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Fix tests to use the new design.

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- All histogram tests were using start_usec/range_usec. We now manually specify
  the edges.
- Also add a test for histogram_get_bin_upper_bound().
This commit is contained in:
George Kadianakis 2019-02-15 17:27:09 +02:00
parent 80abe4170d
commit 3093d8afbe
2 changed files with 87 additions and 43 deletions
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23
src/core/or/circuitpadding.c
View File

@ -2086,13 +2086,15 @@ circpad_circ_client_machine_init(void)
// FIXME: Tune this histogram
circ_client_machine->states[CIRCPAD_STATE_BURST].histogram_len = 2;
circ_client_machine->states[CIRCPAD_STATE_BURST].start_usec = 500;
circ_client_machine->states[CIRCPAD_STATE_BURST].range_usec = 1000000;
circ_client_machine->states[CIRCPAD_STATE_BURST].histogram_edges[0]= 500;
circ_client_machine->states[CIRCPAD_STATE_BURST].histogram_edges[1]= 1000000;
/* We have 5 tokens in the histogram, which means that all circuits will look
* like they have 7 hops (since we start this machine after the second hop,
* and tokens are decremented for any valid hops, and fake extends are
* used after that -- 2+5==7). */
circ_client_machine->states[CIRCPAD_STATE_BURST].histogram[0] = 5;
circ_client_machine->states[CIRCPAD_STATE_BURST].histogram_total_tokens = 5;
circ_client_machine->machine_num = smartlist_len(origin_padding_machines);
@ -2143,8 +2145,9 @@ circpad_circ_responder_machine_init(void)
circ_responder_machine->states[CIRCPAD_STATE_BURST].use_rtt_estimate = 1;
/* The histogram is 2 bins: an empty one, and infinity */
circ_responder_machine->states[CIRCPAD_STATE_BURST].histogram_len = 2;
circ_responder_machine->states[CIRCPAD_STATE_BURST].start_usec = 5000;
circ_responder_machine->states[CIRCPAD_STATE_BURST].range_usec = 1000000;
circ_responder_machine->states[CIRCPAD_STATE_BURST].histogram_edges[0]= 500;
circ_responder_machine->states[CIRCPAD_STATE_BURST].histogram_edges[1] =
1000000;
/* During burst state we wait forever for padding to arrive.
We are waiting for a padding cell from the client to come in, so that we
@ -2175,8 +2178,15 @@ circpad_circ_responder_machine_init(void)
before you send a padding response */
circ_responder_machine->states[CIRCPAD_STATE_GAP].use_rtt_estimate = 1;
circ_responder_machine->states[CIRCPAD_STATE_GAP].histogram_len = 6;
circ_responder_machine->states[CIRCPAD_STATE_GAP].start_usec = 5000;
circ_responder_machine->states[CIRCPAD_STATE_GAP].range_usec = 1000000;
/* Specify histogram bins */
circ_responder_machine->states[CIRCPAD_STATE_GAP].histogram_edges[0]= 500;
circ_responder_machine->states[CIRCPAD_STATE_GAP].histogram_edges[1]= 1000;
circ_responder_machine->states[CIRCPAD_STATE_GAP].histogram_edges[2]= 2000;
circ_responder_machine->states[CIRCPAD_STATE_GAP].histogram_edges[3]= 4000;
circ_responder_machine->states[CIRCPAD_STATE_GAP].histogram_edges[4]= 8000;
circ_responder_machine->states[CIRCPAD_STATE_GAP].histogram_edges[5]= 16000;
circ_responder_machine->states[CIRCPAD_STATE_GAP].histogram_edges[6]=1000000;
/* Specify histogram tokens */
circ_responder_machine->states[CIRCPAD_STATE_GAP].histogram[0] = 0;
circ_responder_machine->states[CIRCPAD_STATE_GAP].histogram[1] = 1;
