diff --git a/mem/mem_test.go b/mem/mem_test.go
index 4a8a95c..1e4b5ce 100644
--- a/mem/mem_test.go
+++ b/mem/mem_test.go
@@ -5,15 +5,23 @@ import (
 	"runtime"
 	"testing"
 
+	"github.com/shirou/gopsutil/internal/common"
 	"github.com/stretchr/testify/assert"
 )
 
+func skipIfNotImplementedErr(t *testing.T, err error) {
+	if err == common.ErrNotImplementedError {
+		t.Skip("not implemented")
+	}
+}
+
 func TestVirtual_memory(t *testing.T) {
 	if runtime.GOOS == "solaris" {
 		t.Skip("Only .Total is supported on Solaris")
 	}
 
 	v, err := VirtualMemory()
+	skipIfNotImplementedErr(t, err)
 	if err != nil {
 		t.Errorf("error %v", err)
 	}
@@ -44,7 +52,7 @@ func TestVirtual_memory(t *testing.T) {
 		"Total should be computable (%v): %v", totalStr, v)
 
 	assert.True(t, runtime.GOOS == "windows" || v.Free > 0)
-	assert.True(t, v.Available > v.Free,
+	assert.True(t, runtime.GOOS == "windows" || v.Available > v.Free,
 		"Free should be a subset of Available: %v", v)
 
 	inDelta := assert.InDelta
@@ -58,6 +66,7 @@ func TestVirtual_memory(t *testing.T) {
 
 func TestSwap_memory(t *testing.T) {
 	v, err := SwapMemory()
+	skipIfNotImplementedErr(t, err)
 	if err != nil {
 		t.Errorf("error %v", err)
 	}