---

yaml
---
r: 51299
b: refs/heads/incoming
c: 2889a8a
h: refs/heads/master
i:
  51297: 03014dc
  51295: 67f8bde
v: v3

Author: thestinger

[refs]

@@ -6,7 +6,7 @@ refs/heads/try: 8eb2bab100b42f0ba751552d8eff00eb2134c55a
 refs/tags/release-0.1: 1f5c5126e96c79d22cb7862f75304136e204f105
 refs/heads/ndm: f3868061cd7988080c30d6d5bf352a5a5fe2460b
 refs/heads/try2: 147ecfdd8221e4a4d4e090486829a06da1e0ca3c
-refs/heads/incoming: 66afa5d17a0d157de38e749851ed75b48f8fc3c4
+refs/heads/incoming: 2889a8a4e5a490cf650d3730bc05a1694a1d3310
 refs/heads/dist-snap: 8b98e5a296d95c5e832db0756828e5bec31c6f50
 refs/tags/release-0.2: c870d2dffb391e14efb05aa27898f1f6333a9596
 refs/tags/release-0.3: b5f0d0f648d9a6153664837026ba1be43d3e2503

branches/incoming/src/libstd/treemap.rs

@@ -1131,6 +1131,11 @@ mod test_set {
             check(a, b, expected, |x, y, z| x.intersection(y, z))
         }
 
+        check_intersection([], [], []);
+        check_intersection([1, 2, 3], [], []);
+        check_intersection([], [1, 2, 3], []);
+        check_intersection([2], [1, 2, 3], [2]);
+        check_intersection([1, 2, 3], [2], [2]);
         check_intersection([11, 1, 3, 77, 103, 5, -5],
                            [2, 11, 77, -9, -42, 5, 3],
                            [3, 5, 11, 77]);
@@ -1160,6 +1165,9 @@ mod test_set {
             check(a, b, expected, |x, y, z| x.symmetric_difference(y, z))
         }
 
+        check_symmetric_difference([], [], []);
+        check_symmetric_difference([1, 2, 3], [2], [1, 3]);
+        check_symmetric_difference([2], [1, 2, 3], [1, 3]);
         check_symmetric_difference([1, 3, 5, 9, 11],
                                    [-2, 3, 9, 14, 22],
                                    [-2, 1, 5, 11, 14, 22]);
@@ -1172,6 +1180,8 @@ mod test_set {
             check(a, b, expected, |x, y, z| x.union(y, z))
         }
 
+        check_union([], [], []);
+        check_union([1, 2, 3], [2], [1, 2, 3]);
         check_union([1, 3, 5, 9, 11, 16, 19, 24],
                     [-2, 1, 5, 9, 13, 19],
                     [-2, 1, 3, 5, 9, 11, 13, 16, 19, 24]);