fix parse error when no status text. close fortanix#4

Author: algesten

src/response.rs

@@ -457,18 +457,13 @@ fn parse_status_line(line: &str) -> Result<((usize, usize), u16), Error> {
     let index1 = http_version.len();
 
     let status = split.next().ok_or_else(|| Error::BadStatus)?;
-    if status.len() < 3 {
+    if status.len() < 2 {
         return Err(Error::BadStatus);
     }
     let index2 = index1 + status.len();
 
     let status = status.parse::<u16>().map_err(|_| Error::BadStatus)?;
 
-    let status_text = split.next().ok_or_else(|| Error::BadStatus)?;
-    if status_text.is_empty() {
-        return Err(Error::BadStatus);
-    }
-
     Ok(((index1, index2), status))
 }
 

src/test/simple.rs

@@ -138,3 +138,15 @@ fn non_ascii_header() {
     assert_eq!(resp.status(), 500);
     assert_eq!(resp.status_text(), "Bad Header");
 }
+
+#[test]
+pub fn no_status_text() {
+    // this one doesn't return the status text
+    // let resp = get("https://www.okex.com/api/spot/v3/products")
+    test::set_handler("/no_status_text", |_unit| {
+        test::make_response(200, "", vec![], vec![])
+    });
+    let resp = get("test://host/no_status_text").call();
+    assert!(resp.ok());
+    assert_eq!(resp.status(), 200);
+}