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platform/chrome: cros_ec_proto: add Kunit test for cros_ec_map_error()

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cros_ec_cmd_xfer_status() is the only exported function that calls
static function cros_ec_map_error().

Add Kunit test for cros_ec_map_error() through calling
cros_ec_cmd_xfer_status().

Signed-off-by: Tzung-Bi Shih <tzungbi@kernel.org>
Reviewed-by: Guenter Roeck <groeck@chromium.org>
Link: https://lore.kernel.org/r/20220622041040.202737-3-tzungbi@kernel.org
This commit is contained in:
Tzung-Bi Shih 2022-06-22 04:10:35 +00:00
parent 74bed42fd5
commit 1242688fc2
1 changed files with 49 additions and 0 deletions
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49
drivers/platform/chrome/cros_ec_proto_test.c
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@ -2004,6 +2004,54 @@ static void cros_ec_proto_test_cmd_xfer_status_xfer_error(struct kunit *test)
KUNIT_EXPECT_EQ(test, ret, -EPROTO);
}
static void cros_ec_proto_test_cmd_xfer_status_return_error(struct kunit *test)
{
struct cros_ec_proto_test_priv *priv = test->priv;
struct cros_ec_device *ec_dev = &priv->ec_dev;
struct ec_xfer_mock *mock;
int ret, i;
struct cros_ec_command msg;
static const int map[] = {
[EC_RES_SUCCESS] = 0,
[EC_RES_INVALID_COMMAND] = -EOPNOTSUPP,
[EC_RES_ERROR] = -EIO,
[EC_RES_INVALID_PARAM] = -EINVAL,
[EC_RES_ACCESS_DENIED] = -EACCES,
[EC_RES_INVALID_RESPONSE] = -EPROTO,
[EC_RES_INVALID_VERSION] = -ENOPROTOOPT,
[EC_RES_INVALID_CHECKSUM] = -EBADMSG,
/*
* EC_RES_IN_PROGRESS is special because cros_ec_send_command() has extra logic to
* handle it. Note that default cros_kunit_ec_xfer_mock_default_ret == 0 thus
* cros_ec_xfer_command() in cros_ec_wait_until_complete() returns 0. As a result,
* it returns -EPROTO without calling cros_ec_map_error().
*/
[EC_RES_IN_PROGRESS] = -EPROTO,
[EC_RES_UNAVAILABLE] = -ENODATA,
[EC_RES_TIMEOUT] = -ETIMEDOUT,
[EC_RES_OVERFLOW] = -EOVERFLOW,
[EC_RES_INVALID_HEADER] = -EBADR,
[EC_RES_REQUEST_TRUNCATED] = -EBADR,
[EC_RES_RESPONSE_TOO_BIG] = -EFBIG,
[EC_RES_BUS_ERROR] = -EFAULT,
[EC_RES_BUSY] = -EBUSY,
[EC_RES_INVALID_HEADER_VERSION] = -EBADMSG,
[EC_RES_INVALID_HEADER_CRC] = -EBADMSG,
[EC_RES_INVALID_DATA_CRC] = -EBADMSG,
[EC_RES_DUP_UNAVAILABLE] = -ENODATA,
};
memset(&msg, 0, sizeof(msg));
for (i = 0; i < ARRAY_SIZE(map); ++i) {
mock = cros_kunit_ec_xfer_mock_addx(test, 0, i, 0);
KUNIT_ASSERT_PTR_NE(test, mock, NULL);
ret = cros_ec_cmd_xfer_status(ec_dev, &msg);
KUNIT_EXPECT_EQ(test, ret, map[i]);
}
}
static void cros_ec_proto_test_release(struct device *dev)
{
}
@ -2086,6 +2134,7 @@ static struct kunit_case cros_ec_proto_test_cases[] = {
KUNIT_CASE(cros_ec_proto_test_cmd_xfer_in_progress_return0),
KUNIT_CASE(cros_ec_proto_test_cmd_xfer_status_normal),
KUNIT_CASE(cros_ec_proto_test_cmd_xfer_status_xfer_error),
KUNIT_CASE(cros_ec_proto_test_cmd_xfer_status_return_error),
{}
};