Naut/tests/unit/test_pipeline.c

#include "naut/pipeline.h"
#include "test.h"

int main(void) {
    naut_pipeline pipeline;
    naut_pipeline_init(&pipeline, NAUT_BLOCK, 4, 1024, 32);
    CHECK_EQ(naut_pipeline_depth(&pipeline), 32);

    /* 16 KiB every 100 us with 20 ms RTT is about 164 MB/s and a 200-block
     * BDP. Repeated samples should grow the window substantially. */
    double now = 1.0;
    for (int i = 0; i < 100; i++) {
        now += 0.0001;
        naut_pipeline_on_block(&pipeline, NAUT_BLOCK, now - 0.020, now);
    }
    CHECK(naut_pipeline_depth(&pipeline) > 128);
    CHECK(naut_pipeline_depth(&pipeline) <= 1024);

    uint32_t high = naut_pipeline_depth(&pipeline);
    for (int i = 0; i < 100; i++) {
        now += 0.050;
        naut_pipeline_on_block(&pipeline, NAUT_BLOCK, now - 0.005, now);
    }
    CHECK(naut_pipeline_depth(&pipeline) < high);
    CHECK(naut_pipeline_depth(&pipeline) >= 4);

    naut_pipeline_init(&pipeline, 0, 0, 0, 0);
    CHECK_EQ(naut_pipeline_depth(&pipeline), 1);
    TEST_MAIN_END();
}