#!/usr/bin/env ruby -w
require 'rmagick'
require 'test/unit'
require 'test/unit/ui/console/testrunner' unless RUBY_VERSION[/^1\.9|^2/]
# TODO: improve exif tests - need a benchmark image with EXIF data
class Image2_UT < Test::Unit::TestCase
FreezeError = RUBY_VERSION[/^1\.9|^2/] ? RuntimeError : TypeError
def setup
@img = Magick::Image.new(20, 20)
end
def test_composite!
img1 = Magick::Image.read(IMAGES_DIR+'/Button_0.gif').first
img2 = Magick::Image.read(IMAGES_DIR+'/Button_1.gif').first
assert_nothing_raised do
res = img1.composite!(img2, Magick::NorthWestGravity, Magick::OverCompositeOp)
assert_same(img1, res)
end
img1.freeze
assert_raise(FreezeError) { img1.composite!(img2, Magick::NorthWestGravity, Magick::OverCompositeOp) }
end
def test_composite_affine
affine = Magick::AffineMatrix.new(1, 0, 1, 0, 0, 0)
img1 = Magick::Image.read(IMAGES_DIR+'/Button_0.gif').first
img2 = Magick::Image.read(IMAGES_DIR+'/Button_1.gif').first
assert_nothing_raised do
res = img1.composite_affine(img2, affine)
assert_instance_of(Magick::Image, res)
assert_not_same(@img, res)
end
end
def test_composite_mathematics
bg = Magick::Image.new(50, 50)
fg = Magick::Image.new(50, 50) {self.background_color = 'black' }
res = nil
assert_nothing_raised { res = bg.composite_mathematics(fg, 1, 0, 0, 0, Magick::CenterGravity) }
assert_instance_of(Magick::Image, res)
assert_not_same(bg, res)
assert_not_same(fg, res)
assert_nothing_raised { res = bg.composite_mathematics(fg, 1, 0, 0, 0, 0.0, 0.0) }
assert_nothing_raised { res = bg.composite_mathematics(fg, 1, 0, 0, 0, Magick::CenterGravity, 0.0, 0.0) }
# too few arguments
assert_raise(ArgumentError) { bg.composite_mathematics(fg, 1, 0, 0, 0) }
# too many arguments
assert_raise(ArgumentError) { bg.composite_mathematics(fg, 1, 0, 0, 0, Magick::CenterGravity, 0.0, 0.0, 'x') }
end
def test_composite_tiled
bg = Magick::Image.new(200,200)
fg = Magick::Image.new(50,100) { self.background_color = 'black' }
res = nil
assert_nothing_raised do
res = bg.composite_tiled(fg)
end
assert_instance_of(Magick::Image, res)
assert_not_same(bg, res)
assert_not_same(fg, res)
assert_nothing_raised { bg.composite_tiled!(fg) }
assert_nothing_raised { bg.composite_tiled(fg, Magick::AtopCompositeOp) }
assert_nothing_raised { bg.composite_tiled(fg, Magick::OverCompositeOp) }
assert_nothing_raised { bg.composite_tiled(fg, Magick::RedChannel) }
assert_nothing_raised { bg.composite_tiled(fg, Magick::RedChannel, Magick::GreenChannel) }
fg.destroy!
assert_raise(Magick::DestroyedImageError) { bg.composite_tiled(fg) }
end
def test_compress_colormap!
# DirectClass images are converted to PseudoClass
assert_equal(Magick::DirectClass, @img.class_type)
assert_nothing_raised { @img.compress_colormap! }
assert_equal(Magick::PseudoClass, @img.class_type)
img = Magick::Image.read(IMAGES_DIR+'/Button_0.gif').first
assert_equal(Magick::PseudoClass, @img.class_type)
assert_nothing_raised { @img.compress_colormap! }
end
def test_contrast
assert_nothing_raised do
res = @img.contrast
assert_instance_of(Magick::Image, res)
assert_not_same(@img, res)
end
assert_nothing_raised { @img.contrast(true) }
assert_raise(ArgumentError) { @img.contrast(true, 2) }
end
def test_contrast_stretch_channel
assert_nothing_raised do
res = @img.contrast_stretch_channel(25)
assert_instance_of(Magick::Image, res)
assert_not_same(@img, res)
end
assert_nothing_raised { @img.contrast_stretch_channel(25, 50) }
assert_nothing_raised { @img.contrast_stretch_channel('10%') }
assert_nothing_raised { @img.contrast_stretch_channel('10%', '50%') }
assert_nothing_raised { @img.contrast_stretch_channel(25, 50, Magick::RedChannel) }
assert_nothing_raised { @img.contrast_stretch_channel(25, 50, Magick::RedChannel, Magick::GreenChannel) }
assert_raise(TypeError) { @img.contrast_stretch_channel(25, 50, 'x') }
assert_raise(ArgumentError) { @img.contrast_stretch_channel }
assert_raise(ArgumentError) { @img.contrast_stretch_channel('x') }
assert_raise(ArgumentError) { @img.contrast_stretch_channel(25, 'x') }
end
def test_convolve
kernel = [1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0]
order = 3
assert_nothing_raised do
res = @img.convolve(order, kernel)
assert_instance_of(Magick::Image, res)
assert_not_same(@img, res)
end
assert_raise(ArgumentError) { @img.convolve }
assert_raise(ArgumentError) { @img.convolve(order) }
assert_raise(IndexError) { @img.convolve(5, kernel) }
assert_raise(IndexError) { @img.convolve(order, 'x') }
assert_raise(TypeError) { @img.convolve(3, [1.0, 1.0, 1.0, 1.0, 'x', 1.0, 1.0, 1.0, 1.0]) }
assert_raise(Magick::ImageMagickError) { @img.convolve(-1, [1.0, 1.0, 1.0, 1.0]) }
end
def test_convolve_channel
assert_raise(ArgumentError) { @img.convolve_channel }
assert_raise(ArgumentError) { @img.convolve_channel(3) }
kernel = [1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0]
order = 3
assert_nothing_raised do
res = @img.convolve_channel(order, kernel, Magick::RedChannel)
assert_instance_of(Magick::Image, res)
assert_not_same(@img, res)
end
assert_nothing_raised { @img.convolve_channel(order, kernel, Magick::RedChannel, Magick:: BlueChannel) }
assert_raise(TypeError) { @img.convolve_channel(order, kernel, Magick::RedChannel, 2) }
end
def test_copy
assert_nothing_raised do
ditto = @img.copy
assert_equal(@img, ditto)
end
ditto = @img.copy
assert_equal(@img.tainted?, ditto.tainted?)
