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//Copyright 2017 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://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 (
"testing"
"github.com/awalterschulze/gographviz/ast"
"github.com/awalterschulze/gographviz/internal/parser"
)
type bugSubGraphWorldVisitor struct {
t *testing.T
found bool
}
func (w *bugSubGraphWorldVisitor) Visit(v ast.Elem) ast.Visitor {
edge, ok := v.(ast.EdgeStmt)
if !ok {
return w
}
if edge.Source.GetID().String() != "2" {
return w
}
dst := edge.EdgeRHS[0].Destination
if _, ok := dst.(*ast.SubGraph); !ok {
w.t.Fatalf("2 -> Not SubGraph")
} else {
w.found = true
}
return w
}
func TestBugSubGraphWorld(t *testing.T) {
g := analtest(t, "world.gv.txt")
st, err := parser.ParseString(g.String())
if err != nil {
t.Fatal(err)
}
s := &bugSubGraphWorldVisitor{
t: t,
}
st.Walk(s)
if !s.found {
t.Fatalf("2 -> SubGraph not found")
}
}
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