SPEC-2996: rework the CAN modules tests

The CAN modules tests have lots of redundant code, let's add some
function for probing/removing modules.

Furthermore, some tests cannot work with busybox ip, I adds some tests
for it.

When reworking the tests, I have removed the "lsmod |grep can" tests
which was of no value.
I have also removed all sleep which was undocumented(probably for some
log flushing), if something need them I will re-add it with comment.

Bug-AGL: SPEC-2996
Change-Id: I2e8a109d799c58726d848814fd4c21a9fbd2eef5
Signed-off-by: Corentin LABBE <clabbe@baylibre.com>

1 files changed, 55 insertions, 89 deletions

diff --git a/common/scripts/test_can_modules.sh b/common/scripts/test_can_modules.sh
index 6fe4b02..9a5a6bd 100755
--- a/common/scripts/test_can_modules.sh
+++ b/common/scripts/test_can_modules.sh
@@ -15,111 +15,77 @@ if [ ! -e /sys/class/net/can1 ];then
 	lava-test-case canconfig_can0 --result skip
         exit 0
 fi
-lsmod | grep can
-if [ $? -eq 0 ];then
-	lava-test-case show_can_modules --result pass
-else
-	lava-test-case show_can_modules --result fail
-fi
-
-sleep 4
-
-rmmod can_raw
-if [ $? -eq 0 ];then
-	lava-test-case unload_can_raw_module --result pass
-else
-	lava-test-case unload_can_raw_module --result fail
-fi
-
-rmmod can
-if [ $? -eq 0 ];then
-	lava-test-case unload_can_module --result pass
-else
-	lava-test-case unload_can_module --result fail
-fi
 
-rmmod c_can_platform
+# remove module "$1"
+remove_module() {
+	lsmod | grep -q "^$1[[:space:]]"
+	if [ $? -ne 0 ];then
+		lava-test-case unload_$1_module --result skip
+		return 0
+	fi
+	rmmod $1
+	if [ $? -eq 0 ];then
+		lava-test-case unload_$1_module --result pass
+	else
+		lava-test-case unload_$1_module --result fail
+	fi
+}
+
+modprobe_module() {
+	modprobe $1
+	if [ $? -eq 0 ];then
+		lava-test-case load_$1_module --result pass
+	else
+		lava-test-case load_$1_module --result fail
+	fi
+}
+
+remove_module can_raw
+
+remove_module can
+
+remove_module c_can_platform
+
+remove_module c_can
+
+remove_module can_dev unload_can_dev_module
+
+ip -V | grep -q -i BusyBox
 if [ $? -eq 0 ];then
-	lava-test-case unload_c_can_platform_module --result pass
-else
-	lava-test-case unload_c_can_platform_module --result fail
-fi
-
-rmmod c_can
-if [ $? -eq 0 ];then
-	lava-test-case unload_c_can_module --result pass
-else
-	lava-test-case unload_c_can_module --result fail
-fi
-
-rmmod can_dev
-if [ $? -eq 0 ];then
-	lava-test-case unload_can_dev_module --result pass
-else
-	lava-test-case unload_can_dev_module --result fail
-fi
-
-sleep 5
-
-ip link set can0 type can bitrate 50000
-if [ $? -eq 0 ];then
-	lava-test-case canconfig_can0 --result fail
-else
-	lava-test-case canconfig_can0 --result pass
-fi
-
-
-sleep 5
-
-modprobe can
-if [ $? -eq 0 ];then
-	lava-test-case load_can_module --result pass
+	lava-test-case canconfig_can0 --result skip
 else
-	lava-test-case load_can_module --result fail
+	ip link set can0 type can bitrate 50000
+	if [ $? -eq 0 ];then
+		lava-test-case canconfig_can0 --result fail
+	else
+		lava-test-case canconfig_can0 --result pass
+	fi
 fi
 
-modprobe can_raw
-x=$?
-sleep 5
-if [ $x -eq 0 ];then
-	lava-test-case load_can_raw_module --result pass
-else
-	lava-test-case load_can_raw_module --result fail
-fi
-sleep 3
+modprobe_module can
 
-modprobe c_can
-if [ $? -eq 0 ];then
-	lava-test-case load_c_can_module --result pass
-else
-	lava-test-case load_c_can_module --result fail
-fi
+modprobe_module can_raw
 
-modprobe c_can_platform
-if [ $? -eq 0 ];then
-	lava-test-case load_c_can_platform_module --result pass
-else
-	lava-test-case load_c_can_platform_module --result fail
-fi
+modprobe_module c_can
 
-modprobe can_dev
-if [ $? -eq 0 ];then
-	lava-test-case load_can_dev_module --result pass
-else
-	lava-test-case load_can_dev_module --result fail
-fi
+modprobe_module c_can_platform
 
-sleep 5
+modprobe_module can_dev
 
 #Make sure always that the can interface is down before
 #starting the config step.
 ip link set can0 down
 
-ip link set can0 type can bitrate 50000
+ip -V | grep -q -i BusyBox
 if [ $? -eq 0 ];then
-	lava-test-case canconfig_can0 --result pass
+	lava-test-case canconfig_can0 --result skip
 else
-	lava-test-case canconfig_can0 --result fail
+	ip link set can0 type can bitrate 50000
+	if [ $? -eq 0 ];then
+		lava-test-case canconfig_can0 --result pass
+	else
+		lava-test-case canconfig_can0 --result fail
+	fi
 fi
 
 sleep 3