diff --git a/pkg/downloader/getter_test.go b/pkg/downloader/getter_test.go
new file mode 100644
index 000000000..74aa473b6
--- /dev/null
+++ b/pkg/downloader/getter_test.go
@@ -0,0 +1,133 @@
+/*
+    Copyright (C) 2020 Accurics, Inc.
+
+	Licensed under the Apache License, Version 2.0 (the "License");
+    you may not use this file except in compliance with the License.
+    You may obtain a copy of the License at
+
+		http://www.apache.org/licenses/LICENSE-2.0
+
+	Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+*/
+
+package downloader
+
+import (
+	"reflect"
+	"testing"
+)
+
+func TestNewGoGetter(t *testing.T) {
+	t.Run("new GoGetter", func(t *testing.T) {
+		var (
+			want = &GoGetter{}
+			got  = NewGoGetter()
+		)
+		if !reflect.DeepEqual(got, want) {
+			t.Errorf("got: '%v', want: '%v'", got, want)
+		}
+	})
+}
+
+func TestGetURLSubDir(t *testing.T) {
+
+	table := []struct {
+		name       string
+		URL        string
+		dest       string
+		wantURL    string
+		wantSubDir string
+		wantErr    error
+	}{
+		{
+			name:       "github url no subdir",
+			URL:        "github.com/accurics/terrascan",
+			dest:       "some-dest",
+			wantURL:    "git::https://github.com/accurics/terrascan.git",
+			wantSubDir: "",
+			wantErr:    nil,
+		},
+		{
+			name:       "github url with subdir",
+			URL:        "github.com/accurics/terrascan//some-subdir",
+			dest:       "some-dest",
+			wantURL:    "git::https://github.com/accurics/terrascan.git",
+			wantSubDir: "some-subdir",
+			wantErr:    nil,
+		},
+		{
+			name:       "github ssh url",
+			URL:        "git@github.com:accurics/terrascan.git//some-subdir",
+			dest:       "some-dest",
+			wantURL:    "git::ssh://git@github.com/accurics/terrascan.git",
+			wantSubDir: "some-subdir",
+			wantErr:    nil,
+		},
+		{
+			name:       "github basic auth",
+			URL:        "git::ssh://username@example.com/storage.git//some-subdir",
+			dest:       "some-dest",
+			wantURL:    "git::ssh://username@example.com/storage.git",
+			wantSubDir: "some-subdir",
+			wantErr:    nil,
+		},
+		{
+			name:       "github ref version",
+			URL:        "git::https://example.com/vpc.git?ref=v1.2.0",
+			dest:       "some-dest",
+			wantURL:    "git::https://example.com/vpc.git?ref=v1.2.0",
+			wantSubDir: "",
+			wantErr:    nil,
+		},
+		{
+			name:       "http url",
+			URL:        "https://example.com/vpc-module.zip",
+			dest:       "some-dest",
+			wantURL:    "https://example.com/vpc-module.zip",
+			wantSubDir: "",
+			wantErr:    nil,
+		},
+		{
+			name:       "http url with basic auth",
+			URL:        "https://Aladdin:OpenSesame@www.example.com/index.html",
+			dest:       "some-dest",
+			wantURL:    "https://Aladdin:OpenSesame@www.example.com/index.html",
+			wantSubDir: "",
+			wantErr:    nil,
+		},
+		{
+			name:       "s3 url",
+			URL:        "s3::https://s3-eu-west-1.amazonaws.com/examplecorp-terraform-modules/vpc.zip",
+			dest:       "some-dest",
+			wantURL:    "s3::https://s3-eu-west-1.amazonaws.com/examplecorp-terraform-modules/vpc.zip",
+			wantSubDir: "",
+			wantErr:    nil,
+		},
+		{
+			name:       "gcs url",
+			URL:        "gcs::https://www.googleapis.com/storage/v1/modules",
+			dest:       "some-dest",
+			wantURL:    "gcs::https://www.googleapis.com/storage/v1/modules",
+			wantSubDir: "",
+			wantErr:    nil,
+		},
+	}
+
+	for _, tt := range table {
+		g := NewGoGetter()
+		gotURL, gotSubDir, gotErr := g.GetURLSubDir(tt.URL, tt.dest)
+		if !reflect.DeepEqual(gotURL, tt.wantURL) {
+			t.Errorf("url got: '%v', want: '%v'", gotURL, tt.wantURL)
+		}
+		if !reflect.DeepEqual(gotSubDir, tt.wantSubDir) {
+			t.Errorf("url got: '%v', want: '%v'", gotSubDir, tt.wantSubDir)
+		}
+		if !reflect.DeepEqual(gotErr, tt.wantErr) {
+			t.Errorf("url got: '%v', want: '%v'", gotErr, tt.wantErr)
+		}
+	}
+}