91 lines
1.3 KiB
Go
91 lines
1.3 KiB
Go
package dag
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import (
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"strings"
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"testing"
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)
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func TestGraph_empty(t *testing.T) {
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var g Graph
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g.Add(1)
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g.Add(2)
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g.Add(3)
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actual := strings.TrimSpace(g.String())
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expected := strings.TrimSpace(testGraphEmptyStr)
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if actual != expected {
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t.Fatalf("bad: %s", actual)
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}
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}
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func TestGraph_basic(t *testing.T) {
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var g Graph
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g.Add(1)
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g.Add(2)
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g.Add(3)
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g.Connect(BasicEdge(1, 3))
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actual := strings.TrimSpace(g.String())
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expected := strings.TrimSpace(testGraphBasicStr)
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if actual != expected {
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t.Fatalf("bad: %s", actual)
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}
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}
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func TestGraph_remove(t *testing.T) {
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var g Graph
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g.Add(1)
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g.Add(2)
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g.Add(3)
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g.Connect(BasicEdge(1, 3))
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g.Remove(3)
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actual := strings.TrimSpace(g.String())
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expected := strings.TrimSpace(testGraphRemoveStr)
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if actual != expected {
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t.Fatalf("bad: %s", actual)
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}
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}
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func TestGraph_replace(t *testing.T) {
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var g Graph
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g.Add(1)
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g.Add(2)
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g.Add(3)
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g.Connect(BasicEdge(1, 2))
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g.Connect(BasicEdge(2, 3))
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g.Replace(2, 42)
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actual := strings.TrimSpace(g.String())
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expected := strings.TrimSpace(testGraphReplaceStr)
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if actual != expected {
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t.Fatalf("bad: %s", actual)
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}
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}
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const testGraphBasicStr = `
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1
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3
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2
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3
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`
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const testGraphEmptyStr = `
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1
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2
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3
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`
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const testGraphRemoveStr = `
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1
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2
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`
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const testGraphReplaceStr = `
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1
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42
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3
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42
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3
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`
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