diff --git a/src/generation/generator.hpp b/src/generation/generator.hpp
index db95b86..75c95d8 100644
--- a/src/generation/generator.hpp
+++ b/src/generation/generator.hpp
@@ -56,9 +56,7 @@ class Generator {
     llvm::InitializeNativeTargetAsmParser();
   }
 
-  void compile() {
-
-    llvm::LLVMContext context;
+  std::unique_ptr<llvm::Module> buildModule(llvm::LLVMContext& context) {
 
     std::unique_ptr<llvm::Module> module =
         std::make_unique<llvm::Module>("build", context);
@@ -360,6 +358,7 @@ class Generator {
           }
 
           builder.store(builder.add(lhs, rhs, outName), outUint.getAlloc());
+          break;
         }
         case StatementType::PRINT: {
           const PrintStatement& printStatement =
@@ -408,8 +407,16 @@ class Generator {
       builder.createReturn(returnValue);
     }
 
+    return module;
+  }
+
+  void print_module(std::unique_ptr<llvm::Module> module) {
     std::cout << "-- LLVM IR --" << std::endl;
     module->print(llvm::outs(), nullptr);
+  }
+
+  void compile(llvm::LLVMContext& context,
+               std::unique_ptr<llvm::Module> module) {
 
     auto targetTriple = llvm::Triple(llvm::sys::getDefaultTargetTriple());
     module->setTargetTriple(targetTriple);
@@ -422,7 +429,7 @@ class Generator {
     auto CPU = "generic";
     auto features = "";
     llvm::TargetOptions opt;
-    std::optional<llvm::Reloc::Model> RM = std::nullopt;
+    std::optional<llvm::Reloc::Model> RM = llvm::Reloc::PIC_;
 
     llvm::TargetMachine* targetMachine =
         target->createTargetMachine(targetTriple, CPU, features, opt, RM);
diff --git a/src/main.cpp b/src/main.cpp
index 8b85e2e..965be31 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -4,6 +4,7 @@
 #include <llvm/Support/raw_ostream.h>
 
 #include <iostream>
+#include <memory>
 
 #include "./io/file_reader.hpp"
 #include "./lexer/lexer.hpp"
@@ -17,6 +18,14 @@ int main(const int argc, char* argv[]) {
     return 1;
   }
 
+  bool verbose = false;
+
+  if (argc == 3) {
+    if (std::string(argv[2]) == "-v") {
+      verbose = true;
+    }
+  }
+
   FileReader fileReader(argv[1]);
   if (!fileReader.isOpen()) {
     std::cerr << "Input file failed to open\n";
@@ -25,14 +34,26 @@ int main(const int argc, char* argv[]) {
 
   Lexer lexer(fileReader.readAll());
   TokenContainer tokens = lexer.makeTokenList();
-  tokens.print();
+  if (verbose) {
+    tokens.print();
+  }
 
   AbstractSyntaxTree ast(tokens);
 
   Program program = ast.parse();
-  program.print();
+  if (verbose) {
+    program.print();
+  }
 
   Generator generator(program);
   generator.init();
-  generator.compile();
+
+  llvm::LLVMContext context;
+  std::unique_ptr<llvm::Module> module = generator.buildModule(context);
+
+  if (verbose) {
+    generator.print_module(std::move(module));
+  }
+
+  generator.compile(context, std::move(module));
 }
\ No newline at end of file
diff --git a/src/syntax_analyser/abstract_syntax_tree.cpp b/src/syntax_analyser/abstract_syntax_tree.cpp
index afcce01..319ced6 100644
--- a/src/syntax_analyser/abstract_syntax_tree.cpp
+++ b/src/syntax_analyser/abstract_syntax_tree.cpp
@@ -118,8 +118,6 @@ std::vector<std::unique_ptr<Statement>> AbstractSyntaxTree::evaluateOperations(
     const Token& secondToken =
         static_cast<const Token&>(tokens[tokensIndex + 1].get());
 
