public function get_types_by_extension_test() { $this->assert_equal("image/jpeg", legal_file::get_types_by_extension("jpg")); // photo $this->assert_equal("video/x-flv", legal_file::get_types_by_extension("FLV")); // movie $this->assert_equal(null, legal_file::get_types_by_extension("php")); // invalid $this->assert_equal(null, legal_file::get_types_by_extension("php.flv")); // invalid w/ . // No extension returns full array $this->assert_equal(9, count(legal_file::get_types_by_extension())); }