@img.taint
ditto = @img.copy
assert_equal(@img.tainted?, ditto.tainted?)
end
def test_crop
assert_raise(ArgumentError) { @img.crop }
assert_raise(ArgumentError) { @img.crop(0, 0) }
assert_nothing_raised do
res = @img.crop(0, 0, @img.columns/2, @img.rows/2)
assert_instance_of(Magick::Image, res)
assert_not_same(@img, res)
end
gravity = [
Magick::NorthEastGravity,
Magick::EastGravity,
Magick::SouthWestGravity,
Magick::SouthGravity,
Magick::SouthEastGravity]
# 3-argument form
gravity.each do |grav|
assert_nothing_raised { @img.crop(grav, @img.columns/2, @img.rows/2) }
end
assert_raise(TypeError) { @img.crop(2, @img.columns/2, @img.rows/2) }
assert_raise(TypeError) { @img.crop(Magick::NorthWestGravity, @img.columns/2, @img.rows/2, 2) }
# 4-argument form
assert_raise(TypeError) { @img.crop(0, 0, @img.columns/2, 'x') }
assert_raise(TypeError) { @img.crop(0, 0, 'x', @img.rows/2) }
assert_raise(TypeError) { @img.crop(0, 'x', @img.columns/2, @img.rows/2) }
assert_raise(TypeError) { @img.crop('x', 0, @img.columns/2, @img.rows/2) }
assert_raise(TypeError) { @img.crop(0, 0, @img.columns/2, @img.rows/2, 2) }
# 5-argument form
gravity.each do |grav|
assert_nothing_raised { @img.crop(grav, 0, 0, @img.columns/2, @img.rows/2) }
end
assert_raise(ArgumentError) { @img.crop(Magick::NorthWestGravity, 0, 0, @img.columns/2, @img.rows/2, 2) }
end
def test_crop!
assert_nothing_raised do
res = @img.crop!(0, 0, @img.columns/2, @img.rows/2)
assert_same(@img, res)
end
end
def test_cycle_colormap
assert_nothing_raised do
res = @img.cycle_colormap(5)
assert_instance_of(Magick::Image, res)
assert_not_same(@img, res)
assert_equal(Magick::PseudoClass, res.class_type)
end
end
def test_decipher # tests encipher, too.
res = res2 = nil
assert_nothing_raised do
res = @img.encipher 'passphrase'
res2 = res.decipher 'passphrase'
end
assert_instance_of(Magick::Image, res)
assert_not_same(@img, res)
assert_equal(@img.columns, res.columns)
assert_equal(@img.rows, res.rows)
assert_instance_of(Magick::Image, res2)
assert_not_same(@img, res2)
assert_equal(@img.columns, res2.columns)
assert_equal(@img.rows, res2.rows)
assert_equal(@img, res2)
end
def test_define
assert_nothing_raised { @img.define('deskew:auto-crop', 40) }
assert_nothing_raised { @img.undefine('deskew:auto-crop') }
end
def test_deskew
assert_nothing_raised do
res = @img.deskew
assert_instance_of(Magick::Image, res)
assert_not_same(@img, res)
end
assert_nothing_raised { @img.deskew(0.10) }
assert_nothing_raised { @img.deskew('95%') }
assert_raise(ArgumentError) { @img.deskew('x') }
assert_raise(TypeError) {@img.deskew(0.40, 'x') }
assert_raise(ArgumentError) {@img.deskew(0.40, 20, [1]) }
end
def test_despeckle
assert_nothing_raised do
res = @img.despeckle
assert_instance_of(Magick::Image, res)
assert_not_same(@img, res)
end
end
# ensure methods detect destroyed images
def test_destroy
methods = Magick::Image.instance_methods(false).sort
if RUBY_VERSION[/^1\.9|^2/]
methods -= [:__display__, :destroy!, :destroyed?, :inspect, :cur_image, :marshal_load]
else
methods -= %w{ __display__ destroy! destroyed? inspect cur_image marshal_load}
end
assert_equal(false, @img.destroyed?)
@img.destroy!
assert_equal(true, @img.destroyed?)
assert_raises(Magick::DestroyedImageError) { @img.check_destroyed }
methods.each do |method|
arity = @img.method(method).arity
method = method.to_s
case
when method == '[]='
assert_raises(Magick::DestroyedImageError) { @img['foo'] = 1 }
when method == 'difference'
other = Magick::Image.new(20,20)
assert_raises(Magick::DestroyedImageError) { @img.difference(other) }
when method == 'get_iptc_dataset'
assert_raises(Magick::DestroyedImageError) { @img.get_iptc_dataset('x') }
when method == 'profile!'
assert_raises(Magick::DestroyedImageError) { @img.profile!('x', 'y') }
when /=\Z/.match(method)
assert_raises(Magick::DestroyedImageError) { @img.send(method, 1) }
when arity == 0
assert_raises(Magick::DestroyedImageError) { @img.send(method) }
when arity < 0
args = (1..(-arity)).to_a
assert_raises(Magick::DestroyedImageError) { @img.send(method, *args) }
when arity > 0
args = (1..(arity)).to_a
assert_raises(Magick::DestroyedImageError) { @img.send(method, *args) }
else
# Don't know how to test!
flunk("don't know how to test method #{method}")
end
end
end
# ensure destroy! works
def test_destroy2
images = {}
GC.disable
Magick.trace_proc = proc do |which, id, addr, method|
m = id.split(/ /)
name = File.basename m[0]
format = m[1]
size = m[2]
geometry = m[3]
image_class = m[4]
assert(which == :c || which == :d, "unexpected value for which: #{which}")
assert_equal(:destroy!, method) if which == :d
if which == :c
assert(!images.has_key?(addr), 'duplicate image addresses')
images[addr] = name
else
assert(images.has_key?(addr), 'destroying image that was not created')
assert_equal(name, images[addr])
end
end
unmapped = Magick::ImageList.new(IMAGES_DIR+'/Hot_Air_Balloons.jpg', IMAGES_DIR+'/Violin.jpg', IMAGES_DIR+'/Polynesia.jpg')
map = Magick::ImageList.new 'netscape:'
mapped = unmapped.map map, false
unmapped.each {|i| i.destroy!}
map.destroy!
mapped.each {|i| i.destroy!}
ensure
GC.enable
Magick.trace_proc = nil
end
def test_difference
img1 = Magick::Image.read(IMAGES_DIR+'/Button_0.gif').first
img2 = Magick::Image.read(IMAGES_DIR+'/Button_1.gif').first
assert_nothing_raised do
res = img1.difference(img2)
assert_instance_of(Array, res)
assert_equal(3, res.length)
assert_instance_of(Float, res[0])
assert_instance_of(Float, res[1])
assert_instance_of(Float, res[2])
end
assert_raise(NoMethodError) { img1.difference(2) }
img2.destroy!
