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Increase tolerances for imprecise time.

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This commit is contained in:
Nick Mathewson 2018-04-13 10:37:06 -04:00
parent 3f514fe3b1
commit 787bafc0f9
1 changed files with 9 additions and 8 deletions
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17
src/test/test_bwmgt.c
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@ -125,6 +125,7 @@ test_bwmgt_token_buf_refill(void *arg)
token_bucket_t b;
const uint32_t SEC =
(uint32_t)monotime_msec_to_approx_coarse_stamp_units(1000);
printf("%d\n", (int)SEC);
token_bucket_init(&b, 16*KB, 64*KB, START_TS);
/* Make the buffer much emptier, then let one second elapse. */
@ -163,25 +164,25 @@ test_bwmgt_token_buf_refill(void *arg)
tt_int_op(0, OP_EQ, b.read_bucket);
tt_int_op(1, OP_EQ, token_bucket_refill(&b, START_TS + SEC*3/2 + SEC*61));
tt_int_op(0, OP_EQ, token_bucket_refill(&b, START_TS + SEC*3/2 + SEC*62));
tt_int_op(b.read_bucket, OP_GT, 32*KB-300);
tt_int_op(b.read_bucket, OP_LT, 32*KB+300);
tt_int_op(b.read_bucket, OP_GT, 32*KB-400);
tt_int_op(b.read_bucket, OP_LT, 32*KB+400);
/* Underflow the bucket, make sure we detect when it has tokens again. */
tt_int_op(1, OP_EQ, token_bucket_dec_read(&b, b.read_bucket+16*KB));
tt_int_op(-16*KB, OP_EQ, b.read_bucket);
// half a second passes...
tt_int_op(0, OP_EQ, token_bucket_refill(&b, START_TS + SEC*64));
tt_int_op(b.read_bucket, OP_GT, -8*KB-200);
tt_int_op(b.read_bucket, OP_LT, -8*KB+200);
tt_int_op(b.read_bucket, OP_GT, -8*KB-300);
tt_int_op(b.read_bucket, OP_LT, -8*KB+300);
// a second passes
tt_int_op(1, OP_EQ, token_bucket_refill(&b, START_TS + SEC*65));
tt_int_op(b.read_bucket, OP_GT, 8*KB-200);
tt_int_op(b.read_bucket, OP_LT, 8*KB+200);
tt_int_op(b.read_bucket, OP_GT, 8*KB-400);
tt_int_op(b.read_bucket, OP_LT, 8*KB+400);
// We step a second backwards, and nothing happens.
tt_int_op(0, OP_EQ, token_bucket_refill(&b, START_TS + SEC*64));
tt_int_op(b.read_bucket, OP_GT, 8*KB-200);
tt_int_op(b.read_bucket, OP_LT, 8*KB+200);
tt_int_op(b.read_bucket, OP_GT, 8*KB-400);
tt_int_op(b.read_bucket, OP_LT, 8*KB+400);
// A ridiculous amount of time passes.
tt_int_op(0, OP_EQ, token_bucket_refill(&b, INT32_MAX));