test: add test for title render
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vicanso
parent
126244ba52
commit
c5e2ae67cb
2 changed files with 143 additions and 6 deletions
21
title.go
21
title.go
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@ -30,12 +30,21 @@ import (
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)
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type TitleOption struct {
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Text string
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Subtext string
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Style chart.Style
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// Title text, support \n for new line
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Text string
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// Subtitle text, support \n for new line
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Subtext string
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// Title style
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Style chart.Style
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// Subtitle style
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SubtextStyle chart.Style
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Left string
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Top string
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// Distance between title component and the left side of the container.
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// It can be pixel value: 20, percentage value: 20%,
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// or position value: right, center.
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Left string
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// Distance between title component and the top side of the container.
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// It can be pixel value: 20.
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Top string
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}
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type titleMeasureOption struct {
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width int
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@ -138,7 +147,7 @@ func drawTitle(p *Draw, opt *TitleOption) (chart.Box, error) {
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}
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height := titleY + padding.Top + padding.Bottom
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box := padding.Clone()
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box.Right = box.Left + width
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box.Right = box.Left + titleX + width
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box.Bottom = box.Top + height
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return box, nil
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128
title_test.go
Normal file
128
title_test.go
Normal file
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@ -0,0 +1,128 @@
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// MIT License
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// Copyright (c) 2022 Tree Xie
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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// The above copyright notice and this permission notice shall be included in all
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// copies or substantial portions of the Software.
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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// SOFTWARE.
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package charts
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import (
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"testing"
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"github.com/stretchr/testify/assert"
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"github.com/wcharczuk/go-chart/v2"
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"github.com/wcharczuk/go-chart/v2/drawing"
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)
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func TestSplitTitleText(t *testing.T) {
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assert := assert.New(t)
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assert.Equal([]string{
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"a",
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"b",
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}, splitTitleText("a\nb"))
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assert.Equal([]string{
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"a",
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}, splitTitleText("a\n "))
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}
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func TestDrawTitle(t *testing.T) {
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assert := assert.New(t)
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newOption := func() *TitleOption {
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f, _ := chart.GetDefaultFont()
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return &TitleOption{
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Text: "title\nHello",
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Subtext: "subtitle\nWorld!",
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Style: chart.Style{
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FontSize: 14,
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Font: f,
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FontColor: drawing.ColorBlack,
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},
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SubtextStyle: chart.Style{
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FontSize: 10,
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Font: f,
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FontColor: drawing.ColorBlue,
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},
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}
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}
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newDraw := func() *Draw {
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d, _ := NewDraw(DrawOption{
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Width: 400,
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Height: 300,
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})
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return d
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}
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tests := []struct {
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newDraw func() *Draw
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newOption func() *TitleOption
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result string
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box chart.Box
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}{
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{
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newDraw: newDraw,
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newOption: newOption,
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result: "<svg xmlns=\"http://www.w3.org/2000/svg\" xmlns:xlink=\"http://www.w3.org/1999/xlink\" width=\"400\" height=\"300\">\\n<text x=\"6\" y=\"0\" style=\"stroke-width:0;stroke:none;fill:rgba(0,0,0,1.0);font-size:17.9px;font-family:'Roboto Medium',sans-serif\">title</text><text x=\"0\" y=\"17\" style=\"stroke-width:0;stroke:none;fill:rgba(0,0,0,1.0);font-size:17.9px;font-family:'Roboto Medium',sans-serif\">Hello</text><text x=\"0\" y=\"34\" style=\"stroke-width:0;stroke:none;fill:rgba(0,0,255,1.0);font-size:12.8px;font-family:'Roboto Medium',sans-serif\">subtitle</text><text x=\"3\" y=\"46\" style=\"stroke-width:0;stroke:none;fill:rgba(0,0,255,1.0);font-size:12.8px;font-family:'Roboto Medium',sans-serif\">World!</text></svg>",
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box: chart.Box{
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Right: 43,
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Bottom: 58,
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},
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},
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{
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newDraw: newDraw,
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newOption: func() *TitleOption {
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opt := newOption()
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opt.Left = PositionRight
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opt.Top = "50"
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return opt
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},
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result: "<svg xmlns=\"http://www.w3.org/2000/svg\" xmlns:xlink=\"http://www.w3.org/1999/xlink\" width=\"400\" height=\"300\">\\n<text x=\"363\" y=\"50\" style=\"stroke-width:0;stroke:none;fill:rgba(0,0,0,1.0);font-size:17.9px;font-family:'Roboto Medium',sans-serif\">title</text><text x=\"357\" y=\"67\" style=\"stroke-width:0;stroke:none;fill:rgba(0,0,0,1.0);font-size:17.9px;font-family:'Roboto Medium',sans-serif\">Hello</text><text x=\"357\" y=\"84\" style=\"stroke-width:0;stroke:none;fill:rgba(0,0,255,1.0);font-size:12.8px;font-family:'Roboto Medium',sans-serif\">subtitle</text><text x=\"360\" y=\"96\" style=\"stroke-width:0;stroke:none;fill:rgba(0,0,255,1.0);font-size:12.8px;font-family:'Roboto Medium',sans-serif\">World!</text></svg>",
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box: chart.Box{
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Right: 400,
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Bottom: 108,
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},
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},
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{
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newDraw: newDraw,
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newOption: func() *TitleOption {
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opt := newOption()
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opt.Left = PositionCenter
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opt.Top = "10"
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return opt
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},
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result: "<svg xmlns=\"http://www.w3.org/2000/svg\" xmlns:xlink=\"http://www.w3.org/1999/xlink\" width=\"400\" height=\"300\">\\n<text x=\"185\" y=\"10\" style=\"stroke-width:0;stroke:none;fill:rgba(0,0,0,1.0);font-size:17.9px;font-family:'Roboto Medium',sans-serif\">title</text><text x=\"179\" y=\"27\" style=\"stroke-width:0;stroke:none;fill:rgba(0,0,0,1.0);font-size:17.9px;font-family:'Roboto Medium',sans-serif\">Hello</text><text x=\"179\" y=\"44\" style=\"stroke-width:0;stroke:none;fill:rgba(0,0,255,1.0);font-size:12.8px;font-family:'Roboto Medium',sans-serif\">subtitle</text><text x=\"182\" y=\"56\" style=\"stroke-width:0;stroke:none;fill:rgba(0,0,255,1.0);font-size:12.8px;font-family:'Roboto Medium',sans-serif\">World!</text></svg>",
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box: chart.Box{
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Right: 222,
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Bottom: 68,
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},
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},
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}
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for _, tt := range tests {
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d := tt.newDraw()
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o := tt.newOption()
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b, err := drawTitle(d, o)
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assert.Nil(err)
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assert.Equal(tt.box, b)
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data, err := d.Bytes()
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assert.Nil(err)
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assert.NotEmpty(data)
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assert.Equal(tt.result, string(data))
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}
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}
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