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// Copyright 2019 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 hugolib
import (
"io"
"os"
"path/filepath"
"testing"
"github.com/gohugoio/hugo/htesting"
"github.com/gohugoio/hugo/hugofs"
"github.com/spf13/viper"
"github.com/stretchr/testify/require"
)
// We have many tests for the different resize operations etc. in the resource package,
// this is an integration test.
func TestImageResize(t *testing.T) {
assert := require.New(t)
// Make this a real as possible.
workDir, clean, err := htesting.CreateTempDir(hugofs.Os, "image-resize")
assert.NoError(err)
defer clean()
newBuilder := func() *sitesBuilder {
v := viper.New()
v.Set("workingDir", workDir)
v.Set("baseURL", "https://example.org")
b := newTestSitesBuilder(t).WithWorkingDir(workDir)
b.Fs = hugofs.NewDefault(v)
b.WithViper(v)
b.WithContent("mybundle/index.md", `
---
title: "My bundle"
---
`)
b.WithTemplatesAdded("index.html", `
{{ $p := .Site.GetPage "mybundle" }}
{{ $img1 := resources.Get "images/sunset.jpg" }}
{{ $img2 := $p.Resources.GetMatch "sunset.jpg" }}
{{ $r := $img1.Resize "123x234" }}
{{ $r2 := $r.Resize "12x23" }}
{{ $b := $img2.Resize "345x678" }}
{{ $b2 := $b.Resize "34x67" }}
{{ $images := slice $r $r2 $b $b2 }}
{{ range $i, $r := $images }}
{{ printf "Resized%d:" (add $i 1) }} {{ $r.Name }}|{{ $r.Width }}|{{ $r.Height }}|{{ $r.MediaType }}|{{ $r.RelPermalink }}|
{{ end }}
`)
return b
}
imageDir := filepath.Join(workDir, "assets", "images")
bundleDir := filepath.Join(workDir, "content", "mybundle")
assert.NoError(os.MkdirAll(imageDir, 0777))
assert.NoError(os.MkdirAll(bundleDir, 0777))
src, err := os.Open("testdata/sunset.jpg")
assert.NoError(err)
out, err := os.Create(filepath.Join(imageDir, "sunset.jpg"))
assert.NoError(err)
_, err = io.Copy(out, src)
assert.NoError(err)
out.Close()
src.Seek(0, 0)
out, err = os.Create(filepath.Join(bundleDir, "sunset.jpg"))
assert.NoError(err)
_, err = io.Copy(out, src)
assert.NoError(err)
out.Close()
src.Close()
b := newBuilder()
b.Build(BuildCfg{})
imgExpect := []string{
"Resized1: images/sunset.jpg|123|234|image/jpg|/images/sunset_hu59e56ffff1bc1d8d122b1403d34e039f_90587_123x234_resize_q75_box.jpg|",
"Resized2: images/sunset.jpg|12|23|image/jpg|/images/sunset_hu59e56ffff1bc1d8d122b1403d34e039f_90587_ada4bb1a57f77a63306e3bd67286248e.jpg|",
"Resized3: sunset.jpg|345|678|image/jpg|/mybundle/sunset_hu59e56ffff1bc1d8d122b1403d34e039f_90587_345x678_resize_q75_box.jpg|",
"Resized4: sunset.jpg|34|67|image/jpg|/mybundle/sunset_hu59e56ffff1bc1d8d122b1403d34e039f_90587_44d8c928664d7c5a67377c6ec58425ce.jpg|",
}
b.AssertFileContent(filepath.Join(workDir, "public/index.html"), imgExpect...)
// Build it again to make sure we read images from file cache.
b = newBuilder()
b.Build(BuildCfg{})
b.AssertFileContent(filepath.Join(workDir, "public/index.html"), imgExpect...)
}
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