From f422845b9c4c4735061b0ca5f197c999299d0da5 Mon Sep 17 00:00:00 2001
From: Ilya Gorbunov <ilya.gorbunov@jetbrains.com>
Date: Tue, 28 Jun 2022 18:55:55 +0300
Subject: [PATCH] Test open FP ranges with NaN bound

#KT-52932
---
 libraries/stdlib/test/ranges/RangeTest.kt | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/libraries/stdlib/test/ranges/RangeTest.kt b/libraries/stdlib/test/ranges/RangeTest.kt
index 5a90765f02f..48838943ec6 100644
--- a/libraries/stdlib/test/ranges/RangeTest.kt
+++ b/libraries/stdlib/test/ranges/RangeTest.kt
@@ -243,6 +243,11 @@ public class RangeTest {
         assertFalse(Double.NaN in openRange)
         assertFalse(Float.POSITIVE_INFINITY in openRange)
 
+        val openNanRange = 0.0..<Double.NaN
+        assertFalse(1.0 in openNanRange)
+        assertFalse(Double.NaN in openNanRange)
+        assertFalse(Float.NaN in openNanRange)
+        assertTrue(openNanRange.isEmpty())
     }
 
     @Test fun floatRange() {
@@ -292,6 +297,11 @@ public class RangeTest {
         assertFalse(Float.POSITIVE_INFINITY in openRange)
         assertFalse(Float.NEGATIVE_INFINITY in openRange)
         assertFalse(Float.NaN in openRange)
+
+        val openNanRange = 0.0F..<Float.NaN
+        assertFalse(1.0F in openNanRange)
+        assertFalse(Float.NaN in openNanRange)
+        assertTrue(openNanRange.isEmpty())
     }
 
     @Test