Cleans up basic library handling, implements print function

tests/standardLibraries/BasicLibrary.cpp

@@ -1,6 +1,7 @@
 #ifdef TESTS_BUILD
 #include <catch.hpp>
 #include "../src/Script.hpp"
+#include "../../src/GlobalScriptOptions.hpp"
 #include <cstring>
 
 using namespace Porygon;
@@ -38,6 +39,30 @@ TEST_CASE( "Assert func does not throw if argument is true", "[integration]" ) {
     delete script;
 }
 
+TEST_CASE( "Assert func works with second argument", "[integration]" ) {
+    Script* script = Script::Create(u"assert(false, 'foobar')");
+    REQUIRE(!script->Diagnostics -> HasErrors());
+    try{
+        script -> Evaluate();
+        throw;
+    } catch (const EvaluationException& e){
+        auto err = e.what();
+        REQUIRE(std::strcmp(err, "An evaluation exception occurred: foobar") == 0);
+    }
+    delete script;
+}
+
+TEST_CASE( "Print func works", "[integration]" ) {
+    Script* script = Script::Create(u"print('foobar')");
+    REQUIRE(!script->Diagnostics -> HasErrors());
+    auto stream = new std::stringstream();
+    GlobalScriptOptions::SetPrintStream(stream);
+    script->Evaluate();
+    auto printVal = stream->str();
+    REQUIRE(printVal == "foobar\n");
+    delete script;
+}
+
 
 
 #endif