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-rw-r--r--tests/test_xpath_functions.cpp9
1 files changed, 8 insertions, 1 deletions
diff --git a/tests/test_xpath_functions.cpp b/tests/test_xpath_functions.cpp
index 1d533b7..b0d0b52 100644
--- a/tests/test_xpath_functions.cpp
+++ b/tests/test_xpath_functions.cpp
@@ -446,7 +446,14 @@ TEST(xpath_string_substring)
CHECK_XPATH_STRING(c, STR("substring('abcd', 1, 0.5)"), STR("a"));
CHECK_XPATH_STRING(c, STR("substring('abcd', 10, -5)"), STR(""));
CHECK_XPATH_STRING(c, STR("substring('abcd', 0, -1)"), STR(""));
- CHECK_XPATH_STRING(c, STR("substring('abcd', -100, 100)"), STR("abcd"));
+ CHECK_XPATH_STRING(c, STR("substring('abcd', -100, 100)"), STR(""));
+ CHECK_XPATH_STRING(c, STR("substring('abcd', -100, 101)"), STR(""));
+ CHECK_XPATH_STRING(c, STR("substring('abcd', -100, 102)"), STR("a"));
+ CHECK_XPATH_STRING(c, STR("substring('abcd', -100, 103)"), STR("ab"));
+ CHECK_XPATH_STRING(c, STR("substring('abcd', -100, 104)"), STR("abc"));
+ CHECK_XPATH_STRING(c, STR("substring('abcd', -100, 105)"), STR("abcd"));
+ CHECK_XPATH_STRING(c, STR("substring('abcd', -100, 106)"), STR("abcd"));
+ CHECK_XPATH_STRING(c, STR("substring('abcd', -100, 1 div 0)"), STR("abcd"));
CHECK_XPATH_STRING(c, STR("substring('abcd', -1 div 0, 4)"), STR(""));
CHECK_XPATH_STRING(c, STR("substring('abcd', 1 div 0, 0 div 0)"), STR(""));
CHECK_XPATH_STRING(c, STR("substring('abcd', 0 div 0, 1)"), STR(""));