assert_raise(Magick::DestroyedImageError) { img1.difference(img2) }
end
def test_displace
@img2 = Magick::Image.new(20,20) {self.background_color = 'black'}
assert_nothing_raised { @img.displace(@img2, 25) }
res = @img.displace(@img2, 25)
assert_instance_of(Magick::Image, res)
assert_not_same(@img, res)
assert_nothing_raised { @img.displace(@img2, 25, 25) }
assert_nothing_raised { @img.displace(@img2, 25, 25, 10) }
assert_nothing_raised { @img.displace(@img2, 25, 25, 10, 10) }
assert_nothing_raised { @img.displace(@img2, 25, 25, Magick::CenterGravity) }
assert_nothing_raised { @img.displace(@img2, 25, 25, Magick::CenterGravity, 10) }
assert_nothing_raised { @img.displace(@img2, 25, 25, Magick::CenterGravity, 10, 10) }
assert_raise(ArgumentError) { @img.displace }
assert_raise(TypeError) { @img.displace(@img2, 'x') }
assert_raise(TypeError) { @img.displace(@img2, 25, []) }
assert_raise(TypeError) { @img.displace(@img2, 25, 25, 'x') }
assert_raise(TypeError) { @img.displace(@img2, 25, 25, Magick::CenterGravity, 'x') }
assert_raise(TypeError) { @img.displace(@img2, 25, 25, Magick::CenterGravity, 10, []) }
@img2.destroy!
assert_raise(Magick::DestroyedImageError) { @img.displace(@img2, 25, 25) }
end
def test_dissolve
src = Magick::Image.new(@img.columns, @img.rows)
src_list = Magick::ImageList.new
src_list << src.copy
assert_nothing_raised { @img.dissolve(src, 0.50) }
assert_nothing_raised { @img.dissolve(src_list, 0.50) }
assert_nothing_raised { @img.dissolve(src, '50%') }
assert_nothing_raised { @img.dissolve(src, 0.50, 0.10) }
assert_nothing_raised { @img.dissolve(src, 0.50, 0.10, 10) }
assert_nothing_raised { @img.dissolve(src, 0.50, 0.10, Magick::NorthEastGravity) }
assert_nothing_raised { @img.dissolve(src, 0.50, 0.10, Magick::NorthEastGravity, 10) }
assert_nothing_raised { @img.dissolve(src, 0.50, 0.10, Magick::NorthEastGravity, 10, 10) }
assert_raise(ArgumentError) { @img.dissolve(src, 'x') }
assert_raise(ArgumentError) { @img.dissolve(src, 0.50, 'x') }
assert_raise(TypeError) { @img.dissolve(src, 0.50, Magick::NorthEastGravity, 'x') }
assert_raise(TypeError) { @img.dissolve(src, 0.50, Magick::NorthEastGravity, 10, 'x') }
src.destroy!
assert_raise(Magick::DestroyedImageError) { @img.dissolve(src, 0.50) }
end
def test_distort
@img = Magick::Image.new(200, 200)
assert_nothing_raised { @img.distort(Magick::AffineDistortion, [2,60, 2,60, 32,60, 32,60, 2,30, 17,35]) }
assert_nothing_raised { @img.distort(Magick::AffineProjectionDistortion, [1,0,0,1,0,0]) }
assert_nothing_raised { @img.distort(Magick::BilinearDistortion, [7,40, 4,30, 4,124, 4,123, 85,122, 100,123, 85,2, 100,30]) }
assert_nothing_raised { @img.distort(Magick::PerspectiveDistortion, [7,40, 4,30, 4,124, 4,123, 85,122, 100,123, 85,2, 100,30]) }
assert_nothing_raised { @img.distort(Magick::ScaleRotateTranslateDistortion, [28,24, 0.4,0.8 -110, 37.5,60]) }
assert_raise(ArgumentError) { @img.distort }
assert_raise(ArgumentError) { @img.distort(Magick::AffineDistortion) }
assert_raise(TypeError) { @img.distort(1, [1]) }
end
def test_distortion_channel
assert_nothing_raised do
metric = @img.distortion_channel(@img, Magick::MeanAbsoluteErrorMetric)
assert_instance_of(Float, metric)
assert_equal(0.0, metric)
end
assert_nothing_raised { @img.distortion_channel(@img, Magick::MeanSquaredErrorMetric) }
assert_nothing_raised { @img.distortion_channel(@img, Magick::PeakAbsoluteErrorMetric) }
assert_nothing_raised { @img.distortion_channel(@img, Magick::PeakSignalToNoiseRatioMetric) }
assert_nothing_raised { @img.distortion_channel(@img, Magick::RootMeanSquaredErrorMetric) }
assert_nothing_raised { @img.distortion_channel(@img, Magick::MeanSquaredErrorMetric, Magick::RedChannel, Magick:: BlueChannel) }
assert_raise(TypeError) { @img.distortion_channel(@img, 2) }
assert_raise(TypeError) { @img.distortion_channel(@img, Magick::RootMeanSquaredErrorMetric, 2) }
assert_raise(ArgumentError) { @img.distortion_channel }
assert_raise(ArgumentError) { @img.distortion_channel(@img) }
img = Magick::Image.new(20,20)
img.destroy!
assert_raise(Magick::DestroyedImageError) { @img.distortion_channel(img, Magick::MeanSquaredErrorMetric) }
end
def test_dup
assert_nothing_raised do
ditto = @img.dup
assert_equal(@img, ditto)
end
ditto = @img.dup
assert_equal(@img.tainted?, ditto.tainted?)
@img.taint
ditto = @img.dup
assert_equal(@img.tainted?, ditto.tainted?)
end
def test_each_profile
@img.iptc_profile = 'test profile'
assert_nothing_raised do
@img.each_profile do |name, value|
assert_equal('iptc', name)
# As of 6.3.1
if IM_VERSION < Gem::Version.new('6.6.4') || (IM_VERSION == Gem::Version.new('6.6.4') && IM_REVISION < Gem::Version.new('5'))
assert_equal("8BIM\004\004\000\000\000\000\001\340test profile", value)
else
assert_equal('test profile', value)
end
end
end
end
def test_edge
assert_nothing_raised do
res = @img.edge
assert_instance_of(Magick::Image, res)
assert_not_same(@img, res)
end
assert_nothing_raised { @img.edge(2.0) }
assert_raise(ArgumentError) { @img.edge(2.0, 2) }
assert_raise(TypeError) { @img.edge('x') }
end
def test_emboss
assert_nothing_raised do
res = @img.emboss
assert_instance_of(Magick::Image, res)
assert_not_same(@img, res)
end
assert_nothing_raised { @img.emboss(1.0) }
assert_nothing_raised { @img.emboss(1.0, 0.5) }
assert_raise(ArgumentError) { @img.emboss(1.0, 0.5, 2) }
assert_raise(TypeError) { @img.emboss(1.0, 'x') }
assert_raise(TypeError) { @img.emboss('x', 1.0) }
end
def test_enhance
assert_nothing_raised do
res = @img.enhance
assert_instance_of(Magick::Image, res)
assert_not_same(@img, res)
end
end
def test_equalize
assert_nothing_raised do
res = @img.equalize
assert_instance_of(Magick::Image, res)
assert_not_same(@img, res)
end
end
def test_equalize_channel
assert_nothing_raised do
res = @img.equalize_channel
assert_instance_of(Magick::Image, res)
assert_not_same(@img, res)
end
assert_nothing_raised { @img.equalize_channel }
assert_nothing_raised { @img.equalize_channel(Magick::RedChannel) }
assert_nothing_raised { @img.equalize_channel(Magick::RedChannel, Magick::BlueChannel) }
assert_raise(TypeError) { @img.equalize_channel(Magick::RedChannel, 2) }
end
def test_erase!
