From 20ef8951d6cdd2b74d6889f84d2f8b73737e7cc4 Mon Sep 17 00:00:00 2001
From: Nick White <git@njw.name>
Date: Tue, 22 Nov 2022 10:39:11 +0000
Subject: rescribe: add some gui tests for progress bar

---
 cmd/rescribe/gui_test.go | 76 ++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 76 insertions(+)
 create mode 100644 cmd/rescribe/gui_test.go

diff --git a/cmd/rescribe/gui_test.go b/cmd/rescribe/gui_test.go
new file mode 100644
index 0000000..3c90000
--- /dev/null
+++ b/cmd/rescribe/gui_test.go
@@ -0,0 +1,76 @@
+// Copyright 2022 Nick White.
+// Use of this source code is governed by the GPLv3
+// license that can be found in the LICENSE file.
+
+package main
+
+import (
+	"fmt"
+	"strings"
+	"testing"
+	"fyne.io/fyne/v2/app"
+	"fyne.io/fyne/v2/widget"
+)
+
+func TestFormatProgressBar(t *testing.T) {
+	cases := []struct {
+		val float64
+		str string
+	}{
+		{0.0, ""},
+		{0.01, "Processing"},
+		{0.11, "Downloading"},
+		{0.12, "Processing PDF"},
+		{0.2, "Preprocessing"},
+		{0.5, "OCRing"},
+		{0.55, "OCRing"},
+		{0.89, "OCRing"},
+		{0.9, "Analysing"},
+		{1.0, "Done"},
+		{1.1, "Processing"},
+	}
+
+	_ = app.New() // shouldn't be needed for test but we get a panic without it
+	bar := widget.NewProgressBar()
+
+	for _, c := range cases {
+		t.Run(fmt.Sprintf("%s_%.1f", c.str, c.val), func(t *testing.T) {
+			bar.Value = c.val
+			got := formatProgressBar(bar)()
+			if got != c.str {
+				t.Fatalf("Expected %s, got %s", c.str, got)
+			}
+		})
+	}
+}
+
+func TestUpdateProgress(t *testing.T) {
+	cases := []struct {
+		log string
+		val float64
+	}{
+		{"Downloading", 0.11},
+		{"Preprocessing", 0.2},
+		{"Preprocessing\nOCRing", 0.5},
+		{"Preprocessing\nOCRing...", 0.53},
+		{"OCRing........................................", 0.89},
+		{"OCRing..\nAnalysing", 0.9},
+		{"Done", 1.0},
+		{"Weirdness", 0.0},
+	}
+
+	_ = app.New() // shouldn't be needed for test but we get a panic without it
+	bar := widget.NewProgressBar()
+
+	for _, c := range cases {
+		t.Run(c.log, func(t *testing.T) {
+			l := strings.ReplaceAll("  "+c.log, "\n", "\n  ")
+			bar.Value = 0.0
+			updateProgress(l, bar)
+			got := bar.Value
+			if got != c.val {
+				t.Fatalf("Expected %f, got %f", c.val, got)
+			}
+		})
+	}
+}
-- 
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