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package testutil
import (
"bytes"
"io/ioutil"
"reflect"
"git.archive.org/martin/cgraph/skate/atomic"
)
// BufferFileEquals returns true, if the contents of a given buffer matches the
// contents of a file given by filename.
func BufferFileEquals(buf *bytes.Buffer, filename string) (bool, error) {
b, err := ioutil.ReadFile(filename)
if err != nil {
return false, err
}
bb := buf.Bytes()
if len(bb) == 0 && len(b) == 0 {
return true, nil
}
return reflect.DeepEqual(b, bb), nil
}
// BufferToTemp writes the content of a buffer to a temporary file and returns
// its path.
func BufferToTemp(buf *bytes.Buffer) (string, error) {
f, err := ioutil.TempFile("", "skate-test-*")
if err != nil {
return "", err
}
if err = atomic.WriteFile(f.Name(), buf.Bytes(), 0755); err != nil {
return "", err
}
return f.Name(), nil
}
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