mirror of
https://github.com/mum4k/termdash.git
synced 2025-04-25 13:48:50 +08:00
322 lines
8.3 KiB
Go
322 lines
8.3 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 dotseg
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import (
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"image"
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"sort"
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"testing"
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"github.com/kylelemons/godebug/pretty"
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"github.com/mum4k/termdash/internal/area"
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"github.com/mum4k/termdash/internal/canvas"
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"github.com/mum4k/termdash/internal/canvas/braille/testbraille"
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"github.com/mum4k/termdash/internal/canvas/testcanvas"
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"github.com/mum4k/termdash/internal/faketerm"
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"github.com/mum4k/termdash/internal/segdisp"
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"github.com/mum4k/termdash/internal/segdisp/segment"
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"github.com/mum4k/termdash/internal/segdisp/segment/testsegment"
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)
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func TestDraw(t *testing.T) {
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tests := []struct {
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desc string
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opts []Option
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drawOpts []Option
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cellCanvas image.Rectangle
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// If not nil, it is called before Draw is called and can set, clear or
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// toggle segments or characters.
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update func(*Display) error
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want func(size image.Point) *faketerm.Terminal
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wantErr bool
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wantUpdateErr bool
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}{
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{
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desc: "fails for area not wide enough",
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cellCanvas: image.Rect(0, 0, segdisp.MinCols-1, segdisp.MinRows),
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wantErr: true,
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},
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{
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desc: "fails for area not tall enough",
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cellCanvas: image.Rect(0, 0, segdisp.MinCols, segdisp.MinRows-1),
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wantErr: true,
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},
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{
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desc: "fails to set invalid segment (too small)",
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cellCanvas: image.Rect(0, 0, segdisp.MinCols, segdisp.MinRows),
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update: func(d *Display) error {
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return d.SetSegment(Segment(-1))
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},
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wantUpdateErr: true,
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},
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{
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desc: "fails to set invalid segment (too large)",
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cellCanvas: image.Rect(0, 0, segdisp.MinCols, segdisp.MinRows),
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update: func(d *Display) error {
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return d.SetSegment(Segment(segmentMax))
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},
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wantUpdateErr: true,
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},
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{
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desc: "fails to clear invalid segment (too small)",
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cellCanvas: image.Rect(0, 0, segdisp.MinCols, segdisp.MinRows),
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update: func(d *Display) error {
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return d.ClearSegment(Segment(-1))
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},
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wantUpdateErr: true,
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},
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{
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desc: "fails to clear invalid segment (too large)",
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cellCanvas: image.Rect(0, 0, segdisp.MinCols, segdisp.MinRows),
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update: func(d *Display) error {
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return d.ClearSegment(Segment(segmentMax))
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},
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wantUpdateErr: true,
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},
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{
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desc: "fails to toggle invalid segment (too small)",
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cellCanvas: image.Rect(0, 0, segdisp.MinCols, segdisp.MinRows),
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update: func(d *Display) error {
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return d.ToggleSegment(Segment(-1))
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},
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wantUpdateErr: true,
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},
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{
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desc: "fails to toggle invalid segment (too large)",
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cellCanvas: image.Rect(0, 0, segdisp.MinCols, segdisp.MinRows),
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update: func(d *Display) error {
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return d.ToggleSegment(Segment(segmentMax))
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},
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wantUpdateErr: true,
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},
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{
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desc: "empty when no segments set",
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cellCanvas: image.Rect(0, 0, segdisp.MinCols, segdisp.MinRows),
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},
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{
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desc: "smallest valid display 6x5, all segments",
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cellCanvas: image.Rect(0, 0, segdisp.MinCols, segdisp.MinRows),
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update: func(d *Display) error {
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for _, seg := range AllSegments() {
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if err := d.SetSegment(seg); err != nil {
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return err
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}
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}
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return nil
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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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testsegment.MustHV(bc, image.Rect(5, 6, 7, 8), segment.Horizontal) // D1
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testsegment.MustHV(bc, image.Rect(5, 12, 7, 14), segment.Horizontal) // D2
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testsegment.MustHV(bc, image.Rect(5, 18, 7, 20), segment.Horizontal) // D3
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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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d := New(tc.opts...)
