Merge pull request #359 from matthiasbeyer/add-test-deser-unsigned-ints

Add test to deserialize unsigned int

tests/unsigned_int.rs

@@ -0,0 +1,48 @@
+#![cfg(feature = "preserve_order")]
+
+extern crate indexmap;
+
+#[derive(serde::Deserialize, Eq, PartialEq, Debug)]
+struct Container<T> {
+    inner: T,
+}
+
+#[derive(serde::Deserialize, Eq, PartialEq, Debug)]
+struct Unsigned {
+    unsigned: u16,
+}
+
+impl Default for Unsigned {
+    fn default() -> Self {
+        Self { unsigned: 128 }
+    }
+}
+
+impl From<Unsigned> for config::ValueKind {
+    fn from(unsigned: Unsigned) -> Self {
+        let mut properties = indexmap::IndexMap::new();
+        properties.insert(
+            "unsigned".to_string(),
+            config::Value::from(unsigned.unsigned),
+        );
+
+        Self::Table(properties)
+    }
+}
+
+#[test]
+fn test_deser_unsigned_int() {
+    let container = Container {
+        inner: Unsigned::default(),
+    };
+
+    let built = config::Config::builder()
+        .set_default("inner", Unsigned::default())
+        .unwrap()
+        .build()
+        .unwrap()
+        .try_deserialize::<Container<Unsigned>>()
+        .unwrap();
+
+    assert_eq!(container, built);
+}