(f func())
| 11 | ) |
| 12 | |
| 13 | func captureStdout(f func()) (string, error) { |
| 14 | old := os.Stdout |
| 15 | r, w, err := os.Pipe() |
| 16 | if err != nil { |
| 17 | return "", err |
| 18 | } |
| 19 | os.Stdout = w |
| 20 | |
| 21 | defer func() { |
| 22 | os.Stdout = old |
| 23 | }() |
| 24 | |
| 25 | f() |
| 26 | |
| 27 | w.Close() |
| 28 | |
| 29 | var buf bytes.Buffer |
| 30 | _, err = io.Copy(&buf, r) |
| 31 | if err != nil { |
| 32 | return "", err |
| 33 | } |
| 34 | return buf.String(), nil |
| 35 | } |
| 36 | |
| 37 | func TestCaptureStdout(t *testing.T) { |
| 38 | output, err := captureStdout(func() { |
no test coverage detected