terraform/internal/dag/dot_test.go

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package dag
import (
"reflect"
"testing"
)
func TestGraphDot_opts(t *testing.T) {
var v testDotVertex
var g Graph
g.Add(&v)
opts := &DotOpts{MaxDepth: 42}
actual := g.Dot(opts)
if len(actual) == 0 {
t.Fatal("should not be empty")
}
if !v.DotNodeCalled {
t.Fatal("should call DotNode")
}
if !reflect.DeepEqual(v.DotNodeOpts, opts) {
t.Fatalf("bad; %#v", v.DotNodeOpts)
}
}
type testDotVertex struct {
DotNodeCalled bool
DotNodeTitle string
DotNodeOpts *DotOpts
DotNodeReturn *DotNode
}
func (v *testDotVertex) DotNode(title string, opts *DotOpts) *DotNode {
v.DotNodeCalled = true
v.DotNodeTitle = title
v.DotNodeOpts = opts
return v.DotNodeReturn
}