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-rw-r--r--library/std/src/f64/tests.rs16
1 files changed, 16 insertions, 0 deletions
diff --git a/library/std/src/f64/tests.rs b/library/std/src/f64/tests.rs
index 5b039d445..53d351cce 100644
--- a/library/std/src/f64/tests.rs
+++ b/library/std/src/f64/tests.rs
@@ -199,6 +199,7 @@ fn test_ceil() {
#[test]
fn test_round() {
+ assert_approx_eq!(2.5f64.round(), 3.0f64);
assert_approx_eq!(1.0f64.round(), 1.0f64);
assert_approx_eq!(1.3f64.round(), 1.0f64);
assert_approx_eq!(1.5f64.round(), 2.0f64);
@@ -212,6 +213,21 @@ fn test_round() {
}
#[test]
+fn test_round_ties_even() {
+ assert_approx_eq!(2.5f64.round_ties_even(), 2.0f64);
+ assert_approx_eq!(1.0f64.round_ties_even(), 1.0f64);
+ assert_approx_eq!(1.3f64.round_ties_even(), 1.0f64);
+ assert_approx_eq!(1.5f64.round_ties_even(), 2.0f64);
+ assert_approx_eq!(1.7f64.round_ties_even(), 2.0f64);
+ assert_approx_eq!(0.0f64.round_ties_even(), 0.0f64);
+ assert_approx_eq!((-0.0f64).round_ties_even(), -0.0f64);
+ assert_approx_eq!((-1.0f64).round_ties_even(), -1.0f64);
+ assert_approx_eq!((-1.3f64).round_ties_even(), -1.0f64);
+ assert_approx_eq!((-1.5f64).round_ties_even(), -2.0f64);
+ assert_approx_eq!((-1.7f64).round_ties_even(), -2.0f64);
+}
+
+#[test]
fn test_trunc() {
assert_approx_eq!(1.0f64.trunc(), 1.0f64);
assert_approx_eq!(1.3f64.trunc(), 1.0f64);