[PATCH] testsuite: add simple test for --show-exports

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---
 testsuite/populate-modules.sh                 |  1 +
 .../test-modprobe/show-exports/correct.txt    |  1 +
 testsuite/test-modprobe.c                     | 22 +++++++++++++++++++
 3 files changed, 24 insertions(+)
 create mode 100644 testsuite/rootfs-pristine/test-modprobe/show-exports/correct.txt

diff --git a/testsuite/populate-modules.sh b/testsuite/populate-modules.sh
index b77e71e..ba68a69 100755
--- a/testsuite/populate-modules.sh
+++ b/testsuite/populate-modules.sh
@@ -39,6 +39,7 @@ map=(
     ["test-modprobe/show-depends/lib/modules/4.4.4/kernel/mod-loop-a.ko"]="mod-loop-a.ko"
     ["test-modprobe/show-depends/lib/modules/4.4.4/kernel/mod-loop-b.ko"]="mod-loop-b.ko"
     ["test-modprobe/show-depends/lib/modules/4.4.4/kernel/mod-simple.ko"]="mod-simple.ko"
+    ["test-modprobe/show-exports/mod-loop-a.ko"]="mod-loop-a.ko"
     ["test-modprobe/softdep-loop/lib/modules/4.4.4/kernel/mod-loop-a.ko"]="mod-loop-a.ko"
     ["test-modprobe/softdep-loop/lib/modules/4.4.4/kernel/mod-loop-b.ko"]="mod-loop-b.ko"
     ["test-modprobe/install-cmd-loop/lib/modules/4.4.4/kernel/mod-loop-a.ko"]="mod-loop-a.ko"
diff --git a/testsuite/rootfs-pristine/test-modprobe/show-exports/correct.txt b/testsuite/rootfs-pristine/test-modprobe/show-exports/correct.txt
new file mode 100644
index 0000000..bc2d045
--- /dev/null
+++ b/testsuite/rootfs-pristine/test-modprobe/show-exports/correct.txt
@@ -0,0 +1 @@
+0x00000000	printA
diff --git a/testsuite/test-modprobe.c b/testsuite/test-modprobe.c
index ee9d82d..52a6621 100644
--- a/testsuite/test-modprobe.c
+++ b/testsuite/test-modprobe.c
@@ -95,6 +95,28 @@ DEFINE_TEST(modprobe_show_alias_to_none,
 	);
 
 
+static noreturn int modprobe_show_exports(const struct test *t)
+{
+	const char *progname = ABS_TOP_BUILDDIR "/tools/modprobe";
+	const char *const args[] = {
+		progname,
+		"--show-exports", "--quiet", "/mod-loop-a.ko",
+		NULL,
+	};
+
+	test_spawn_prog(progname, args);
+	exit(EXIT_FAILURE);
+}
+DEFINE_TEST(modprobe_show_exports,
+	.description = "check if modprobe --show-depends doesn't explode with an alias to nothing",
+	.config = {
+		[TC_ROOTFS] = TESTSUITE_ROOTFS "test-modprobe/show-exports",
+	},
+	.output = {
+		.out = TESTSUITE_ROOTFS "test-modprobe/show-exports/correct.txt",
+	});
+
+
 static noreturn int modprobe_builtin(const struct test *t)
 {
 	const char *progname = ABS_TOP_BUILDDIR "/tools/modprobe";
-- 
2.19.1.1.g56c4683e68




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