assert_nothing_raised do
res = @img.erase!
assert_same(@img, res)
end
end
def test_excerpt
res = nil
img = Magick::Image.new(200, 200)
assert_nothing_raised { res = @img.excerpt(20,20,50,100) }
assert_not_same(img, res)
assert_equal(50, res.columns)
assert_equal(100, res.rows)
assert_nothing_raised { img.excerpt!(20,20,50,100) }
assert_equal(50, img.columns)
assert_equal(100, img.rows)
end
def test_export_pixels
assert_nothing_raised do
res = @img.export_pixels
assert_instance_of(Array, res)
assert_equal(@img.columns*@img.rows*'RGB'.length, res.length)
res.each do |p|
assert_kind_of(Integer, p)
end
end
assert_nothing_raised { res = @img.export_pixels(0) }
assert_nothing_raised { res = @img.export_pixels(0, 0) }
assert_nothing_raised { res = @img.export_pixels(0, 0, 10) }
assert_nothing_raised { res = @img.export_pixels(0, 0, 10, 10) }
assert_nothing_raised do
res = @img.export_pixels(0, 0, 10, 10, 'RGBA')
assert_equal(10*10*'RGBA'.length, res.length)
end
assert_nothing_raised do
res = @img.export_pixels(0, 0, 10, 10, 'I')
assert_equal(10*10*'I'.length, res.length)
end
# too many arguments
assert_raise(ArgumentError) { @img.export_pixels(0, 0, 10, 10, 'I', 2) }
end
def test_export_pixels_to_str
assert_nothing_raised do
res = @img.export_pixels_to_str
assert_instance_of(String, res)
assert_equal(@img.columns*@img.rows*'RGB'.length, res.length)
end
assert_nothing_raised { @img.export_pixels_to_str(0) }
assert_nothing_raised { @img.export_pixels_to_str(0, 0) }
assert_nothing_raised { @img.export_pixels_to_str(0, 0, 10) }
assert_nothing_raised { @img.export_pixels_to_str(0, 0, 10, 10) }
assert_nothing_raised do
res = @img.export_pixels_to_str(0, 0, 10, 10, 'RGBA')
assert_equal(10*10*'RGBA'.length, res.length)
end
assert_nothing_raised do
res = @img.export_pixels_to_str(0, 0, 10, 10, 'I')
assert_equal(10*10*'I'.length, res.length)
end
assert_nothing_raised do
res = @img.export_pixels_to_str(0, 0, 10, 10, 'I', Magick::CharPixel)
assert_equal(10*10*1, res.length)
end
assert_nothing_raised do
res = @img.export_pixels_to_str(0, 0, 10, 10, 'I', Magick::ShortPixel)
assert_equal(10*10*2, res.length)
end
assert_nothing_raised do
res = @img.export_pixels_to_str(0, 0, 10, 10, 'I', Magick::IntegerPixel)
assert_equal(10*10*4, res.length)
end
assert_nothing_raised do
res = @img.export_pixels_to_str(0, 0, 10, 10, 'I', Magick::LongPixel)
assert_equal(10*10*[1].pack('L!').length, res.length)
end
assert_nothing_raised do
res = @img.export_pixels_to_str(0, 0, 10, 10, 'I', Magick::FloatPixel)
assert_equal(10*10*4, res.length)
end
assert_nothing_raised do
res = @img.export_pixels_to_str(0, 0, 10, 10, 'I', Magick::DoublePixel)
assert_equal(10*10*8, res.length)
end
assert_nothing_raised { @img.export_pixels_to_str(0, 0, 10, 10, 'I', Magick::QuantumPixel) }
# too many arguments
assert_raise(ArgumentError) { @img.export_pixels_to_str(0, 0, 10, 10, 'I', Magick::QuantumPixel, 1) }
# last arg s/b StorageType
assert_raise(TypeError) { @img.export_pixels_to_str(0, 0, 10, 10, 'I', 2) }
end
def test_extent
assert_nothing_raised { @img.extent(40, 40) }
res = @img.extent(40, 40)
assert_instance_of(Magick::Image, res)
assert_not_same(@img, res)
assert_equal(40, res.columns)
assert_equal(40, res.rows)
assert_nothing_raised { @img.extent(40, 40, 5) }
assert_nothing_raised { @img.extent(40, 40, 5, 5) }
assert_raises(ArgumentError) { @img.extent(-40, 40) }
assert_raises(ArgumentError) { @img.extent(40, -40) }
assert_raises(TypeError) { @img.extent('x', 40) }
assert_raises(TypeError) { @img.extent(40, 'x') }
assert_raises(TypeError) { @img.extent(40, 40, 'x') }
assert_raises(TypeError) { @img.extent(40, 40, 5, 'x') }
end
def test_find_similar_region
girl = Magick::Image.read(IMAGES_DIR+'/Flower_Hat.jpg').first
region = girl.crop(10, 10, 50, 50)
assert_nothing_raised do
x, y = girl.find_similar_region(region)
assert_not_nil(x)
assert_not_nil(y)
assert_equal(10, x)
assert_equal(10, y)
end
assert_nothing_raised do
x, y = girl.find_similar_region(region, 0)
assert_equal(10, x)
assert_equal(10, y)
end
assert_nothing_raised do
x, y = girl.find_similar_region(region, 0, 0)
assert_equal(10, x)
assert_equal(10, y)
end
list = Magick::ImageList.new
list << region
assert_nothing_raised do
x, y = girl.find_similar_region(list, 0, 0)
assert_equal(10, x)
assert_equal(10, y)
end
x = girl.find_similar_region(@img)
assert_nil(x)
assert_raise(ArgumentError) { girl.find_similar_region(region, 10, 10, 10) }
assert_raise(TypeError) { girl.find_similar_region(region, 10, 'x') }
assert_raise(TypeError) { girl.find_similar_region(region, 'x') }
region.destroy!
