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package integrationtests
import (
"crypto/sha256"
"encoding/base64"
"fmt"
"io/ioutil"
"os"
"os/exec"
"strings"
"testing"
)
func runCommand(t *testing.T, cmd string, args []string, stdoutFile string) error {
if _, err := os.Stat(cmd); err != nil {
return fmt.Errorf("No such binary %s, please compile first (%v)", cmd, err)
}
t.Log("Executing command:", cmd, strings.Join(args, " "))
bytes, err := exec.Command(cmd, args...).Output()
if err != nil {
return err
}
t.Log("Writing stdout to file", stdoutFile)
fd, err := os.Create(stdoutFile)
if err != nil {
return err
}
fd.Write(bytes)
fd.Close()
return nil
}
func compareFiles(t *testing.T, fileA, fileB string) error {
t.Log("Comparing files", fileA, fileB)
shaFileA := shaOfFile(t, fileA)
shaFileB := shaOfFile(t, fileB)
if shaFileA != shaFileB {
t.Errorf("Expected SHA %s but got %s", shaFileA, shaFileB)
if bytes, err := exec.Command("diff", "-u", fileA, fileB).Output(); err != nil {
return fmt.Errorf(string(bytes))
}
}
return nil
}
func shaOfFile(t *testing.T, file string) string {
bytes, err := ioutil.ReadFile(file)
if err != nil {
t.Error(err)
}
hasher := sha256.New()
hasher.Write(bytes)
sha := base64.URLEncoding.EncodeToString(hasher.Sum(nil))
t.Log("SHA", file, sha)
return sha
}
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