Re: [dpdk-dev] [PATCH v3] test: fix missing NULL pointer checks

[Neil Horman <nhorman@tuxdriver.com>]

On Tue, Jan 27, 2015 at 04:44:53PM +0100, Daniel Mrzyglod wrote:
> In test_sched, we are missing NULL pointer checks after create_mempool()
> and rte_pktmbuf_alloc(). Add in these checks using TEST_ASSERT_NOT_NULL macros.
> 
> VERIFY macro was removed and replaced by standard test ASSERTS from "test.h" header.
> This provides additional information to track when the failure occured.
> 
> v3 changes:
> - remove VERIFY macro
> - fix spelling error.
> - change unproper comment
> 
> v2 changes:
> - Replace all VERIFY macros instances by proper TEST_ASSERT* macros.
> - fix description
> 
> v1 changes:
> - first iteration of patch using VERIFY macro.
> 
> Signed-off-by: Daniel Mrzyglod <danielx.t.mrzyglod@intel.com>
> ---
>  app/test/test_sched.c | 39 ++++++++++++++++++---------------------
>  1 file changed, 18 insertions(+), 21 deletions(-)
> 
> diff --git a/app/test/test_sched.c b/app/test/test_sched.c
> index c957d80..60c62de 100644
> --- a/app/test/test_sched.c
> +++ b/app/test/test_sched.c
> @@ -46,13 +46,6 @@
>  #include <rte_sched.h>
>  
>  
> -#define VERIFY(exp,fmt,args...)                    	                \
> -		if (!(exp)) {                                               \
> -			printf(fmt, ##args);                                    \
> -			return -1;                                              \
> -		}
> -
> -
>  #define SUBPORT 	0
>  #define PIPE 		1
>  #define TC 			2
> @@ -166,48 +159,49 @@ test_sched(void)
>  	int err;
>  
>  	mp = create_mempool();
> +	TEST_ASSERT_NOT_NULL(mp, "Error creating mempool\n");
>  
>  	port_param.socket = 0;
>  	port_param.rate = (uint64_t) 10000 * 1000 * 1000 / 8;
>  
>  	port = rte_sched_port_config(&port_param);
> -	VERIFY(port != NULL, "Error config sched port\n");
> -
> +	TEST_ASSERT_NOT_NULL(port, "Error config sched port\n");
>  
>  	err = rte_sched_subport_config(port, SUBPORT, subport_param);
> -	VERIFY(err == 0, "Error config sched, err=%d\n", err);
> +	TEST_ASSERT_SUCCESS(err, "Error config sched, err=%d\n", err);
>  
>  	for (pipe = 0; pipe < port_param.n_pipes_per_subport; pipe ++) {
>  		err = rte_sched_pipe_config(port, SUBPORT, pipe, 0);
> -		VERIFY(err == 0, "Error config sched pipe %u, err=%d\n", pipe, err);
> +		TEST_ASSERT_SUCCESS(err, "Error config sched pipe %u, err=%d\n", pipe, err);
>  	}
>  
>  	for (i = 0; i < 10; i++) {
>  		in_mbufs[i] = rte_pktmbuf_alloc(mp);
> +		TEST_ASSERT_NOT_NULL(in_mbufs[i], "Packet allocation failed\n");
>  		prepare_pkt(in_mbufs[i]);
>  	}
>  
>  
>  	err = rte_sched_port_enqueue(port, in_mbufs, 10);
> -	VERIFY(err == 10, "Wrong enqueue, err=%d\n", err);
> +	TEST_ASSERT_EQUAL(err, 10, "Wrong enqueue, err=%d\n", err);
>  
>  	err = rte_sched_port_dequeue(port, out_mbufs, 10);
> -	VERIFY(err == 10, "Wrong dequeue, err=%d\n", err);
> +	TEST_ASSERT_EQUAL(err, 10, "Wrong dequeue, err=%d\n", err);
>  
>  	for (i = 0; i < 10; i++) {
>  		enum rte_meter_color color;
>  		uint32_t subport, traffic_class, queue;
>  
>  		color = rte_sched_port_pkt_read_color(out_mbufs[i]);
> -		VERIFY(color == e_RTE_METER_YELLOW, "Wrong color\n");
> +		TEST_ASSERT_EQUAL(color, e_RTE_METER_YELLOW, "Wrong color\n");
>  
>  		rte_sched_port_pkt_read_tree_path(out_mbufs[i],
>  				&subport, &pipe, &traffic_class, &queue);
>  
> -		VERIFY(subport == SUBPORT, "Wrong subport\n");
> -		VERIFY(pipe == PIPE, "Wrong pipe\n");
> -		VERIFY(traffic_class == TC, "Wrong traffic_class\n");
> -		VERIFY(queue == QUEUE, "Wrong queue\n");
> +		TEST_ASSERT_EQUAL(subport, SUBPORT, "Wrong subport\n");
> +		TEST_ASSERT_EQUAL(pipe, PIPE, "Wrong pipe\n");
> +		TEST_ASSERT_EQUAL(traffic_class, TC, "Wrong traffic_class\n");
> +		TEST_ASSERT_EQUAL(queue, QUEUE, "Wrong queue\n");
>  
>  	}
>  
> @@ -215,12 +209,15 @@ test_sched(void)
>  	struct rte_sched_subport_stats subport_stats;
>  	uint32_t tc_ov;
>  	rte_sched_subport_read_stats(port, SUBPORT, &subport_stats, &tc_ov);
> -	//VERIFY(subport_stats.n_pkts_tc[TC-1] == 10, "Wrong subport stats\n");
> -
> +#if 0
> +	TEST_ASSERT_EQUAL(subport_stats.n_pkts_tc[TC-1], 10, "Wrong subport stats\n");
> +#endif
>  	struct rte_sched_queue_stats queue_stats;
>  	uint16_t qlen;
>  	rte_sched_queue_read_stats(port, QUEUE, &queue_stats, &qlen);
> -	//VERIFY(queue_stats.n_pkts == 10, "Wrong queue stats\n");
> +#if 0
> +	TEST_ASSERT_EQUAL(queue_stats.n_pkts, 10, "Wrong queue stats\n");
> +#endif
>  
>  	rte_sched_port_free(port);
>  
> -- 
> 2.1.0
> 
> 
These TEST_ASSERT macros are no better than the VERIFY macro, they contain
exaxtly the same return issue that I outlined in my first post on the subject.
Neil