add some test cases

1 files changed, 16 insertions, 0 deletions

diff --git a/test/test_utf8.c b/test/test_utf8.c
index 0f1dfed..d0c0259 100644
--- a/test/test_utf8.c
+++ b/test/test_utf8.c
@@ -1217,6 +1217,22 @@ extern int main(int argc, char* argv[])
   x2("(a.c|def)(.{5})(?<=d\\1e)", "abcdabce", 0, 8);
   x2("(a.c|.)d(?<=\\k<1>d)", "zzzzzabcdabc", 5, 9);
   x2("(?<=az*)abc", "azzzzzzzzzzabcdabcabc", 11, 14);
+  x2("(?<=ab|abc|abcd)ef", "abcdef", 4, 6);
+  x2("(?<=ta+|tb+|tc+|td+)zz", "tcccccccccczz", 11, 13);
+  x2("(?<=t.{7}|t.{5}|t.{2}|t.)zz", "tczz", 2, 4);
+  x2("(?<=t.{7}|t.{5}|t.{2})zz", "tczzzz", 3, 5);
+  x2("(?<=t.{7}|t.{5}|t.{3})zz", "tczzazzbzz", 8, 10);
+  n("(?<=t.{7}|t.{5}|t.{3})zz", "tczzazzbczz");
+  x2("(?<=(ab|abc|abcd))ef", "abcdef", 4, 6);
+  x2("(?<=(ta+|tb+|tc+|td+))zz", "tcccccccccczz", 11, 13);
+  x2("(?<=(t.{7}|t.{5}|t.{2}|t.))zz", "tczz", 2, 4);
+  x2("(?<=(t.{7}|t.{5}|t.{2}))zz", "tczzzz", 3, 5);
+  x2("(?<=(t.{7}|t.{5}|t.{3}))zz", "tczzazzbzz", 8, 10);
+  n("(?<=(t.{7}|t.{5}|t.{3}))zz", "tczzazzbczz");
+  x2("(.{1,4})(.{1,4})(?<=\\2\\1)", "abaaba", 0, 6);
+  x2("(.{1,4})(.{1,4})(?<=\\2\\1)", "ababab", 0, 6);
+  n("(.{1,4})(.{1,4})(?<=\\2\\1)", "abcdabce");
+  x2("(.{1,4})(.{1,4})(?<=\\2\\1)", "abcdabceabce", 4, 12);
   n("(?<!abc)def", "abcdef");
   n("(?<!xxx|abc)def", "abcdef");
   n("(?<!xxxxx|abc)def", "abcdef");