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tests/unix: Add coverage tests for pairheap data structure.

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This commit is contained in:
Damien George 2020-01-14 00:02:01 +11:00
parent cfddc6a8c7
commit dccace6f3f
2 changed files with 72 additions and 0 deletions
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59
ports/unix/coverage.c
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@ -11,6 +11,7 @@
#include "py/emit.h"
#include "py/formatfloat.h"
#include "py/ringbuf.h"
#include "py/pairheap.h"
#include "py/stream.h"
#include "py/binary.h"
#include "py/bc.h"
@ -139,6 +140,35 @@ STATIC const mp_obj_type_t mp_type_stest_textio2 = {
STATIC const mp_obj_str_t str_no_hash_obj = {{&mp_type_str}, 0, 10, (const byte*)"0123456789"};
STATIC const mp_obj_str_t bytes_no_hash_obj = {{&mp_type_bytes}, 0, 10, (const byte*)"0123456789"};
STATIC int pairheap_lt(mp_pairheap_t *a, mp_pairheap_t *b) {
return (uintptr_t)a < (uintptr_t)b;
}
// ops array contain operations: x>=0 means push(x), x<0 means delete(-x)
STATIC void pairheap_test(size_t nops, int *ops) {
mp_pairheap_t node[8];
mp_pairheap_t *heap = mp_pairheap_new(pairheap_lt);
printf("create:");
for (size_t i = 0; i < nops; ++i) {
if (ops[i] >= 0) {
heap = mp_pairheap_push(pairheap_lt, heap, &node[ops[i]]);
} else {
heap = mp_pairheap_delete(pairheap_lt, heap, &node[-ops[i]]);
}
if (mp_pairheap_is_empty(pairheap_lt, heap)) {
mp_printf(&mp_plat_print, " -");
} else {
mp_printf(&mp_plat_print, " %d", mp_pairheap_peek(pairheap_lt, heap) - &node[0]);;
}
}
printf("\npop all:");
while (!mp_pairheap_is_empty(pairheap_lt, heap)) {
mp_printf(&mp_plat_print, " %d", mp_pairheap_peek(pairheap_lt, heap) - &node[0]);;
heap = mp_pairheap_pop(pairheap_lt, heap);
}
printf("\n");
}
// function to run extra tests for things that can't be checked by scripts
STATIC mp_obj_t extra_coverage(void) {
// mp_printf (used by ports that don't have a native printf)
@ -514,6 +544,35 @@ STATIC mp_obj_t extra_coverage(void) {
mp_printf(&mp_plat_print, "%d\n", ringbuf_get16(&ringbuf));
}
// pairheap
{
mp_printf(&mp_plat_print, "# pairheap\n");
// Basic case.
int t0[] = {0, 2, 1, 3};
pairheap_test(MP_ARRAY_SIZE(t0), t0);
// All pushed in reverse order.
int t1[] = {7, 6, 5, 4, 3, 2, 1, 0};
pairheap_test(MP_ARRAY_SIZE(t1), t1);
// Basic deletion.
int t2[] = {1, -1, -1, 1, 2, -2, 2, 3, -3};
pairheap_test(MP_ARRAY_SIZE(t2), t2);
// Deletion of first child that has next node (the -3).
int t3[] = {1, 2, 3, 4, -1, -3};
pairheap_test(MP_ARRAY_SIZE(t3), t3);
// Deletion of node that's not first child (the -2).
int t4[] = {1, 2, 3, 4, -2};
pairheap_test(MP_ARRAY_SIZE(t4), t4);
// Deletion of node that's not first child and has children (the -3).
int t5[] = {3, 4, 5, 1, 2, -3};
pairheap_test(MP_ARRAY_SIZE(t5), t5);
}
mp_obj_streamtest_t *s = m_new_obj(mp_obj_streamtest_t);
s->base.type = &mp_type_stest_fileio;
s->buf = NULL;

13
tests/unix/extra_coverage.py.exp
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@ -101,6 +101,19 @@ cc99
22ff
-1
-1
# pairheap
create: 0 0 0 0
pop all: 0 1 2 3
create: 7 6 5 4 3 2 1 0
pop all: 0 1 2 3 4 5 6 7
create: 1 - - 1 1 1 1 1 1
pop all: 1 2
create: 1 1 1 1 2 2
pop all: 2 4
create: 1 1 1 1 1
pop all: 1 3 4
create: 3 3 3 1 1 1
pop all: 1 2 4 5
0123456789 b'0123456789'
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