mirror of
https://github.com/mum4k/termdash.git
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743 lines
19 KiB
Go
743 lines
19 KiB
Go
// Copyright 2018 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 barchart
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import (
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"image"
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"testing"
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"github.com/kylelemons/godebug/pretty"
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"github.com/mum4k/termdash/cell"
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"github.com/mum4k/termdash/internal/canvas"
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"github.com/mum4k/termdash/internal/canvas/testcanvas"
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"github.com/mum4k/termdash/internal/draw"
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"github.com/mum4k/termdash/internal/draw/testdraw"
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"github.com/mum4k/termdash/internal/faketerm"
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"github.com/mum4k/termdash/internal/widgetapi"
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)
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func TestBarChart(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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update func(*BarChart) error // update gets called before drawing of the widget.
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canvas image.Rectangle
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want func(size image.Point) *faketerm.Terminal
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wantErr bool
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wantUpdateErr bool // whether to expect an error on a call to the update function
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wantDrawErr bool
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}{
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{
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desc: "fails on negative bar width",
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opts: []Option{
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BarWidth(-1),
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},
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update: func(bc *BarChart) error {
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return nil
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},
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canvas: image.Rect(0, 0, 3, 10),
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want: func(size image.Point) *faketerm.Terminal {
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return faketerm.MustNew(size)
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},
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wantErr: true,
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},
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{
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desc: "fails on negative bar gap",
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opts: []Option{
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BarGap(-1),
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},
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update: func(bc *BarChart) error {
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return nil
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},
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canvas: image.Rect(0, 0, 3, 10),
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want: func(size image.Point) *faketerm.Terminal {
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return faketerm.MustNew(size)
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},
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wantErr: true,
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},
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{
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desc: "draws empty for no values",
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opts: []Option{
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Char('o'),
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},
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update: func(bc *BarChart) error {
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return nil
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},
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canvas: image.Rect(0, 0, 3, 10),
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want: func(size image.Point) *faketerm.Terminal {
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return faketerm.MustNew(size)
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},
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},
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{
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desc: "fails for zero max",
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opts: []Option{
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Char('o'),
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},
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update: func(bc *BarChart) error {
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return bc.Values([]int{0, 2, 5, 10}, 0)
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},
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canvas: image.Rect(0, 0, 3, 10),
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want: func(size image.Point) *faketerm.Terminal {
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return faketerm.MustNew(size)
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},
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wantUpdateErr: true,
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},
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{
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desc: "fails for negative max",
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opts: []Option{
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Char('o'),
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},
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update: func(bc *BarChart) error {
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return bc.Values([]int{0, 2, 5, 10}, -1)
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},
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canvas: image.Rect(0, 0, 3, 10),
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want: func(size image.Point) *faketerm.Terminal {
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return faketerm.MustNew(size)
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},
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wantUpdateErr: true,
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},
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{
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desc: "fails when negative value",
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opts: []Option{
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Char('o'),
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},
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update: func(bc *BarChart) error {
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return bc.Values([]int{0, -2, 5, 10}, 10)
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},
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canvas: image.Rect(0, 0, 3, 10),
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want: func(size image.Point) *faketerm.Terminal {
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return faketerm.MustNew(size)
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},
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wantUpdateErr: true,
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},
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{
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desc: "fails for value larger than max",
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opts: []Option{
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Char('o'),
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},
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update: func(bc *BarChart) error {
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return bc.Values([]int{0, 2, 5, 11}, 10)
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},
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canvas: image.Rect(0, 0, 3, 10),
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want: func(size image.Point) *faketerm.Terminal {
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return faketerm.MustNew(size)
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},
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wantUpdateErr: true,
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},
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{
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desc: "draws resize needed character when canvas is smaller than requested",
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opts: []Option{
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Char('o'),
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},
