add test case for filter+count

2017-01-18 13:55:47 +01:00 · 2017-01-18 13:55:47 +01:00 · b40432c949
commit b40432c949
parent 27f76157aa
1 changed files with 6 additions and 0 deletions
--- a/src/libcoretest/iter.rs
+++ b/src/libcoretest/iter.rs
@ -191,6 +191,12 @@ fn test_iterator_enumerate_count() {
    assert_eq!(xs.iter().count(), 6);
 }

+#[test]
+fn test_iterator_filter_count() {
+    let xs = [0, 1, 2, 3, 4, 5, 6, 7, 8];
+    assert_eq!(xs.iter().filter(|x| x % 2 == 0).count(), 5);
+}
+
 #[test]
 fn test_iterator_peekable() {
    let xs = vec![0, 1, 2, 3, 4, 5];