mytest_str("String with no separator in it", "toto", "##", "toto");
mytest_str("Basic test", "toto##tutu", "##", "totoXXXtutu");
}
+
+#define mytest_diff(name, s1, s2, diff) \
+ do { \
+ char *mytest_diff_res; \
+ xbt_test_add(name); \
+ mytest_diff_res = xbt_str_diff(s1, s2); \
+ xbt_test_assert(!strcmp(mytest_diff_res, diff), \
+ "Wrong output:\n--- got:\n%s\n--- expected:\n%s\n---", \
+ mytest_diff_res, diff); \
+ free(mytest_diff_res); \
+ } while (0)
+
+XBT_TEST_UNIT("xbt_str_diff", test_diff, "test the function xbt_str_diff")
+{
+ unsigned i;
+
+ /* Trivial cases */
+ mytest_diff("1 word, no difference", "a", "a", " a");
+ mytest_diff("1 word, different", "a", "A", "- a\n+ A");
+ mytest_diff("1 line, no difference", "a\n", "a\n", " a");
+ mytest_diff("1 line, different", "a\n", "A\n", "- a\n+ A");
+
+ /* Empty strings */
+ mytest_diff("empty strings", "", "", "");
+ mytest_diff("1 word, added", "", "a", "+ a");
+ mytest_diff("1 word, removed", "a", "", "- a");
+ mytest_diff("1 line, added", "", "a\n", "+ a");
+ mytest_diff("1 line, removed", "a\n", "", "- a");
+ mytest_diff("4 lines, all added", "", "a\nb\nc\n", "+ a\n+ b\n+ c");
+ mytest_diff("4 lines, all removed", "a\nb\nc\n", "", "- a\n- b\n- c");
+
+ /* Empty lines */
+ mytest_diff("empty lines", "\n", "\n", " ");
+ mytest_diff("empty line, added", "", "\n", "+ ");
+ mytest_diff("empty line, removed", "\n", "", "- ");
+
+ mytest_diff("empty line added before word", "a", "\na", "+ \n a");
+ mytest_diff("empty line added after word", "a", "a\n\n", " a\n+ ");
+ mytest_diff("empty line removed before word", "\na", "a", "- \n a");
+ mytest_diff("empty line removed after word", "a\n\n", "a", " a\n- ");
+
+ mytest_diff("empty line added before line", "a\n", "\na\n", "+ \n a");
+ mytest_diff("empty line added after line", "a\n", "a\n\n", " a\n+ ");
+ mytest_diff("empty line removed before line", "\na\n", "a\n", "- \n a");
+ mytest_diff("empty line removed after line", "a\n\n", "a\n", " a\n- ");
+
+ mytest_diff("empty line added before 4 lines",
+ "a\nb\nc\nd\n", "\na\nb\nc\nd\n", "+ \n a\n b\n c\n d");
+ mytest_diff("empty line added after 4 lines",
+ "a\nb\nc\nd\n", "a\nb\nc\nd\n\n", " a\n b\n c\n d\n+ ");
+ mytest_diff("empty line removed before 4 lines",
+ "\na\nb\nc\nd\n", "a\nb\nc\nd\n", "- \n a\n b\n c\n d");
+ mytest_diff("empty line removed after 4 lines",
+ "a\nb\nc\nd\n\n", "a\nb\nc\nd\n", " a\n b\n c\n d\n- ");
+
+ /* Missing newline at the end of one of the strings */
+ mytest_diff("1 line, 1 word, no difference", "a\n", "a", " a");
+ mytest_diff("1 word, 1 line, no difference", "a", "a\n", " a");
+ mytest_diff("1 line, 1 word, different", "a\n", "A", "- a\n+ A");
+ mytest_diff("1 word, 1 line, different", "a", "A\n", "- a\n+ A");
+
+ mytest_diff("4 lines, no newline on first",
+ "a\nb\nc\nd", "a\nb\nc\nd\n", " a\n b\n c\n d");
+ mytest_diff("4 lines, no newline on second",
+ "a\nb\nc\nd\n", "a\nb\nc\nd", " a\n b\n c\n d");
+
+ /* Four lines, all combinations of differences */
+ for (i = 0 ; i < (1U << 4) ; i++) {
+ char descr[80];
+ char d2[4 + 1];
+ char s2[4 * 2 + 1];
+ char res[4 * 8 + 1];
+ char *pd = d2;
+ char *ps = s2;
+ char *pr = res;
+ unsigned j = 0;
+ while (j < 4) {
+ unsigned k;
+ for (/* j */ ; j < 4 && !(i & (1U << j)) ; j++) {
+ *pd++ = "abcd"[j];
+ ps += sprintf(ps, "%c\n", "abcd"[j]);
+ pr += sprintf(pr, " %c\n", "abcd"[j]);
+ }
+ for (k = j ; k < 4 && (i & (1U << k)) ; k++) {
+ *pd++ = "ABCD"[k];
+ ps += sprintf(ps, "%c\n", "ABCD"[k]);
+ pr += sprintf(pr, "- %c\n", "abcd"[k]);
+ }
+ for (/* j */ ; j < k ; j++) {
+ pr += sprintf(pr, "+ %c\n", "ABCD"[j]);
+ }
+ }
+ *pd = '\0';
+ *--pr = '\0'; /* strip last '\n' from expected result */
+ sprintf(descr, "compare (abcd) with changed (%s)", d2);
+ mytest_diff(descr, "a\nb\nc\nd\n", s2, res);
+ }
+
+ /* Subsets of four lines, do not test for empty subset */
+ for (i = 1 ; i < (1U << 4) ; i++) {
+ char descr[80];
+ char d2[4 + 1];
+ char s2[4 * 2 + 1];
+ char res[4 * 8 + 1];
+ char *pd = d2;
+ char *ps = s2;
+ char *pr = res;
+ unsigned j = 0;
+ while (j < 4) {
+ for (/* j */ ; j < 4 && (i & (1U << j)) ; j++) {
+ *pd++ = "abcd"[j];
+ ps += sprintf(ps, "%c\n", "abcd"[j]);
+ pr += sprintf(pr, " %c\n", "abcd"[j]);
+ }
+ for (/* j */; j < 4 && !(i & (1U << j)) ; j++) {
+ pr += sprintf(pr, "- %c\n", "abcd"[j]);
+ }
+ }
+ *pd = '\0';
+ *--pr = '\0'; /* strip last '\n' from expected result */
+ sprintf(descr, "compare (abcd) with subset (%s)", d2);
+ mytest_diff(descr, "a\nb\nc\nd\n", s2, res);
+
+ for (pr = res ; *pr != '\0' ; pr++)
+ if (*pr == '-')
+ *pr = '+';
+ sprintf(descr, "compare subset (%s) with (abcd)", d2);
+ mytest_diff(descr, s2, "a\nb\nc\nd\n", res);
+ }
+}
+
#endif /* SIMGRID_TEST */
