71 lines
2.0 KiB
Go
71 lines
2.0 KiB
Go
// Copyright 2018 The Hugo Authors. All rights reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package transform
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import (
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"bytes"
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"strings"
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"testing"
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qt "github.com/frankban/quicktest"
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)
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func TestChainZeroTransformers(t *testing.T) {
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tr := New()
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in := new(bytes.Buffer)
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out := new(bytes.Buffer)
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if err := tr.Apply(in, out); err != nil {
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t.Errorf("A zero transformer chain returned an error.")
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}
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}
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func TestChainingMultipleTransformers(t *testing.T) {
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f1 := func(ct FromTo) error {
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_, err := ct.To().Write(bytes.Replace(ct.From().Bytes(), []byte("f1"), []byte("f1r"), -1))
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return err
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}
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f2 := func(ct FromTo) error {
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_, err := ct.To().Write(bytes.Replace(ct.From().Bytes(), []byte("f2"), []byte("f2r"), -1))
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return err
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}
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f3 := func(ct FromTo) error {
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_, err := ct.To().Write(bytes.Replace(ct.From().Bytes(), []byte("f3"), []byte("f3r"), -1))
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return err
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}
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f4 := func(ct FromTo) error {
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_, err := ct.To().Write(bytes.Replace(ct.From().Bytes(), []byte("f4"), []byte("f4r"), -1))
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return err
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}
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tr := New(f1, f2, f3, f4)
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out := new(bytes.Buffer)
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if err := tr.Apply(out, strings.NewReader("Test: f4 f3 f1 f2 f1 The End.")); err != nil {
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t.Errorf("Multi transformer chain returned an error: %s", err)
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}
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expected := "Test: f4r f3r f1r f2r f1r The End."
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if out.String() != expected {
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t.Errorf("Expected %s got %s", expected, out.String())
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}
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}
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func TestNewEmptyTransforms(t *testing.T) {
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c := qt.New(t)
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transforms := NewEmpty()
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c.Assert(cap(transforms), qt.Equals, 20)
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}
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