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test/test_state_coverage: ensure we produce all output packets.

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Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This commit is contained in:
Rusty Russell 2015-09-25 11:51:18 +09:30
parent f51e9c81bf
commit 8308e31d6c
1 changed files with 43 additions and 0 deletions
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43
test/test_state_coverage.c
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@ -110,6 +110,9 @@ struct hist {
/* The different inputs. */
enum state_input **inputs_per_state;
/* The different outputs. */
enum state_input *outputs;
};
static const char *state_name(enum state s)
@ -652,6 +655,29 @@ static void eliminate_input(enum state_input **inputs, enum state_input in)
}
}
static bool find_output(const enum state_input *outputs, enum state_input out)
{
size_t n, i;
n = tal_count(outputs);
for (i = 0; i < n; i++)
if (outputs[i] == out)
return true;
return false;
}
static void record_output(enum state_input **outputs, enum state_input out)
{
size_t n;
if (find_output(*outputs, out))
return;
n = tal_count(*outputs);
tal_resize(outputs, n+1);
(*outputs)[n] = out;
}
static struct trail *try_input(const struct state_data *sdata,
enum state_input i,
struct hist *hist)
@ -678,6 +704,12 @@ static struct trail *try_input(const struct state_data *sdata,
if (problem)
return new_trail(i, sdata, newstate, effect, problem);
/* Record any output. */
if (effect->send) {
record_output(&hist->outputs,
input_by_name((const char *)effect->send));
}
/* Have we been in this overall situation before? */
if (!sithash_update(&hist->sithash, &copy)) {
tal_free(effect);
@ -893,6 +925,7 @@ int main(void)
/* Map the inputs tested in each state. */
hist.inputs_per_state = map_inputs();
sithash_init(&hist.sithash);
hist.outputs = tal_arr(NULL, enum state_input, 0);
/* Initialize universe. */
sdata_init(&a, &b, STATE_INIT_WITHANCHOR, "A");
@ -947,5 +980,15 @@ int main(void)
input_name(*hist.inputs_per_state[i]));
}
for (i = 0; i < INPUT_MAX; i++) {
/* Not all input values are valid. */
if (streq(input_name(i), "unknown"))
continue;
/* We only expect packets to be output. */
if (!input_is_pkt(i))
continue;
if (!find_output(hist.outputs, i))
warnx("Never sent output %s", input_name(i));
}
return 0;
}