tests: add more strings tests + catched bug in strip()

just made me realize that adding tests is important

Author: Toni500github

tests/test_util.cpp

@@ -6,11 +6,21 @@ std::string tmp;
 
 TEST_CASE( "util.cpp test suitcase", "[Util]" ) {
     SECTION( "String asserts" ) {
+        std::string strip_str{"   strip_\tthis_\nstring"};
+        strip(strip_str);
+        std::string replace_str_str{"replace foo and foo with bar"};
+        replace_str(replace_str_str, "foo", "bar");
         std::string env = std::getenv("HOME");
         std::string path = "~/.config/rule34";
+
         REQUIRE(hasEnding("I want the end", "end"));
         REQUIRE(hasStart("And now the begin, then  I want the end", "And"));
         REQUIRE(expandVar(path) == env + "/.config/rule34");
         REQUIRE(read_shell_exec("echo hello") == "hello");
+        REQUIRE(split("this;should;be;a;vector", ';') == std::vector<std::string>{"this", "should", "be", "a", "vector"});
+        REQUIRE(strip_str == "strip_this_string");
+        REQUIRE(replace_str_str == "replace bar and bar with bar");
+        REQUIRE(str_tolower("ThIS SHouLD Be LOWER") == "this should be lower");
+        REQUIRE(str_toupper("ThIS SHouLD Be UPPER") == "THIS SHOULD BE UPPER");
     }
 }