circ_responder_machine->states[CIRCPAD_STATE_GAP].histogram[2] = 2;
@ -2184,6 +2194,7 @@ circpad_circ_responder_machine_init(void)
circ_responder_machine->states[CIRCPAD_STATE_GAP].histogram[4] = 1;
/* Total number of tokens */
circ_responder_machine->states[CIRCPAD_STATE_GAP].histogram_total_tokens = 6;
circ_responder_machine->states[CIRCPAD_STATE_GAP].token_removal =
CIRCPAD_TOKEN_REMOVAL_CLOSEST_USEC;

107
src/test/test_circuitpadding.c
View File

@ -334,7 +334,7 @@ test_circuitpadding_rtt(void *arg)
OP_EQ,
relay_side->padding_info[0]->rtt_estimate_usec+
circpad_machine_current_state(
relay_side->padding_info[0])->start_usec);
relay_side->padding_info[0])->histogram_edges[0]);
circpad_cell_event_nonpadding_received((circuit_t*)relay_side);
circpad_cell_event_nonpadding_received((circuit_t*)relay_side);
@ -350,7 +350,7 @@ test_circuitpadding_rtt(void *arg)
OP_EQ,
relay_side->padding_info[0]->rtt_estimate_usec+
circpad_machine_current_state(
relay_side->padding_info[0])->start_usec);
relay_side->padding_info[0])->histogram_edges[0]);
/* Test 2: Termination of RTT measurement (from the previous test) */
tt_int_op(relay_side->padding_info[0]->stop_rtt_update, OP_EQ, 1);
@ -368,7 +368,7 @@ test_circuitpadding_rtt(void *arg)
OP_EQ,
relay_side->padding_info[0]->rtt_estimate_usec+
circpad_machine_current_state(
relay_side->padding_info[0])->start_usec);
relay_side->padding_info[0])->histogram_edges[0]);
/* Test 3: Make sure client side machine properly ignores RTT */
circpad_cell_event_nonpadding_received((circuit_t*)client_side);
@ -384,7 +384,7 @@ test_circuitpadding_rtt(void *arg)
tt_int_op(circpad_histogram_bin_to_usec(client_side->padding_info[0], 0),
OP_EQ,
circpad_machine_current_state(
client_side->padding_info[0])->start_usec);
client_side->padding_info[0])->histogram_edges[0]);
done:
free_fake_orcirc(relay_side);
circuitmux_detach_all_circuits(dummy_channel.cmux, NULL);
@ -415,19 +415,25 @@ helper_create_basic_machine(void)
circ_client_machine.states[CIRCPAD_STATE_BURST].
next_state[CIRCPAD_EVENT_NONPADDING_SENT] = CIRCPAD_STATE_CANCEL;
// FIXME: Is this what we want?
circ_client_machine.states[CIRCPAD_STATE_BURST].token_removal =
CIRCPAD_TOKEN_REMOVAL_HIGHER;
// FIXME: Tune this histogram
circ_client_machine.states[CIRCPAD_STATE_BURST].histogram_len = 5;
circ_client_machine.states[CIRCPAD_STATE_BURST].start_usec = 500;
circ_client_machine.states[CIRCPAD_STATE_BURST].range_usec = 1000000;
circ_client_machine.states[CIRCPAD_STATE_BURST].histogram_edges[0] = 500;
circ_client_machine.states[CIRCPAD_STATE_BURST].histogram_edges[1] = 2500;
circ_client_machine.states[CIRCPAD_STATE_BURST].histogram_edges[2] = 5000;
circ_client_machine.states[CIRCPAD_STATE_BURST].histogram_edges[3] = 10000;
circ_client_machine.states[CIRCPAD_STATE_BURST].histogram_edges[4] = 20000;
circ_client_machine.states[CIRCPAD_STATE_BURST].histogram_edges[5] = 400000;
circ_client_machine.states[CIRCPAD_STATE_BURST].histogram_edges[6] = 1000000;
circ_client_machine.states[CIRCPAD_STATE_BURST].histogram[0] = 1;
circ_client_machine.states[CIRCPAD_STATE_BURST].histogram[1] = 0;
circ_client_machine.states[CIRCPAD_STATE_BURST].histogram[2] = 2;
circ_client_machine.states[CIRCPAD_STATE_BURST].histogram[3] = 2;
circ_client_machine.states[CIRCPAD_STATE_BURST].histogram[4] = 2;
