1 files changed, 134 insertions, 0 deletions
diff --git a/resource/image_test.go b/resource/image_test.go
new file mode 100644
index 000000000..3543abb37
--- /dev/null
+++ b/resource/image_test.go
@@ -0,0 +1,134 @@
+// Copyright 2017-present 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 resource
+
+import (
+	"fmt"
+	"os"
+	"testing"
+
+	"github.com/stretchr/testify/require"
+)
+
+func TestParseImageConfig(t *testing.T) {
+	for i, this := range []struct {
+		in     string
+		expect interface{}
+	}{
+		{"300x400", newImageConfig(300, 400, 0, 0, "", "")},
+		{"100x200 bottomRight", newImageConfig(100, 200, 0, 0, "", "BottomRight")},
+		{"10x20 topleft Lanczos", newImageConfig(10, 20, 0, 0, "Lanczos", "topleft")},
+		{"linear left 10x r180", newImageConfig(10, 0, 0, 180, "linear", "left")},
+		{"x20 riGht Cosine q95", newImageConfig(0, 20, 95, 0, "cosine", "right")},
+
+		{"", false},
+		{"foo", false},
+	} {
+		result, err := parseImageConfig(this.in)
+		if b, ok := this.expect.(bool); ok && !b {
+			if err == nil {
+				t.Errorf("[%d] parseImageConfig didn't return an expected error", i)
+			}
+		} else {
+			if err != nil {
+				t.Fatalf("[%d] err: %s", i, err)
+			}
+			if fmt.Sprint(result) != fmt.Sprint(this.expect) {
+				t.Fatalf("[%d] got\n%v\n but expected\n%v", i, result, this.expect)
+			}
+		}
+	}
+}
+
+func TestImageTransform(t *testing.T) {
+	fiModTimeFunc = func(fi os.FileInfo) int64 {
+		return int64(10111213)
+	}
+
+	assert := require.New(t)
+
+	image := fetchSunset(assert)
+
+	assert.Equal("/a/sunset.jpg", image.RelPermalink())
+	assert.Equal("image", image.ResourceType())
+
+	resized, err := image.Resize("300x200")
+	assert.NoError(err)
+	assert.True(image != resized)
+	assert.True(image.genericResource != resized.genericResource)
+
+	resized0x, err := image.Resize("x200")
+	assert.NoError(err)
+	assert.Equal(320, resized0x.Width())
+	assert.Equal(200, resized0x.Height())
+	assertFileCache(assert, image.spec.Fs, resized0x.RelPermalink(), 320, 200)
+
+	resizedx0, err := image.Resize("200x")
+	assert.NoError(err)
+	assert.Equal(200, resizedx0.Width())
+	assert.Equal(125, resizedx0.Height())
+	assertFileCache(assert, image.spec.Fs, resizedx0.RelPermalink(), 200, 125)
+
+	resizedAndRotated, err := image.Resize("x200 r90")
+	assert.NoError(err)
+	assert.Equal(125, resizedAndRotated.Width())
+	assert.Equal(200, resizedAndRotated.Height())
+	assertFileCache(assert, image.spec.Fs, resizedAndRotated.RelPermalink(), 125, 200)
+
+	assert.Equal("/a/sunset_S90587_T10111213_300x200_resize_q75_box_center.jpg", resized.RelPermalink())
+	assert.Equal(300, resized.Width())
+	assert.Equal(200, resized.Height())
+
+	fitted, err := resized.Fit("50x50")
+	assert.NoError(err)
+	assert.Equal("/a/sunset_S90587_T10111213_300x200_resize_q75_box_center_50x50_fit_q75_box_center.jpg", fitted.RelPermalink())
+	assert.Equal(50, fitted.Width())
+	assert.Equal(31, fitted.Height())
+
+	// Check the MD5 key threshold
+	fittedAgain, _ := fitted.Fit("10x20")
+	fittedAgain, err = fittedAgain.Fit("10x20")
+	assert.NoError(err)
+	assert.Equal("/a/sunset_f1fb715a17c42d5d4602a1870424d590.jpg", fittedAgain.RelPermalink())
+	assert.Equal(10, fittedAgain.Width())
+	assert.Equal(6, fittedAgain.Height())
+
+	filled, err := image.Fill("200x100 bottomLeft")
+	assert.NoError(err)
+	assert.Equal("/a/sunset_S90587_T10111213_200x100_fill_q75_box_bottomleft.jpg", filled.RelPermalink())
+	assert.Equal(200, filled.Width())
+	assert.Equal(100, filled.Height())
+	assertFileCache(assert, image.spec.Fs, filled.RelPermalink(), 200, 100)
+
+	// Check cache
+	filledAgain, err := image.Fill("200x100 bottomLeft")
+	assert.NoError(err)
+	assert.True(filled == filledAgain)
+	assertFileCache(assert, image.spec.Fs, filledAgain.RelPermalink(), 200, 100)
+
+}
+
+func TestDecodeImaging(t *testing.T) {
+	assert := require.New(t)
+	m := map[string]interface{}{
+		"quality":        42,
+		"resampleFilter": "NearestNeighbor",
+	}
+
+	imaging, err := decodeImaging(m)
+
+	assert.NoError(err)
+	assert.Equal(42, imaging.Quality)
+	assert.Equal("nearestneighbor", imaging.ResampleFilter)
+}