using fixtures (not super necessary, but nice)

test/parser/utils.hpp

@@ -1,6 +1,28 @@
 #include "ast/errors/error.hpp"
+#include "lexer/lexer.hpp"
+#include "parser/parser.hpp"
 
 #include <doctest.h>
+#include <sstream>
 #include <vector>
 
 void check_parser_errors(const std::vector<ast::error::error*>& errors);
+
+struct ParserFixture {
+    std::stringstream input;
+    lexer::lexer* l = nullptr;
+    parser::parser* p = nullptr;
+
+    ParserFixture() = default;
+
+    void setup(std::string source) {
+        input << source;
+        l = new lexer::lexer{input};
+        p = new parser::parser(*l);
+    }
+
+    ~ParserFixture() {
+        delete l;
+        delete p;
+    }
+};