zeni/go-charts
1
0
Fork 0
Code Issues Pull requests Projects Releases 47 Packages Wiki Activity Actions
go-charts/draw_test.go
vicanso e558634dda feat: support make point and make line
2022-02-10 23:24:30 +08:00

393 lines
10 KiB
Go
Raw Blame History

// MIT License
// Copyright (c) 2022 Tree Xie
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
// SOFTWARE.
package charts
import (
"math"
"testing"
"github.com/stretchr/testify/assert"
"github.com/wcharczuk/go-chart/v2"
"github.com/wcharczuk/go-chart/v2/drawing"
)
func TestParentOption(t *testing.T) {
assert := assert.New(t)
p, err := NewDraw(DrawOption{
Width: 400,
Height: 300,
})
assert.Nil(err)
d, err := NewDraw(DrawOption{
Parent: p,
})
assert.Nil(err)
assert.Equal(p, d.parent)
}
func TestWidthHeightOption(t *testing.T) {
assert := assert.New(t)
// no parent
width := 300
height := 200
d, err := NewDraw(DrawOption{
Width: width,
Height: height,
})
assert.Nil(err)
assert.Equal(chart.Box{
Top: 0,
Left: 0,
Right: width,
Bottom: height,
}, d.Box)
width = 500
height = 600
// with parent
p, err := NewDraw(
DrawOption{
Width: width,
Height: height,
},
PaddingOption(chart.NewBox(5, 5, 5, 5)),
)
assert.Nil(err)
d, err = NewDraw(
DrawOption{
Parent: p,
},
PaddingOption(chart.NewBox(1, 2, 3, 4)),
)
assert.Nil(err)
assert.Equal(chart.Box{
Top: 6,
Left: 7,
Right: 492,
Bottom: 591,
}, d.Box)
}
func TestPaddingOption(t *testing.T) {
assert := assert.New(t)
d, err := NewDraw(DrawOption{
Width: 400,
Height: 300,
})
assert.Nil(err)
// 默认的box
assert.Equal(chart.Box{
Right: 400,
Bottom: 300,
}, d.Box)
// 设置padding之后的box
d, err = NewDraw(DrawOption{
Width: 400,
Height: 300,
}, PaddingOption(chart.Box{
Left: 1,
Top: 2,
Right: 3,
Bottom: 4,
}))
assert.Nil(err)
assert.Equal(chart.Box{
Top: 2,
Left: 1,
Right: 397,
Bottom: 296,
}, d.Box)
p := d
// 设置父元素之后的box
d, err = NewDraw(
DrawOption{
Parent: p,
},
PaddingOption(chart.Box{
Left: 1,
Top: 2,
Right: 3,
Bottom: 4,
}),
)
assert.Nil(err)
assert.Equal(chart.Box{
Top: 4,
Left: 2,
Right: 394,
Bottom: 292,
}, d.Box)
}
func TestParentTop(t *testing.T) {
assert := assert.New(t)
d1, err := NewDraw(DrawOption{
Width: 400,
Height: 300,
})
assert.Nil(err)
d2, err := NewDraw(DrawOption{
Parent: d1,
})
assert.Nil(err)
d3, err := NewDraw(DrawOption{
Parent: d2,
})
assert.Nil(err)
assert.Equal(d2, d3.Parent())
assert.Equal(d1, d2.Parent())
assert.Equal(d1, d3.Top())
assert.Equal(d1, d2.Top())
}
func TestDraw(t *testing.T) {
assert := assert.New(t)
tests := []struct {
fn func(d *Draw)
result string
}{
// moveTo, lineTo
{
fn: func(d *Draw) {
d.moveTo(1, 1)
d.lineTo(2, 2)
d.Render.Stroke()
},
result: "<svg xmlns=\"http://www.w3.org/2000/svg\" xmlns:xlink=\"http://www.w3.org/1999/xlink\" width=\"400\" height=\"300\">\\n<path d=\"M 6 11\nL 7 12\" style=\"stroke-width:0;stroke:none;fill:none\"/></svg>",
},
// circle
{
fn: func(d *Draw) {
