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
|
// Copyright 2018 The Hugo Authors. All rights reserved.
//
// 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 transform
import (
"bytes"
"strings"
"testing"
qt "github.com/frankban/quicktest"
)
func TestChainZeroTransformers(t *testing.T) {
tr := New()
in := new(bytes.Buffer)
out := new(bytes.Buffer)
if err := tr.Apply(in, out); err != nil {
t.Errorf("A zero transformer chain returned an error.")
}
}
func TestChainingMultipleTransformers(t *testing.T) {
f1 := func(ct FromTo) error {
_, err := ct.To().Write(bytes.Replace(ct.From().Bytes(), []byte("f1"), []byte("f1r"), -1))
return err
}
f2 := func(ct FromTo) error {
_, err := ct.To().Write(bytes.Replace(ct.From().Bytes(), []byte("f2"), []byte("f2r"), -1))
return err
}
f3 := func(ct FromTo) error {
_, err := ct.To().Write(bytes.Replace(ct.From().Bytes(), []byte("f3"), []byte("f3r"), -1))
return err
}
f4 := func(ct FromTo) error {
_, err := ct.To().Write(bytes.Replace(ct.From().Bytes(), []byte("f4"), []byte("f4r"), -1))
return err
}
tr := New(f1, f2, f3, f4)
out := new(bytes.Buffer)
if err := tr.Apply(out, strings.NewReader("Test: f4 f3 f1 f2 f1 The End.")); err != nil {
t.Errorf("Multi transformer chain returned an error: %s", err)
}
expected := "Test: f4r f3r f1r f2r f1r The End."
if out.String() != expected {
t.Errorf("Expected %s got %s", expected, out.String())
}
}
func TestNewEmptyTransforms(t *testing.T) {
c := qt.New(t)
transforms := NewEmpty()
c.Assert(cap(transforms), qt.Equals, 20)
}
|
