Remove extra incorrect replace_spaces in key serialization.

Fixes #38

Thanks to @pooyamb for reporting.

2 files changed, 27 insertions, 1 deletions

diff --git a/src/ser.rs b/src/ser.rs
index 50d3688..a9f046d 100644
--- a/src/ser.rs
+++ b/src/ser.rs
@@ -124,7 +124,8 @@ fn replace_space(input: &str) -> Cow<str> {
 impl<'a, W: 'a + Write> QsSerializer<'a, W> {
     fn extend_key(&mut self, newkey: &str) {
         let newkey =
-            percent_encode(replace_space(newkey).as_bytes(), QS_ENCODE_SET).collect::<Cow<str>>();
+            percent_encode(newkey.as_bytes(), QS_ENCODE_SET)
+            .collect::<Cow<str>>();
         let key = if let Some(ref key) = self.key {
             format!("{}[{}]", key, newkey).into()
         } else {
diff --git a/tests/test_regression.rs b/tests/test_regression.rs
new file mode 100644
index 0000000..7d2f492
--- /dev/null
+++ b/tests/test_regression.rs
@@ -0,0 +1,25 @@
+extern crate serde;
+#[macro_use]
+extern crate serde_derive;
+extern crate serde_qs as qs;
+
+#[test]
+fn double_encoding_keys() {
+    #[derive(Debug, Serialize, Deserialize, PartialEq)]
+    struct Human {
+        #[serde(rename = "full name")]
+        name: String,
+    }
+
+    let human = Human {
+        name: "John Doe".to_string(),
+    };
+
+    let encoded = serde_qs::to_string(&human).unwrap();
+    print!("{}", encoded);
+    assert_eq!(
+        serde_qs::from_str::<Human>(&encoded)
+            .unwrap(),
+        human
+    );
+}