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update: func(bc *BarChart) error {
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return bc.Values([]int{0, 2, 5, 10}, 10)
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},
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canvas: image.Rect(0, 0, 1, 1),
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want: func(size image.Point) *faketerm.Terminal {
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ft := faketerm.MustNew(size)
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c := testcanvas.MustNew(ft.Area())
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testdraw.MustResizeNeeded(c)
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testcanvas.MustApply(c, ft)
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return ft
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},
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},
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{
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desc: "displays bars",
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opts: []Option{
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Char('o'),
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},
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update: func(bc *BarChart) error {
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return bc.Values([]int{0, 2, 5, 10}, 10)
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},
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canvas: image.Rect(0, 0, 7, 10),
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want: func(size image.Point) *faketerm.Terminal {
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ft := faketerm.MustNew(size)
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c := testcanvas.MustNew(ft.Area())
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testdraw.MustRectangle(c, image.Rect(2, 8, 3, 10),
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draw.RectChar('o'),
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draw.RectCellOpts(cell.BgColor(DefaultBarColor)),
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)
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testdraw.MustRectangle(c, image.Rect(4, 5, 5, 10),
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draw.RectChar('o'),
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draw.RectCellOpts(cell.BgColor(DefaultBarColor)),
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)
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testdraw.MustRectangle(c, image.Rect(6, 0, 7, 10),
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draw.RectChar('o'),
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draw.RectCellOpts(cell.BgColor(DefaultBarColor)),
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)
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testcanvas.MustApply(c, ft)
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return ft
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},
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},
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{
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desc: "displays bars with labels",
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opts: []Option{
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Char('o'),
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Labels([]string{
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"1",
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"2",
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"3",
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}),
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},
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update: func(bc *BarChart) error {
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return bc.Values([]int{1, 2, 5, 10}, 10)
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},
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canvas: image.Rect(0, 0, 7, 11),
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want: func(size image.Point) *faketerm.Terminal {
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ft := faketerm.MustNew(size)
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c := testcanvas.MustNew(ft.Area())
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testdraw.MustRectangle(c, image.Rect(0, 9, 1, 10),
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draw.RectChar('o'),
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draw.RectCellOpts(cell.BgColor(DefaultBarColor)),
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)
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testdraw.MustRectangle(c, image.Rect(2, 8, 3, 10),
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draw.RectChar('o'),
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draw.RectCellOpts(cell.BgColor(DefaultBarColor)),
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)
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testdraw.MustRectangle(c, image.Rect(4, 5, 5, 10),
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draw.RectChar('o'),
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draw.RectCellOpts(cell.BgColor(DefaultBarColor)),
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)
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testdraw.MustRectangle(c, image.Rect(6, 0, 7, 10),
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draw.RectChar('o'),
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draw.RectCellOpts(cell.BgColor(DefaultBarColor)),
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)
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// Labels.
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testdraw.MustText(c, "1", image.Point{0, 10}, draw.TextCellOpts(
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cell.FgColor(DefaultLabelColor),
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))
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testdraw.MustText(c, "2", image.Point{2, 10}, draw.TextCellOpts(
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cell.FgColor(DefaultLabelColor),
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))
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testdraw.MustText(c, "3", image.Point{4, 10}, draw.TextCellOpts(
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cell.FgColor(DefaultLabelColor),
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))
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testcanvas.MustApply(c, ft)
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return ft
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},
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},
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{
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desc: "trims too long labels",
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opts: []Option{
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Char('o'),
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Labels([]string{
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"1",
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"22",
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"3",
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}),
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},
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update: func(bc *BarChart) error {
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return bc.Values([]int{1, 2, 5, 10}, 10)
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},
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canvas: image.Rect(0, 0, 7, 11),
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want: func(size image.Point) *faketerm.Terminal {
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ft := faketerm.MustNew(size)
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c := testcanvas.MustNew(ft.Area())
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testdraw.MustRectangle(c, image.Rect(0, 9, 1, 10),
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draw.RectChar('o'),
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draw.RectCellOpts(cell.BgColor(DefaultBarColor)),
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)
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testdraw.MustRectangle(c, image.Rect(2, 8, 3, 10),
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draw.RectChar('o'),
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draw.RectCellOpts(cell.BgColor(DefaultBarColor)),
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)
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testdraw.MustRectangle(c, image.Rect(4, 5, 5, 10),
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draw.RectChar('o'),
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draw.RectCellOpts(cell.BgColor(DefaultBarColor)),
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)
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testdraw.MustRectangle(c, image.Rect(6, 0, 7, 10),
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draw.RectChar('o'),
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draw.RectCellOpts(cell.BgColor(DefaultBarColor)),
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)
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// Labels.