assert_raise(Magick::DestroyedImageError) { girl.find_similar_region(region) }
end
def test_flip
assert_nothing_raised do
res = @img.flip
assert_instance_of(Magick::Image, res)
assert_not_same(@img, res)
end
end
def test_flip!
assert_nothing_raised do
res = @img.flip!
assert_same(@img, res)
end
end
def test_flop
assert_nothing_raised do
res = @img.flop
assert_instance_of(Magick::Image, res)
assert_not_same(@img, res)
end
end
def test_flop!
assert_nothing_raised do
res = @img.flop!
assert_same(@img, res)
end
end
def test_frame
assert_nothing_raised do
res = @img.frame
assert_instance_of(Magick::Image, res)
assert_not_same(@img, res)
end
assert_nothing_raised { @img.frame(50) }
assert_nothing_raised { @img.frame(50, 50) }
assert_nothing_raised { @img.frame(50, 50, 25) }
assert_nothing_raised { @img.frame(50, 50, 25, 25) }
assert_nothing_raised { @img.frame(50, 50, 25, 25, 6) }
assert_nothing_raised { @img.frame(50, 50, 25, 25, 6, 6) }
assert_nothing_raised { @img.frame(50, 50, 25, 25, 6, 6, 'red') }
red = Magick::Pixel.new(Magick::QuantumRange)
assert_nothing_raised { @img.frame(50, 50, 25, 25, 6, 6, red) }
assert_raise(TypeError) { @img.frame(50, 50, 25, 25, 6, 6, 2) }
end
def test_gamma_channel
assert_nothing_raised do
res = @img.gamma_channel(0.8)
assert_instance_of(Magick::Image, res)
assert_not_same(@img, res)
end
assert_raise(ArgumentError) { @img.gamma_channel }
assert_nothing_raised { @img.gamma_channel(0.8, Magick::RedChannel) }
assert_nothing_raised { @img.gamma_channel(0.8, Magick::RedChannel, Magick::BlueChannel) }
assert_raise(TypeError) { @img.gamma_channel(0.8, Magick::RedChannel, 2) }
end
def test_function_channel
img = Magick::Image.read('gradient:') {self.size = '20x600'}
img = img.first
img.rotate!(90)
assert_nothing_raised { img.function_channel Magick::PolynomialFunction, 0.33 }
assert_nothing_raised { img.function_channel Magick::PolynomialFunction, 4, -1.5 }
assert_nothing_raised { img.function_channel Magick::PolynomialFunction, 4, -4, 1 }
assert_nothing_raised { img.function_channel Magick::PolynomialFunction, -25, 53, -36, 8.3, 0.2 }
assert_nothing_raised { img.function_channel Magick::SinusoidFunction, 1 }
assert_nothing_raised { img.function_channel Magick::SinusoidFunction, 1, 90 }
assert_nothing_raised { img.function_channel Magick::SinusoidFunction, 5, 90, 0.25, 0.75 }
assert_nothing_raised { img.function_channel Magick::ArcsinFunction, 1 }
assert_nothing_raised { img.function_channel Magick::ArcsinFunction, 0.5 }
assert_nothing_raised { img.function_channel Magick::ArcsinFunction, 0.4, 0.7 }
assert_nothing_raised { img.function_channel Magick::ArcsinFunction, 0.5, 0.5, 0.5, 0.5 }
assert_nothing_raised { img.function_channel Magick::ArctanFunction, 1 }
assert_nothing_raised { img.function_channel Magick::ArctanFunction, 10, 0.7 }
assert_nothing_raised { img.function_channel Magick::ArctanFunction, 5, 0.7, 1.2 }
assert_nothing_raised { img.function_channel Magick::ArctanFunction, 15, 0.7, 0.5, 0.75 }
# with channel args
assert_nothing_raised { img.function_channel Magick::PolynomialFunction, 0.33, Magick::RedChannel }
assert_nothing_raised { img.function_channel Magick::SinusoidFunction, 1, Magick::RedChannel, Magick::BlueChannel }
# invalid args
assert_raise(ArgumentError) { img.function_channel }
assert_raise(TypeError) { img.function_channel 1 }
assert_raise(ArgumentError) { img.function_channel Magick::PolynomialFunction }
assert_raise(TypeError) { img.function_channel Magick::PolynomialFunction, [] }
assert_raise(ArgumentError) { img.function_channel Magick::SinusoidFunction, 5, 90, 0.25, 0.75, 0.1 }
assert_raise(ArgumentError) { img.function_channel Magick::ArcsinFunction, 0.5, 0.5, 0.5, 0.5, 0.1 }
assert_raise(ArgumentError) { img.function_channel Magick::ArctanFunction, 15, 0.7, 0.5, 0.75, 0.1 }
end
def test_gramma_correct
assert_raise(ArgumentError) { @img.gamma_correct }
# All 4 arguments can't default to 1.0
assert_raise(ArgumentError) { @img.gamma_correct(1.0) }
assert_nothing_raised do
res = @img.gamma_correct(0.8)
assert_instance_of(Magick::Image, res)
assert_not_same(@img, res)
end
assert_nothing_raised { @img.gamma_correct(0.8, 0.9) }
assert_nothing_raised { @img.gamma_correct(0.8, 0.9, 1.0) }
assert_nothing_raised { @img.gamma_correct(0.8, 0.9, 1.0, 1.1) }
# too many arguments
assert_raise(ArgumentError) { @img.gamma_correct(0.8, 0.9, 1.0, 1.1, 2) }
end
def test_gaussian_blur
assert_nothing_raised do
res = @img.gaussian_blur
assert_instance_of(Magick::Image, res)
assert_not_same(@img, res)
end
assert_nothing_raised { @img.gaussian_blur(0.0) }
assert_nothing_raised { @img.gaussian_blur(0.0, 3.0) }
# sigma must be != 0.0
assert_raise(ArgumentError) { @img.gaussian_blur(1.0, 0.0) }
assert_raise(ArgumentError) { @img.gaussian_blur(1.0, 3.0, 2) }
end
def test_gaussian_blur_channel
assert_nothing_raised do
res = @img.gaussian_blur_channel
assert_instance_of(Magick::Image, res)
assert_not_same(@img, res)
end
assert_nothing_raised { @img.gaussian_blur_channel(0.0) }
assert_nothing_raised { @img.gaussian_blur_channel(0.0, 3.0) }
assert_nothing_raised { @img.gaussian_blur_channel(0.0, 3.0, Magick::RedChannel) }
assert_nothing_raised { @img.gaussian_blur_channel(0.0, 3.0, Magick::RedChannel, Magick::BlueChannel) }
assert_raise(TypeError) { @img.gaussian_blur_channel(0.0, 3.0, Magick::RedChannel, 2) }
end
def test_get_exif_by_entry
assert_nothing_raised do
res = @img.get_exif_by_entry
assert_instance_of(Array, res)
end
end
def test_get_exif_by_number
assert_nothing_raised do
res = @img.get_exif_by_number
assert_instance_of(Hash, res)
end
end
def test_get_pixels
assert_nothing_raised do
pixels = @img.get_pixels(0, 0, @img.columns, 1)
assert_instance_of(Array, pixels)
assert_equal(@img.columns, pixels.length)
assert_block do
pixels.all? { |p| p.is_a? Magick::Pixel }
end
end
assert_raise(RangeError) { @img.get_pixels(0, 0, -1, 1) }
assert_raise(RangeError) { @img.get_pixels(0, 0, @img.columns, -1) }
assert_raise(RangeError) { @img.get_pixels(0, 0, @img.columns+1, 1) }
assert_raise(RangeError) { @img.get_pixels(0, 0, @img.columns, @img.rows+1) }
end
def test_gray?
