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
|
// Copyright 2020 Google LLC
//
// 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 ext
import (
"fmt"
"strings"
"testing"
"github.com/google/cel-go/cel"
)
func TestEncoders(t *testing.T) {
var tests = []struct {
expr string
err string
parseOnly bool
}{
{expr: "base64.decode('aGVsbG8=') == b'hello'"},
{
expr: "base64.decode('aGVsbG8') == b'error'",
err: "illegal base64 data at input byte 4",
},
{
expr: "base64.decode(b'aGVsbG8=') == b'hello'",
err: "no such overload",
parseOnly: true,
},
{expr: "base64.encode(b'hello') == 'aGVsbG8='"},
{
expr: "base64.encode('hello') == b'aGVsbG8='",
err: "no such overload",
parseOnly: true,
},
}
env, err := cel.NewEnv(Encoders())
if err != nil {
t.Fatalf("cel.NewEnv(Encoders()) failed: %v", err)
}
for i, tst := range tests {
tc := tst
t.Run(fmt.Sprintf("[%d]", i), func(t *testing.T) {
var asts []*cel.Ast
pAst, iss := env.Parse(tc.expr)
if iss.Err() != nil {
t.Fatalf("env.Parse(%v) failed: %v", tc.expr, iss.Err())
}
asts = append(asts, pAst)
if !tc.parseOnly {
cAst, iss := env.Check(pAst)
if iss.Err() != nil {
t.Fatalf("env.Check(%v) failed: %v", tc.expr, iss.Err())
}
asts = append(asts, cAst)
}
for _, ast := range asts {
prg, err := env.Program(ast)
if err != nil {
t.Fatal(err)
}
out, _, err := prg.Eval(cel.NoVars())
if tc.err != "" {
if err == nil {
t.Fatalf("got %v, wanted error %s for expr: %s",
out.Value(), tc.err, tc.expr)
}
if !strings.Contains(err.Error(), tc.err) {
t.Errorf("got error %v, wanted error %s for expr: %s", err, tc.err, tc.expr)
}
} else if err != nil {
t.Fatal(err)
} else if out.Value() != true {
t.Errorf("got %v, wanted true for expr: %s", out.Value(), tc.expr)
}
}
})
}
}
|