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testdraw.MustText(c, "1", image.Point{0, 10}, draw.TextCellOpts(
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cell.FgColor(DefaultLabelColor),
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))
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testdraw.MustText(c, "…", image.Point{2, 10}, draw.TextCellOpts(
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cell.FgColor(DefaultLabelColor),
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))
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testdraw.MustText(c, "3", image.Point{4, 10}, draw.TextCellOpts(
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cell.FgColor(DefaultLabelColor),
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))
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testcanvas.MustApply(c, ft)
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return ft
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},
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},
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{
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desc: "displays bars with labels and values",
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opts: []Option{
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Char('o'),
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Labels([]string{
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"1",
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"2",
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"3",
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}),
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ShowValues(),
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},
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update: func(bc *BarChart) error {
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return bc.Values([]int{1, 2, 5, 10}, 10)
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},
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canvas: image.Rect(0, 0, 7, 11),
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want: func(size image.Point) *faketerm.Terminal {
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ft := faketerm.MustNew(size)
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c := testcanvas.MustNew(ft.Area())
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testdraw.MustRectangle(c, image.Rect(0, 9, 1, 10),
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draw.RectChar('o'),
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draw.RectCellOpts(cell.BgColor(DefaultBarColor)),
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)
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testdraw.MustRectangle(c, image.Rect(2, 8, 3, 10),
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draw.RectChar('o'),
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draw.RectCellOpts(cell.BgColor(DefaultBarColor)),
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)
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testdraw.MustRectangle(c, image.Rect(4, 5, 5, 10),
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draw.RectChar('o'),
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draw.RectCellOpts(cell.BgColor(DefaultBarColor)),
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)
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testdraw.MustRectangle(c, image.Rect(6, 0, 7, 10),
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draw.RectChar('o'),
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draw.RectCellOpts(cell.BgColor(DefaultBarColor)),
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)
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// Labels.
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testdraw.MustText(c, "1", image.Point{0, 10}, draw.TextCellOpts(
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cell.FgColor(DefaultLabelColor),
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))
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testdraw.MustText(c, "2", image.Point{2, 10}, draw.TextCellOpts(
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cell.FgColor(DefaultLabelColor),
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))
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testdraw.MustText(c, "3", image.Point{4, 10}, draw.TextCellOpts(
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cell.FgColor(DefaultLabelColor),
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))
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// Values.
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testdraw.MustText(c, "1", image.Point{0, 9}, draw.TextCellOpts(
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cell.FgColor(DefaultValueColor),
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cell.BgColor(DefaultBarColor),
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))
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testdraw.MustText(c, "2", image.Point{2, 9}, draw.TextCellOpts(
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cell.FgColor(DefaultValueColor),
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cell.BgColor(DefaultBarColor),
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))
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testdraw.MustText(c, "5", image.Point{4, 9}, draw.TextCellOpts(
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cell.FgColor(DefaultValueColor),
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cell.BgColor(DefaultBarColor),
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))
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testdraw.MustText(c, "…", image.Point{6, 9}, draw.TextCellOpts(
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cell.FgColor(DefaultValueColor),
