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|
package fixture
import (
"io"
"os"
)
func CaptureStdout(callback func()) (string, error) {
oldStdout := os.Stdout
oldStderr := os.Stderr
r, w, err := os.Pipe()
if err != nil {
return "", err
}
os.Stdout = w
defer func() {
os.Stdout = oldStdout
os.Stderr = oldStderr
}()
callback()
w.Close()
data, err := io.ReadAll(r)
if err != nil {
return "", err
}
return string(data), err
}
func CaptureStderr(callback func()) (string, error) {
oldStdout := os.Stdout
oldStderr := os.Stderr
r, w, err := os.Pipe()
if err != nil {
return "", err
}
os.Stderr = w
defer func() {
os.Stdout = oldStdout
os.Stderr = oldStderr
}()
callback()
w.Close()
data, err := io.ReadAll(r)
if err != nil {
return "", err
}
return string(data), err
}
|
