mirror of https://github.com/mum4k/termdash.git
271 lines
7.7 KiB
Go
271 lines
7.7 KiB
Go
// Copyright 2019 Google Inc.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package draw
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import (
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"image"
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"testing"
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"github.com/mum4k/termdash/cell"
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"github.com/mum4k/termdash/private/area"
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"github.com/mum4k/termdash/private/canvas/braille"
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"github.com/mum4k/termdash/private/canvas/braille/testbraille"
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"github.com/mum4k/termdash/private/faketerm"
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)
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func TestBrailleFill(t *testing.T) {
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tests := []struct {
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desc string
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canvas image.Rectangle
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start image.Point
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border []image.Point
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// If not nil, called to prepare the braille canvas before running the test.
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prepare func(*braille.Canvas) error
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opts []BrailleFillOption
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want func(size image.Point) *faketerm.Terminal
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wantErr bool
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}{
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{
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desc: "fails when start isn't in the canvas",
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canvas: image.Rect(0, 0, 1, 1),
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start: image.Point{-1, 0},
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wantErr: true,
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},
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{
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desc: "fills the full canvas without a border",
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canvas: image.Rect(0, 0, 1, 1),
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start: image.Point{1, 1},
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border: nil,
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want: func(size image.Point) *faketerm.Terminal {
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ft := faketerm.MustNew(size)
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bc := testbraille.MustNew(ft.Area())
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testbraille.MustSetPixel(bc, image.Point{0, 0})
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testbraille.MustSetPixel(bc, image.Point{1, 0})
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testbraille.MustSetPixel(bc, image.Point{0, 1})
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testbraille.MustSetPixel(bc, image.Point{1, 1})
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testbraille.MustSetPixel(bc, image.Point{0, 2})
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testbraille.MustSetPixel(bc, image.Point{1, 2})
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testbraille.MustSetPixel(bc, image.Point{0, 3})
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testbraille.MustSetPixel(bc, image.Point{1, 3})
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testbraille.MustApply(bc, ft)
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return ft
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},
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},
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{
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desc: "fills the full canvas and sets cell options",
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canvas: image.Rect(0, 0, 1, 1),
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start: image.Point{1, 1},
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border: nil,
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opts: []BrailleFillOption{
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BrailleFillCellOpts(cell.FgColor(cell.ColorRed), cell.BgColor(cell.ColorBlue)),
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},
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want: func(size image.Point) *faketerm.Terminal {
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ft := faketerm.MustNew(size)
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bc := testbraille.MustNew(ft.Area())
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opts := []cell.Option{
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cell.FgColor(cell.ColorRed),
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cell.BgColor(cell.ColorBlue),
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}
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testbraille.MustSetPixel(bc, image.Point{0, 0}, opts...)
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testbraille.MustSetPixel(bc, image.Point{1, 0}, opts...)
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testbraille.MustSetPixel(bc, image.Point{0, 1}, opts...)
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testbraille.MustSetPixel(bc, image.Point{1, 1}, opts...)
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testbraille.MustSetPixel(bc, image.Point{0, 2}, opts...)
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testbraille.MustSetPixel(bc, image.Point{1, 2}, opts...)
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testbraille.MustSetPixel(bc, image.Point{0, 3}, opts...)
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testbraille.MustSetPixel(bc, image.Point{1, 3}, opts...)
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testbraille.MustApply(bc, ft)
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return ft
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},
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},
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{
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desc: "clears pixels instead of setting them",
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canvas: image.Rect(0, 0, 1, 1),
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start: image.Point{1, 1},
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border: nil,
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opts: []BrailleFillOption{
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BrailleFillClearPixels(),
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},
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prepare: func(bc *braille.Canvas) error {
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// Set some pixels, see if they get cleared.
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if err := bc.SetPixel(image.Point{1, 0}); err != nil {
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return err
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}
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return bc.SetPixel(image.Point{1, 0})
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},
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want: func(size image.Point) *faketerm.Terminal {
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ft := faketerm.MustNew(size)
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bc := testbraille.MustNew(ft.Area())
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testbraille.MustSetPixel(bc, image.Point{0, 0})
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testbraille.MustClearPixel(bc, image.Point{0, 0})
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testbraille.MustApply(bc, ft)
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return ft
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},
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},
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{
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desc: "clears pixels and sets cell options",
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canvas: image.Rect(0, 0, 1, 1),
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start: image.Point{1, 1},
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border: nil,
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opts: []BrailleFillOption{
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BrailleFillCellOpts(cell.FgColor(cell.ColorRed)),
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BrailleFillClearPixels(),
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},
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prepare: func(bc *braille.Canvas) error {
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// Set some pixels, see if they get cleared.