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if tc.update != nil {
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err := tc.update(d)
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if (err != nil) != tc.wantUpdateErr {
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t.Errorf("tc.update => unexpected error: %v, wantUpdateErr: %v", err, tc.wantUpdateErr)
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}
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if err != nil {
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return
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}
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}
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cvs, err := canvas.New(tc.cellCanvas)
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if err != nil {
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t.Fatalf("canvas.New => unexpected error: %v", err)
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}
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{
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err := d.Draw(cvs, tc.drawOpts...)
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if (err != nil) != tc.wantErr {
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t.Errorf("Draw => 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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}
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size := area.Size(tc.cellCanvas)
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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 := cvs.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("Draw => %v", diff)
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}
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})
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}
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}
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// mustDrawSegments returns a fake terminal of the specified size with the
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// segments drawn on it or panics.
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func mustDrawSegments(size image.Point, seg ...Segment) *faketerm.Terminal {
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ft := faketerm.MustNew(size)
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cvs := testcanvas.MustNew(ft.Area())
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d := New()
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for _, s := range seg {
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if err := d.SetSegment(s); err != nil {
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panic(err)
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}
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}
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if err := d.Draw(cvs); err != nil {
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panic(err)
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}
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testcanvas.MustApply(cvs, ft)
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return ft
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}
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func TestSetCharacter(t *testing.T) {
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tests := []struct {
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desc string
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char rune
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// If not nil, it is called before Draw is called and can set, clear or
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// toggle segments or characters.
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update func(*Display) error
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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 on unsupported character",
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char: 'A',
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wantErr: true,
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},
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{
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desc: "doesn't clear the display",
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update: func(d *Display) error {
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return d.SetSegment(D3)
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},
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char: ':',
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want: func(size image.Point) *faketerm.Terminal {
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return mustDrawSegments(size, D1, D2, D3)
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},
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},
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{
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desc: "displays '.'",
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char: '.',
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want: func(size image.Point) *faketerm.Terminal {
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return mustDrawSegments(size, D3)
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},
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},
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{
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desc: "displays ':'",
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char: ':',
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want: func(size image.Point) *faketerm.Terminal {
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return mustDrawSegments(size, D1, D2)
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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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d := New()
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if tc.update != nil {
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err := tc.update(d)
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if err != nil {
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t.Fatalf("tc.update => unexpected error: %v", err)
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}
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}
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{
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err := d.SetCharacter(tc.char)
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if (err != nil) != tc.wantErr {
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t.Errorf("SetCharacter => 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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}
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ar := image.Rect(0, 0, segdisp.MinCols, segdisp.MinRows)
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cvs, err := canvas.New(ar)
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if err != nil {
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t.Fatalf("canvas.New => unexpected error: %v", err)
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}
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if err := d.Draw(cvs); err != nil {
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t.Fatalf("Draw => unexpected error: %v", err)
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}
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size := area.Size(ar)
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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 := cvs.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("SetCharacter => %v", diff)
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}
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})
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}
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}
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func TestAllSegments(t *testing.T) {
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want := []Segment{D1, D2, D3}
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got := AllSegments()
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sort.Slice(got, func(i, j int) bool {
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return int(got[i]) < int(got[j])
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})
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if diff := pretty.Compare(want, got); diff != "" {
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t.Errorf("AllSegments => unexpected diff (-want, +got):\n%s", diff)
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}
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}
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func TestSupportedsChars(t *testing.T) {
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want := []rune{'.', ':'}
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gotStr := SupportedChars()
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var got []rune
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for _, r := range gotStr {
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got = append(got, r)
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}
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sort.Slice(got, func(i, j int) bool {
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return int(got[i]) < int(got[j])
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})
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sort.Slice(want, func(i, j int) bool {
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return int(want[i]) < int(want[j])
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})
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if diff := pretty.Compare(want, got); diff != "" {
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t.Errorf("SupportedChars => unexpected diff (-want, +got):\n%s", diff)
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}
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}
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