testsuite: add test to fail depmod on module loops

7 files changed, 28 insertions, 0 deletions

diff --git a/testsuite/rootfs-pristine/test-depmod/detect-loop/lib/modules/4.4.4/kernel/moduleA.ko b/testsuite/rootfs-pristine/test-depmod/detect-loop/lib/modules/4.4.4/kernel/moduleA.ko
new file mode 100644
index 0000000..c48a418
--- /dev/null
+++ b/testsuite/rootfs-pristine/test-depmod/detect-loop/lib/modules/4.4.4/kernel/moduleA.ko
diff --git a/testsuite/rootfs-pristine/test-depmod/detect-loop/lib/modules/4.4.4/kernel/moduleB.ko b/testsuite/rootfs-pristine/test-depmod/detect-loop/lib/modules/4.4.4/kernel/moduleB.ko
new file mode 100644
index 0000000..70dc122
--- /dev/null
+++ b/testsuite/rootfs-pristine/test-depmod/detect-loop/lib/modules/4.4.4/kernel/moduleB.ko
diff --git a/testsuite/rootfs-pristine/test-depmod/detect-loop/lib/modules/4.4.4/kernel/moduleC.ko b/testsuite/rootfs-pristine/test-depmod/detect-loop/lib/modules/4.4.4/kernel/moduleC.ko
new file mode 100644
index 0000000..ded3201
--- /dev/null
+++ b/testsuite/rootfs-pristine/test-depmod/detect-loop/lib/modules/4.4.4/kernel/moduleC.ko
diff --git a/testsuite/rootfs-pristine/test-depmod/detect-loop/lib/modules/4.4.4/kernel/moduleD.ko b/testsuite/rootfs-pristine/test-depmod/detect-loop/lib/modules/4.4.4/kernel/moduleD.ko
new file mode 100644
index 0000000..2c7273a
--- /dev/null
+++ b/testsuite/rootfs-pristine/test-depmod/detect-loop/lib/modules/4.4.4/kernel/moduleD.ko
diff --git a/testsuite/rootfs-pristine/test-depmod/detect-loop/lib/modules/4.4.4/kernel/moduleE.ko b/testsuite/rootfs-pristine/test-depmod/detect-loop/lib/modules/4.4.4/kernel/moduleE.ko
new file mode 100644
index 0000000..393e825
--- /dev/null
+++ b/testsuite/rootfs-pristine/test-depmod/detect-loop/lib/modules/4.4.4/kernel/moduleE.ko
diff --git a/testsuite/rootfs-pristine/test-depmod/detect-loop/lib/modules/4.4.4/modules.order b/testsuite/rootfs-pristine/test-depmod/detect-loop/lib/modules/4.4.4/modules.order
new file mode 100644
index 0000000..718a50e
--- /dev/null
+++ b/testsuite/rootfs-pristine/test-depmod/detect-loop/lib/modules/4.4.4/modules.order
@@ -0,0 +1,5 @@
+kernel//home/lucas/p/kmod/testsuite/module-playground/moduleA.ko
+kernel//home/lucas/p/kmod/testsuite/module-playground/moduleB.ko
+kernel//home/lucas/p/kmod/testsuite/module-playground/moduleC.ko
+kernel//home/lucas/p/kmod/testsuite/module-playground/moduleD.ko
+kernel//home/lucas/p/kmod/testsuite/module-playground/moduleE.ko
diff --git a/testsuite/test-depmod.c b/testsuite/test-depmod.c
index 5b67348..c5caec4 100644
--- a/testsuite/test-depmod.c
+++ b/testsuite/test-depmod.c
@@ -106,6 +106,28 @@ static DEFINE_TEST(depmod_search_order_same_prefix,
 		},
 	});
 
+#define DETECT_LOOP_ROOTFS TESTSUITE_ROOTFS "test-depmod/detect-loop"
+static noreturn int depmod_detect_loop(const struct test *t)
+{
+	const char *progname = ABS_TOP_BUILDDIR "/tools/depmod";
+	const char *const args[] = {
+		progname,
+		NULL,
+	};
+
+	test_spawn_prog(progname, args);
+	exit(EXIT_FAILURE);
+}
+static DEFINE_TEST(depmod_detect_loop,
+	.description = "check if depmod detects module loops correctly",
+	.config = {
+		[TC_UNAME_R] = "4.4.4",
+		[TC_ROOTFS] = DETECT_LOOP_ROOTFS,
+	},
+	.expected_fail = true,
+	);
+
+
 
 static const struct test *tests[] = {
 #ifdef ENABLE_ZLIB
@@ -113,6 +135,7 @@ static const struct test *tests[] = {
 #endif
 	&sdepmod_search_order_simple,
 	&sdepmod_search_order_same_prefix,
+	&sdepmod_detect_loop,
 	NULL,
 };