commit aed877c53b5b8760b3fdb3605a212188c60f2eb3
author Markus Armbruster <armbru@redhat.com> Thu Aug 23 18:39:33 2018 +0200
committer Markus Armbruster <armbru@redhat.com> Fri Aug 24 20:26:37 2018 +0200
tree 852e96bdc65fe0ef631e6323806e024944fad4f1
parent d93bb9d5c34c1b4ed97bf824e6459b5516db94f6

qmp-test: Cover syntax and lexical errors

qmp-test neglects to cover QMP input that isn't valid JSON.  libqtest
doesn't let us send such input.  Add qtest_qmp_send_raw() for this
purpose, and put it to use in qmp-test.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <20180823164025.12553-7-armbru@redhat.com>
[Commit message typo fixed]

tests/qmp-test.c

diff --git a/tests/qmp-test.c b/tests/qmp-test.c
index dbc8f6c..1715319 100644
--- a/tests/qmp-test.c
+++ b/tests/qmp-test.c
@@ -1,7 +1,7 @@
 /*
  * QMP protocol test cases
  *
- * Copyright (c) 2017 Red Hat Inc.
+ * Copyright (c) 2017-2018 Red Hat Inc.
  *
  * Authors:
  *  Markus Armbruster <armbru@redhat.com>
@@ -42,10 +42,49 @@
     visit_free(v);
 }
 
+static bool recovered(QTestState *qts)
+{
+    QDict *resp;
+    bool ret;
+
+    resp = qtest_qmp(qts, "{ 'execute': 'no-such-cmd' }");
+    ret = !strcmp(get_error_class(resp), "CommandNotFound");
+    qobject_unref(resp);
+    return ret;
+}
+
 static void test_malformed(QTestState *qts)
 {
     QDict *resp;
 
+    /* syntax error */
+    qtest_qmp_send_raw(qts, "{]\n");
+    resp = qtest_qmp_receive(qts);
+    g_assert_cmpstr(get_error_class(resp), ==, "GenericError");
+    qobject_unref(resp);
+    g_assert(recovered(qts));
+
+    /* lexical error: impossible byte outside string */
+    qtest_qmp_send_raw(qts, "{\xFF");
+    resp = qtest_qmp_receive(qts);
+    g_assert_cmpstr(get_error_class(resp), ==, "GenericError");
+    qobject_unref(resp);
+    g_assert(recovered(qts));
+
+    /* lexical error: impossible byte in string */
+    qtest_qmp_send_raw(qts, "{'bad \xFF");
+    resp = qtest_qmp_receive(qts);
+    g_assert_cmpstr(get_error_class(resp), ==, "GenericError");
+    qobject_unref(resp);
+    g_assert(recovered(qts));
+
+    /* lexical error: interpolation */
+    qtest_qmp_send_raw(qts, "%%p\n");
+    resp = qtest_qmp_receive(qts);
+    g_assert_cmpstr(get_error_class(resp), ==, "GenericError");
+    qobject_unref(resp);
+    g_assert(recovered(qts));
+
     /* Not even a dictionary */
     resp = qtest_qmp(qts, "null");
     g_assert_cmpstr(get_error_class(resp), ==, "GenericError");