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package machineid
import (
"bytes"
"crypto/hmac"
"crypto/sha256"
"encoding/hex"
"strings"
"testing"
)
func Test_protect(t *testing.T) {
appID := "ms.azur.appX"
machineID := "1a1238d601ad430cbea7efb0d1f3d92d"
hash := protect(appID, machineID)
if hash == "" {
t.Error("hash is empty")
}
rawHash, err := hex.DecodeString(hash)
if err != nil {
t.Error(err)
}
eq := checkMAC([]byte(appID), rawHash, []byte(machineID))
if eq == false {
t.Error("hashes do not match")
}
// modify rawHash --> should not match
rawHash[0] = 0
eq = checkMAC([]byte(appID), rawHash, []byte(machineID))
if eq == true {
t.Error("hashes do match, but shouldn't")
}
}
func checkMAC(message, messageMAC, key []byte) bool {
mac := hmac.New(sha256.New, key)
mac.Write(message)
expectedMAC := mac.Sum(nil)
return hmac.Equal(messageMAC, expectedMAC)
}
func Test_run(t *testing.T) {
stdout := &bytes.Buffer{}
stderr := &bytes.Buffer{}
wantStdout := "hello"
wantStderr := ""
if err := run(stdout, stderr, "echo", "hello"); err != nil {
t.Error(err)
}
gotStdout := strings.TrimRight(stdout.String(), "\r\n")
if gotStdout != wantStdout {
t.Errorf("run() = %v, want %v", gotStdout, wantStdout)
}
if gotStderr := stderr.String(); gotStderr != wantStderr {
t.Errorf("run() = %v, want %v", gotStderr, wantStderr)
}
}
func Test_run_unknown(t *testing.T) {
stdout := &bytes.Buffer{}
stderr := &bytes.Buffer{}
err := run(stdout, stderr, "echolo", "hello")
if err == nil {
t.Error("expected error, got none")
}
if strings.Contains(err.Error(), "executable file not found") == false {
t.Error("unexpected error, expected exec not found")
}
}
func Test_trim(t *testing.T) {
type args struct {
s string
}
tests := []struct {
name string
args args
want string
}{
{
name: "nil",
args: args{s: ""},
want: "",
},
{
name: "space",
args: args{s: " space "},
want: "space",
},
{
name: "nl",
args: args{s: "data\n"},
want: "data",
},
{
name: "combined",
args: args{s: " some data \n"},
want: "some data",
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
if got := trim(tt.args.s); got != tt.want {
t.Errorf("trim() = %v, want %v", got, tt.want)
}
})
}
}
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