Add some more tests

tests/simple.rs

@@ -27,4 +27,63 @@ fn test_allocate() {
     set_panic(true);
     let _x = Box::new(12);
     set_panic(false);
+}
+
+fn unit_result(b: bool) -> Result<(), ()> {
+    if b {
+        Ok(())
+    } else {
+        Err(())
+    }
+}
+
+#[test]
+fn test_unit_result() {
+    set_panic(true);
+    #[allow(unused)]
+    { black_box(unit_result(true)); }
+    black_box(unit_result(true)).unwrap();
+    #[allow(unused)]
+    { black_box(unit_result(false)); }
+    black_box(unit_result(false)).unwrap_err();
+    set_panic(false);
+}
+
+#[test]
+#[should_panic]
+fn test_vec_push() {
+    let mut v = Vec::new();
+    set_panic(true);
+    v.push(0);
+}
+
+#[test]
+fn test_vec_push_capacity() {
+    let mut v = Vec::with_capacity(1);
+    set_panic(true);
+    v.push(0);
+    v.pop();
+    v.push(0);
+    set_panic(false);
+}
+
+#[test]
+fn test_vec_with_zero() {
+    set_panic(true);
+    let _v: Vec<u8> = black_box(Vec::with_capacity(0));
+    set_panic(false);
+}
+
+#[test]
+fn test_vec_new() {
+    set_panic(true);
+    let _v: Vec<u8> = black_box(Vec::new());
+    set_panic(false);
+}
+
+#[test]
+#[should_panic]
+fn test_vec_with_one() {
+    set_panic(true);
+    let _v: Vec<u8> = Vec::with_capacity(1);
 }