diff --git a/tests/by-util/test_printf.rs b/tests/by-util/test_printf.rs
index 5d1d300dd..098218d6c 100644
--- a/tests/by-util/test_printf.rs
+++ b/tests/by-util/test_printf.rs
@@ -886,6 +886,30 @@ fn float_with_zero_precision_should_pad() {
         .stdout_only("-01");
 }
 
+#[test]
+fn float_non_finite() {
+    new_ucmd!()
+        .args(&[
+            "%f %f %F %f %f %F",
+            "nan",
+            "-nan",
+            "nan",
+            "inf",
+            "-inf",
+            "inf",
+        ])
+        .succeeds()
+        .stdout_only("nan -nan NAN inf -inf INF");
+}
+
+#[test]
+fn float_zero_neg_zero() {
+    new_ucmd!()
+        .args(&["%f %f", "0.0", "-0.0"])
+        .succeeds()
+        .stdout_only("0.000000 -0.000000");
+}
+
 #[test]
 fn precision_check() {
     new_ucmd!()