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node_test.go
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node_test.go
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package merkledag
import (
"testing"
)
func TestRemoveLink(t *testing.T) {
nd := &Node{
Links: []*Link{
&Link{Name: "a"},
&Link{Name: "b"},
&Link{Name: "a"},
&Link{Name: "a"},
&Link{Name: "c"},
&Link{Name: "a"},
},
}
err := nd.RemoveNodeLink("a")
if err != nil {
t.Fatal(err)
}
if len(nd.Links) != 2 {
t.Fatal("number of links incorrect")
}
if nd.Links[0].Name != "b" {
t.Fatal("link order wrong")
}
if nd.Links[1].Name != "c" {
t.Fatal("link order wrong")
}
// should fail
err = nd.RemoveNodeLink("a")
if err != ErrNotFound {
t.Fatal("should have failed to remove link")
}
// ensure nothing else got touched
if len(nd.Links) != 2 {
t.Fatal("number of links incorrect")
}
if nd.Links[0].Name != "b" {
t.Fatal("link order wrong")
}
if nd.Links[1].Name != "c" {
t.Fatal("link order wrong")
}
}