Add test of negative NaN

dtolnay · Oct 25, 2023 · e6f97e0 · e6f97e0
1 parent b9b01a1
commit e6f97e0
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Showing 2 changed files with 4 additions and 2 deletions.
diff --git a/tests/d2s_test.rs b/tests/d2s_test.rs
@@ -82,7 +82,8 @@ fn test_basic() {
     check!(-0.0);
     check!(1.0);
     check!(-1.0);
-    assert_eq!(pretty(f64::NAN), "NaN");
+    assert_eq!(pretty(f64::NAN.copysign(1.0)), "NaN");
+    assert_eq!(pretty(f64::NAN.copysign(-1.0)), "NaN");
     assert_eq!(pretty(f64::INFINITY), "inf");
     assert_eq!(pretty(f64::NEG_INFINITY), "-inf");
 }

diff --git a/tests/f2s_test.rs b/tests/f2s_test.rs
@@ -75,7 +75,8 @@ fn test_basic() {
     check!(-0.0);
     check!(1.0);
     check!(-1.0);
-    assert_eq!(pretty(f32::NAN), "NaN");
+    assert_eq!(pretty(f32::NAN.copysign(1.0)), "NaN");
+    assert_eq!(pretty(f32::NAN.copysign(-1.0)), "NaN");
     assert_eq!(pretty(f32::INFINITY), "inf");
     assert_eq!(pretty(f32::NEG_INFINITY), "-inf");
 }