Added missing files

tests/test_common.h

@@ -0,0 +1,32 @@
+void replace_one_substr(void **state);
+void replace_one_substr_beginning(void **state);
+void replace_one_substr_end(void **state);
+void replace_two_substr(void **state);
+void replace_char(void **state);
+void replace_when_none(void **state);
+void replace_when_match(void **state);
+void replace_when_string_empty(void **state);
+void replace_when_string_null(void **state);
+void replace_when_sub_empty(void **state);
+void replace_when_sub_null(void **state);
+void replace_when_new_empty(void **state);
+void replace_when_new_null(void **state);
+void compare_win_nums_less(void **state);
+void compare_win_nums_equal(void **state);
+void compare_win_nums_greater(void **state);
+void compare_0s_equal(void **state);
+void compare_0_greater_than_1(void **state);
+void compare_1_less_than_0(void **state);
+void compare_0_less_than_11(void **state);
+void compare_11_greater_than_0(void **state);
+void compare_0_greater_than_9(void **state);
+void compare_9_less_than_0(void **state);
+void next_available_when_only_console(void **state);
+void next_available_3_at_end(void **state);
+void next_available_9_at_end(void **state);
+void next_available_0_at_end(void **state);
+void next_available_2_in_first_gap(void **state);
+void next_available_9_in_first_gap(void **state);
+void next_available_0_in_first_gap(void **state);
+void next_available_11_in_first_gap(void **state);
+void next_available_24_first_big_gap(void **state);