Index: test/std/numerics/numerics.abs/abs_tests.h
===================================================================
--- /dev/null
+++ test/std/numerics/numerics.abs/abs_tests.h
@@ -0,0 +1,16 @@
+#include <test_macros.h>
+#include <cassert>
+
+template<class In, class Out> 
+void general_test(Out f(In))
+{
+    for (In i = -50; i < 50; ++i)
+    {
+        auto res = f(i);
+        ASSERT_SAME_TYPE(decltype(res), Out);
+		if (i > 0)
+			assert(res == i);
+		else
+			assert(res == i - (i * 2));
+    }
+}
Index: test/std/numerics/numerics.abs/cinttypes.pass.cpp
===================================================================
--- /dev/null
+++ test/std/numerics/numerics.abs/cinttypes.pass.cpp
@@ -0,0 +1,9 @@
+#include "abs_tests.h"
+
+#include <cinttypes>
+
+int main()
+{
+    // general_test<std::intmax_t, std::intmax_t>(std::abs);
+    general_test<std::intmax_t, std::intmax_t>(std::imaxabs);
+}
Index: test/std/numerics/numerics.abs/cmath.pass.cpp
===================================================================
--- /dev/null
+++ test/std/numerics/numerics.abs/cmath.pass.cpp
@@ -0,0 +1,13 @@
+#include "abs_tests.h"
+
+#include <cmath>
+
+int main()
+{
+    general_test<float,             float>(std::abs);    
+    general_test<float,             float>(std::fabs);
+    general_test<float,             float>(std::fabsf);
+    general_test<double,           double>(std::fabs);
+    general_test<long double, long double>(std::fabs);
+    general_test<long double, long double>(std::fabsl);
+}
Index: test/std/numerics/numerics.abs/cstdlib.pass.cpp
===================================================================
--- /dev/null
+++ test/std/numerics/numerics.abs/cstdlib.pass.cpp
@@ -0,0 +1,13 @@
+#include "abs_tests.h"
+
+#include <cstdlib>
+    
+int main()
+{
+    general_test<int,             int>(std::abs);
+    general_test<long,           long>(std::abs);
+    general_test<long long, long long>(std::abs);
+
+    general_test<long,           long>(std::labs);
+    general_test<long long, long long>(std::llabs);
+}
\ No newline at end of file
Index: test/std/numerics/numerics.abs/stdlib.h.pass.cpp
===================================================================
--- /dev/null
+++ test/std/numerics/numerics.abs/stdlib.h.pass.cpp
@@ -0,0 +1,9 @@
+#include "abs_tests.h"
+
+#include <stdlib.h>
+
+int main()
+{
+    general_test<long,           long>(abs);
+    general_test<long long, long long>(abs);
+}
\ No newline at end of file