testsuite: add tests to modprobe --show-depends

test 1 - check whether modprobe outputs the right thing when
using --show-depends is used with already loaded modules.

test 2 - check whether modprobe outputs the right thing when
using --show-depends with modules not loaded yet

5 files changed, 82 insertions, 4 deletions

diff --git a/Makefile.am b/Makefile.am
index c3eb225..e847c5d 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -173,7 +173,8 @@ testsuite_libtestsuite_la_DEPENDENCIES = testsuite/rootfs \
 testsuite_libtestsuite_la_CPPFLAGS = $(TESTSUITE_CPPFLAGS)
 
 TESTSUITE = testsuite/test-init testsuite/test-testsuite testsuite/test-loaded \
-	    testsuite/test-modinfo testsuite/test-alias testsuite/test-new-module
+	    testsuite/test-modinfo testsuite/test-alias testsuite/test-new-module \
+	    testsuite/test-modprobe
 check_PROGRAMS = $(TESTSUITE)
 TESTS = $(TESTSUITE)
 
@@ -189,6 +190,8 @@ testsuite_test_alias_LDADD = $(TESTSUITE_LDADD)
 testsuite_test_alias_CPPFLAGS = $(TESTSUITE_CPPFLAGS)
 testsuite_test_new_module_LDADD = $(TESTSUITE_LDADD)
 testsuite_test_new_module_CPPFLAGS = $(TESTSUITE_CPPFLAGS)
+testsuite_test_modprobe_LDADD = $(TESTSUITE_LDADD)
+testsuite_test_modprobe_CPPFLAGS = $(TESTSUITE_CPPFLAGS)
 
 DISTCHECK_CONFIGURE_FLAGS=--enable-gtk-doc
 
diff --git a/TODO b/TODO
index 6ab11f1..23d7c76 100644
--- a/TODO
+++ b/TODO
@@ -38,9 +38,6 @@ Features:
 
 * Stop using system() inside the library and use fork + exec instead
 
-* Add tests for --show-depends: we need to first trap calls to
-  kmod_module_get_path(), because it's printed to stdout/stderr.
-
 Known Bugs:
 ===========
 
diff --git a/testsuite/.gitignore b/testsuite/.gitignore
index aed91bb..7b71048 100644
--- a/testsuite/.gitignore
+++ b/testsuite/.gitignore
@@ -9,3 +9,4 @@
 /test-modinfo
 /test-new-module
 /test-testsuite
+/test-modprobe
diff --git a/testsuite/rootfs.tar.xz b/testsuite/rootfs.tar.xz
index fa92e20..08dbfc6 100644
--- a/testsuite/rootfs.tar.xz
+++ b/testsuite/rootfs.tar.xz
diff --git a/testsuite/test-modprobe.c b/testsuite/test-modprobe.c
new file mode 100644
index 0000000..cbcd157
--- /dev/null
+++ b/testsuite/test-modprobe.c
@@ -0,0 +1,77 @@
+/*
+ * Copyright (C) 2012  ProFUSION embedded systems
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stddef.h>
+#include <errno.h>
+#include <unistd.h>
+#include <inttypes.h>
+#include <string.h>
+
+#include "testsuite.h"
+
+static int modprobe_show_depends(const struct test *t)
+{
+	const char *progname = ABS_TOP_BUILDDIR "/tools/modprobe";
+	const char *const args[] = {
+		progname,
+		"--show-depends", "btusb",
+		NULL,
+	};
+
+	test_spawn_prog(progname, args);
+	exit(EXIT_FAILURE);
+}
+static DEFINE_TEST(modprobe_show_depends,
+	.description = "check if output for modprobe --show-depends is correct for loaded modules",
+	.config = {
+		[TC_UNAME_R] = "4.4.4",
+		[TC_ROOTFS] = TESTSUITE_ROOTFS "test-modprobe/show-depends",
+	},
+	.output = {
+		.stdout = TESTSUITE_ROOTFS "test-modprobe/show-depends/correct.txt",
+	});
+
+static int modprobe_show_depends2(const struct test *t)
+{
+	const char *progname = ABS_TOP_BUILDDIR "/tools/modprobe";
+	const char *const args[] = {
+		progname,
+		"--show-depends", "psmouse",
+		NULL,
+	};
+
+	test_spawn_prog(progname, args);
+	exit(EXIT_FAILURE);
+}
+static DEFINE_TEST(modprobe_show_depends2,
+	.description = "check if output for modprobe --show-depends is correct",
+	.config = {
+		[TC_UNAME_R] = "4.4.4",
+		[TC_ROOTFS] = TESTSUITE_ROOTFS "test-modprobe/show-depends",
+	},
+	.output = {
+		.stdout = TESTSUITE_ROOTFS "test-modprobe/show-depends/correct-psmouse.txt",
+	});
+static const struct test *tests[] = {
+	&smodprobe_show_depends,
+	&smodprobe_show_depends2,
+	NULL,
+};
+
+TESTSUITE_MAIN(tests);