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96 lines
2.7 KiB
Go
96 lines
2.7 KiB
Go
// Copyright 2022 The Periph Authors. All rights reserved.
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// Use of this source code is governed under the Apache License, Version 2.0
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// that can be found in the LICENSE file.
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package waveshare2in13v2
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import (
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"image"
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"testing"
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"github.com/google/go-cmp/cmp"
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"periph.io/x/conn/v3/gpio"
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"periph.io/x/conn/v3/gpio/gpiotest"
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"periph.io/x/conn/v3/spi/spitest"
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"periph.io/x/devices/v3/ssd1306/image1bit"
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)
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func TestNew(t *testing.T) {
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for _, tc := range []struct {
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name string
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opts Opts
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wantString string
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wantBounds image.Rectangle
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wantBufferBounds image.Rectangle
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}{
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{
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name: "empty",
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wantString: "epd.Dev{playback, (0), Width: 0, Height: 0}",
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},
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{
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name: "EPD2in13v2",
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opts: EPD2in13v2,
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wantBounds: image.Rect(0, 0, 122, 250),
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wantBufferBounds: image.Rect(0, 0, 128, 250),
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wantString: "epd.Dev{playback, (0), Width: 122, Height: 250}",
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},
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{
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name: "EPD2in13v2, top right",
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opts: func() Opts {
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opts := EPD2in13v2
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opts.Origin = TopRight
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return opts
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}(),
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wantBounds: image.Rect(0, 0, 250, 122),
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wantBufferBounds: image.Rect(0, 0, 250, 128),
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wantString: "epd.Dev{playback, (0), Width: 250, Height: 122}",
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},
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{
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name: "EPD2in13v2, bottom left",
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opts: func() Opts {
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opts := EPD2in13v2
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opts.Origin = BottomLeft
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return opts
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}(),
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wantBounds: image.Rect(0, 0, 250, 122),
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wantBufferBounds: image.Rect(0, 0, 250, 128),
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wantString: "epd.Dev{playback, (0), Width: 250, Height: 122}",
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},
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} {
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t.Run(tc.name, func(t *testing.T) {
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dev, err := New(&spitest.Playback{}, &gpiotest.Pin{}, &gpiotest.Pin{}, &gpiotest.Pin{}, &gpiotest.Pin{
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EdgesChan: make(chan gpio.Level, 1),
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}, &tc.opts)
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if err != nil {
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t.Errorf("New() failed: %v", err)
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}
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if diff := cmp.Diff(dev.String(), tc.wantString); diff != "" {
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t.Errorf("String() difference (-got +want):\n%s", diff)
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}
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if diff := cmp.Diff(dev.Bounds(), tc.wantBounds); diff != "" {
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t.Errorf("Bounds() difference (-got +want):\n%s", diff)
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}
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if diff := cmp.Diff(dev.buffer.Bounds(), tc.wantBufferBounds); diff != "" {
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t.Errorf("buffer.Bounds() difference (-got +want):\n%s", diff)
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}
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if !dev.buffer.Bounds().Empty() {
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for _, pos := range []image.Point{
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image.Pt(0, 0),
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image.Pt(dev.buffer.Bounds().Max.X-1, 0),
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image.Pt(dev.buffer.Bounds().Max.X-1, dev.buffer.Bounds().Max.Y-1),
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image.Pt(0, dev.buffer.Bounds().Max.Y-1),
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image.Pt(dev.buffer.Bounds().Dx()/2, dev.buffer.Bounds().Dy()/2),
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} {
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if diff := cmp.Diff(dev.buffer.BitAt(pos.X, pos.Y), image1bit.On); diff != "" {
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t.Errorf("buffer.BitAt(%v) difference (-got +want):\n%s", pos, diff)
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}
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}
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}
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})
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}
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}
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