diff --git a/tests/helper/http.go b/tests/helper/http.go
deleted file mode 100644
index 3c570d1068..0000000000
--- a/tests/helper/http.go
+++ /dev/null
@@ -1,25 +0,0 @@
-package helper
-
-import (
-	"encoding/json"
-	"io/ioutil"
-	"net/http"
-	"testing"
-)
-
-func CreateTests(t *testing.T, uri string, value interface{}) {
-	resp, err := http.Get(uri)
-	if err != nil {
-		t.Error(err)
-
-		return
-	}
-	defer resp.Body.Close()
-
-	data, err := ioutil.ReadAll(resp.Body)
-
-	err = json.Unmarshal(data, &value)
-	if err != nil {
-		t.Error(err)
-	}
-}
diff --git a/tests/helper/readers.go b/tests/helper/readers.go
new file mode 100644
index 0000000000..03313aedae
--- /dev/null
+++ b/tests/helper/readers.go
@@ -0,0 +1,42 @@
+package helper
+
+import (
+	"encoding/json"
+	"io"
+	"io/ioutil"
+	"net/http"
+	"os"
+	"testing"
+)
+
+func readJSON(t *testing.T, reader io.Reader, value interface{}) {
+	data, err := ioutil.ReadAll(reader)
+	err = json.Unmarshal(data, &value)
+	if err != nil {
+		t.Error(err)
+	}
+}
+
+func CreateHttpTests(t *testing.T, uri string, value interface{}) {
+	resp, err := http.Get(uri)
+	if err != nil {
+		t.Error(err)
+
+		return
+	}
+	defer resp.Body.Close()
+
+	readJSON(t, resp.Body, value)
+}
+
+func CreateFileTests(t *testing.T, fn string, value interface{}) {
+	file, err := os.Open(fn)
+	if err != nil {
+		t.Error(err)
+
+		return
+	}
+	defer file.Close()
+
+	readJSON(t, file, value)
+}
diff --git a/tests/vm/gh_test.go b/tests/vm/gh_test.go
index c7f88a112a..bfccef0729 100644
--- a/tests/vm/gh_test.go
+++ b/tests/vm/gh_test.go
@@ -41,7 +41,7 @@ type VmTest struct {
 
 func RunVmTest(url string, t *testing.T) {
 	tests := make(map[string]VmTest)
-	helper.CreateTests(t, url, &tests)
+	helper.CreateHttpTests(t, url, &tests)
 
 	for name, test := range tests {
 		state := ethstate.New(helper.NewTrie())
@@ -88,12 +88,12 @@ func RunVmTest(url string, t *testing.T) {
 
 // I've created a new function for each tests so it's easier to identify where the problem lies if any of them fail.
 func TestVMArithmetic(t *testing.T) {
+	//helper.Logger.SetLogLevel(5)
 	const url = "https://raw.githubusercontent.com/ethereum/tests/develop/vmtests/vmArithmeticTest.json"
 	RunVmTest(url, t)
 }
 
 func TestVMSystemOperation(t *testing.T) {
-	//helper.Logger.SetLogLevel(5)
 	const url = "https://raw.githubusercontent.com/ethereum/tests/develop/vmtests/vmSystemOperationsTest.json"
 	RunVmTest(url, t)
 }