gray = Magick::Image.new(20, 20) { self.background_color = 'gray50' }
assert(gray.gray?)
red = Magick::Image.new(20, 20) { self.background_color = 'red' }
assert(!red.gray?)
end
def test_histogram?
assert_nothing_raised { @img.histogram? }
assert(@img.histogram?)
end
def test_implode
assert_nothing_raised do
res = @img.implode(0.5)
assert_instance_of(Magick::Image, res)
assert_not_same(@img, res)
end
end
def test_import_pixels
pixels = @img.export_pixels(0, 0, @img.columns, 1, 'RGB')
assert_nothing_raised do
res = @img.import_pixels(0, 0, @img.columns, 1, 'RGB', pixels)
assert_same(@img, res)
end
assert_raise(ArgumentError) { @img.import_pixels }
assert_raise(ArgumentError) { @img.import_pixels(0) }
assert_raise(ArgumentError) { @img.import_pixels(0, 0) }
assert_raise(ArgumentError) { @img.import_pixels(0, 0, @img.columns) }
assert_raise(ArgumentError) { @img.import_pixels(0, 0, @img.columns, 1) }
assert_raise(ArgumentError) { @img.import_pixels(0, 0, @img.columns, 1, 'RGB') }
assert_raise(TypeError) { @img.import_pixels('x', 0, @img.columns, 1, 'RGB', pixels) }
assert_raise(TypeError) { @img.import_pixels(0, 'x', @img.columns, 1, 'RGB', pixels) }
assert_raise(TypeError) { @img.import_pixels(0, 0, 'x', 1, 'RGB', pixels) }
assert_raise(TypeError) { @img.import_pixels(0, 0, @img.columns, 'x', 'RGB', pixels) }
assert_raise(TypeError) { @img.import_pixels(0, 0, @img.columns, 1, [2], pixels) }
assert_raise(ArgumentError) { @img.import_pixels(-1, 0, @img.columns, 1, 'RGB', pixels) }
assert_raise(ArgumentError) { @img.import_pixels(0, -1, @img.columns, 1, 'RGB', pixels) }
assert_raise(ArgumentError) { @img.import_pixels(0, 0, -1, 1, 'RGB', pixels) }
assert_raise(ArgumentError) { @img.import_pixels(0, 0, @img.columns, -1, 'RGB', pixels) }
# pixel array is too small
assert_raise(ArgumentError) { @img.import_pixels(0, 0, @img.columns, 2, 'RGB', pixels) }
# pixel array doesn't contain a multiple of the map length
pixels.shift
assert_raise(ArgumentError) { @img.import_pixels(0, 0, @img.columns, 1, 'RGB', pixels) }
end
def test_level
assert_nothing_raised do
res = @img.level
assert_instance_of(Magick::Image, res)
assert_not_same(@img, res)
end
assert_nothing_raised { @img.level(0.0) }
assert_nothing_raised { @img.level(0.0, 1.0) }
assert_nothing_raised { @img.level(0.0, 1.0, Magick::QuantumRange) }
assert_raise(ArgumentError) { @img.level(0.0, 1.0, Magick::QuantumRange, 2) }
assert_raise(ArgumentError) { @img.level('x') }
assert_raise(ArgumentError) { @img.level(0.0, 'x') }
assert_raise(ArgumentError) { @img.level(0.0, 1.0, 'x') }
end
# Ensure that #level properly swaps old-style arg list
def test_level2
img1 = @img.level(10, 2, 200)
img2 = @img.level(10, 200, 2)
assert_equal(img2, img1)
# Ensure that level2 uses new arg order
img1 = @img.level2(10, 200, 2)
assert_equal(img2, img1)
end
def test_level_channel
assert_raise(ArgumentError) { @img.level_channel }
assert_nothing_raised do
res = @img.level_channel(Magick::RedChannel)
assert_instance_of(Magick::Image, res)
assert_not_same(@img, res)
end
assert_nothing_raised { @img.level_channel(Magick::RedChannel, 0.0) }
assert_nothing_raised { @img.level_channel(Magick::RedChannel, 0.0, 1.0) }
assert_nothing_raised { @img.level_channel(Magick::RedChannel, 0.0, 1.0, Magick::QuantumRange) }
assert_raise(ArgumentError) { @img.level_channel(Magick::RedChannel, 0.0, 1.0, Magick::QuantumRange, 2) }
assert_raise(TypeError) { @img.level_channel(2) }
assert_raise(TypeError) { @img.level_channel(Magick::RedChannel, 'x') }
assert_raise(TypeError) { @img.level_channel(Magick::RedChannel, 0.0, 'x') }
assert_raise(TypeError) { @img.level_channel(Magick::RedChannel, 0.0, 1.0, 'x') }
end
def level_colors
res = nil
assert_nothing_raised do
res = @img.level_colors
end
assert_instance_of(Magick::Image, res)
assert_not_same(@img, res)
assert_nothing_raised { @img.level_colors('black') }
assert_nothing_raised { @img.level_colors('black', Pixel.new(0,0,0)) }
assert_nothing_raised { @img.level_colors(Pixel.new(0,0,0), Pixel.new(Magick::QuantumRange,Magick::QuantumRange,Magick::QuantumRange)) }
assert_nothing_raised { @img.level_colors('black', 'white') }
assert_nothing_raised { @img.level_colors('black', 'white', false) }
# too many arguments
assert_raises(ArgumentError) { @img.level_colors('black', 'white', false, 1) }
# not a pixel or a string
assert_raises(ArgumentError) { @img.level_colors([]) }
# not a color name
assert_raises(ArgumentError) { @img.level_colors('xxx') }
end
def levelize_channel
res = nil
assert_nothing_raised do
res = @img.levelize_channel(0, Magick::QuantumRange)
end
assert_instance_of(Magick::Image, res)
assert_not_same(@img, res)
assert_nothing_raised { @img.levelize_channel(0, Magick::QuantumRange, 0.5) }
assert_nothing_raised { @img.levelize_channel(0, Magick::QuantumRange, 0.5, Magick::RedChannel) }
assert_nothing_raised { @img.levelize_channel(0, Magick::QuantumRange, 0.5, Magick::RedChannel, Magick::BlueChannel) }
# too many arguments
assert_raise(ArgumentError) { @img.levelize_channel(0, Magick::QuantumRange, 0.5, 1, Magick::RedChannel) }