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cell.BgColor(DefaultBarColor),
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))
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testcanvas.MustApply(c, ft)
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return ft
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},
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},
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{
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desc: "bars take as much width as available",
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opts: []Option{
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Char('o'),
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},
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update: func(bc *BarChart) error {
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return bc.Values([]int{1, 2}, 10)
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},
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canvas: image.Rect(0, 0, 5, 10),
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want: func(size image.Point) *faketerm.Terminal {
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ft := faketerm.MustNew(size)
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c := testcanvas.MustNew(ft.Area())
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testdraw.MustRectangle(c, image.Rect(0, 9, 2, 10),
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draw.RectChar('o'),
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draw.RectCellOpts(cell.BgColor(DefaultBarColor)),
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)
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testdraw.MustRectangle(c, image.Rect(3, 8, 5, 10),
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draw.RectChar('o'),
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draw.RectCellOpts(cell.BgColor(DefaultBarColor)),
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)
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testcanvas.MustApply(c, ft)
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return ft
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},
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},
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{
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desc: "respects set bar width",
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opts: []Option{
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Char('o'),
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BarWidth(1),
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},
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update: func(bc *BarChart) error {
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return bc.Values([]int{1, 2}, 10)
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},
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canvas: image.Rect(0, 0, 5, 10),
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want: func(size image.Point) *faketerm.Terminal {
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ft := faketerm.MustNew(size)
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c := testcanvas.MustNew(ft.Area())
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testdraw.MustRectangle(c, image.Rect(0, 9, 1, 10),
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draw.RectChar('o'),
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draw.RectCellOpts(cell.BgColor(DefaultBarColor)),
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)
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testdraw.MustRectangle(c, image.Rect(2, 8, 3, 10),
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draw.RectChar('o'),
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draw.RectCellOpts(cell.BgColor(DefaultBarColor)),
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)
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testcanvas.MustApply(c, ft)
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return ft
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},
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},
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{
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desc: "options can be set on a call to Values",
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update: func(bc *BarChart) error {
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return bc.Values([]int{1, 2}, 10, Char('o'), BarWidth(1))
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},
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canvas: image.Rect(0, 0, 5, 10),
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want: func(size image.Point) *faketerm.Terminal {
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ft := faketerm.MustNew(size)
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c := testcanvas.MustNew(ft.Area())
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testdraw.MustRectangle(c, image.Rect(0, 9, 1, 10),
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draw.RectChar('o'),
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draw.RectCellOpts(cell.BgColor(DefaultBarColor)),
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)
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testdraw.MustRectangle(c, image.Rect(2, 8, 3, 10),
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draw.RectChar('o'),
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draw.RectCellOpts(cell.BgColor(DefaultBarColor)),
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)
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testcanvas.MustApply(c, ft)
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return ft
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},
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},
