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edges_test.go
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edges_test.go
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//Copyright 2013 GoGraphviz Authors
//
//Licensed under the Apache License, Version 2.0 (the "License");
//you may not use this file except in compliance with the License.
//You may obtain a copy of the License at
//
// http:https://www.apache.org/licenses/LICENSE-2.0
//
//Unless required by applicable law or agreed to in writing, software
//distributed under the License is distributed on an "AS IS" BASIS,
//WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
//See the License for the specific language governing permissions and
//limitations under the License.
package gographviz
import (
"reflect"
"testing"
)
func TestEdges_Sorted(t *testing.T) {
var tts = map[string]struct {
edges []*Edge
expected []*Edge
}{
"empty": {
edges: []*Edge{},
expected: []*Edge{},
},
"one edge": {
edges: []*Edge{
{Src: "0", Dst: "1", Attrs: Attrs{Label: "abc"}},
},
expected: []*Edge{
{Src: "0", Dst: "1", Attrs: Attrs{Label: "abc"}},
},
},
"two non parallel edges": {
edges: []*Edge{
{Src: "0", Dst: "2", Attrs: Attrs{Label: "hello"}},
{Src: "0", Dst: "1", Attrs: Attrs{Label: "abc"}},
},
expected: []*Edge{
{Src: "0", Dst: "1", Attrs: Attrs{Label: "abc"}},
{Src: "0", Dst: "2", Attrs: Attrs{Label: "hello"}},
},
},
"two parallel edges": {
edges: []*Edge{
{Src: "0", Dst: "1", Attrs: Attrs{Label: "hello"}},
{Src: "0", Dst: "1", Attrs: Attrs{Label: "abc"}},
},
expected: []*Edge{
{Src: "0", Dst: "1", Attrs: Attrs{Label: "abc"}},
{Src: "0", Dst: "1", Attrs: Attrs{Label: "hello"}},
},
},
"two parallel edges - one without label": {
edges: []*Edge{
{Src: "0", Dst: "1", Attrs: Attrs{Label: "abc"}},
{Src: "0", Dst: "1"},
},
expected: []*Edge{
{Src: "0", Dst: "1"},
{Src: "0", Dst: "1", Attrs: Attrs{Label: "abc"}},
},
},
"several non parallel edges": {
edges: []*Edge{
{Src: "0", Dst: "2", Attrs: Attrs{Label: "hello"}},
{Src: "1", Dst: "1", Attrs: Attrs{Label: "world"}},
{Src: "0", Dst: "1", Attrs: Attrs{Label: "abc"}},
{Src: "1", Dst: "0", Attrs: Attrs{Label: "golang"}},
},
expected: []*Edge{
{Src: "0", Dst: "1", Attrs: Attrs{Label: "abc"}},
{Src: "0", Dst: "2", Attrs: Attrs{Label: "hello"}},
{Src: "1", Dst: "0", Attrs: Attrs{Label: "golang"}},
{Src: "1", Dst: "1", Attrs: Attrs{Label: "world"}},
},
},
"several with parallel edges": {
edges: []*Edge{
{Src: "0", Dst: "2", Attrs: Attrs{Label: "hello"}},
{Src: "0", Dst: "1", Attrs: Attrs{Label: "cba"}},
{Src: "1", Dst: "1", Attrs: Attrs{Label: "world"}},
{Src: "0", Dst: "1", Attrs: Attrs{Label: "abc"}},
{Src: "1", Dst: "0", Attrs: Attrs{Label: "gopher"}},
{Src: "1", Dst: "0", Attrs: Attrs{Label: "golang"}},
},
expected: []*Edge{
{Src: "0", Dst: "1", Attrs: Attrs{Label: "abc"}},
{Src: "0", Dst: "1", Attrs: Attrs{Label: "cba"}},
{Src: "0", Dst: "2", Attrs: Attrs{Label: "hello"}},
{Src: "1", Dst: "0", Attrs: Attrs{Label: "golang"}},
{Src: "1", Dst: "0", Attrs: Attrs{Label: "gopher"}},
{Src: "1", Dst: "1", Attrs: Attrs{Label: "world"}},
},
},
"edges with ports": {
edges: []*Edge{
{Src: "0", Dst: "1", SrcPort: "a", DstPort: "b"},
{Src: "0", Dst: "1", SrcPort: "a", DstPort: "a"},