# not enough arguments
assert_raise(ArgumentError) { @img.levelize_channel }
end
# def test_liquid_rescale
# begin
# @img.liquid_rescale(15,15)
# rescue NotImplementedError
# puts "liquid_rescale not implemented."
# return
# end
#
# res = nil
# assert_nothing_raised do
# res = @img.liquid_rescale(15, 15)
# end
# assert_equal(15, res.columns)
# assert_equal(15, res.rows)
# assert_nothing_raised { @img.liquid_rescale(15, 15, 0, 0) }
# assert_raise(ArgumentError) { @img.liquid_rescale(15) }
# assert_raise(ArgumentError) { @img.liquid_rescale(15, 15, 0, 0, 0) }
# assert_raise(TypeError) { @img.liquid_rescale([], 15) }
# assert_raise(TypeError) { @img.liquid_rescale(15, []) }
# assert_raise(TypeError) { @img.liquid_rescale(15, 15, []) }
# assert_raise(TypeError) { @img.liquid_rescale(15, 15, 0, []) }
# end
def test_magnify
assert_nothing_raised do
res = @img.magnify
assert_instance_of(Magick::Image, res)
assert_not_same(@img, res)
end
res = @img.magnify!
assert_same(@img, res)
end
def test_map
map = Magick::Image.read('netscape:').first
assert_nothing_raised do
res = @img.map(map)
assert_instance_of(Magick::Image, res)
assert_not_same(@img, res)
end
assert_nothing_raised { @img.map(map, true) }
assert_raise(NoMethodError) { @img.map(2) }
assert_raise(ArgumentError) { @img.map(map, true, 2) }
assert_raise(ArgumentError) { @img.map }
map.destroy!
assert_raise(Magick::DestroyedImageError) { @img.map(map, true) }
end
def test_marshal
img = Magick::Image.read(IMAGES_DIR+'/Button_0.gif').first
d = nil
img2 = nil
assert_nothing_raised { d = Marshal.dump(img) }
assert_nothing_raised { img2 = Marshal.load(d) }
assert_equal(img, img2)
end
def test_mask
cimg = Magick::Image.new(10,10)
assert_nothing_raised { @img.mask(cimg) }
res = nil
assert_nothing_raised { res = @img.mask }
assert_not_nil(res)
assert_not_same(cimg, res)
assert_equal(20, res.columns)
assert_equal(20, res.rows)
# mask expects an Image and calls `cur_image'
assert_raise(NoMethodError) { @img.mask = 2 }
img = @img.copy.freeze
assert_raise(FreezeError) { img.mask cimg }
@img.destroy!
assert_raise(Magick::DestroyedImageError) { @img.mask cimg }
end
def test_matte_fill_to_border
assert_nothing_raised do
res = @img.matte_fill_to_border(@img.columns/2, @img.rows/2)
assert_instance_of(Magick::Image, res)
assert_not_same(@img, res)
end
assert_nothing_raised { @img.matte_fill_to_border(@img.columns, @img.rows) }
assert_raise(ArgumentError) { @img.matte_fill_to_border(@img.columns+1, @img.rows) }
assert_raise(ArgumentError) { @img.matte_fill_to_border(@img.columns, @img.rows+1) }
end
def test_matte_floodfill
assert_nothing_raised do
res = @img.matte_floodfill(@img.columns/2, @img.rows/2)
assert_instance_of(Magick::Image, res)
assert_not_same(@img, res)
end
assert_nothing_raised { @img.matte_floodfill(@img.columns, @img.rows) }
assert_raise(ArgumentError) { @img.matte_floodfill(@img.columns+1, @img.rows) }
assert_raise(ArgumentError) { @img.matte_floodfill(@img.columns, @img.rows+1) }
end
def test_matte_replace
assert_nothing_raised do
res = @img.matte_replace(@img.columns/2, @img.rows/2)
assert_instance_of(Magick::Image, res)
assert_not_same(@img, res)
end
end
def test_matte_reset!
assert_nothing_raised do
res = @img.matte_reset!
assert_same(@img, res)
end
end
def test_median_filter
assert_nothing_raised do
res = @img.median_filter
assert_instance_of(Magick::Image, res)
assert_not_same(@img, res)
end
assert_nothing_raised { @img.median_filter(0.5) }
assert_raise(ArgumentError) { @img.median_filter(0.5, 'x') }
assert_raise(TypeError) { @img.median_filter('x') }
end
def test_minify
assert_nothing_raised do
res = @img.minify
assert_instance_of(Magick::Image, res)
assert_not_same(@img, res)
end
res = @img.minify!
assert_same(@img, res)
end
def test_modulate
assert_nothing_raised do
res = @img.modulate
assert_instance_of(Magick::Image, res)
assert_not_same(@img, res)
end
assert_nothing_raised { @img.modulate(0.5) }
assert_nothing_raised { @img.modulate(0.5, 0.5) }
assert_nothing_raised { @img.modulate(0.5, 0.5, 0.5) }
assert_raise(ArgumentError) { @img.modulate(0.5, 0.5, 0.5, 0.5) }
assert_raise(TypeError) { @img.modulate('x', 0.5, 0.5) }
assert_raise(TypeError) { @img.modulate(0.5, 'x', 0.5) }
assert_raise(TypeError) { @img.modulate(0.5, 0.5, 'x') }
end
def test_monochrome?
