[libc][math][c23] Add MPFR unit test for f16sqrtf (#97062)

Author: overmighty

libc/test/src/math/CMakeLists.txt

@@ -2065,6 +2065,19 @@ add_fp_unittest(
     libc.src.math.f16sqrt
 )
 
+add_fp_unittest(
+  f16sqrtf_test
+  NEED_MPFR
+  SUITE
+    libc-math-unittests
+  SRCS
+    f16sqrtf_test.cpp
+  HDRS
+    SqrtTest.h
+  DEPENDS
+    libc.src.math.f16sqrtf
+)
+
 add_fp_unittest(
   f16sqrtl_test
   NEED_MPFR

libc/test/src/math/f16sqrtf_test.cpp

@@ -0,0 +1,13 @@
+//===-- Unittests for f16sqrtf --------------------------------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#include "SqrtTest.h"
+
+#include "src/math/f16sqrtf.h"
+
+LIST_NARROWING_SQRT_TESTS(float16, float, LIBC_NAMESPACE::f16sqrtf)