{Src: "0", Dst: "1", SrcPort: "b", DstPort: "a"},
},
expected: []*Edge{
{Src: "0", Dst: "1", SrcPort: "a", DstPort: "a"},
{Src: "0", Dst: "1", SrcPort: "a", DstPort: "b"},
{Src: "0", Dst: "1", SrcPort: "b", DstPort: "a"},
},
},
"directed edges before non directed edges": {
edges: []*Edge{
{Src: "0", Dst: "1", Dir: false},
{Src: "0", Dst: "1", Dir: true},
},
expected: []*Edge{
{Src: "0", Dst: "1", Dir: true},
{Src: "0", Dst: "1", Dir: false},
},
},
"the theory of everything": {
edges: []*Edge{
{Src: "0", Dst: "1", Attrs: Attrs{Label: "cba"}},
{Src: "1", Dst: "0", SrcPort: "a", Dir: false, Attrs: Attrs{Label: "gopher"}},
{Src: "0", Dst: "1", Attrs: Attrs{Label: "abc"}},
{Src: "0", Dst: "2", Attrs: Attrs{Label: "hello"}},
{Src: "1", Dst: "0", Attrs: Attrs{Label: "gopher"}},
{Src: "1", Dst: "0", Attrs: Attrs{Label: "golang"}},
{Src: "1", Dst: "0", SrcPort: "b", Attrs: Attrs{Label: "gopher"}},
{Src: "1", Dst: "0", SrcPort: "a", DstPort: "b", Attrs: Attrs{Label: "golang"}},
{Src: "1", Dst: "1", Attrs: Attrs{"comment": "test", Label: "world"}},
{Src: "1", Dst: "0", SrcPort: "a", DstPort: "a", Attrs: Attrs{Label: "golang"}},
{Src: "1", Dst: "0", SrcPort: "a", Attrs: Attrs{Label: "golang"}},
{Src: "1", Dst: "0", SrcPort: "b", Dir: false, Attrs: Attrs{Label: "gopher"}},
{Src: "1", Dst: "1", Attrs: Attrs{Label: "world"}},
{Src: "1", Dst: "0", SrcPort: "a", DstPort: "b", Dir: true, Attrs: Attrs{Label: "golang"}},
{Src: "1", Dst: "1", Attrs: Attrs{"comment": "test", Label: "hello"}},
{Src: "1", Dst: "0", SrcPort: "a", Dir: true, Attrs: Attrs{Label: "golang"}},
{Src: "1", Dst: "0", SrcPort: "a", DstPort: "b", Dir: true, Attrs: Attrs{Label: "graphviz"}},
},
expected: []*Edge{
{Src: "0", Dst: "1", Attrs: Attrs{Label: "abc"}},
{Src: "0", Dst: "1", Attrs: Attrs{Label: "cba"}},
{Src: "0", Dst: "2", Attrs: Attrs{Label: "hello"}},
{Src: "1", Dst: "0", Attrs: Attrs{Label: "golang"}},
{Src: "1", Dst: "0", Attrs: Attrs{Label: "gopher"}},
{Src: "1", Dst: "0", SrcPort: "a", Dir: true, Attrs: Attrs{Label: "golang"}},
{Src: "1", Dst: "0", SrcPort: "a", Attrs: Attrs{Label: "golang"}},
{Src: "1", Dst: "0", SrcPort: "a", Dir: false, Attrs: Attrs{Label: "gopher"}},
{Src: "1", Dst: "0", SrcPort: "a", DstPort: "a", Attrs: Attrs{Label: "golang"}},
{Src: "1", Dst: "0", SrcPort: "a", DstPort: "b", Dir: true, Attrs: Attrs{Label: "golang"}},
{Src: "1", Dst: "0", SrcPort: "a", DstPort: "b", Dir: true, Attrs: Attrs{Label: "graphviz"}},
{Src: "1", Dst: "0", SrcPort: "a", DstPort: "b", Attrs: Attrs{Label: "golang"}},
{Src: "1", Dst: "0", SrcPort: "b", Dir: false, Attrs: Attrs{Label: "gopher"}},
{Src: "1", Dst: "0", SrcPort: "b", Attrs: Attrs{Label: "gopher"}},
{Src: "1", Dst: "1", Attrs: Attrs{Label: "world"}},
{Src: "1", Dst: "1", Attrs: Attrs{"comment": "test", Label: "hello"}},
{Src: "1", Dst: "1", Attrs: Attrs{"comment": "test", Label: "world"}},
},
},
}
for name, tt := range tts {
edges := NewEdges()
for _, e := range tt.edges {
edges.Add(e)
}
s := edges.Sorted()
if !reflect.DeepEqual(tt.expected, s) {
t.Errorf("%s - Sorted invalid: expected %v got %v", name, tt.expected, s)
} else if !reflect.DeepEqual(edges.Edges, tt.edges) {
t.Errorf("%s - Sorted should not have changed original order: expected %v got %v", name, tt.edges, edges.Edges)
}
}
}