d.circle(5, 2, 3)
},
result: "<svg xmlns=\"http://www.w3.org/2000/svg\" xmlns:xlink=\"http://www.w3.org/1999/xlink\" width=\"400\" height=\"300\">\\n<circle cx=\"7\" cy=\"13\" r=\"5\" style=\"stroke-width:0;stroke:none;fill:none\"/></svg>",
},
// text
{
fn: func(d *Draw) {
d.text("hello world!", 3, 6)
},
result: "<svg xmlns=\"http://www.w3.org/2000/svg\" xmlns:xlink=\"http://www.w3.org/1999/xlink\" width=\"400\" height=\"300\">\\n<text x=\"8\" y=\"16\" style=\"stroke-width:0;stroke:none;fill:none\">hello world!</text></svg>",
},
// line stroke
{
fn: func(d *Draw) {
d.lineStroke([]Point{
{
X: 1,
Y: 2,
},
{
X: 3,
Y: 4,
},
}, LineStyle{
StrokeColor: drawing.ColorBlack,
StrokeWidth: 1,
})
},
result: "<svg xmlns=\"http://www.w3.org/2000/svg\" xmlns:xlink=\"http://www.w3.org/1999/xlink\" width=\"400\" height=\"300\">\\n<path d=\"M 6 12\nL 8 14\" style=\"stroke-width:1;stroke:rgba(0,0,0,1.0);fill:none\"/></svg>",
},
// set background
{
fn: func(d *Draw) {
d.setBackground(400, 300, chart.ColorWhite)
},
result: "<svg xmlns=\"http://www.w3.org/2000/svg\" xmlns:xlink=\"http://www.w3.org/1999/xlink\" width=\"400\" height=\"300\">\\n<path d=\"M 0 0\nL 400 0\nL 400 300\nL 0 300\nL 0 0\" style=\"stroke-width:0;stroke:none;fill:rgba(255,255,255,1.0)\"/></svg>",
},
// arcTo
{
fn: func(d *Draw) {
chart.Style{
StrokeWidth: 1,
StrokeColor: drawing.ColorBlack,
FillColor: drawing.ColorBlue,
}.WriteToRenderer(d.Render)
d.arcTo(100, 100, 100, 100, 0, math.Pi/2)
d.Render.Close()
d.Render.FillStroke()
},
result: "<svg xmlns=\"http://www.w3.org/2000/svg\" xmlns:xlink=\"http://www.w3.org/1999/xlink\" width=\"400\" height=\"300\">\\n<path d=\"M 205 110\nA 100 100 90.00 0 1 105 210\nZ\" style=\"stroke-width:1;stroke:rgba(0,0,0,1.0);fill:rgba(0,0,255,1.0)\"/></svg>",
},
// pin
{
fn: func(d *Draw) {
chart.Style{
StrokeWidth: 1,
StrokeColor: drawing.Color{
R: 84,
G: 112,
B: 198,
A: 255,
},
FillColor: drawing.Color{
R: 84,
G: 112,
B: 198,
A: 255,
},
}.WriteToRenderer(d.Render)
d.pin(30, 30, 30)
},
result: "<svg xmlns=\"http://www.w3.org/2000/svg\" xmlns:xlink=\"http://www.w3.org/1999/xlink\" width=\"400\" height=\"300\">\\n<path d=\"M 32 47\nA 15 15 330.00 1 1 38 47\nL 35 33\nZ\" style=\"stroke-width:1;stroke:rgba(84,112,198,1.0);fill:rgba(84,112,198,1.0)\"/><path d=\"M 20 33\nQ35,70 50,33\nZ\" style=\"stroke-width:1;stroke:rgba(84,112,198,1.0);fill:rgba(84,112,198,1.0)\"/></svg>",
},
// arrow left
{
fn: func(d *Draw) {
chart.Style{
StrokeWidth: 1,
StrokeColor: drawing.Color{
R: 84,
G: 112,
B: 198,
A: 255,
},
FillColor: drawing.Color{
R: 84,
G: 112,
B: 198,
A: 255,
},
}.WriteToRenderer(d.Render)
d.arrowLeft(30, 30, 16, 10)
},
result: "<svg xmlns=\"http://www.w3.org/2000/svg\" xmlns:xlink=\"http://www.w3.org/1999/xlink\" width=\"400\" height=\"300\">\\n<path d=\"M 51 35\nL 35 40\nL 51 45\nL 46 40\nL 51 35\" style=\"stroke-width:1;stroke:rgba(84,112,198,1.0);fill:rgba(84,112,198,1.0)\"/></svg>",
