Add some initial tests for SLIST and STAILQ macros

MFC after: 1 week
Sponsored by: EMC / Isilon Storage Division

1 files changed, 237 insertions, 0 deletions

diff --git a/lib/libc/tests/sys/queue_test.c b/lib/libc/tests/sys/queue_test.c
new file mode 100644
index 0000000..2405e3a
--- /dev/null
+++ b/lib/libc/tests/sys/queue_test.c
@@ -0,0 +1,237 @@
+/*-
+ * Copyright (c) 2015 EMC Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include <sys/queue.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+#include <atf-c.h>
+
+ATF_TC(slist_test);
+ATF_TC_HEAD(slist_test, tc)
+{
+
+	atf_tc_set_md_var(tc, "descr", "SLIST macro feature tests");
+}
+
+ATF_TC_BODY(slist_test, tc)
+{
+	SLIST_HEAD(stailhead, entry) head = SLIST_HEAD_INITIALIZER(head);
+	struct entry {
+		SLIST_ENTRY(entry) entries;
+		int i;
+	} *n1, *n2, *n3, *np;
+	int i, j, length;
+
+	SLIST_INIT(&head);
+
+	printf("Ensuring SLIST_EMPTY works\n");
+
+	ATF_REQUIRE(SLIST_EMPTY(&head));
+
+	i = length = 0;
+
+	SLIST_FOREACH(np, &head, entries) {
+		length++;
+	}
+	ATF_REQUIRE_EQ(length, 0);
+
+	printf("Ensuring SLIST_INSERT_HEAD works\n");
+
+	n1 = malloc(sizeof(struct entry));
+	ATF_REQUIRE(n1 != NULL);
+	n1->i = i++;
+
+	SLIST_INSERT_HEAD(&head, n1, entries);
+
+	printf("Ensuring SLIST_FIRST returns element 1\n");
+	ATF_REQUIRE_EQ(SLIST_FIRST(&head), n1);
+
+	j = length = 0;
+	SLIST_FOREACH(np, &head, entries) {
+		ATF_REQUIRE_EQ_MSG(np->i, j,
+		    "%d (entry counter) != %d (counter)", np->i, j);
+		j++;
+		length++;
+	}
+	ATF_REQUIRE_EQ(length, 1);
+
+	printf("Ensuring SLIST_INSERT_AFTER works\n");
+
+	n2 = malloc(sizeof(struct entry));
+	ATF_REQUIRE(n2 != NULL);
+	n2->i = i++;
+
+	SLIST_INSERT_AFTER(n1, n2, entries);
+
+	n3 = malloc(sizeof(struct entry));
+	ATF_REQUIRE(n3 != NULL);
+	n3->i = i++;
+
+	SLIST_INSERT_AFTER(n2, n3, entries);
+
+	j = length = 0;
+	SLIST_FOREACH(np, &head, entries) {
+		ATF_REQUIRE_EQ_MSG(np->i, j,
+		    "%d (entry counter) != %d (counter)", np->i, j);
+		j++;
+		length++;
+	}
+	ATF_REQUIRE_EQ(length, 3);
+
+	printf("Ensuring SLIST_REMOVE_HEAD works\n");
+
+	printf("Ensuring SLIST_FIRST returns element 1\n");
+	ATF_REQUIRE_EQ(SLIST_FIRST(&head), n1);
+
+	SLIST_REMOVE_HEAD(&head, entries);
+
+	printf("Ensuring SLIST_FIRST now returns element 2\n");
+	ATF_REQUIRE_EQ(SLIST_FIRST(&head), n2);
+
+	j = 1; /* Starting point's 1 this time */
+	length = 0;
+	SLIST_FOREACH(np, &head, entries) {
+		ATF_REQUIRE_EQ_MSG(np->i, j,