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{
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desc: "respects set bar gap",
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opts: []Option{
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Char('o'),
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BarGap(2),
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},
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update: func(bc *BarChart) error {
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return bc.Values([]int{1, 2}, 10)
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},
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canvas: image.Rect(0, 0, 5, 10),
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want: func(size image.Point) *faketerm.Terminal {
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ft := faketerm.MustNew(size)
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c := testcanvas.MustNew(ft.Area())
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testdraw.MustRectangle(c, image.Rect(0, 9, 1, 10),
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draw.RectChar('o'),
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draw.RectCellOpts(cell.BgColor(DefaultBarColor)),
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)
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testdraw.MustRectangle(c, image.Rect(3, 8, 4, 10),
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draw.RectChar('o'),
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draw.RectCellOpts(cell.BgColor(DefaultBarColor)),
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)
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testcanvas.MustApply(c, ft)
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return ft
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},
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},
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{
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desc: "respects both width and gap",
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opts: []Option{
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Char('o'),
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BarGap(2),
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BarWidth(2),
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},
|
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update: func(bc *BarChart) error {
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return bc.Values([]int{5, 3}, 10)
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},
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canvas: image.Rect(0, 0, 6, 10),
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want: func(size image.Point) *faketerm.Terminal {
|
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ft := faketerm.MustNew(size)
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c := testcanvas.MustNew(ft.Area())
|
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|
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testdraw.MustRectangle(c, image.Rect(0, 5, 2, 10),
|
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draw.RectChar('o'),
|
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draw.RectCellOpts(cell.BgColor(DefaultBarColor)),
|
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)
|
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testdraw.MustRectangle(c, image.Rect(4, 7, 6, 10),
|
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draw.RectChar('o'),
|
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draw.RectCellOpts(cell.BgColor(DefaultBarColor)),
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)
|
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testcanvas.MustApply(c, ft)
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return ft
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},
|
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},
|
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{
|
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desc: "respects bar and label colors",
|
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opts: []Option{
|
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Char('o'),
|
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BarColors([]cell.Color{
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cell.ColorBlue,
|
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cell.ColorYellow,
|
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}),
|
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LabelColors([]cell.Color{
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cell.ColorCyan,
|
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cell.ColorMagenta,
|
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}),
|
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Labels([]string{
|
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"1",
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"2",
|
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}),
|
|
},
|
|
update: func(bc *BarChart) error {
|
|
return bc.Values([]int{1, 2, 3}, 10)
|
|
},
|
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canvas: image.Rect(0, 0, 5, 11),
|
|
want: func(size image.Point) *faketerm.Terminal {
|
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ft := faketerm.MustNew(size)
|
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c := testcanvas.MustNew(ft.Area())
|
|
|
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testdraw.MustRectangle(c, image.Rect(0, 9, 1, 10),
|
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draw.RectChar('o'),
|
|
draw.RectCellOpts(cell.BgColor(cell.ColorBlue)),
|
|
)
|
|
testdraw.MustText(c, "1", image.Point{0, 10}, draw.TextCellOpts(
|
|
cell.FgColor(cell.ColorCyan),
