Initial work on standard library

tests/standardLibraries/BasicLibrary.cpp

@@ -0,0 +1,44 @@
+#ifdef TESTS_BUILD
+#include <catch.hpp>
+#include "../src/Script.hpp"
+#include <cstring>
+
+using namespace Porygon;
+
+TEST_CASE( "Error func throws error", "[integration]" ) {
+    Script* script = Script::Create(u"error('foo bar')");
+    REQUIRE(!script->Diagnostics -> HasErrors());
+    try{
+        script -> Evaluate();
+        throw;
+    } catch (const EvaluationException& e){
+        auto err = e.what();
+        REQUIRE(std::strcmp(err, "An evaluation exception occurred: foo bar") == 0);
+    }
+    delete script;
+}
+
+TEST_CASE( "Assert func throws error if argument is false", "[integration]" ) {
+    Script* script = Script::Create(u"assert(false)");
+    REQUIRE(!script->Diagnostics -> HasErrors());
+    try{
+        script -> Evaluate();
+        throw;
+    } catch (const EvaluationException& e){
+        auto err = e.what();
+        REQUIRE(std::strcmp(err, "An evaluation exception occurred: assertion failed!") == 0);
+    }
+    delete script;
+}
+
+TEST_CASE( "Assert func does not throw if argument is true", "[integration]" ) {
+    Script* script = Script::Create(u"assert(true)");
+    REQUIRE(!script->Diagnostics -> HasErrors());
+    script -> Evaluate();
+    delete script;
+}
+
+
+
+#endif
+