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Contents
require 'spec_helper'
describe ChunkyPNG::Canvas::Masking do
subject { reference_canvas('clock') }
before(:all) do
@theme_color = ChunkyPNG::Color('#e10f7a')
@new_color = ChunkyPNG::Color('#ff0000')
@background_color = ChunkyPNG::Color('white')
end
describe '#change_theme_color!' do
it "should change the theme color correctly" do
subject.change_theme_color!(@theme_color, @new_color)
expect(subject).to eql reference_canvas('clock_updated')
end
end
describe '#extract_mask' do
it "should create the correct base and mask image" do
base, mask = subject.extract_mask(@theme_color, @background_color)
expect(base).to eql reference_canvas('clock_base')
expect(mask).to eql reference_canvas('clock_mask')
end
it "should create a mask image with only one opaque color" do
base, mask = subject.extract_mask(@theme_color, @background_color)
expect(mask.palette.opaque_palette.size).to eql 1
end
end
describe '#change_mask_color!' do
before { @mask = reference_canvas('clock_mask') }
it "should replace the mask color correctly" do
@mask.change_mask_color!(@new_color)
expect(@mask).to eql reference_canvas('clock_mask_updated')
end
it "should still only have one opaque color" do
@mask.change_mask_color!(@new_color)
expect(@mask.palette.opaque_palette.size).to eql 1
end
it "should raise an exception when the mask image has more than once color" do
not_a_mask = reference_canvas('operations')
expect { not_a_mask.change_mask_color!(@new_color) }.to raise_error(ChunkyPNG::ExpectationFailed)
end
end
end
Version data entries
12 entries across 11 versions & 3 rubygems