refactor: make test a header

test.hpp

@@ -1,4 +1,6 @@
-#include <iostream>
+#ifndef RENDO_TEST_HPP
+#define RENDO_TEST_HPP
+
 #include <string>
 #include <vector>
 #include <functional>
@@ -12,7 +14,6 @@ class Test {
 		bool evaluate();
 };
 
-bool Test::evaluate() { return complete(); }
 
 class TestSuite {
 	private:
@@ -30,6 +31,12 @@ class TestSuite {
 		TestSuite& custom(std::string, std::function<bool()>);		
 };
 
+
+#ifdef RENDO_TEST_IMPLEMENTATION
+
+#include <iostream>
+bool Test::evaluate() { return complete(); }
+
 TestSuite::TestSuite(std::string name): suite_name(name) {
 	tests = {};
 }
@@ -68,3 +75,7 @@ void TestSuite::run() {
 	std::cout << "Tests completed: " << completed << "/" << amount << (completed == amount ? ". Well done!" : "... You've got a job to do") << std::endl;
 
 }
+
+#endif
+
+#endif