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// Copyright 2020 CUE 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 adt
import (
"fmt"
"testing"
)
func TestNilSource(t *testing.T) {
testCases := []Node{
&BasicType{},
&BinaryExpr{},
&Bool{},
&Bottom{},
&BoundExpr{},
&BoundValue{},
&Builtin{},
&BuiltinValidator{},
&BulkOptionalField{},
&Bytes{},
&CallExpr{},
&Conjunction{},
&Disjunction{},
&DisjunctionExpr{},
&DynamicField{},
&DynamicReference{},
&Ellipsis{},
&Field{},
&FieldReference{},
&ForClause{},
&IfClause{},
&ImportReference{},
&IndexExpr{},
&Interpolation{},
&LabelReference{},
&LetClause{},
&LetReference{},
&ListLit{},
&ListMarker{},
&NodeLink{},
&Null{},
&Num{},
&OptionalField{},
&SelectorExpr{},
&SliceExpr{},
&String{},
&StructLit{},
&StructMarker{},
&Top{},
&UnaryExpr{},
&ValueClause{},
&Vertex{},
}
for _, x := range testCases {
t.Run(fmt.Sprintf("%T", x), func(t *testing.T) {
if x.Source() != nil {
t.Error("nil source did not return nil")
}
})
}
}