# assert_block { @img.monochrome? }
@img.pixel_color(0,0, 'red')
assert_block { ! @img.monochrome? }
end
def test_motion_blur
assert_nothing_raised do
res = @img.motion_blur(1.0, 7.0, 180)
assert_instance_of(Magick::Image, res)
assert_not_same(@img, res)
end
assert_raise(ArgumentError) { @img.motion_blur(1.0, 0.0, 180) }
assert_nothing_raised { @img.motion_blur(1.0, -1.0, 180) }
end
def test_negate
assert_nothing_raised do
res = @img.negate
assert_instance_of(Magick::Image, res)
assert_not_same(@img, res)
end
assert_nothing_raised { @img.negate(true) }
assert_raise(ArgumentError) { @img.negate(true, 2) }
end
def test_negate_channel
assert_nothing_raised do
res = @img.negate_channel
assert_instance_of(Magick::Image, res)
assert_not_same(@img, res)
end
assert_nothing_raised { @img.negate_channel(true) }
assert_nothing_raised { @img.negate_channel(true, Magick::RedChannel) }
assert_nothing_raised { @img.negate_channel(true, Magick::RedChannel, Magick::BlueChannel) }
assert_raise(TypeError) { @img.negate_channel(true, Magick::RedChannel, 2) }
end
def test_normalize
assert_nothing_raised do
res = @img.normalize
assert_instance_of(Magick::Image, res)
assert_not_same(@img, res)
end
end
def test_normalize_channel
assert_nothing_raised do
res = @img.normalize_channel
assert_instance_of(Magick::Image, res)
assert_not_same(@img, res)
end
assert_nothing_raised { @img.normalize_channel(Magick::RedChannel) }
assert_nothing_raised { @img.normalize_channel(Magick::RedChannel, Magick::BlueChannel) }
assert_raise(TypeError) { @img.normalize_channel(Magick::RedChannel, 2) }
end
def test_oil_paint
assert_nothing_raised do
res = @img.oil_paint
assert_instance_of(Magick::Image, res)
assert_not_same(@img, res)
end
assert_nothing_raised { @img.oil_paint(2.0) }
assert_raise(ArgumentError) { @img.oil_paint(2.0, 1.0) }
end
def test_opaque
assert_nothing_raised do
res = @img.opaque('white', 'red')
assert_instance_of(Magick::Image, res)
assert_not_same(@img, res)
end
red = Magick::Pixel.new(Magick::QuantumRange)
blue = Magick::Pixel.new(0, 0, Magick::QuantumRange)
assert_nothing_raised { @img.opaque(red, blue) }
assert_raise(TypeError) { @img.opaque(red, 2) }
assert_raise(TypeError) { @img.opaque(2, blue) }
end
def test_opaque_channel
res = nil
assert_nothing_raised { res = @img.opaque_channel('white', 'red') }
assert_not_nil(res)
assert_instance_of(Magick::Image, res)
assert_not_same(res, @img)
assert_nothing_raised { @img.opaque_channel('red', 'blue', true) }
assert_nothing_raised { @img.opaque_channel('red', 'blue', true, 50) }
assert_nothing_raised { @img.opaque_channel('red', 'blue', true, 50, Magick::RedChannel) }
assert_nothing_raised { @img.opaque_channel('red', 'blue', true, 50, Magick::RedChannel, Magick::GreenChannel) }
assert_nothing_raised do
@img.opaque_channel('red', 'blue', true, 50, Magick::RedChannel, Magick::GreenChannel, Magick::BlueChannel)
end
assert_raise(TypeError) { @img.opaque_channel('red', 'blue', true, 50, 50) }
assert_raise(TypeError) { @img.opaque_channel('red', 'blue', true, []) }
assert_raise(ArgumentError) { @img.opaque_channel('red') }
assert_raise(TypeError) { @img.opaque_channel('red', []) }
end
def test_opaque?
assert_nothing_raised do
assert_block { @img.opaque? }
end
@img.opacity = Magick::TransparentOpacity
assert_block { ! @img.opaque? }
end
def test_ordered_dither
assert_nothing_raised do
res = @img.ordered_dither
assert_instance_of(Magick::Image, res)
assert_not_same(@img, res)
end
assert_nothing_raised { @img.ordered_dither(2) }
assert_nothing_raised { @img.ordered_dither(3) }
assert_nothing_raised { @img.ordered_dither(4) }
assert_raise(ArgumentError) { @img.ordered_dither(5) }
assert_raise(ArgumentError) { @img.ordered_dither(2, 1) }
end
def test_paint_transparent
res = nil
assert_nothing_raised { res = @img.paint_transparent('red') }
assert_not_nil(res)
assert_instance_of(Magick::Image, res)
assert_not_same(res, @img)
assert_nothing_raised { @img.paint_transparent('red', Magick::TransparentOpacity) }
assert_nothing_raised { @img.paint_transparent('red', Magick::TransparentOpacity, true) }
assert_nothing_raised { @img.paint_transparent('red', Magick::TransparentOpacity, true, 50) }
# Too many arguments
assert_raise(ArgumentError) { @img.paint_transparent('red', Magick::TransparentOpacity, true, 50, 50) }
# Not enough
assert_raise(ArgumentError) { @img.paint_transparent }
assert_raise(TypeError) { @img.paint_transparent('red', Magick::TransparentOpacity, true, []) }
assert_raise(TypeError) { @img.paint_transparent('red', 'blue') }
assert_raise(TypeError) { @img.paint_transparent(50) }
end
def test_palette?
img = Magick::Image.read(IMAGES_DIR+'/Flower_Hat.jpg').first
assert_nothing_raised do
assert_block { !img.palette? }
end
img = Magick::Image.read(IMAGES_DIR+'/Button_0.gif').first
assert_block { img.palette? }
end
def test_pixel_color
assert_nothing_raised do
res = @img.pixel_color(0,0)
assert_instance_of(Magick::Pixel, res)
end
res = @img.pixel_color(0,0)
assert_equal(@img.background_color, res.to_color)
res = @img.pixel_color(0, 0, 'red')
assert_equal('white', res.to_color)
res = @img.pixel_color(0, 0)
assert_equal('red', res.to_color)
blue = Magick::Pixel.new(0, 0, Magick::QuantumRange)
assert_nothing_raised { @img.pixel_color(0,0, blue) }
# If args are out-of-bounds return the background color
img = Magick::Image.new(10, 10) { self.background_color = 'blue' }
assert_equal('blue', img.pixel_color(50, 50).to_color)
end
def test_polaroid
assert_nothing_raised { @img.polaroid }
assert_nothing_raised { @img.polaroid(5) }
assert_instance_of(Magick::Image, @img.polaroid)
assert_raises(TypeError) { @img.polaroid('x') }
end
def test_posterize
assert_nothing_raised do
res = @img.posterize
assert_instance_of(Magick::Image, res)
assert_not_same(@img, res)
end
assert_nothing_raised { @img.posterize(5) }
assert_nothing_raised { @img.posterize(5, true) }
assert_raise(ArgumentError) { @img.posterize(5, true, 'x') }
end
end
if __FILE__ == $PROGRAM_NAME
IMAGES_DIR = '../doc/ex/images'
FILES = Dir[IMAGES_DIR+'/Button_*.gif']
Test::Unit::UI::Console::TestRunner.run(Image2_UT) unless RUBY_VERSION[/^1\.9|^2/]
end