Function runExample

go/examples/example_test.go:132–136

Run an example Go program, return the combined output as a string.

(t *testing.T, prog string, arg ...string)

// Run an example Go program, return the combined output as a string.
func runExample(t *testing.T, prog string, arg ...string) (string, error) {
	cmd := exampleCommand(t, prog, arg...)
	out, err := cmd.Output()
	return string(out), err
}

func prefix(prefix string, err error) error {
	if err != nil {