Fix Lower/UpperExp formatting for integers and precision zero

[rust.git] / library / core / tests / fmt / num.rs

diff --git a/library/core/tests/fmt/num.rs b/library/core/tests/fmt/num.rs
index 275a1d062cafbb06d8c1c9186ae1d01728465918..41eaf5a487880ab660796dfd202147c69bd6cfb8 100644 (file)
--- a/library/core/tests/fmt/num.rs
+++ b/library/core/tests/fmt/num.rs
@@ -146,6 +146,7 @@ fn test_format_int_exp_precision() {
     assert_eq!(format!("{:.1000e}", 1), format!("1.{}e0", "0".repeat(1000)));
     //test zero precision
     assert_eq!(format!("{:.0e}", 1), format!("1e0",));
+    assert_eq!(format!("{:.0e}", 25), format!("3e1",));
 
     //test padding with precision (and sign)
     assert_eq!(format!("{:+10.3e}", 1), "  +1.000e0");