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package progress

import (

"bytes"

"io"

"io/ioutil"

"testing"

)

func TestOutputOnPrematureClose(t *testing.T) {

content := []byte("TESTING")

reader := ioutil.NopCloser(bytes.NewReader(content))

progressChan := make(chan Progress, 10)

pr := NewProgressReader(reader, ChanOutput(progressChan), int64(len(content)), "Test", "Read")

part := make([]byte, 4, 4)

_, err := io.ReadFull(pr, part)

if err != nil {

pr.Close()

t.Fatal(err)

}

drainLoop:

for {

select {

case <-progressChan:

default:

break drainLoop

}

}

pr.Close()

select {

case <-progressChan:

default:

t.Fatalf("Expected some output when closing prematurely")

}

}

func TestCompleteSilently(t *testing.T) {

content := []byte("TESTING")

reader := ioutil.NopCloser(bytes.NewReader(content))

progressChan := make(chan Progress, 10)

pr := NewProgressReader(reader, ChanOutput(progressChan), int64(len(content)), "Test", "Read")

out, err := ioutil.ReadAll(pr)

if err != nil {

pr.Close()

t.Fatal(err)

}

if string(out) != "TESTING" {

pr.Close()

t.Fatalf("Unexpected output %q from reader", string(out))

}

drainLoop:

for {

select {

case <-progressChan:

default:

break drainLoop

}

}

pr.Close()

select {

case <-progressChan:

t.Fatalf("Should have closed silently when read is complete")

default:

}

}