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require 'tmpdir'
dir = Dir.mktmpdir "image_science."
ENV['INLINEDIR'] = dir
require 'minitest'
Minitest.after_run do
require 'fileutils'
FileUtils.rm_rf dir
end
require 'rubygems'
require 'minitest/test'
require 'minitest/autorun' if $0 == __FILE__
require 'image_science'
class TestImageScience < Minitest::Test
def setup
@path = 'test/pix.png'
@tmppath = 'test/pix-tmp.png'
@h = @w = 50
end
def teardown
File.unlink @tmppath if File.exist? @tmppath
end
def test_class_with_image
ImageScience.with_image @path do |img|
assert_kind_of ImageScience, img
assert_equal @h, img.height
assert_equal @w, img.width
assert img.save(@tmppath)
end
assert File.exist?(@tmppath)
ImageScience.with_image @tmppath do |img|
assert_kind_of ImageScience, img
assert_equal @h, img.height
assert_equal @w, img.width
end
end
def test_class_with_image_missing
assert_raises TypeError do
ImageScience.with_image @path + "nope" do |img|
flunk
end
end
end
def test_class_with_image_missing_with_img_extension
assert_raises RuntimeError do
assert_nil ImageScience.with_image("nope#{@path}") do |img|
flunk
end
end
end
def test_class_with_image_from_memory
data = File.new(@path).binmode.read
ImageScience.with_image_from_memory data do |img|
assert_kind_of ImageScience, img
assert_equal @h, img.height
assert_equal @w, img.width
assert img.save(@tmppath)
end
assert File.exist?(@tmppath)
ImageScience.with_image @tmppath do |img|
assert_kind_of ImageScience, img
assert_equal @h, img.height
assert_equal @w, img.width
end
end
def test_class_with_image_from_memory_empty_string
assert_raises TypeError do
ImageScience.with_image_from_memory "" do |img|
flunk
end
end
end
def test_resize
ImageScience.with_image @path do |img|
img.resize(25, 25) do |thumb|
assert thumb.save(@tmppath)
end
end
assert File.exist?(@tmppath)
ImageScience.with_image @tmppath do |img|
assert_kind_of ImageScience, img
assert_equal 25, img.height
assert_equal 25, img.width
end
end
def test_resize_floats
ImageScience.with_image @path do |img|
img.resize(25.2, 25.7) do |thumb|
assert thumb.save(@tmppath)
end
end
assert File.exist?(@tmppath)
ImageScience.with_image @tmppath do |img|
assert_kind_of ImageScience, img
assert_equal 25, img.height
assert_equal 25, img.width
end
end
def test_resize_zero
assert_raises ArgumentError do
ImageScience.with_image @path do |img|
img.resize(0, 25) do |thumb|
assert thumb.save(@tmppath)
end
end
end
refute File.exist?(@tmppath)
assert_raises ArgumentError do
ImageScience.with_image @path do |img|
img.resize(25, 0) do |thumb|
assert thumb.save(@tmppath)
end
end
end
refute File.exist?(@tmppath)
end
def test_resize_negative
assert_raises ArgumentError do
ImageScience.with_image @path do |img|
img.resize(-25, 25) do |thumb|
assert thumb.save(@tmppath)
end
end
end
refute File.exist?(@tmppath)
assert_raises ArgumentError do
ImageScience.with_image @path do |img|
img.resize(25, -25) do |thumb|
assert thumb.save(@tmppath)
end
end
end
refute File.exist?(@tmppath)
end
def test_thumbnail
ImageScience.with_image @path do |img|
img.thumbnail(29) do |thumb|
assert thumb.save(@tmppath)
end
end
assert File.exist?(@tmppath)
ImageScience.with_image @tmppath do |img|
assert_kind_of ImageScience, img
assert_equal 29, img.height
assert_equal 29, img.width
end
end
def test_auto_rotate_from_file
ImageScience.with_image "test/portrait.jpg" do |img|
assert_equal 50, img.height
assert_equal 38, img.width
end
end
def test_auto_rotate_from_memory
data = File.new("test/portrait.jpg").binmode.read
ImageScience.with_image_from_memory data do |img|
assert_equal 50, img.height
assert_equal 38, img.width
end
end
def test_rotate
ImageScience.with_image "test/portrait.jpg" do |image|
image.rotate 90 do |img|
assert_equal 50, img.width
assert_equal 38, img.height
end
end
end
def test_rotate_not_45
e = assert_raises ArgumentError do
ImageScience.with_image "test/portrait.jpg" do |image|
image.rotate 44
end
end
assert_equal 'Angle must be 45 degree skew', e.message
end
end
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