---

yaml
---
r: 148331
b: refs/heads/try2
c: 1130886
h: refs/heads/master
i:
  148329: 6707f3e
  148327: a9b56e7
v: v3

Author: c-a

[refs]

@@ -5,7 +5,7 @@ refs/heads/snap-stage3: 78a7676898d9f80ab540c6df5d4c9ce35bb50463
 refs/heads/try: 519addf6277dbafccbb4159db4b710c37eaa2ec5
 refs/tags/release-0.1: 1f5c5126e96c79d22cb7862f75304136e204f105
 refs/heads/ndm: f3868061cd7988080c30d6d5bf352a5a5fe2460b
-refs/heads/try2: e9b188a590cbfad840126ecad131eaa718ce6f5f
+refs/heads/try2: 1130886138f1dc6285ac2011c6bcabefd564bb7d
 refs/heads/dist-snap: ba4081a5a8573875fed17545846f6f6902c8ba8d
 refs/tags/release-0.2: c870d2dffb391e14efb05aa27898f1f6333a9596
 refs/tags/release-0.3: b5f0d0f648d9a6153664837026ba1be43d3e2503

branches/try2/src/libextra/ebml.rs

@@ -938,6 +938,54 @@ mod tests {
     use std::io::mem::MemWriter;
     use std::option::{None, Option, Some};
 
+    #[test]
+    fn test_vuint_at() {
+        let data = [
+            0x80,
+            0xff,
+            0x40, 0x00,
+            0x7f, 0xff,
+            0x20, 0x00, 0x00,
+            0x3f, 0xff, 0xff,
+            0x10, 0x00, 0x00, 0x00,
+            0x1f, 0xff, 0xff, 0xff
+        ];
+
+        let mut res: reader::Res;
+
+        // Class A
+        res = reader::vuint_at(data, 0);
+        assert_eq!(res.val, 0);
+        assert_eq!(res.next, 1);
+        res = reader::vuint_at(data, res.next);
+        assert_eq!(res.val, (1 << 7) - 1);
+        assert_eq!(res.next, 2);
+
+        // Class B
+        res = reader::vuint_at(data, res.next);
+        assert_eq!(res.val, 0);
+        assert_eq!(res.next, 4);
+        res = reader::vuint_at(data, res.next);
+        assert_eq!(res.val, (1 << 14) - 1);
+        assert_eq!(res.next, 6);
+
+        // Class C
+        res = reader::vuint_at(data, res.next);
+        assert_eq!(res.val, 0);
+        assert_eq!(res.next, 9);
+        res = reader::vuint_at(data, res.next);
+        assert_eq!(res.val, (1 << 21) - 1);
+        assert_eq!(res.next, 12);
+
+        // Class D
+        res = reader::vuint_at(data, res.next);
+        assert_eq!(res.val, 0);
+        assert_eq!(res.next, 16);
+        res = reader::vuint_at(data, res.next);
+        assert_eq!(res.val, (1 << 28) - 1);
+        assert_eq!(res.next, 20);
+    }
+
     #[test]
     fn test_option_int() {
         fn test_v(v: Option<int>) {