From e56687fa8f946cb5328c219eee96ad3e265638cc Mon Sep 17 00:00:00 2001
From: Andy Walker <walkeraj@gmail.com>
Date: Tue, 28 Sep 2021 23:02:24 -0400
Subject: [PATCH] Force redraw on Describe()

Fixes #109
---
 progressbar.go      |  2 +-
 progressbar_test.go | 18 ++++++++++--------
 2 files changed, 11 insertions(+), 9 deletions(-)

diff --git a/progressbar.go b/progressbar.go
index 4de3c50..15ecf35 100644
--- a/progressbar.go
+++ b/progressbar.go
@@ -515,6 +515,7 @@ func (p *ProgressBar) Clear() error {
 // can be changed on the fly (as for a slow running process).
 func (p *ProgressBar) Describe(description string) {
 	p.config.description = description
+	p.RenderBlank()
 }
 
 // New64 returns a new ProgressBar
@@ -679,7 +680,6 @@ func renderProgressBar(c config, s *state) (int, error) {
 					bytesString += fmt.Sprintf("%s/%s%s", currentHumanize, c.maxHumanized, c.maxHumanizedSuffix)
 				} else {
 					bytesString += fmt.Sprintf("%s%s/%s%s", currentHumanize, currentSuffix, c.maxHumanized, c.maxHumanizedSuffix)
-
 				}
 			} else {
 				bytesString += fmt.Sprintf("%.0f/%d", s.currentBytes, c.max)
diff --git a/progressbar_test.go b/progressbar_test.go
index e0de534..77e21c3 100644
--- a/progressbar_test.go
+++ b/progressbar_test.go
@@ -9,6 +9,7 @@ import (
 	"io/ioutil"
 	"net/http"
 	"os"
+	"strconv"
 	"strings"
 	"sync"
 	"testing"
@@ -87,6 +88,7 @@ func ExampleOptionClearOnFinish() {
 	// Output:
 	// Finished
 }
+
 func ExampleProgressBar_Finish() {
 	bar := NewOptions(100, OptionSetWidth(10), OptionSetRenderBlankState(false))
 	bar.Finish()
@@ -502,7 +504,6 @@ func TestConcurrency(t *testing.T) {
 }
 
 func TestIterationNames(t *testing.T) {
-
 	b := Default(20)
 	tc := b.config
 
@@ -526,12 +527,13 @@ func md5sum(r io.Reader) (string, error) {
 	return hex.EncodeToString(hash.Sum(nil)), err
 }
 
-func ExampleProgressBar_Describe() {
-	bar := NewOptions(100, OptionSetWidth(10), OptionSetRenderBlankState(false))
-	bar.Reset()
-	time.Sleep(1 * time.Second)
-	bar.Describe("performing axial adjustements")
+func TestProgressBar_Describe(t *testing.T) {
+	buf := strings.Builder{}
+	bar := NewOptions(100, OptionSetWidth(10), OptionSetRenderBlankState(false), OptionSetWriter(&buf))
+	bar.Describe("performing axial adjustments")
 	bar.Add(10)
-	// Output:
-	// performing axial adjustements  10% |█         |  [1s:9s]
+	rawBuf := strconv.QuoteToASCII(buf.String())
+	if rawBuf != `"\r\r\rperforming axial adjustments   0% |          |  [0s:0s]\r                                                       \r\rperforming axial adjustments  10% |\u2588         |  [0s:0s]"` {
+		t.Errorf("wrong string: %s", rawBuf)
+	}
 }