test: add test for bar series

2021-12-20 23:16:31 +08:00 · 2021-12-20 23:16:31 +08:00 · acc758cb9a
commit acc758cb9a
parent bf25dad141
3 changed files with 202 additions and 18 deletions
--- a/bar_series_test.go
+++ b/bar_series_test.go
@ -0,0 +1,165 @@
+// MIT License
+
+// Copyright (c) 2021 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 (
+	"bytes"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/wcharczuk/go-chart/v2"
+	"github.com/wcharczuk/go-chart/v2/drawing"
+)
+
+func TestBarSeries(t *testing.T) {
+	assert := assert.New(t)
+
+	customStyle := chart.Style{
+		StrokeColor: drawing.ColorBlue,
+	}
+	bs := BarSeries{
+		CustomStyles: []BarSeriesCustomStyle{
+			{
+				PointIndex: 1,
+				Style:      customStyle,
+			},
+		},
+	}
+
+	assert.Equal(customStyle, bs.GetBarStyle(0, 1))
+
+	assert.True(bs.GetBarStyle(1, 0).IsZero())
+}
+
+func TestBarSeriesGetWidthValues(t *testing.T) {
+	assert := assert.New(t)
+
+	bs := BarSeries{
+		Count: 1,
+		BaseSeries: BaseSeries{
+			XValues: []float64{
+				1,
+				2,
+				3,
+			},
+		},
+	}
+	widthValues := bs.getWidthValues(300)
+	assert.Equal(barSeriesWidthValues{
+		columnWidth:  100,
+		columnMargin: 10,
+		margin:       10,
+		barWidth:     80,
+	}, widthValues)
+
+	bs.Margin = 5
+	widthValues = bs.getWidthValues(300)
+	assert.Equal(barSeriesWidthValues{
+		columnWidth:  100,
+		columnMargin: 10,
+		margin:       5,
+		barWidth:     80,
+	}, widthValues)
+
+	bs.BarWidth = 60
+	widthValues = bs.getWidthValues(300)
+	assert.Equal(barSeriesWidthValues{
+		columnWidth:  100,
+		columnMargin: 20,
+		margin:       5,
+		barWidth:     60,
+	}, widthValues)
+
+}
+
+func TestBarSeriesRender(t *testing.T) {
+	assert := assert.New(t)
+
+	width := 800
+	height := 400
+
+	r, err := chart.SVG(width, height)
+	assert.Nil(err)
+
+	bs := BarSeries{
+		Count: 1,
+		CustomStyles: []BarSeriesCustomStyle{
+			{
+				Index:      0,
+				PointIndex: 1,
+				Style: chart.Style{
+					StrokeColor: SeriesColorsLight[1],
+				},
+			},
+		},
+		BaseSeries: BaseSeries{
+			TickPosition: chart.TickPositionBetweenTicks,
+			Style: chart.Style{
+				StrokeColor: SeriesColorsLight[0],
+				StrokeWidth: 1,
+			},
+			XValues: []float64{
+				0,
+				1,
+				2,
+				3,
+				4,
+				5,
+				6,
+				7,
+			},
+			YValues: []float64{
+				// 第一个点为占位点
+				0,
+				120,
+				200,
+				150,
+				80,
+				70,
+				110,
+				130,
+			},
+		},
+	}
+	xrange := &chart.ContinuousRange{
+		Min:    0,
+		Max:    7,
+		Domain: 753,
+	}
+	yrange := &chart.ContinuousRange{
+		Min:    70,
+		Max:    200,
+		Domain: 362,
+	}
+	bs.Render(r, chart.Box{
+		Top:    11,
+		Left:   42,
+		Right:  795,
+		Bottom: 373,
+	}, xrange, yrange, chart.Style{})
+
+	buffer := bytes.Buffer{}
+	err = r.Save(&buffer)
+	assert.Nil(err)
+	assert.Equal("<svg xmlns=\"http://www.w3.org/2000/svg\" xmlns:xlink=\"http://www.w3.org/1999/xlink\" width=\"800\" height=\"400\">\\n<path  d=\"M 53 233\nL 140 233\nL 140 372\nL 53 372\nL 53 233\" style=\"stroke-width:1;stroke:rgba(84,112,198,1.0);fill:rgba(84,112,198,1.0)\"/><path  d=\"M 161 11\nL 248 11\nL 248 372\nL 161 372\nL 161 11\" style=\"stroke-width:1;stroke:rgba(145,204,117,1.0);fill:none\"/><path  d=\"M 268 150\nL 355 150\nL 355 372\nL 268 372\nL 268 150\" style=\"stroke-width:1;stroke:rgba(84,112,198,1.0);fill:rgba(84,112,198,1.0)\"/><path  d=\"M 376 345\nL 463 345\nL 463 372\nL 376 372\nL 376 345\" style=\"stroke-width:1;stroke:rgba(84,112,198,1.0);fill:rgba(84,112,198,1.0)\"/><path  d=\"M 483 373\nL 570 373\nL 570 372\nL 483 372\nL 483 373\" style=\"stroke-width:1;stroke:rgba(84,112,198,1.0);fill:rgba(84,112,198,1.0)\"/><path  d=\"M 591 261\nL 678 261\nL 678 372\nL 591 372\nL 591 261\" style=\"stroke-width:1;stroke:rgba(84,112,198,1.0);fill:rgba(84,112,198,1.0)\"/><path  d=\"M 698 205\nL 785 205\nL 785 372\nL 698 372\nL 698 205\" style=\"stroke-width:1;stroke:rgba(84,112,198,1.0);fill:rgba(84,112,198,1.0)\"/></svg>", buffer.String())
+}