Add tests for wrapping integers

Signed-off-by: Matthias Beyer <mail@beyermatthias.de>

1 files changed, 37 insertions, 0 deletions

diff --git a/tests/integer_range.rs b/tests/integer_range.rs
new file mode 100644
index 0000000..626f159
--- /dev/null
+++ b/tests/integer_range.rs
@@ -0,0 +1,37 @@
+extern crate config;
+
+use config::*;
+
+#[test]
+fn wrapping_u16() {
+    let c = Config::builder()
+        .add_source(config::File::from_str(
+            r#"
+            [settings]
+            port = 66000
+            "#,
+            config::FileFormat::Toml,
+        ))
+        .build()
+        .unwrap();
+
+    let port: u16 = c.get("settings.port").unwrap();
+    assert_eq!(port, 464);
+}
+
+#[test]
+fn nonwrapping_u32() {
+    let c = Config::builder()
+        .add_source(config::File::from_str(
+            r#"
+            [settings]
+            port = 66000
+            "#,
+            config::FileFormat::Toml,
+        ))
+        .build()
+        .unwrap();
+
+    let port: u32 = c.get("settings.port").unwrap();
+    assert_eq!(port, 66000);
+}