+		    "%d (entry counter) != %d (counter)", np->i, j);
+		j++;
+		length++;
+	}
+	ATF_REQUIRE_EQ(length, 2);
+
+	printf("Ensuring SLIST_REMOVE_AFTER works by removing the tail\n");
+
+	SLIST_REMOVE_AFTER(n2, entries);
+
+	j = 1; /* Starting point's 1 this time */
+	length = 0;
+	SLIST_FOREACH(np, &head, entries) {
+		ATF_REQUIRE_EQ_MSG(np->i, j,
+		    "%d (entry counter) != %d (counter)", np->i, j);
+		j++;
+		length++;
+	}
+	ATF_REQUIRE_EQ(length, 1);
+
+	printf("Ensuring SLIST_FIRST returns element 2\n");
+	ATF_REQUIRE_EQ(SLIST_FIRST(&head), n2);
+
+}
+
+ATF_TC(stailq_test);
+ATF_TC_HEAD(stailq_test, tc)
+{
+
+	atf_tc_set_md_var(tc, "descr", "STAILQ macro feature tests");
+}
+
+ATF_TC_BODY(stailq_test, tc)
+{
+	STAILQ_HEAD(stailhead, entry) head = STAILQ_HEAD_INITIALIZER(head);
+	struct entry {
+		STAILQ_ENTRY(entry) entries;
+		int i;
+	} *n1, *n2, *n3, *np;
+	int i, j, length;
+
+	printf("Ensuring empty STAILQs are treated properly\n");
+	STAILQ_INIT(&head);
+	ATF_REQUIRE(STAILQ_EMPTY(&head));
+
+	i = length = 0;
+
+	STAILQ_FOREACH(np, &head, entries) {
+		length++;
+	}
+	ATF_REQUIRE_EQ(length, 0);
+
+	printf("Ensuring STAILQ_INSERT_HEAD works\n");
+
+	n1 = malloc(sizeof(struct entry));
+	ATF_REQUIRE(n1 != NULL);
+	n1->i = i++;
+
+	STAILQ_INSERT_HEAD(&head, n1, entries);
+
+	j = length = 0;
+	STAILQ_FOREACH(np, &head, entries) {
+		ATF_REQUIRE_EQ_MSG(np->i, j,
+		    "%d (entry counter) != %d (counter)", np->i, j);
+		j++;
+		length++;
+	}
+	ATF_REQUIRE_EQ(length, 1);
+
+	printf("Ensuring STAILQ_INSERT_TAIL works\n");
+
+	n2 = malloc(sizeof(struct entry));
+	ATF_REQUIRE(n2 != NULL);
+	n2->i = i++;
+
+	STAILQ_INSERT_TAIL(&head, n2, entries);
+
+	n3 = malloc(sizeof(struct entry));
+	ATF_REQUIRE(n3 != NULL);
+	n3->i = i++;
+
+	STAILQ_INSERT_TAIL(&head, n3, entries);
+
+	j = length = 0;
+	STAILQ_FOREACH(np, &head, entries) {
+		ATF_REQUIRE_EQ_MSG(np->i, j,
+		    "%d (entry counter) != %d (counter)", np->i, j);
+		j++;
+		length++;
+	}
+	ATF_REQUIRE_EQ(length, 3);
+
+	printf("Ensuring STAILQ_REMOVE_HEAD works\n");
+
+	STAILQ_REMOVE_HEAD(&head, entries);
+
+	j = 1; /* Starting point's 1 this time */
+	length = 0;
+	STAILQ_FOREACH(np, &head, entries) {
+		ATF_REQUIRE_EQ_MSG(np->i, j,
+		    "%d (entry counter) != %d (counter)", np->i, j);
+		j++;
+		length++;
+	}
+	ATF_REQUIRE_EQ(length, 2);
+
+}
+
+ATF_TP_ADD_TCS(tp)
+{
+
+	ATF_TP_ADD_TC(tp, slist_test);
+	ATF_TP_ADD_TC(tp, stailq_test);
+
+	return (atf_no_error());
+}