Add tests for unused structs

savefile-test/src/lib.rs

@@ -1,7 +1,7 @@
+#![cfg(test)]
 #![allow(unused_imports)]
 #![cfg_attr(feature = "nightly", feature(test))]
 #![deny(warnings)]
-#![cfg_attr(miri, allow(dead_code))]
 
 #[cfg(test)]
 extern crate insta;
@@ -1399,6 +1399,13 @@ impl Introspect for ExampleWithoutAutomaticIntrospect {
     }
 }
 
+#[test]
+fn roundtrip_example_without_introspect() {
+    roundtrip(ExampleWithoutAutomaticIntrospect{
+        x: 42
+    });
+}
+
 #[cfg(test)]
 fn speed(len: usize, time: std::time::Duration) -> String {
     let total_seconds = time.as_micros() as f64 * 1e-6;

savefile-test/src/test_nested_non_repr_c.rs

@@ -1,3 +1,5 @@
+#![cfg(test)]
+use roundtrip;
 use savefile::prelude::*;
 
 #[derive(Clone, Copy, Debug, PartialEq, Savefile)]
@@ -22,6 +24,17 @@ fn test_misaligned1() {
     assert_eq!(unsafe { CorrectlyAligned::repr_c_optimization_safe(0).is_yes() }, true);
 }
 
+#[test]
+fn roundtrip_correctly_aligned() {
+    roundtrip(CorrectlyAligned{
+        x: 1, y: 2
+    });
+    roundtrip(Inner{
+        misaligner: 43,
+        x: 42
+    });
+}
+
 #[derive(Clone, Copy, Debug, PartialEq, Savefile)]
 //#[savefile_unsafe_and_fast] This now causes compilation failure, so test doesn't really work
 struct Inner2 {
@@ -35,3 +48,11 @@ fn test_misaligned2() {
     assert_eq!(unsafe { Inner2::repr_c_optimization_safe(0).is_yes() }, false);
     assert_eq!(unsafe { CorrectlyAligned::repr_c_optimization_safe(0).is_yes() }, true);
 }
+
+#[test]
+fn test_roundtrip_inner2() {
+    roundtrip(Inner2 {
+        x: 47,
+        misaligner: 48
+    });
+}

savefile-test/src/test_nested_repr_c.rs

@@ -1,5 +1,7 @@
+#![cfg(test)]
 use savefile::prelude::*;
 
+
 #[derive(Clone, Copy, Debug, PartialEq, Savefile)]
 #[savefile_unsafe_and_fast]
 struct Inner {