[dpdk-dev] [PATCH v2] test: add unit tests for metrics library

[Remy Horton]

Tested using the following patches also applied:

http://patches.dpdk.org/patch/42097/
http://patches.dpdk.org/patch/42098/
http://patches.dpdk.org/patch/42510/
http://patches.dpdk.org/patch/42971/

Two test-cases fail, but these in themselves ought not block this patch. 
Details below.

Acked-by: Remy Horton <remy.horton at intel.com>


> + /* Test Case to check failures when memzone init is not done */
> +static int
> +test_metrics_without_init(void)
> +{
> +	int err = 0;
> +	const uint64_t  value[REG_METRIC_COUNT] = {0};
> +	const char * const mnames[] = {
> +		"mean_bits_in", "mean_bits_out",
> +		"peak_bits_in", "peak_bits_out",
> +	};
> +
> +	/* Failure Test: Checking for memzone initialization */
> +	err = rte_metrics_reg_name(NULL);
> +	TEST_ASSERT(err == -EIO, "%s, %d", __func__, __LINE__);

Returns -EINVAL instead of -EIO due to NULL check coming before memzone 
check. Suggest using non-NULL value.


> +/* Test case to validate update a list of  metrics  */
> +static int
> +test_metrics_update_values(void)
> +{
[..]
> +	/* Failed Test: Invalid count size */
> +	err = rte_metrics_update_values(RTE_METRICS_GLOBAL,
> +			 KEY, &value[0], 0);
> +	TEST_ASSERT(err < 0, "%s, %d", __func__, __LINE__);

Test fails, fault with library: Silent handling length of zero. Will 
send patch.