Introduce QString unit-tests

This suite contains tests to assure that QString API works as expected.

To execute it you should have check installed and build QEMU with
check support enabled (--enable-check-utests) and then run:

$ ./check-qstring

Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>

Makefile

@@ -182,6 +182,7 @@ qemu-img-cmds.h: $(SRC_PATH)/qemu-img-cmds.hx
 	$(call quiet-command,sh $(SRC_PATH)/hxtool -h < $< > $@,"  GEN   $@")
 
 check-qint: check-qint.o qint.o qemu-malloc.o
+check-qstring: check-qstring.o qstring.o qemu-malloc.o
 
 clean:
 # avoid old build problems by removing potentially incorrect old files

check-qstring.c

@@ -0,0 +1,100 @@
+/*
+ * QString unit-tests.
+ *
+ * Copyright (C) 2009 Red Hat Inc.
+ *
+ * Authors:
+ *  Luiz Capitulino <lcapitulino@redhat.com>
+ */
+#include <check.h>
+
+#include "qstring.h"
+#include "qemu-common.h"
+
+/*
+ * Public Interface test-cases
+ *
+ * (with some violations to access 'private' data)
+ */
+
+START_TEST(qstring_from_str_test)
+{
+    QString *qstring;
+    const char *str = "QEMU";
+
+    qstring = qstring_from_str(str);
+    fail_unless(qstring != NULL);
+    fail_unless(qstring->base.refcnt == 1);
+    fail_unless(strcmp(str, qstring->string) == 0);
+    fail_unless(qobject_type(QOBJECT(qstring)) == QTYPE_QSTRING);
+
+    // destroy doesn't exit yet
+    qemu_free(qstring->string);
+    qemu_free(qstring);
+}
+END_TEST
+
+START_TEST(qstring_destroy_test)
+{
+    QString *qstring = qstring_from_str("destroy test");
+    QDECREF(qstring);
+}
+END_TEST
+
+START_TEST(qstring_get_str_test)
+{
+    QString *qstring;
+    const char *ret_str;
+    const char *str = "QEMU/KVM";
+
+    qstring = qstring_from_str(str);
+    ret_str = qstring_get_str(qstring);
+    fail_unless(strcmp(ret_str, str) == 0);
+
+    QDECREF(qstring);
+}
+END_TEST
+
+START_TEST(qobject_to_qstring_test)
+{
+    QString *qstring;
+
+    qstring = qstring_from_str("foo");
+    fail_unless(qobject_to_qstring(QOBJECT(qstring)) == qstring);
+
+    QDECREF(qstring);
+}
+END_TEST
+
+static Suite *qstring_suite(void)
+{
+    Suite *s;
+    TCase *qstring_public_tcase;
+
+    s = suite_create("QString test-suite");
+
+    qstring_public_tcase = tcase_create("Public Interface");
+    suite_add_tcase(s, qstring_public_tcase);
+    tcase_add_test(qstring_public_tcase, qstring_from_str_test);
+    tcase_add_test(qstring_public_tcase, qstring_destroy_test);
+    tcase_add_test(qstring_public_tcase, qstring_get_str_test);
+    tcase_add_test(qstring_public_tcase, qobject_to_qstring_test);
+
+    return s;
+}
+
+int main(void)
+{
+	int nf;
+	Suite *s;
+	SRunner *sr;
+
+	s = qstring_suite();
+	sr = srunner_create(s);
+
+	srunner_run_all(sr, CK_NORMAL);
+	nf = srunner_ntests_failed(sr);
+	srunner_free(sr);
+
+	return (nf == 0) ? EXIT_SUCCESS : EXIT_FAILURE;
+}

configure

@@ -1927,7 +1927,7 @@ if test `expr "$target_list" : ".*softmmu.*"` != 0 ; then
   if [ "$linux" = "yes" ] ; then
       tools="qemu-nbd\$(EXESUF) qemu-io\$(EXESUF) $tools"
     if [ "$check_utests" = "yes" ]; then
-      tools="check-qint $tools"
+      tools="check-qint check-qstring $tools"
     fi
   fi
 fi