circ_client_machine.states[CIRCPAD_STATE_BURST].histogram_total_tokens = 7;
circ_client_machine.states[CIRCPAD_STATE_BURST].use_rtt_estimate = 1;
@ -459,15 +465,25 @@ helper_create_machine_with_big_histogram(circpad_removal_t removal_strategy)
burst_state->token_removal = CIRCPAD_TOKEN_REMOVAL_HIGHER;
burst_state->histogram_len = BIG_HISTOGRAM_LEN;
burst_state->start_usec = 0;
burst_state->range_usec = 1000;
int n_tokens = 0;
for (int i = 0; i < BIG_HISTOGRAM_LEN ; i++) {
int i;
for (i = 0; i < BIG_HISTOGRAM_LEN ; i++) {
burst_state->histogram[i] = tokens_per_bin;
n_tokens += tokens_per_bin;
}
burst_state->histogram_edges[0] = 0;
burst_state->histogram_edges[1] = 1;
burst_state->histogram_edges[2] = 7;
burst_state->histogram_edges[3] = 15;
burst_state->histogram_edges[4] = 31;
burst_state->histogram_edges[5] = 62;
burst_state->histogram_edges[6] = 125;
burst_state->histogram_edges[7] = 250;
burst_state->histogram_edges[8] = 500;
burst_state->histogram_edges[9] = 1000;
burst_state->histogram_total_tokens = n_tokens;
burst_state->length_dist.type = CIRCPAD_DIST_UNIFORM;
burst_state->length_dist.param1 = n_tokens;
@ -528,12 +544,20 @@ test_circuitpadding_token_removal_higher(void *arg)
/* Test left boundaries of each histogram bin: */
const circpad_delay_t bin_left_bounds[] =
{0, 1, 7, 15, 31, 62, 125, 250, 500, CIRCPAD_DELAY_INFINITE};
for (int i = 0; i < BIG_HISTOGRAM_LEN ; i++) {
{0, 1, 7, 15, 31, 62, 125, 250, 500, 1000, CIRCPAD_DELAY_INFINITE};
for (int i = 0; i <= BIG_HISTOGRAM_LEN ; i++) {
tt_uint_op(bin_left_bounds[i], OP_EQ,
circpad_histogram_bin_to_usec(mi, i));
}
/* Test right boundaries of each histogram bin: */
const circpad_delay_t bin_right_bounds[] =
{0, 6, 14, 30, 61, 124, 249, 499, 999, CIRCPAD_DELAY_INFINITE-1};
for (int i = 0; i < BIG_HISTOGRAM_LEN ; i++) {
tt_uint_op(bin_right_bounds[i], OP_EQ,
histogram_get_bin_upper_bound(mi, i));
}
/* Check that all bins have two tokens right now */
for (int i = 0; i < BIG_HISTOGRAM_LEN ; i++) {
tt_int_op(mi->histogram[i], OP_EQ, 2);
@ -577,8 +601,8 @@ test_circuitpadding_token_removal_higher(void *arg)
/* Test below the lowest bin, for coverage */
tt_int_op(client_side->padding_info[0]->current_state, OP_EQ,
CIRCPAD_STATE_BURST);
circ_client_machine.states[CIRCPAD_STATE_BURST].start_usec = 100;
mi->padding_scheduled_at_usec = current_time - 1;
circ_client_machine.states[CIRCPAD_STATE_BURST].histogram_edges[0] = 100;
mi->padding_scheduled_at_usec = current_time;
circpad_machine_remove_token(mi);
tt_int_op(mi->histogram[0], OP_EQ, 1);
@ -625,8 +649,8 @@ test_circuitpadding_token_removal_lower(void *arg)
/* Test left boundaries of each histogram bin: */
const circpad_delay_t bin_left_bounds[] =
{0, 1, 7, 15, 31, 62, 125, 250, 500, CIRCPAD_DELAY_INFINITE};
for (int i = 0; i < BIG_HISTOGRAM_LEN ; i++) {
{0, 1, 7, 15, 31, 62, 125, 250, 500, 1000, CIRCPAD_DELAY_INFINITE};
for (int i = 0; i <= BIG_HISTOGRAM_LEN ; i++) {
tt_uint_op(bin_left_bounds[i], OP_EQ,
circpad_histogram_bin_to_usec(mi, i));
}
@ -674,7 +698,8 @@ test_circuitpadding_token_removal_lower(void *arg)
/* Test above the highest bin, for coverage */
tt_int_op(client_side->padding_info[0]->current_state, OP_EQ,
CIRCPAD_STATE_BURST);
circ_client_machine.states[CIRCPAD_STATE_BURST].start_usec = 100;
circ_client_machine.states[CIRCPAD_STATE_BURST].
