| 1 | /* -*-c-*- |
| 2 | * |
| 3 | * Test the control-flow metaprogramming macros |
| 4 | * |
| 5 | * (c) 2022 Straylight/Edgeware |
| 6 | */ |
| 7 | |
| 8 | /*----- Licensing notice --------------------------------------------------* |
| 9 | * |
| 10 | * This file is part of the mLib utilities library. |
| 11 | * |
| 12 | * mLib is free software: you can redistribute it and/or modify it under |
| 13 | * the terms of the GNU Library General Public License as published by |
| 14 | * the Free Software Foundation; either version 2 of the License, or (at |
| 15 | * your option) any later version. |
| 16 | * |
| 17 | * mLib is distributed in the hope that it will be useful, but WITHOUT |
| 18 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| 19 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public |
| 20 | * License for more details. |
| 21 | * |
| 22 | * You should have received a copy of the GNU Library General Public |
| 23 | * License along with mLib. If not, write to the Free Software |
| 24 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, |
| 25 | * USA. |
| 26 | */ |
| 27 | |
| 28 | /*----- Header files ------------------------------------------------------*/ |
| 29 | |
| 30 | #include <stdio.h> |
| 31 | #include <stdlib.h> |
| 32 | #include <string.h> |
| 33 | |
| 34 | #include "control.h" |
| 35 | #include "report.h" |
| 36 | #include "tvec.h" |
| 37 | |
| 38 | /*----- Main code ---------------------------------------------------------*/ |
| 39 | |
| 40 | static struct tvec_state tvstate; |
| 41 | static int step; |
| 42 | |
| 43 | #define TESTGROUP(name) \ |
| 44 | TVEC_TESTGROUP_TAG(grp, &tvstate, name) \ |
| 45 | MC_BEFORE(init, { step = 0; }) |
| 46 | #define TEST TVEC_TEST_TAG(test, &tvstate) |
| 47 | #define STEP(s) do { \ |
| 48 | tvec_claim(&tvstate, s == step, __FILE__, __LINE__, \ |
| 49 | "found %d /= expected %d", s, step); \ |
| 50 | step++; \ |
| 51 | } while (0) |
| 52 | #define MISSTEP do { \ |
| 53 | tvec_claim(&tvstate, 0, __FILE__, __LINE__, \ |
| 54 | "shouldn't have reached here"); \ |
| 55 | step++; \ |
| 56 | } while (0) |
| 57 | |
| 58 | int main(int argc, char *argv[]) |
| 59 | { |
| 60 | struct tvec_test test; |
| 61 | int argpos; |
| 62 | int i; |
| 63 | |
| 64 | tvec_parseargs(argc, argv, &tvstate, &argpos, &tvec_adhocconfig); |
| 65 | if (argpos < argc) die(2, "no input files expected"); |
| 66 | tvec_adhoc(&tvstate, &test); |
| 67 | |
| 68 | TESTGROUP("before-after") { |
| 69 | MC_BEFORE(before0, STEP(0)) STEP(1); |
| 70 | MC_AFTER(after0, STEP(3)) STEP(2); |
| 71 | STEP(4); |
| 72 | } |
| 73 | |
| 74 | TESTGROUP("wrap") { |
| 75 | MC_WRAP(wrap0, STEP(0), STEP(2), MISSTEP) |
| 76 | STEP(1); |
| 77 | MC_WRAP(wrap1, STEP(3), MISSTEP, STEP(5)) |
| 78 | { STEP(4); break; } |
| 79 | STEP(6); |
| 80 | } |
| 81 | |
| 82 | TESTGROUP("loop") { |
| 83 | for (;;) { |
| 84 | MC_AFTER(after1, STEP(1); break) STEP(0); |
| 85 | MISSTEP; break; |
| 86 | } |
| 87 | STEP(2); |
| 88 | } |
| 89 | |
| 90 | #define FORELSE(head) MC_LOOPELSE(forelse, for (head)) |
| 91 | |
| 92 | TESTGROUP("for-else") { |
