test: add series and legend test

base_series_test.go

@@ -0,0 +1,94 @@
+// 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 (
+	"reflect"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/wcharczuk/go-chart/v2"
+)
+
+func TestBaseSeries(t *testing.T) {
+	assert := assert.New(t)
+
+	bs := BaseSeries{
+		XValues: []float64{
+			1,
+			2,
+			3,
+		},
+		YValues: []float64{
+			10,
+			20,
+			30,
+		},
+	}
+	assert.Equal(3, bs.Len())
+	bs.TickPosition = chart.TickPositionBetweenTicks
+	assert.Equal(2, bs.Len())
+
+	bs.TickPosition = chart.TickPositionUnset
+	x, y := bs.GetValues(1)
+	assert.Equal(float64(2), x)
+	assert.Equal(float64(20), y)
+	bs.TickPosition = chart.TickPositionBetweenTicks
+	x, y = bs.GetValues(1)
+	assert.Equal(float64(3), x)
+	assert.Equal(float64(30), y)
+
+	bs.TickPosition = chart.TickPositionUnset
+	x, y = bs.GetFirstValues()
+	assert.Equal(float64(1), x)
+	assert.Equal(float64(10), y)
+	bs.TickPosition = chart.TickPositionBetweenTicks
+	x, y = bs.GetFirstValues()
+	assert.Equal(float64(2), x)
+	assert.Equal(float64(20), y)
+
+	bs.TickPosition = chart.TickPositionUnset
+	x, y = bs.GetLastValues()
+	assert.Equal(float64(3), x)
+	assert.Equal(float64(30), y)
+	bs.TickPosition = chart.TickPositionBetweenTicks
+	x, y = bs.GetLastValues()
+	assert.Equal(float64(3), x)
+	assert.Equal(float64(30), y)
+
+	xFormater, yFormater := bs.GetValueFormatters()
+	assert.Equal(reflect.ValueOf(chart.FloatValueFormatter).Pointer(), reflect.ValueOf(xFormater).Pointer())
+	assert.Equal(reflect.ValueOf(chart.FloatValueFormatter).Pointer(), reflect.ValueOf(yFormater).Pointer())
+	formater := func(v interface{}) string {
+		return ""
+	}
+	bs.XValueFormatter = formater
+	bs.YValueFormatter = formater
+	xFormater, yFormater = bs.GetValueFormatters()
+	assert.Equal(reflect.ValueOf(formater).Pointer(), reflect.ValueOf(xFormater).Pointer())
+	assert.Equal(reflect.ValueOf(formater).Pointer(), reflect.ValueOf(yFormater).Pointer())
+
+	assert.Equal(chart.YAxisPrimary, bs.GetYAxis())
+
+	assert.Nil(bs.Validate())
+}