histogram_edges[BIG_HISTOGRAM_LEN-2] = 100;
mi->padding_scheduled_at_usec = current_time - 29202;
circpad_machine_remove_token(mi);
tt_int_op(mi->histogram[BIG_HISTOGRAM_LEN-2], OP_EQ, 1);
@ -722,8 +747,8 @@ test_circuitpadding_closest_token_removal(void *arg)
/* Test left boundaries of each histogram bin: */
const circpad_delay_t bin_left_bounds[] =
{0, 1, 7, 15, 31, 62, 125, 250, 500, CIRCPAD_DELAY_INFINITE};
for (int i = 0; i < BIG_HISTOGRAM_LEN ; i++) {
{0, 1, 7, 15, 31, 62, 125, 250, 500, 1000, CIRCPAD_DELAY_INFINITE};
for (int i = 0; i <= BIG_HISTOGRAM_LEN ; i++) {
tt_uint_op(bin_left_bounds[i], OP_EQ,
circpad_histogram_bin_to_usec(mi, i));
}
@ -770,7 +795,9 @@ test_circuitpadding_closest_token_removal(void *arg)
/* Test below the lowest bin, for coverage */
tt_int_op(client_side->padding_info[0]->current_state, OP_EQ,
CIRCPAD_STATE_BURST);
circ_client_machine.states[CIRCPAD_STATE_BURST].start_usec = 100;
circ_client_machine.states[CIRCPAD_STATE_BURST].histogram_edges[0] = 100;
circ_client_machine.states[CIRCPAD_STATE_BURST].histogram_edges[1] = 100;
circ_client_machine.states[CIRCPAD_STATE_BURST].histogram_edges[2] = 120;
mi->padding_scheduled_at_usec = current_time - 102;
mi->histogram[0] = 0;
circpad_machine_remove_token(mi);
@ -779,7 +806,6 @@ test_circuitpadding_closest_token_removal(void *arg)
/* Test above the highest bin, for coverage */
tt_int_op(client_side->padding_info[0]->current_state, OP_EQ,
CIRCPAD_STATE_BURST);
circ_client_machine.states[CIRCPAD_STATE_BURST].start_usec = 100;
mi->padding_scheduled_at_usec = current_time - 29202;
circpad_machine_remove_token(mi);
tt_int_op(mi->histogram[BIG_HISTOGRAM_LEN-2], OP_EQ, 1);
@ -827,8 +853,8 @@ test_circuitpadding_closest_token_removal_usec(void *arg)
/* Test left boundaries of each histogram bin: */
const circpad_delay_t bin_left_bounds[] =
{0, 1, 7, 15, 31, 62, 125, 250, 500, CIRCPAD_DELAY_INFINITE};
for (int i = 0; i < BIG_HISTOGRAM_LEN ; i++) {
{0, 1, 7, 15, 31, 62, 125, 250, 500, 1000, CIRCPAD_DELAY_INFINITE};
for (int i = 0; i <= BIG_HISTOGRAM_LEN ; i++) {
tt_uint_op(bin_left_bounds[i], OP_EQ,
circpad_histogram_bin_to_usec(mi, i));
}
@ -878,7 +904,9 @@ test_circuitpadding_closest_token_removal_usec(void *arg)
/* Test below the lowest bin, for coverage */
tt_int_op(client_side->padding_info[0]->current_state, OP_EQ,
CIRCPAD_STATE_BURST);
circ_client_machine.states[CIRCPAD_STATE_BURST].start_usec = 100;
circ_client_machine.states[CIRCPAD_STATE_BURST].histogram_edges[0] = 100;
circ_client_machine.states[CIRCPAD_STATE_BURST].histogram_edges[1] = 100;
circ_client_machine.states[CIRCPAD_STATE_BURST].histogram_edges[2] = 120;
mi->padding_scheduled_at_usec = current_time - 102;
mi->histogram[0] = 0;
circpad_machine_remove_token(mi);
@ -887,7 +915,8 @@ test_circuitpadding_closest_token_removal_usec(void *arg)
/* Test above the highest bin, for coverage */
tt_int_op(client_side->padding_info[0]->current_state, OP_EQ,
CIRCPAD_STATE_BURST);
circ_client_machine.states[CIRCPAD_STATE_BURST].start_usec = 100;
circ_client_machine.states[CIRCPAD_STATE_BURST].
