I have this test function:
package main
import (
"bufio"
"fmt"
"os"
"testing"
)
func TestInput(t *testing.T) {
scanner := bufio.NewScanner(os.Stdin)
msg := "Your name please? Press the Enter key when done"
fmt.Fprintln(os.Stdout, msg)
scanner.Scan()
if err := scanner.Err(); err != nil {
t.Fatal(err)
}
name := scanner.Text()
if len(name) == 0 {
t.Log("empty input")
}
t.Log(name)
}
When i run it via go test -v, this is what i get (TLDR; terminates without
waiting for the interactive input):
% go test -v
=== RUN TestInput
Your name please? Press the Enter key when done
stdin_test.go:21: empty input
stdin_test.go:23:
--- PASS: TestInput (0.00s)
PASS
ok test 0.370s
However, when i compile the test and then run the binary, it waits for me
to enter the input:
% go test -c
% ./test.test
Your name please? Press the Enter key when done
The latter behavior is more inline with what i was expecting in the first
case as well.
I thought may be it has something to do with the fact that go test is
executing the binary (i think) after compiling, and started looking
at:
https://github.com/golang/go/blob/c7f2f51fed15b410dea5f608420858b401887d0a/src/cmd/go/internal/test/test.go
, but can't see anything obvious.
Wondering if anyone of you folks have an answer?
Thanks,
Amit.
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