From 9b08915a18086f6dc7df850c421f202cf6a00d8c Mon Sep 17 00:00:00 2001
From: David Tolnay <dtolnay@gmail.com>
Date: Tue, 31 Oct 2017 09:32:58 -0700
Subject: [PATCH] Add tests for std::num::Wrapping impls

---
 test_suite/tests/test_de.rs  | 15 +++++++++++++++
 test_suite/tests/test_ser.rs |  6 ++++++
 2 files changed, 21 insertions(+)

diff --git a/test_suite/tests/test_de.rs b/test_suite/tests/test_de.rs
index b8eca056b..da1dae3fa 100644
--- a/test_suite/tests/test_de.rs
+++ b/test_suite/tests/test_de.rs
@@ -17,6 +17,7 @@ use std::default::Default;
 use std::ffi::{CString, OsString};
 use std::rc::Rc;
 use std::sync::Arc;
+use std::num::Wrapping;
 
 #[cfg(feature = "unstable")]
 use std::ffi::CStr;
@@ -762,6 +763,14 @@ declare_tests! {
             Token::Bool(true),
         ],
     }
+    test_wrapping {
+        Wrapping(1usize) => &[
+            Token::U32(1),
+        ],
+        Wrapping(1usize) => &[
+            Token::U64(1),
+        ],
+    }
 }
 
 declare_tests! {
@@ -1169,4 +1178,10 @@ declare_error_tests! {
         ],
         "invalid type: sequence, expected unit struct UnitStruct",
     }
+    test_wrapping_overflow<Wrapping<u16>> {
+        &[
+            Token::U32(65536),
+        ],
+        "invalid value: integer `65536`, expected u16",
+    }
 }
diff --git a/test_suite/tests/test_ser.rs b/test_suite/tests/test_ser.rs
index 5659af0cf..4198d5668 100644
--- a/test_suite/tests/test_ser.rs
+++ b/test_suite/tests/test_ser.rs
@@ -16,6 +16,7 @@ use std::time::{Duration, UNIX_EPOCH};
 use std::ffi::CString;
 use std::rc::Rc;
 use std::sync::Arc;
+use std::num::Wrapping;
 
 #[cfg(unix)]
 use std::str;
@@ -399,6 +400,11 @@ declare_tests! {
             Token::Bool(true),
         ],
     }
+    test_wrapping {
+        Wrapping(1usize) => &[
+            Token::U64(1),
+        ],
+    }
 }
 
 declare_tests! {