diff --git a/libc/test/src/math/fabsl_test.cpp b/libc/test/src/math/fabsl_test.cpp
@@ -9,27 +9,32 @@
 #include "include/math.h"
 #include "src/math/fabsl.h"
 #include "utils/FPUtil/FPBits.h"
+#include "utils/FPUtil/TestHelpers.h"
 #include "utils/MPFRWrapper/MPFRUtils.h"
 #include "utils/UnitTest/Test.h"
 
 using FPBits = __llvm_libc::fputil::FPBits<long double>;
 
+static const long double zero = FPBits::zero();
+static const long double negZero = FPBits::negZero();
+static const long double nan = FPBits::buildNaN(1);
+static const long double inf = FPBits::inf();
+static const long double negInf = FPBits::negInf();
+
 namespace mpfr = __llvm_libc::testing::mpfr;
 
 // Zero tolerance; As in, exact match with MPFR result.
 static constexpr mpfr::Tolerance tolerance{mpfr::Tolerance::floatPrecision, 0,
                                            0};
 
 TEST(FabslTest, SpecialNumbers) {
-  EXPECT_TRUE(FPBits::zero() == __llvm_libc::fabsl(FPBits::zero()));
-  EXPECT_TRUE(FPBits::zero() == __llvm_libc::fabsl(FPBits::negZero()));
+  EXPECT_FP_EQ(nan, __llvm_libc::fabsl(nan));
 
-  EXPECT_TRUE(FPBits::inf() == __llvm_libc::fabsl(FPBits::inf()));
-  EXPECT_TRUE(FPBits::inf() == __llvm_libc::fabsl(FPBits::negInf()));
+  EXPECT_FP_EQ(inf, __llvm_libc::fabsl(inf));
+  EXPECT_FP_EQ(inf, __llvm_libc::fabsl(negInf));
 
-  long double nan = FPBits::buildNaN(1);
-  ASSERT_TRUE(isnan(nan) != 0);
-  ASSERT_TRUE(isnan(__llvm_libc::fabsl(nan)) != 0);
+  EXPECT_FP_EQ(zero, __llvm_libc::fabsl(zero));
+  EXPECT_FP_EQ(zero, __llvm_libc::fabsl(negZero));
 }
 
 TEST(FabslTest, InLongDoubleRange) {