| 93 | FORELSE (i = 0; i < 10; i++) { |
| 94 | STEP(i); |
| 95 | if (i == 7) break; |
| 96 | } else |
| 97 | MISSTEP; |
| 98 | STEP(8); |
| 99 | } |
| 100 | |
| 101 | TESTGROUP("for-else-break") { |
| 102 | FORELSE (i = 0; i < 10; i++) { |
| 103 | STEP(i); |
| 104 | if (i == 12) break; |
| 105 | } else |
| 106 | STEP(10); |
| 107 | STEP(11); |
| 108 | } |
| 109 | |
| 110 | #undef FORELSE |
| 111 | |
| 112 | TESTGROUP("loop-between") { |
| 113 | MC_LOOPBETWEEN(x, i = 0, i < 5, i++) STEP(2*i); |
| 114 | else STEP(2*i - 1); |
| 115 | STEP(9); |
| 116 | } |
| 117 | |
| 118 | TESTGROUP("loop-between-continue-break") { |
| 119 | MC_LOOPBETWEEN(x, i = 0, i < 5, i++) { |
| 120 | if (i == 1) { STEP(2); continue; } |
| 121 | STEP(2*i); |
| 122 | if (i == 3) break; |
| 123 | } else |
| 124 | STEP(2*i - 1); |
| 125 | STEP(7); |
| 126 | } |
| 127 | |
| 128 | #define WRAPELSE_TEST \ |
| 129 | MC_TARGET(done_plain, { STEP(4); MC_GOELSE(elsie); }) \ |
| 130 | MC_WRAP(outer_wrap, { STEP(0); }, \ |
| 131 | { STEP(6); }, \ |
| 132 | { MISSTEP; }) \ |
| 133 | MC_ALLOWELSE(elsie) \ |
| 134 | MC_WRAP(inner_wrap, { STEP(1); }, \ |
| 135 | { STEP(3); MC_GOTARGET(done_plain); }, \ |
| 136 | { MISSTEP; }) |
| 137 | |
| 138 | TESTGROUP("wrap-else") { |
| 139 | WRAPELSE_TEST STEP(2); |
| 140 | else STEP(5); |
| 141 | STEP(7); |
| 142 | } |
| 143 | |
| 144 | #undef WRAPELSE_TEST |
| 145 | |
| 146 | TESTGROUP("decl") { |
| 147 | #if __STDC_VERSION__ >= 199901 || defined(__cplusplus) |
| 148 | STEP(0); |
| 149 | MC_DECL(decl0, int j = 1) STEP(j); |
| 150 | STEP(2); |
| 151 | #else |
| 152 | tvec_skipgroup(&tvstate, "`MC_DECL' not supported on C89"); |
| 153 | #endif |
| 154 | } |
| 155 | |
| 156 | #define FIZZBUZZ_DECLS(var) \ |
| 157 | int _i, _limit; \ |
| 158 | char _buf[24]; \ |
| 159 | const char *var |
| 160 | #define FOR_FIZZBUZZ(var, base, limit) \ |
| 161 | MC_TARGET(out, { ; }) \ |
| 162 | MC_BEFORE(bounds, { _i = base; _limit = limit; }) \ |
| 163 | for (; _i < _limit; _i++) \ |
| 164 | MC_WRAP(wrap, \ |
| 165 | { switch (_i%15) { \ |
| 166 | case 0: var = "fizzbuzz"; break; \ |
| 167 | case 3: case 6: case 9: case 12: var = "fizz"; break; \ |
| 168 | case 5: case 10: var = "buzz"; break; \ |
| 169 | default: sprintf(_buf, "%d", _i); var = _buf; break; \ |
| 170 | } }, \ |
| 171 | { ; }, \ |
| 172 | { MC_GOTARGET(out); }) |
| 173 | |
| 174 | TESTGROUP("fizzbuzz") { |
| 175 | FIZZBUZZ_DECLS(fb); |
| 176 | unsigned i; |
| 177 | static const char *const ref[] = { |
| 178 | "19", "buzz", "fizz", "22", "23", "fizz", "buzz", |
| 179 | "26", "fizz", "28", "29", "fizzbuzz", "31", 0 |
| 180 | }; |
| 181 | |
| 182 | i = 0; |
| 183 | FOR_FIZZBUZZ(fb, 19, 32) |
| 184 | TEST |
| 185 | if (TVEC_CLAIM(&tvstate, ref[i])) |
| 186 | { TVEC_CLAIMEQ_STRZ(&tvstate, fb, ref[i]); i++; } |
| 187 | TVEC_CLAIM(&tvstate, !ref[i]); |
| 188 | } |
| 189 | |
| 190 | #undef FIZZBUZZ_DECLS |
| 191 | #undef FOR_FIZZBUZZ |
| 192 | |
| 193 | return (tvec_end(&tvstate)); |
| 194 | } |
| 195 | |
| 196 | /*----- That's all, folks -------------------------------------------------*/ |