main_test.go RawHistoryFolder

1package main
2
3import (
4	"image"
5	"image/color"
6	"testing"
7
8	"github.com/stretchr/testify/require"
9)
10
11func TestCompare(t *testing.T) {
12	for _, n := range []int{0, 19, 20} {
13		a := image.NewRGBA(image.Rect(0, 0, 300, 300))
14		b := image.NewRGBA(a.Bounds())
15		for x := 0; x < n; x++ {
16			b.Set(100+x, 100, color.White)
17		}
18		got, err := compare(a, b)
19		require.NoError(t, err)
20		require.Equal(t, n, got)
21	}
22	for _, bounds := range []image.Rectangle{image.Rect(0, 0, 200, 300), image.Rect(0, 0, 300, 200)} {
23		_, err := compare(image.NewRGBA(bounds), image.NewRGBA(bounds))
24		require.Error(t, err)
25	}
26	_, err := compare(image.NewRGBA(image.Rect(0, 0, 300, 300)), image.NewRGBA(image.Rect(0, 0, 400, 300)))
27	require.Error(t, err)
28}