histogram_edges[BIG_HISTOGRAM_LEN-2] = 100;
mi->padding_scheduled_at_usec = current_time - 29202;
circpad_machine_remove_token(mi);
tt_int_op(mi->histogram[BIG_HISTOGRAM_LEN-2], OP_EQ, 1);
@ -1044,7 +1073,7 @@ test_circuitpadding_tokens(void *arg)
// Test 1: converting usec->bin->usec->bin
// Bin 0+1 have different semantics.
for (circpad_delay_t i = 0; i <= state->start_usec+1; i++) {
for (circpad_delay_t i = 0; i <= state->histogram_edges[0]; i++) {
int bin = circpad_histogram_usec_to_bin(client_side->padding_info[0],
i);
circpad_delay_t usec =
@ -1054,8 +1083,9 @@ test_circuitpadding_tokens(void *arg)
tt_int_op(bin, OP_EQ, bin2);
tt_int_op(i, OP_LE, usec);
}
for (circpad_delay_t i = state->start_usec+1;
i <= state->start_usec + state->range_usec; i++) {
for (circpad_delay_t i = state->histogram_edges[0]+1;
i <= state->histogram_edges[0] +
state->histogram_edges[state->histogram_len-2]; i++) {
int bin = circpad_histogram_usec_to_bin(client_side->padding_info[0],
i);
circpad_delay_t usec =
@ -1107,8 +1137,7 @@ test_circuitpadding_tokens(void *arg)
/* 2.c. Bin 0 */
{
tt_int_op(mi->histogram[0], OP_EQ, 1);
circpad_machine_remove_higher_token(mi,
state->start_usec/2);
circpad_machine_remove_higher_token(mi, state->histogram_edges[0]/2);
tt_int_op(mi->histogram[0], OP_EQ, 0);
}
@ -1127,8 +1156,7 @@ test_circuitpadding_tokens(void *arg)
/* 3.a. Bin 0 */
{
tt_int_op(mi->histogram[0], OP_EQ, 1);
circpad_machine_remove_higher_token(mi,
state->start_usec/2);
circpad_machine_remove_higher_token(mi, state->histogram_edges[0]/2);
tt_int_op(mi->histogram[0], OP_EQ, 0);
}
@ -1616,15 +1644,20 @@ helper_create_conditional_machine(void)
ret->states[CIRCPAD_STATE_BURST].
next_state[CIRCPAD_EVENT_LENGTH_COUNT] = CIRCPAD_STATE_END;
/* Use EXACT removal strategy, otherwise setup_tokens() does not work */
ret->states[CIRCPAD_STATE_BURST].token_removal =
CIRCPAD_TOKEN_REMOVAL_NONE;
CIRCPAD_TOKEN_REMOVAL_EXACT;
ret->states[CIRCPAD_STATE_BURST].histogram_len = 3;
ret->states[CIRCPAD_STATE_BURST].start_usec = 0;
ret->states[CIRCPAD_STATE_BURST].range_usec = 1000000;
ret->states[CIRCPAD_STATE_BURST].histogram_edges[0] = 0;
ret->states[CIRCPAD_STATE_BURST].histogram_edges[1] = 0;
ret->states[CIRCPAD_STATE_BURST].histogram_edges[2] = 1000000;
ret->states[CIRCPAD_STATE_BURST].histogram[0] = 6;
ret->states[CIRCPAD_STATE_BURST].histogram[1] = 0;
ret->states[CIRCPAD_STATE_BURST].histogram[1] = 0;
ret->states[CIRCPAD_STATE_BURST].histogram[2] = 0;
ret->states[CIRCPAD_STATE_BURST].histogram_total_tokens = 6;
ret->states[CIRCPAD_STATE_BURST].use_rtt_estimate = 0;
ret->states[CIRCPAD_STATE_BURST].length_includes_nonpadding = 1;