[DTrace-devel] [PATCH v3 2/2] unittest/print: add test covering module-defined type

[Alan Maguire]

print() action tests do not cover module-defined types.  Add a test
using a module-defined type that has not changed recently.

struct tun_page was chosen since it is identical in UEK6U3 and upstream
and declared in tun.c which is a module on most distros.

Added tun to test/modules as suggested by Eugene.

Suggested-by: Nick Alcock <nick.alcock at oracle.com>
Signed-off-by: Alan Maguire <alan.maguire at oracle.com>
Reviewed-by: Eugene Loh <eugene.loh at oracle.com>

---
 test/modules                            |  1 +
 test/unittest/print/tst.print.modtype.d | 18 ++++++++++++++++++
 test/unittest/print/tst.print.modtype.r |  6 ++++++
 3 files changed, 25 insertions(+)
 create mode 100644 test/unittest/print/tst.print.modtype.d
 create mode 100644 test/unittest/print/tst.print.modtype.r

diff --git a/test/modules b/test/modules
index 53dc5544..0f01d6e0 100644
--- a/test/modules
+++ b/test/modules
@@ -2,3 +2,4 @@ ext4
 isofs
 nfs
 rds
+tun
diff --git a/test/unittest/print/tst.print.modtype.d b/test/unittest/print/tst.print.modtype.d
new file mode 100644
index 00000000..ed68b492
--- /dev/null
+++ b/test/unittest/print/tst.print.modtype.d
@@ -0,0 +1,18 @@
+/*
+ * Oracle Linux DTrace.
+ * Copyright (c) 2024, Oracle and/or its affiliates. All rights reserved.
+ * Licensed under the Universal Permissive License v 1.0 as shown at
+ * http://oss.oracle.com/licenses/upl.
+ */
+/* @@nosort */
+
+#pragma D option quiet
+
+BEGIN
+{
+	tun_page = (struct tun_page *)alloca(sizeof (struct tun_page));
+	tun_page->page = (struct page *)0xfeedfacefeedface;
+	tun_page->count = 123;
+	print(tun_page);
+	exit(0);
+}
diff --git a/test/unittest/print/tst.print.modtype.r b/test/unittest/print/tst.print.modtype.r
new file mode 100644
index 00000000..b9736607
--- /dev/null
+++ b/test/unittest/print/tst.print.modtype.r
@@ -0,0 +1,6 @@
+{ptr} = *
+                                            (struct tun_page) {
+                                             .page = (struct page *){ptr},
+                                             .count = (int)123,
+                                            }
+
-- 
2.39.3