},
// arrow right
{
fn: func(d *Draw) {
chart.Style{
StrokeWidth: 1,
StrokeColor: drawing.Color{
R: 84,
G: 112,
B: 198,
A: 255,
},
FillColor: drawing.Color{
R: 84,
G: 112,
B: 198,
A: 255,
},
}.WriteToRenderer(d.Render)
d.arrowRight(30, 30, 16, 10)
},
result: "<svg xmlns=\"http://www.w3.org/2000/svg\" xmlns:xlink=\"http://www.w3.org/1999/xlink\" width=\"400\" height=\"300\">\\n<path d=\"M 19 35\nL 35 40\nL 19 45\nL 24 40\nL 19 35\" style=\"stroke-width:1;stroke:rgba(84,112,198,1.0);fill:rgba(84,112,198,1.0)\"/></svg>",
},
// arrow top
{
fn: func(d *Draw) {
chart.Style{
StrokeWidth: 1,
StrokeColor: drawing.Color{
R: 84,
G: 112,
B: 198,
A: 255,
},
FillColor: drawing.Color{
R: 84,
G: 112,
B: 198,
A: 255,
},
}.WriteToRenderer(d.Render)
d.arrowTop(30, 30, 10, 16)
},
result: "<svg xmlns=\"http://www.w3.org/2000/svg\" xmlns:xlink=\"http://www.w3.org/1999/xlink\" width=\"400\" height=\"300\">\\n<path d=\"M 30 40\nL 35 24\nL 40 40\nL 35 35\nL 30 40\" style=\"stroke-width:1;stroke:rgba(84,112,198,1.0);fill:rgba(84,112,198,1.0)\"/></svg>",
},
// arrow bottom
{
fn: func(d *Draw) {
chart.Style{
StrokeWidth: 1,
StrokeColor: drawing.Color{
R: 84,
G: 112,
B: 198,
A: 255,
},
FillColor: drawing.Color{
R: 84,
G: 112,
B: 198,
A: 255,
},
}.WriteToRenderer(d.Render)
d.arrowBottom(30, 30, 10, 16)
},
result: "<svg xmlns=\"http://www.w3.org/2000/svg\" xmlns:xlink=\"http://www.w3.org/1999/xlink\" width=\"400\" height=\"300\">\\n<path d=\"M 30 24\nL 35 40\nL 40 24\nL 35 30\nL 30 24\" style=\"stroke-width:1;stroke:rgba(84,112,198,1.0);fill:rgba(84,112,198,1.0)\"/></svg>",
},
// mark line
{
fn: func(d *Draw) {
chart.Style{
StrokeWidth: 1,
StrokeColor: drawing.Color{
R: 84,
G: 112,
B: 198,
A: 255,
},
FillColor: drawing.Color{
R: 84,
G: 112,
B: 198,
A: 255,
},
StrokeDashArray: []float64{
4,
2,
},
}.WriteToRenderer(d.Render)
d.makeLine(0, 20, 300)
},
result: "<svg xmlns=\"http://www.w3.org/2000/svg\" xmlns:xlink=\"http://www.w3.org/1999/xlink\" width=\"400\" height=\"300\">\\n<circle cx=\"5\" cy=\"30\" r=\"3\" style=\"stroke-width:1;stroke:rgba(84,112,198,1.0);fill:rgba(84,112,198,1.0)\"/><path stroke-dasharray=\"4.0, 2.0\" d=\"\" style=\"stroke-width:1;stroke:rgba(84,112,198,1.0);fill:rgba(84,112,198,1.0)\"/><path stroke-dasharray=\"4.0, 2.0\" d=\"M 10 30\nL 289 30\" style=\"stroke-width:1;stroke:rgba(84,112,198,1.0);fill:rgba(84,112,198,1.0)\"/><path d=\"M 289 25\nL 305 30\nL 289 35\nL 294 30\nL 289 25\" style=\"stroke-width:1;stroke:rgba(84,112,198,1.0);fill:rgba(84,112,198,1.0)\"/></svg>",
},
}
for _, tt := range tests {
d, err := NewDraw(DrawOption{
Width: 400,
Height: 300,
}, PaddingOption(chart.Box{
Left: 5,
Top: 10,
}))
assert.Nil(err)
tt.fn(d)
data, err := d.Bytes()
assert.Nil(err)
assert.Equal(tt.result, string(data))
}
}
Reference in a new issue View git blame Copy permalink