diff --git a/examples/array_structs.reid b/examples/array_structs.reid
index 91b24dd..b7f9e94 100644
--- a/examples/array_structs.reid
+++ b/examples/array_structs.reid
@@ -18,7 +18,7 @@ fn main() -> u32 {
 
     let mut a = &mut value;
 
-    let test = *a.field;
+    *a.second[2] = 5;
 
-    return 0;
+    return *a.second[2];
 }
diff --git a/examples/cast.reid b/examples/cast.reid
index fc7ba7a..0a85a0a 100644
--- a/examples/cast.reid
+++ b/examples/cast.reid
@@ -8,11 +8,9 @@ fn other() -> i16 {
 }
 
 fn main() -> u32 {
-  let value = other() as u32;
-  let other_value = other() as f32;
-  let same_value = other() as i16;
 
-  let v = (allocate(4) as *u32);
+  let mut v = (allocate(4) as *u32);
+  v[0] = other() as u32;
 
   return v[0];
 }
diff --git a/reid/tests/e2e.rs b/reid/tests/e2e.rs
index b167fdb..abf94ef 100644
--- a/reid/tests/e2e.rs
+++ b/reid/tests/e2e.rs
@@ -1,4 +1,10 @@
-use std::{path::PathBuf, process::Command};
+use std::{
+    alloc::System,
+    path::PathBuf,
+    process::Command,
+    thread,
+    time::{Duration, SystemTime},
+};
 
 use reid::{
     compile_module,
@@ -25,15 +31,26 @@ fn test(source: &str, name: &str, expected_exit_code: i32) {
         let codegen = assert_err(mir_context.codegen(&context));
 
         let output = codegen.compile().output();
-        let in_path = PathBuf::from("/tmp/temp.o");
-        let out_path = in_path.with_extension("out");
+        let time = SystemTime::now();
+        let in_path = PathBuf::from(format!(
+            "/tmp/temp-{}.o",
+            time.duration_since(SystemTime::UNIX_EPOCH)
+                .unwrap()
+                .as_nanos()
+        ));
+
         std::fs::write(&in_path, &output.obj_buffer).expect("Could not write OBJ-file!");
+
+        let out_path = in_path.with_extension("out");
         LDRunner::from_command("ld")
             .with_library("c")
             .invoke(&in_path, &out_path);
+        std::fs::remove_file(in_path).unwrap();
 
-        let executed = Command::new(&out_path).output().unwrap();
-        assert_eq!(expected_exit_code, executed.status.code().unwrap());
+        let executed = Command::new(&out_path).output();
+        std::fs::remove_file(out_path).unwrap();
+
+        assert_eq!(expected_exit_code, executed.unwrap().status.code().unwrap());
 
         Ok::<(), ()>(())
     })))
@@ -43,64 +60,63 @@ fn test(source: &str, name: &str, expected_exit_code: i32) {
 fn arithmetic_compiles_well() {
     test(include_str!("../../examples/arithmetic.reid"), "test", 48);
 }
-// #[test]
-// fn array_compiles_well() {
-//     test(include_str!("../../examples/array.reid"), "test");
-// }
-// #[test]
-// fn array_structs_compiles_well() {
-//     test(include_str!("../../examples/array_structs.reid"), "test");
-// }
-// #[test]
-// fn borrow_compiles_well() {
-//     test(include_str!("../../examples/borrow.reid"), "test");
-// }
-// #[test]
-// fn borrow_hard_compiles_well() {
-//     test(include_str!("../../examples/borrow_hard.reid"), "test");
-// }
-// #[test]
-// fn cast_compiles_well() {
-//     test(include_str!("../../examples/cast.reid"), "test");
-// }
-// #[test]
-// fn char_compiles_well() {
-//     test(include_str!("../../examples/char.reid"), "test");
-// }
-// #[test]
-// fn div_mod_compiles_well() {
-//     test(include_str!("../../examples/div_mod.reid"), "test");
-// }
-// #[test]
-// fn fibonacci_compiles_well() {
-//     test(include_str!("../../examples/fibonacci.reid"), "test");
-// }
-// #[test]
-// fn float_compiles_well() {
-//     test(include_str!("../../examples/float.reid"), "test");
-// }
-// #[test]
-// fn hello_world_compiles_well() {
-//     test(include_str!("../../examples/hello_world.reid"), "test");
-// }
-// #[test]
-// fn mutable_compiles_well() {
-//     test(include_str!("../../examples/mutable.reid"), "test");
-// }
-
-// #[test]
-// fn ptr_compiles_well() {
-//     test(include_str!("../../examples/ptr.reid"), "test");
-// }
-// #[test]
-// fn std_test_compiles_well() {
-//     test(include_str!("../../examples/std_test.reid"), "test");
-// }
-// #[test]
-// fn strings_compiles_well() {
-//     test(include_str!("../../examples/strings.reid"), "test");
-// }
-// #[test]
-// fn struct_compiles_well() {
-//     test(include_str!("../../examples/struct.reid"), "test");
-// }
+#[test]
+fn array_structs_compiles_well() {
+    test(include_str!("../../examples/array_structs.reid"), "test", 5);
+}
+#[test]
+fn array_compiles_well() {
+    test(include_str!("../../examples/array.reid"), "test", 3);
+}
+#[test]
+fn borrow_compiles_well() {
+    test(include_str!("../../examples/borrow.reid"), "test", 17);
+}
+#[test]
+fn borrow_hard_compiles_well() {
+    test(include_str!("../../examples/borrow_hard.reid"), "test", 17);
+}
+#[test]
+fn cast_compiles_well() {
+    test(include_str!("../../examples/cast.reid"), "test", 6);
+}
+#[test]
+fn char_compiles_well() {
+    test(include_str!("../../examples/char.reid"), "test", 98);
+}
+#[test]
+fn div_mod_compiles_well() {
+    test(include_str!("../../examples/div_mod.reid"), "test", 12);
+}
+#[test]
+fn fibonacci_compiles_well() {
+    test(include_str!("../../examples/fibonacci.reid"), "test", 1);
+}
+#[test]
+fn float_compiles_well() {
+    test(include_str!("../../examples/float.reid"), "test", 1);
+}
+#[test]
+fn hello_world_compiles_well() {
+    test(include_str!("../../examples/hello_world.reid"), "test", 0);
+}
+#[test]
+fn mutable_compiles_well() {
+    test(include_str!("../../examples/mutable.reid"), "test", 21);
+}
+#[test]
+fn ptr_compiles_well() {
+    test(include_str!("../../examples/ptr.reid"), "test", 5);
+}
+#[test]
+fn std_test_compiles_well() {
+    test(include_str!("../../examples/std_test.reid"), "test", 3);
+}
+#[test]
+fn strings_compiles_well() {
+    test(include_str!("../../examples/strings.reid"), "test", 5);
+}
+#[test]
+fn struct_compiles_well() {
+    test(include_str!("../../examples/struct.reid"), "test", 17);
+}