1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
|
// Copyright ©2016 The Gonum Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package plotter_test
import (
"testing"
"gonum.org/v1/plot"
"gonum.org/v1/plot/cmpimg"
"gonum.org/v1/plot/plotter"
"gonum.org/v1/plot/vg"
"gonum.org/v1/plot/vg/draw"
"gonum.org/v1/plot/vg/recorder"
)
func TestSankey_simple(t *testing.T) {
cmpimg.CheckPlot(ExampleSankey_simple, t, "sankeySimple.png")
}
func TestSankey_grouped(t *testing.T) {
cmpimg.CheckPlot(ExampleSankey_grouped, t, "sankeyGrouped.png")
}
// This test checks whether the Sankey plotter makes any changes to
// the input Flows.
func TestSankey_idempotent(t *testing.T) {
flows := []plotter.Flow{
{
SourceCategory: 0,
SourceLabel: "Large",
ReceptorCategory: 1,
ReceptorLabel: "Mohamed",
Value: 5,
},
{
SourceCategory: 0,
SourceLabel: "Small",
ReceptorCategory: 1,
ReceptorLabel: "Sofia",
Value: 5,
},
}
s, err := plotter.NewSankey(flows...)
if err != nil {
t.Fatal(err)
}
p, err := plot.New()
if err != nil {
t.Fatal(err)
}
p.Add(s)
p.HideAxes()
// Draw the plot once.
c1 := new(recorder.Canvas)
dc1 := draw.NewCanvas(c1, vg.Centimeter, vg.Centimeter)
p.Draw(dc1)
// Draw the plot a second time.
c2 := new(recorder.Canvas)
dc2 := draw.NewCanvas(c2, vg.Centimeter, vg.Centimeter)
p.Draw(dc2)
if len(c1.Actions) != len(c2.Actions) {
t.Errorf("inconsistent number of actions: %d != %d", len(c2.Actions), len(c1.Actions))
}
for i, a1 := range c1.Actions {
if a1.Call() != c2.Actions[i].Call() {
t.Errorf("action %d: %s\n\t!= %s", i, c2.Actions[i].Call(), a1.Call())
}
}
}
|
