diff options
Diffstat (limited to 'src/spdk/test/unit/include/spdk/histogram_data.h/histogram_ut.c')
| -rw-r--r-- | src/spdk/test/unit/include/spdk/histogram_data.h/histogram_ut.c | 161 |
1 files changed, 161 insertions, 0 deletions
diff --git a/src/spdk/test/unit/include/spdk/histogram_data.h/histogram_ut.c b/src/spdk/test/unit/include/spdk/histogram_data.h/histogram_ut.c new file mode 100644 index 000000000..45b81d594 --- /dev/null +++ b/src/spdk/test/unit/include/spdk/histogram_data.h/histogram_ut.c @@ -0,0 +1,161 @@ +/*- + * BSD LICENSE + * + * Copyright (c) Intel Corporation. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * * Neither the name of Intel Corporation nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include "spdk_cunit.h" + +#include "spdk/histogram_data.h" +#include "spdk/util.h" + +uint64_t g_values[] = { + 1, + 10, + 1000, + 50000, + (1ULL << 63), + UINT64_MAX +}; + +uint64_t *g_values_end = &g_values[SPDK_COUNTOF(g_values)]; +uint64_t g_total; +uint64_t g_number_of_merged_histograms; + +static void +check_values(void *ctx, uint64_t start, uint64_t end, uint64_t count, + uint64_t total, uint64_t so_far) +{ + uint64_t **values = ctx; + + if (count == 0) { + return; + } + + CU_ASSERT(so_far == (g_total + count)); + + /* + * The bucket for this iteration does not include end, but + * subtract one anyways to account for the last bucket + * which will have end = 0x0 (UINT64_MAX + 1). + */ + end--; + + while (1) { + CU_ASSERT(**values >= start); + /* + * We subtracted one from end above, so it's OK here for + * **values to equal end. + */ + CU_ASSERT(**values <= end); + g_total += g_number_of_merged_histograms; + count -= g_number_of_merged_histograms; + (*values)++; + if (*values == g_values_end || **values > end) { + break; + } + } + CU_ASSERT(count == 0); +} + +static void +histogram_test(void) +{ + struct spdk_histogram_data *h; + uint64_t *values = g_values; + uint32_t i; + + h = spdk_histogram_data_alloc(); + + for (i = 0; i < SPDK_COUNTOF(g_values); i++) { + spdk_histogram_data_tally(h, g_values[i]); + } + g_total = 0; + g_number_of_merged_histograms = 1; + spdk_histogram_data_iterate(h, check_values, &values); + + spdk_histogram_data_free(h); +} + +static void +histogram_merge(void) +{ + struct spdk_histogram_data *h1, *h2; + uint64_t *values = g_values; + uint32_t i; + + h1 = spdk_histogram_data_alloc(); + h2 = spdk_histogram_data_alloc(); + + for (i = 0; i < SPDK_COUNTOF(g_values); i++) { + spdk_histogram_data_tally(h1, g_values[i]); + spdk_histogram_data_tally(h2, g_values[i]); + } + + spdk_histogram_data_merge(h1, h2); + + g_total = 0; + g_number_of_merged_histograms = 2; + spdk_histogram_data_iterate(h1, check_values, &values); + + spdk_histogram_data_free(h1); + spdk_histogram_data_free(h2); +} + +int +main(int argc, char **argv) +{ + CU_pSuite suite = NULL; + unsigned int num_failures; + + if (CU_initialize_registry() != CUE_SUCCESS) { + return CU_get_error(); + } + + suite = CU_add_suite("histogram", NULL, NULL); + if (suite == NULL) { + CU_cleanup_registry(); + return CU_get_error(); + } + + if ( + CU_add_test(suite, "histogram_test", histogram_test) == NULL || + CU_add_test(suite, "histogram_merge", histogram_merge) == NULL + ) { + CU_cleanup_registry(); + return CU_get_error(); + } + + CU_basic_set_mode(CU_BRM_VERBOSE); + CU_basic_run_tests(); + num_failures = CU_get_number_of_failures(); + CU_cleanup_registry(); + return num_failures; +} |