1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
|
// 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 astutil_test
import (
"strings"
"testing"
"github.com/google/go-cmp/cmp"
"cuelang.org/go/cue"
"cuelang.org/go/cue/ast"
"cuelang.org/go/cue/ast/astutil"
"cuelang.org/go/cue/cuecontext"
"cuelang.org/go/cue/format"
"cuelang.org/go/cue/token"
_ "cuelang.org/go/pkg"
)
func TestToFile(t *testing.T) {
mat := ast.NewIdent("math")
mat.Node = ast.NewImport(nil, "math")
pi := ast.NewSel(mat, "Pi")
testCases := []struct {
desc string
expr ast.Expr
want string
}{{
desc: "add import",
expr: ast.NewBinExpr(token.ADD, ast.NewLit(token.INT, "1"), pi),
want: "4.141592653589793238462643383279503",
}, {
desc: "resolve unresolved within struct",
expr: ast.NewStruct(
ast.NewIdent("a"), ast.NewString("foo"),
ast.NewIdent("b"), ast.NewIdent("a"),
),
want: `{
a: "foo"
b: "foo"
}`,
}, {
desc: "unshadow",
expr: func() ast.Expr {
ident := ast.NewIdent("a")
ref := ast.NewIdent("a")
ref.Node = ident
return ast.NewStruct(
ident, ast.NewString("bar"),
ast.NewIdent("c"), ast.NewStruct(
ast.NewIdent("a"), ast.NewString("foo"),
ast.NewIdent("b"), ref, // refers to outer `a`.
))
}(),
want: `{
a: "bar"
c: {
a: "foo"
b: "bar"
}
}`,
}}
for _, tc := range testCases {
t.Run(tc.desc, func(t *testing.T) {
f, err := astutil.ToFile(tc.expr)
if err != nil {
t.Fatal(err)
}
v := cuecontext.New().BuildFile(f)
if err := v.Err(); err != nil {
t.Fatal(err)
}
b, err := format.Node(v.Syntax(cue.Concrete(true)))
if err != nil {
t.Fatal(err)
}
got := string(b)
want := strings.TrimLeft(tc.want, "\n")
if got != want {
t.Error(cmp.Diff(want, got))
}
})
}
}
|
