func TestIssue25(t *testing.T) {
var img imgry.Image
var err error
ng := Engine{}
img, err = ng.LoadFile("../testdata/issue-25.jpg")
assert.NoError(t, err)
assert.Equal(t, 1600, img.Width())
assert.Equal(t, 480, img.Height())
assert.NoError(t, err)
sz, _ := imgry.NewSizingFromQuery("format=jpeg&size=750x922&op=cover")
err = img.SizeIt(sz)
assert.NoError(t, err)
assert.Equal(t, 750, img.Width())
assert.Equal(t, 920, img.Height())
err = img.WriteToFile("../testdata/issue-25-out.jpg")
assert.NoError(t, err)
img.Release()
}
func TestIssue8GIFResize(t *testing.T) {
var sz *imgry.Sizing
var img imgry.Image
var err error
ng := Engine{}
img, err = ng.LoadFile("../testdata/issue-8.gif")
assert.NoError(t, err)
assert.Equal(t, 131, img.Width())
assert.Equal(t, 133, img.Height())
origSize := len(img.Data())
assert.Equal(t, 393324, origSize)
img.Release()
// Resizing to 750, which is slightly smaller.
img, err = ng.LoadFile("../testdata/issue-8.gif")
assert.NoError(t, err)
sz, _ = imgry.NewSizingFromQuery("size=750x")
err = img.SizeIt(sz)
assert.NoError(t, err)
assert.Equal(t, 750, img.Width())
assert.Equal(t, 422, img.Height())
// We should be able to expect this someday, but for now it seems like the
// number of colors after resizing affect the size of the file.
//
// See http://www.imagemagick.org/discourse-server/viewtopic.php?t=22505#p93859
//assert.True(t, len(img.Data()) < origSize, fmt.Sprintf("Expecting %d < %d.", len(img.Data()), origSize))
err = img.WriteToFile("../testdata/issue-8.700.gif")
assert.NoError(t, err)
img.Release()
// Resizing to 500, which is smaller.
img, err = ng.LoadFile("../testdata/issue-8.gif")
assert.NoError(t, err)
sz, _ = imgry.NewSizingFromQuery("size=500x")
err = img.SizeIt(sz)
assert.NoError(t, err)
assert.Equal(t, 500, img.Width())
assert.Equal(t, 282, img.Height())
assert.True(t, len(img.Data()) < origSize, fmt.Sprintf("Expecting %d < %d.", len(img.Data()), origSize))
err = img.WriteToFile("../testdata/issue-8.500.gif")
assert.NoError(t, err)
img.Release()
// Resizing to 900, which is larger.
img, err = ng.LoadFile("../testdata/issue-8.gif")
assert.NoError(t, err)
sz, _ = imgry.NewSizingFromQuery("size=900x")
err = img.SizeIt(sz)
assert.NoError(t, err)
assert.Equal(t, 900, img.Width())
assert.Equal(t, 507, img.Height())
assert.True(t, len(img.Data()) > origSize, fmt.Sprintf("Expecting %d > %d.", len(img.Data()), origSize))
err = img.WriteToFile("../testdata/issue-8.900.gif")
assert.NoError(t, err)
img.Release()
// Resizing to 200, which is smaller.
img, err = ng.LoadFile("../testdata/issue-8.gif")
assert.NoError(t, err)
sz, _ = imgry.NewSizingFromQuery("size=200x")
err = img.SizeIt(sz)
assert.NoError(t, err)
assert.Equal(t, 200, img.Width())
assert.Equal(t, 113, img.Height())
assert.True(t, len(img.Data()) < origSize, fmt.Sprintf("Expecting %d < %d.", len(img.Data()), origSize))
err = img.WriteToFile("../testdata/issue-8.200.gif")
assert.NoError(t, err)
img.Release()
// Resizing to 150, which is smaller.
img, err = ng.LoadFile("../testdata/issue-8.gif")
assert.NoError(t, err)
sz, _ = imgry.NewSizingFromQuery("size=150x")
err = img.SizeIt(sz)
assert.NoError(t, err)
assert.Equal(t, 150, img.Width())
assert.Equal(t, 84, img.Height())
assert.True(t, len(img.Data()) < origSize, fmt.Sprintf("Expecting %d < %d.", len(img.Data()), origSize))
err = img.WriteToFile("../testdata/issue-8.150.gif")
assert.NoError(t, err)
img.Release()
}