101 lines
4.5 KiB
C
101 lines
4.5 KiB
C
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/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
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│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi│
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╞══════════════════════════════════════════════════════════════════════════════╡
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│ Copyright 2020 Justine Alexandra Roberts Tunney │
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│ │
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│ This program is free software; you can redistribute it and/or modify │
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│ it under the terms of the GNU General Public License as published by │
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│ the Free Software Foundation; version 2 of the License. │
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│ │
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│ This program is distributed in the hope that it will be useful, but │
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│ WITHOUT ANY WARRANTY; without even the implied warranty of │
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│ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU │
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│ General Public License for more details. │
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│ │
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│ You should have received a copy of the GNU General Public License │
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│ along with this program; if not, write to the Free Software │
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│ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA │
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│ 02110-1301 USA │
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╚─────────────────────────────────────────────────────────────────────────────*/
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#include "libc/bits/safemacros.h"
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#include "libc/fmt/fmt.h"
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#include "libc/mem/mem.h"
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#include "libc/str/str.h"
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#include "libc/testlib/testlib.h"
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struct ComboGroup {
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unsigned entry;
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unsigned i;
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unsigned n;
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};
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struct ComboProduct {
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unsigned n;
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struct ComboGroup groups[];
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};
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mallocesque testonly struct ComboProduct *testlib_setupcomboproduct(
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const struct TestFixture *start, const struct TestFixture *end) {
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unsigned i, j, entrycount;
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struct ComboProduct *product;
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entrycount = testlib_countfixtures(start, end);
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product = calloc(
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sizeof(struct ComboProduct) + entrycount * sizeof(struct ComboGroup), 1);
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for (j = i = 0; i < entrycount; ++i) {
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if (j && strcmp(start[product->groups[j - 1].entry].group,
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start[i].group) == 0) {
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product->groups[j - 1].n++;
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} else {
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++j;
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product->groups[j - 1].entry = i;
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product->groups[j - 1].n = 1;
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}
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}
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product->n = j;
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return product;
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}
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static testonly void testlib_describecombo(struct ComboProduct *product,
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const struct TestFixture *combos) {
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char *p = &g_fixturename[0];
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char *pe = p + sizeof(g_fixturename);
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for (unsigned i = 0; i < product->n && p < pe; ++i) {
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const char *sep = i ? ", " : "";
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const struct TestFixture *e =
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&combos[product->groups[i].entry + product->groups[i].i];
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p += max(0, snprintf(p, pe - p, "%s%s=%s", sep, e->group, e->name));
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}
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}
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static testonly void testlib_callcombos(struct ComboProduct *product,
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const struct TestFixture *combos,
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testfn_t *test_start,
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testfn_t *test_end) {
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for (;;) {
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testlib_describecombo(product, combos);
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for (unsigned i = 0; i < product->n; ++i) {
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combos[product->groups[i].entry + product->groups[i].i].fn();
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}
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for (unsigned i = product->n;; --i) {
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if (!i) return;
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if (++product->groups[i - 1].i < product->groups[i - 1].n) break;
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product->groups[i - 1].i = 0;
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}
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testlib_runtestcases(test_start, test_end, NULL);
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}
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}
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/**
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* Runs Cartesian product of COMBO() fixtures registered with linker.
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* @see ape/ape.lds
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* @see libc/testlib/testlib.h
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*/
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testonly void testlib_runcombos(testfn_t *test_start, testfn_t *test_end,
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const struct TestFixture *combo_start,
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const struct TestFixture *combo_end) {
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struct ComboProduct *product;
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product = testlib_setupcomboproduct(combo_start, combo_end);
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testlib_callcombos(product, combo_start, test_start, test_end);
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free(product);
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}
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