added linter

engine/auth/auth_test.go

@@ -0,0 +1,143 @@
+// Copyright 2019 Drone.IO Inc. All rights reserved.
+// Use of this source code is governed by the Polyform License
+// that can be found in the LICENSE file.
+
+package auth
+
+import (
+	"bytes"
+	"encoding/base64"
+	"os"
+	"testing"
+
+	"github.com/drone-runners/drone-runner-docker/engine"
+
+	"github.com/google/go-cmp/cmp"
+)
+
+func TestParse(t *testing.T) {
+	got, err := ParseString(sample)
+	if err != nil {
+		t.Error(err)
+		return
+	}
+	want := []*engine.Auth{
+		{
+			Address:  "index.docker.io",
+			Username: "octocat",
+			Password: "correct-horse-battery-staple",
+		},
+	}
+	if diff := cmp.Diff(got, want); diff != "" {
+		t.Errorf(diff)
+	}
+}
+
+func TestParseGCR(t *testing.T) {
+	got, err := ParseFile("testdata/config_gcr.json")
+	if err != nil {
+		t.Error(err)
+		return
+	}
+	want := []*engine.Auth{
+		{
+			Address:  "gcr.io",
+			Username: "_json_key",
+			Password: "xxx:bar\n",
+		},
+	}
+	if diff := cmp.Diff(got, want); diff != "" {
+		t.Errorf(diff)
+	}
+}
+
+func TestParseErr(t *testing.T) {
+	_, err := ParseString("")
+	if err == nil {
+		t.Errorf("Expect unmarshal error")
+	}
+}
+
+func TestParseFile(t *testing.T) {
+	got, err := ParseFile("./testdata/config.json")
+	if err != nil {
+		t.Error(err)
+		return
+	}
+	want := []*engine.Auth{
+		{
+			Address:  "index.docker.io",
+			Username: "octocat",
+			Password: "correct-horse-battery-staple",
+		},
+	}
+	if diff := cmp.Diff(got, want); diff != "" {
+		t.Errorf(diff)
+	}
+}
+
+func TestParseFileErr(t *testing.T) {
+	_, err := ParseFile("./testdata/x.json")
+	if _, ok := err.(*os.PathError); !ok {
+		t.Errorf("Expect error when file does not exist")
+	}
+}
+
+func Test_encodeDecode(t *testing.T) {
+	username := "octocat"
+	password := "correct-horse-battery-staple"
+
+	encoded := encode(username, password)
+	decodedUsername, decodedPassword := decode(encoded)
+	if got, want := decodedUsername, username; got != want {
+		t.Errorf("Want decoded username %s, got %s", want, got)
+	}
+	if got, want := decodedPassword, password; got != want {
+		t.Errorf("Want decoded password %s, got %s", want, got)
+	}
+}
+
+func Test_decodeInvalid(t *testing.T) {
+	username, password := decode("b2N0b2NhdDp==")
+	if username != "" || password != "" {
+		t.Errorf("Expect decoding error")
+	}
+}
+
+func TestEncode(t *testing.T) {
+	username := "octocat"
+	password := "correct-horse-battery-staple"
+	result := Encode(username, password)
+	got, err := base64.URLEncoding.DecodeString(result)
+	if err != nil {
+		t.Error(err)
+		return
+	}
+	want := []byte(`{"username":"octocat","password":"correct-horse-battery-staple"}`)
+	if bytes.Equal(got, want) == false {
+		t.Errorf("Could not decode credential header")
+	}
+}
+
+func TestMarshal(t *testing.T) {
+	auths := []*engine.Auth{
+		{
+			Address:  "index.docker.io",
+			Username: "octocat",
+			Password: "correct-horse-battery-staple",
+		},
+	}
+	got, _ := Marshal(auths)
+	want := []byte(`{"auths":{"index.docker.io":{"auth":"b2N0b2NhdDpjb3JyZWN0LWhvcnNlLWJhdHRlcnktc3RhcGxl"}}}`)
+	if bytes.Equal(got, want) == false {
+		t.Errorf("Could not decode credential header")
+	}
+}
+
+var sample = `{
+	"auths": {
+		"https://index.docker.io/v1/": {
+			"auth": "b2N0b2NhdDpjb3JyZWN0LWhvcnNlLWJhdHRlcnktc3RhcGxl"
+		}
+	}
+}`