Added test to ensure chat sessions cleared on cmd_disconnect

tests/test_cmd_disconnect.c

@@ -0,0 +1,34 @@
+#include <stdarg.h>
+#include <stddef.h>
+#include <setjmp.h>
+#include <cmocka.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "chat_session.h"
+#include "command/commands.h"
+#include "xmpp/xmpp.h"
+#include "roster_list.h"
+
+#include "ui/stub_ui.h"
+
+void clears_chat_sessions(void **state)
+{
+    CommandHelp *help = malloc(sizeof(CommandHelp));
+
+    chat_sessions_init();
+    chat_session_on_recipient_activity("bob@server.org", "laptop");
+    roster_init();
+
+    will_return(jabber_get_connection_status, JABBER_CONNECTED);
+    will_return(jabber_get_fulljid, "myjid@myserver.com");
+    expect_any_cons_show();
+
+    gboolean result = cmd_disconnect(NULL, *help);
+
+    assert_true(result);
+
+    ChatSession *session = chat_session_get("bob@server.org");
+    assert_null(session);
+    free(help);
+}