diff --git a/tests/unistd_test.cpp b/tests/unistd_test.cpp
index 6d7e687..293b45a 100644
--- a/tests/unistd_test.cpp
+++ b/tests/unistd_test.cpp
@@ -1648,3 +1648,23 @@
   auto t1 = std::chrono::steady_clock::now();
   ASSERT_GE(t1-t0, 1s);
 }
+
+TEST(UNISTD_TEST, close_range) {
+#if defined(__GLIBC__)
+  GTEST_SKIP() << "glibc too old";
+#else   // __GLIBC__
+  int fd = open("/proc/version", O_RDONLY);
+  ASSERT_GE(fd, 0);
+
+  // Try to close the file descriptor (this requires a 5.9+ kernel)
+  if (close_range(fd, fd, 0) == 0) {
+    // we can't close it *again*
+    ASSERT_EQ(close(fd), -1);
+    ASSERT_EQ(errno, EBADF);
+  } else {
+    ASSERT_EQ(errno, ENOSYS);
+    // since close_range() failed, we can close it normally
+    ASSERT_EQ(close(fd), 0);
+  }
+#endif  // __GLIBC__
+}