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package mpb_test
import (
"bytes"
"fmt"
"io/ioutil"
"strings"
"sync/atomic"
"testing"
"time"
"unicode/utf8"
"github.com/vbauerster/mpb/v6"
"github.com/vbauerster/mpb/v6/decor"
)
func TestBarCompleted(t *testing.T) {
p := mpb.New(mpb.WithWidth(80), mpb.WithOutput(ioutil.Discard))
total := 80
bar := p.AddBar(int64(total))
var count int
for !bar.Completed() {
time.Sleep(10 * time.Millisecond)
bar.Increment()
count++
}
p.Wait()
if count != total {
t.Errorf("got count: %d, expected %d\n", count, total)
}
}
func TestBarID(t *testing.T) {
p := mpb.New(mpb.WithWidth(80), mpb.WithOutput(ioutil.Discard))
total := 100
wantID := 11
bar := p.AddBar(int64(total), mpb.BarID(wantID))
go func() {
for i := 0; i < total; i++ {
time.Sleep(50 * time.Millisecond)
bar.Increment()
}
}()
gotID := bar.ID()
if gotID != wantID {
t.Errorf("Expected bar id: %d, got %d\n", wantID, gotID)
}
bar.Abort(true)
p.Wait()
}
func TestBarSetRefill(t *testing.T) {
var buf bytes.Buffer
p := mpb.New(mpb.WithOutput(&buf), mpb.WithWidth(100))
total := 100
till := 30
refillRune, _ := utf8.DecodeLastRuneInString(mpb.BarDefaultStyle)
bar := p.AddBar(int64(total), mpb.BarFillerTrim())
bar.SetRefill(int64(till))
bar.IncrBy(till)
for i := 0; i < total-till; i++ {
bar.Increment()
time.Sleep(10 * time.Millisecond)
}
p.Wait()
wantBar := fmt.Sprintf("[%s%s]",
strings.Repeat(string(refillRune), till-1),
strings.Repeat("=", total-till-1),
)
got := string(getLastLine(buf.Bytes()))
if !strings.Contains(got, wantBar) {
t.Errorf("Want bar: %q, got bar: %q\n", wantBar, got)
}
}
func TestBarHas100PercentWithOnCompleteDecorator(t *testing.T) {
var buf bytes.Buffer
p := mpb.New(mpb.WithWidth(80), mpb.WithOutput(&buf))
total := 50
bar := p.AddBar(int64(total),
mpb.AppendDecorators(
decor.OnComplete(
decor.Percentage(), "done",
),
),
)
for i := 0; i < total; i++ {
bar.Increment()
time.Sleep(10 * time.Millisecond)
}
p.Wait()
hundred := "100 %"
if !bytes.Contains(buf.Bytes(), []byte(hundred)) {
t.Errorf("Bar's buffer does not contain: %q\n", hundred)
}
}
func TestBarHas100PercentWithBarRemoveOnComplete(t *testing.T) {
var buf bytes.Buffer
p := mpb.New(mpb.WithWidth(80), mpb.WithOutput(&buf))
total := 50
bar := p.AddBar(int64(total),
mpb.BarRemoveOnComplete(),
mpb.AppendDecorators(decor.Percentage()),
)
for i := 0; i < total; i++ {
bar.Increment()
time.Sleep(10 * time.Millisecond)
}
p.Wait()
hundred := "100 %"
if !bytes.Contains(buf.Bytes(), []byte(hundred)) {
t.Errorf("Bar's buffer does not contain: %q\n", hundred)
}
}
func TestBarStyle(t *testing.T) {
var buf bytes.Buffer
customFormat := "╢▌▌░╟"
total := 80
p := mpb.New(mpb.WithWidth(total), mpb.WithOutput(&buf))
bar := p.Add(int64(total), mpb.NewBarFiller(customFormat), mpb.BarFillerTrim())
for i := 0; i < total; i++ {
bar.Increment()
time.Sleep(10 * time.Millisecond)
}
p.Wait()
runes := []rune(customFormat)
wantBar := fmt.Sprintf("%s%s%s",
string(runes[0]),
strings.Repeat(string(runes[1]), total-2),
string(runes[len(runes)-1]),
)
got := string(getLastLine(buf.Bytes()))
if !strings.Contains(got, wantBar) {
t.Errorf("Want bar: %q:%d, got bar: %q:%d\n", wantBar, utf8.RuneCountInString(wantBar), got, utf8.RuneCountInString(got))
}
}
func TestBarPanicBeforeComplete(t *testing.T) {
var buf bytes.Buffer
p := mpb.New(
mpb.WithWidth(80),
mpb.WithDebugOutput(&buf),
mpb.WithOutput(ioutil.Discard),
)
total := 100
panicMsg := "Upps!!!"
var pCount uint32
bar := p.AddBar(int64(total),
mpb.PrependDecorators(panicDecorator(panicMsg,
func(st decor.Statistics) bool {
if st.Current >= 42 {
atomic.AddUint32(&pCount, 1)
return true
}
return false
},
)),
)
for i := 0; i < total; i++ {
time.Sleep(10 * time.Millisecond)
bar.Increment()
}
p.Wait()
if pCount != 1 {
t.Errorf("Decor called after panic %d times\n", pCount-1)
}
barStr := buf.String()
if !strings.Contains(barStr, panicMsg) {
t.Errorf("%q doesn't contain %q\n", barStr, panicMsg)
}
}
func TestBarPanicAfterComplete(t *testing.T) {
var buf bytes.Buffer
p := mpb.New(
mpb.WithWidth(80),
mpb.WithDebugOutput(&buf),
mpb.WithOutput(ioutil.Discard),
)
total := 100
panicMsg := "Upps!!!"
var pCount uint32
bar := p.AddBar(int64(total),
mpb.PrependDecorators(panicDecorator(panicMsg,
func(st decor.Statistics) bool {
if st.Completed {
atomic.AddUint32(&pCount, 1)
return true
}
return false
},
)),
)
for i := 0; i < total; i++ {
time.Sleep(10 * time.Millisecond)
bar.Increment()
}
p.Wait()
if pCount > 2 {
t.Error("Decor called after panic more than 2 times\n")
}
barStr := buf.String()
if !strings.Contains(barStr, panicMsg) {
t.Errorf("%q doesn't contain %q\n", barStr, panicMsg)
}
}
func panicDecorator(panicMsg string, cond func(decor.Statistics) bool) decor.Decorator {
return decor.Any(func(st decor.Statistics) string {
if cond(st) {
panic(panicMsg)
}
return ""
})
}
|