|
|
))
|
|
|
|
testdraw.MustRectangle(c, image.Rect(2, 8, 3, 10),
|
|
draw.RectChar('o'),
|
|
draw.RectCellOpts(cell.BgColor(cell.ColorYellow)),
|
|
)
|
|
testdraw.MustText(c, "2", image.Point{2, 10}, draw.TextCellOpts(
|
|
cell.FgColor(cell.ColorMagenta),
|
|
))
|
|
|
|
testdraw.MustRectangle(c, image.Rect(4, 7, 5, 10),
|
|
draw.RectChar('o'),
|
|
draw.RectCellOpts(cell.BgColor(DefaultBarColor)),
|
|
)
|
|
testcanvas.MustApply(c, ft)
|
|
return ft
|
|
},
|
|
},
|
|
{
|
|
desc: "respects value colors",
|
|
opts: []Option{
|
|
Char('o'),
|
|
ValueColors([]cell.Color{
|
|
cell.ColorBlue,
|
|
cell.ColorBlack,
|
|
}),
|
|
ShowValues(),
|
|
},
|
|
update: func(bc *BarChart) error {
|
|
return bc.Values([]int{0, 2, 3}, 10)
|
|
},
|
|
canvas: image.Rect(0, 0, 5, 10),
|
|
want: func(size image.Point) *faketerm.Terminal {
|
|
ft := faketerm.MustNew(size)
|
|
c := testcanvas.MustNew(ft.Area())
|
|
|
|
testdraw.MustText(c, "0", image.Point{0, 9}, draw.TextCellOpts(
|
|
cell.FgColor(cell.ColorBlue),
|
|
))
|
|
|
|
testdraw.MustRectangle(c, image.Rect(2, 8, 3, 10),
|
|
draw.RectChar('o'),
|
|
draw.RectCellOpts(cell.BgColor(DefaultBarColor)),
|
|
)
|
|
testdraw.MustText(c, "2", image.Point{2, 9}, draw.TextCellOpts(
|
|
cell.FgColor(cell.ColorBlack),
|
|
cell.BgColor(DefaultBarColor),
|
|
))
|
|
|
|
testdraw.MustRectangle(c, image.Rect(4, 7, 5, 10),
|
|
draw.RectChar('o'),
|
|
draw.RectCellOpts(cell.BgColor(DefaultBarColor)),
|
|
)
|
|
testdraw.MustText(c, "3", image.Point{4, 9}, draw.TextCellOpts(
|
|
cell.FgColor(DefaultValueColor),
|
|
cell.BgColor(DefaultBarColor),
|
|
))
|
|
testcanvas.MustApply(c, ft)
|
|
return ft
|
|
},
|
|
},
|
|
}
|
|
|
|
for _, tc := range tests {
|
|
t.Run(tc.desc, func(t *testing.T) {
|
|
bc, err := New(tc.opts...)
|
|
if (err != nil) != tc.wantErr {
|
|
t.Errorf("New => unexpected error: %v, wantErr: %v", err, tc.wantErr)
|
|
}
|
|
if err != nil {
|
|
return
|
|
}
|
|
|
|
c, err := canvas.New(tc.canvas)
|
|
if err != nil {
|
|
t.Fatalf("canvas.New => unexpected error: %v", err)
|
|
}
|
|
|
|
err = tc.update(bc)
|
|
if (err != nil) != tc.wantUpdateErr {
|
|
t.Errorf("update => unexpected error: %v, wantUpdateErr: %v", err, tc.wantUpdateErr)
|
|
|
|
}
|
|
if err != nil {
|
|
return
|
|
}
|
|
|
|
err = bc.Draw(c)
|
|
if (err != nil) != tc.wantDrawErr {
|
|
t.Errorf("Draw => unexpected error: %v, wantDrawErr: %v", err, tc.wantDrawErr)
|
|
}
|
|
if err != nil {
|
|
return
|
|
}
|
|
|
|
got, err := faketerm.New(c.Size())
|
|
if err != nil {
|
|
t.Fatalf("faketerm.New => unexpected error: %v", err)
|
|
}
|
|
|
|
if err := c.Apply(got); err != nil {
|
|
t.Fatalf("Apply => unexpected error: %v", err)
|
|
}
|
|
|
|
if diff := faketerm.Diff(tc.want(c.Size()), got); diff != "" {
|
|
t.Errorf("Draw => %v", diff)
|
|
}
|
|
})
|
|
}
|
|
}
|
|
|
|
func TestOptions(t *testing.T) {
|
|
tests := []struct {
|
|
desc string
|
|
create func() (*BarChart, error)
|
|
want widgetapi.Options
|
|
}{
|
|
{
|
|
desc: "minimum size for no bars",
|
|
create: func() (*BarChart, error) {
|
|
return New()
|
|
},
|
|
want: widgetapi.Options{
|
|
MinimumSize: image.Point{1, 1},
|
|
WantKeyboard: widgetapi.KeyScopeNone,
|
|
WantMouse: widgetapi.MouseScopeNone,
|
|
},
|
|
},
|
|
{
|
|
desc: "minimum size for no bars, but have labels",
|
|
create: func() (*BarChart, error) {
|
|
return New(
|
|
Labels([]string{"foo"}),
|
|
)
|
|
},
|
|
want: widgetapi.Options{
|
|
MinimumSize: image.Point{1, 1},
|
|
WantKeyboard: widgetapi.KeyScopeNone,
|
|
WantMouse: widgetapi.MouseScopeNone,
|
|
},
|
|
},
|
|
{
|
|
desc: "minimum size for one bar, default width, gap and no labels",
|
|
create: func() (*BarChart, error) {
|
|
bc, err := New()
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
if err := bc.Values([]int{1}, 3); err != nil {
|
|
return nil, err
|
|
}
|
|
return bc, nil
|
|
},
|
|
want: widgetapi.Options{
|
|
MinimumSize: image.Point{1, 1},
|
|
WantKeyboard: widgetapi.KeyScopeNone,
|
|
WantMouse: widgetapi.MouseScopeNone,
|
|
},
|
|
},
|
|
{
|
|
desc: "minimum size for two bars, default width, gap and no labels",
|
|
create: func() (*BarChart, error) {
|
|
bc, err := New()
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
if err := bc.Values([]int{1, 2}, 3); err != nil {
|
|
return nil, err
|
|
}
|
|
return bc, nil
|
|
},
|
|
want: widgetapi.Options{
|
|
MinimumSize: image.Point{3, 1},
|
|
WantKeyboard: widgetapi.KeyScopeNone,
|
|
WantMouse: widgetapi.MouseScopeNone,
|
|
},
|
|
},
|
|
{
|
|
desc: "minimum size for two bars, custom width, gap and no labels",
|
|
create: func() (*BarChart, error) {
|
|
bc, err := New(
|
|
BarWidth(3),
|
|
BarGap(2),
|
|
)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
if err := bc.Values([]int{1, 2}, 3); err != nil {
|
|
return nil, err
|
|
}
|
|
return bc, nil
|
|
},
|
|
want: widgetapi.Options{
|
|
MinimumSize: image.Point{8, 1},
|
|
WantKeyboard: widgetapi.KeyScopeNone,
|
|
WantMouse: widgetapi.MouseScopeNone,
|
|
},
|
|
},
|
|
{
|
|
desc: "minimum size for two bars, custom width, gap and labels",
|
|
create: func() (*BarChart, error) {
|
|
bc, err := New(
|
|
BarWidth(3),
|
|
BarGap(2),
|
|
)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
if err := bc.Values([]int{1, 2}, 3, Labels([]string{"foo", "bar"})); err != nil {
|
|
return nil, err
|
|
}
|
|
return bc, nil
|
|
},
|
|
want: widgetapi.Options{
|
|
MinimumSize: image.Point{8, 2},
|
|
WantKeyboard: widgetapi.KeyScopeNone,
|
|
WantMouse: widgetapi.MouseScopeNone,
|
|
},
|
|
},
|
|
}
|
|
|
|
for _, tc := range tests {
|
|
t.Run(tc.desc, func(t *testing.T) {
|
|
bc, err := tc.create()
|
|
if err != nil {
|
|
t.Fatalf("create => unexpected error: %v", err)
|
|
}
|
|
|
|
got := bc.Options()
|
|
if diff := pretty.Compare(tc.want, got); diff != "" {
|
|
t.Errorf("Options => unexpected diff (-want, +got):\n%s", diff)
|
|
}
|
|
|
|
})
|
|
}
|
|
}
|