mvdan.cc
1// Copyright 2020 CUE Authors
2//
3// Licensed under the Apache License, Version 2.0 (the "License");
4// you may not use this file except in compliance with the License.
5// You may obtain a copy of the License at
6//
7// http://www.apache.org/licenses/LICENSE-2.0
8//
9// Unless required by applicable law or agreed to in writing, software
10// distributed under the License is distributed on an "AS IS" BASIS,
11// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12// See the License for the specific language governing permissions and
13// limitations under the License.
14
15package encoding
16
17import (
18 "path"
19 "strings"
20 "testing"
21
22 "cuelang.org/go/cue/build"
23 "cuelang.org/go/cue/parser"
24)
25
26func TestValidate(t *testing.T) {
27 testCases := []struct {
28 form build.Form
29 in string
30 err string
31 }{{
32 form: "data",
33 in: `
34 // Foo
35 a: 2
36 "b-b": 3
37 s: -2
38 a: +2
39 `,
40 }, {
41 form: "graph",
42 in: `
43 let X = 3
44 a: X
45 "b-b": 3
46 s: a
47 `,
48 },
49
50 {form: "data", err: "imports", in: `import "foo" `},
51 {form: "data", err: "references", in: `a: a`},
52 {form: "data", err: "expressions", in: `a: 1 + 3`},
53 {form: "data", err: "expressions", in: `a: 1 + 3`},
54 {form: "data", err: "definitions", in: `#a: 1`},
55 {form: "data", err: "constraints", in: `a: <1`},
56 {form: "data", err: "expressions", in: `a: !true`},
57 {form: "data", err: "expressions", in: `a: 1 | 2`},
58 {form: "data", err: "expressions", in: `a: 1 | *2`},
59 {form: "data", err: "references", in: `let X = 3, a: X`},
60 {form: "data", err: "expressions", in: `2+2`},
61 {form: "data", err: "expressions", in: `"\(3)"`},
62 {form: "data", err: "expressions", in: `for x in [2] { a: 2 }`},
63 {form: "data", err: "expressions", in: `a: len([])`},
64 {form: "data", err: "ellipsis", in: `a: [...]`},
65 }
66 for _, tc := range testCases {
67 t.Run(path.Join(string(tc.form), tc.in), func(t *testing.T) {
68 f, err := parser.ParseFile("", tc.in, parser.ParseComments)
69 if err != nil {
70 t.Fatal(err)
71 }
72 d := Decoder{cfg: &Config{}}
73 d.validate(f, &build.File{
74 Filename: "foo.cue",
75 Encoding: build.CUE,
76 Form: tc.form,
77 })
78 if (tc.err == "") != (d.err == nil) {
79 t.Errorf("error: got %v; want %v", tc.err == "", d.err == nil)
80 }
81 if d.err != nil && !strings.Contains(d.err.Error(), tc.err) {
82 t.Errorf("error message did not contain %q: %v", tc.err, d.err)
83 }
84 })
85 }
86}