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if err := bc.SetPixel(image.Point{1, 0}); err != nil {
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return err
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}
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return bc.SetPixel(image.Point{1, 0})
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},
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want: func(size image.Point) *faketerm.Terminal {
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ft := faketerm.MustNew(size)
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bc := testbraille.MustNew(ft.Area())
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opts := []cell.Option{
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cell.FgColor(cell.ColorRed),
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}
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testbraille.MustSetPixel(bc, image.Point{0, 0}, opts...)
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testbraille.MustClearPixel(bc, image.Point{0, 0}, opts...)
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testbraille.MustApply(bc, ft)
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return ft
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},
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},
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{
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desc: "avoids the border",
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canvas: image.Rect(0, 0, 3, 3),
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start: image.Point{1, 1},
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border: []image.Point{
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{1, 3},
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{2, 3},
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{3, 3},
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{4, 3},
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{1, 4},
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{1, 5},
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{1, 6},
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{1, 7},
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{1, 8},
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{4, 4},
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{4, 5},
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{4, 6},
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{4, 7},
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{4, 8},
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{1, 9},
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{2, 9},
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{3, 9},
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{4, 9},
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},
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want: func(size image.Point) *faketerm.Terminal {
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ft := faketerm.MustNew(size)
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bc := testbraille.MustNew(ft.Area())
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mustBrailleLine(bc, image.Point{0, 0}, image.Point{0, 11})
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mustBrailleLine(bc, image.Point{0, 0}, image.Point{5, 0})
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mustBrailleLine(bc, image.Point{0, 1}, image.Point{5, 1})
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mustBrailleLine(bc, image.Point{0, 2}, image.Point{5, 2})
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mustBrailleLine(bc, image.Point{0, 10}, image.Point{5, 10})
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mustBrailleLine(bc, image.Point{0, 11}, image.Point{5, 11})
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mustBrailleLine(bc, image.Point{5, 0}, image.Point{5, 11})
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testbraille.MustApply(bc, ft)
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return ft
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},
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},
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{
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desc: "fills outside of a circle",
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canvas: image.Rect(0, 0, 4, 2),
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start: image.Point{0, 0},
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border: circlePoints(image.Point{4, 4}, 2),
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want: func(size image.Point) *faketerm.Terminal {
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ft := faketerm.MustNew(size)
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bc := testbraille.MustNew(ft.Area())
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mustBrailleLine(bc, image.Point{0, 0}, image.Point{7, 0})
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mustBrailleLine(bc, image.Point{0, 1}, image.Point{7, 1})
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mustBrailleLine(bc, image.Point{0, 2}, image.Point{2, 2})
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mustBrailleLine(bc, image.Point{6, 2}, image.Point{7, 2})
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mustBrailleLine(bc, image.Point{0, 3}, image.Point{1, 3})
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mustBrailleLine(bc, image.Point{7, 3}, image.Point{7, 3})
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mustBrailleLine(bc, image.Point{0, 4}, image.Point{1, 4})
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mustBrailleLine(bc, image.Point{7, 4}, image.Point{7, 4})
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mustBrailleLine(bc, image.Point{0, 5}, image.Point{1, 5})
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mustBrailleLine(bc, image.Point{7, 5}, image.Point{7, 5})
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mustBrailleLine(bc, image.Point{0, 6}, image.Point{2, 6})
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mustBrailleLine(bc, image.Point{6, 6}, image.Point{7, 6})
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mustBrailleLine(bc, image.Point{0, 7}, image.Point{7, 7})
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testbraille.MustApply(bc, ft)
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return ft
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},
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},
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}
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for _, tc := range tests {
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t.Run(tc.desc, func(t *testing.T) {
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bc, err := braille.New(tc.canvas)
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if err != nil {
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t.Fatalf("braille.New => unexpected error: %v", err)
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}
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if tc.prepare != nil {
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if err := tc.prepare(bc); err != nil {
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t.Fatalf("tc.prepare => unexpected error: %v", err)
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}
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}
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err = BrailleFill(bc, tc.start, tc.border, tc.opts...)
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if (err != nil) != tc.wantErr {
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t.Errorf("BrailleFill => unexpected error: %v, wantErr: %v", err, tc.wantErr)
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}
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if err != nil {
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return
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}
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size := area.Size(tc.canvas)
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want := faketerm.MustNew(size)
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if tc.want != nil {
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want = tc.want(size)
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}
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got, err := faketerm.New(size)
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if err != nil {
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t.Fatalf("faketerm.New => unexpected error: %v", err)
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}
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if err := bc.Apply(got); err != nil {
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t.Fatalf("bc.Apply => unexpected error: %v", err)
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}
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if diff := faketerm.Diff(want, got); diff != "" {
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t.Fatalf("BrailleFill => %v", diff)
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}
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})
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}
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}
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