| // 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") | |
| } | |
| }) | |
| } | |
| } |