-    std::cout << secondToken.tokenType << "\n";
-
     if (secondToken.tokenType != TokenType::NUMBER &&
         secondToken.tokenType != TokenType::IDENTIFIER) {
       throw std::runtime_error(
@@ -132,9 +130,6 @@ std::vector<std::unique_ptr<Statement>> AbstractSyntaxTree::evaluateOperations(
           std::make_unique<IdentifierValue>(outputIdentifier),
           std::make_unique<NumberValue>(
               (static_cast<const NumberToken&>(secondToken)).value)));
-
-      std::cout << outputIdentifier << " + "
-                << (static_cast<const NumberToken&>(secondToken)).value << "\n";
     }
 
     if (secondToken.tokenType == TokenType::IDENTIFIER) {
@@ -160,10 +155,8 @@ Program AbstractSyntaxTree::parse() {
 
     const Token& token = this->tokenContainer.view(i);
     buffer.push_back(token);
-    std::cout << "Reading " << token.tokenType << std::endl;
 
     if (token.tokenType == TokenType::END_OF_LINE) {
-      std::cout << "Reading end of line\n";
       if (buffer[0].get().tokenType == TokenType::PRIMITIVE &&
           buffer[1].get().tokenType == TokenType::IDENTIFIER &&
           buffer[2].get().tokenType == TokenType::OPERATOR) {
@@ -246,6 +239,5 @@ Program AbstractSyntaxTree::parse() {
       buffer.clear();
     }
   }
-  std::cout << "program size: " << program.size() << "\n";
   return program;
 }
\ No newline at end of file
diff --git a/tests/system.cpp b/tests/system.cpp
new file mode 100644
index 0000000..b231b0b
--- /dev/null
+++ b/tests/system.cpp
@@ -0,0 +1,81 @@
+#include <catch2/catch_test_macros.hpp>
+
+#include "generation/generator.hpp"
+#include "io/file_reader.hpp"
+#include <catch2/catch_test_macros.hpp>
+#include <catch2/internal/catch_test_failure_exception.hpp>
+#include <catch2/reporters/catch_reporter_event_listener.hpp>
+#include <catch2/reporters/catch_reporter_registrars.hpp>
+#include <csignal>
+#include <cstdlib>
+#include <filesystem>
+
+class CompilerBuildListener : public Catch::EventListenerBase {
+public:
+  using Catch::EventListenerBase::EventListenerBase;
+  void testRunStarting(const Catch::TestRunInfo& testRunInfo) override {
+    if (std::filesystem::exists("./bin/main")) {
+      return;
+    }
+    std::cerr << "Compiler not found";
+    std::exit(1);
+  }
+};
+
+CATCH_REGISTER_LISTENER(CompilerBuildListener)
+
+std::string exec(std::string cmd) {
+  std::array<char, 128> buffer;
+  std::string result;
+
+  std::unique_ptr<FILE, decltype(&pclose)> pipe(popen(cmd.c_str(), "r"),
+                                                pclose);
+
+  while (fgets(buffer.data(), buffer.size(), pipe.get()) != nullptr) {
+    result += buffer.data();
+  }
+  return result;
+}
+
+void checkOutput(std::string filePath, std::string expectedOut) {}
+
+TEST_CASE("Run \"./examples/addition.lang\"", "[system]") {
+  std::system("./bin/main ./examples/addition.lang");
+  int out = std::system("./main.out");
+  REQUIRE(out != -1);
+  REQUIRE(WIFEXITED(out));
+  REQUIRE(WEXITSTATUS(out) == 5);
+};
+
+TEST_CASE("Run \"./examples/integer_primitives.lang\"", "[system]") {
+  std::system("./bin/main ./examples/integer_primitives.lang");
+  int out = std::system("./main.out");
+  REQUIRE(out != -1);
+  REQUIRE(WIFEXITED(out));
+  REQUIRE(WEXITSTATUS(out) == 0);
+};
+
+TEST_CASE("Run \"./examples/print.lang\"", "[system]") {
+  std::system("./bin/main ./examples/print.lang");
+  std::string out = exec("./main.out");
+
+  REQUIRE(out == "1\n2\n");
+};
+
+TEST_CASE("Run \"./examples/transitive_assignment.lang\"", "[system]") {
+  std::system("./bin/main ./examples/transitive_assignment.lang");
+  int out = std::system("./main.out");
+
+  REQUIRE(out != -1);
+  REQUIRE(WIFEXITED(out));
+  REQUIRE(WEXITSTATUS(out) == 1);
+};
+
+TEST_CASE("Run \"./examples/variable_declaration.lang\"", "[system]") {
+  std::system("./bin/main ./examples/variable_declaration.lang");
+  int out = std::system("./main.out");
+
+  REQUIRE(out != -1);
+  REQUIRE(WIFEXITED(out));
+  REQUIRE(WEXITSTATUS(out) == 1);
+};