect_cons_show_error(char *expected);
 void expect_ui_current_print_line(char *message);
 void expect_ui_current_print_formatted_line(char show_char, int attrs, char *message);