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104 lines
4.3 KiB
104 lines
4.3 KiB
require 'spec_helper' |
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require 'squib/graphics/cairo_context_wrapper' |
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describe Squib::Graphics::CairoContextWrapper do |
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let(:cairo) { double(Cairo::Context) } |
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subject { Squib::Graphics::CairoContextWrapper.new(cairo) } |
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context '#set_source_squibcolor' do |
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it 'passes on colors as normal' do |
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expect(cairo).to receive(:set_source_color).with('blue') |
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subject.set_source_squibcolor('blue') |
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end |
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it 'passes on color symbols as normal' do |
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expect(cairo).to receive(:set_source_color).with(:blue) |
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subject.set_source_squibcolor(:blue) |
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end |
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it 'passes on color hashes' do |
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expect(cairo).to receive(:set_source_color) |
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.with('#aabbccdd') |
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subject.set_source_squibcolor('#aabbccdd') |
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end |
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it 'raises on nil' do |
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expect { subject.set_source_squibcolor(nil) }.to raise_error('nil is not a valid color') |
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end |
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context 'regex variations for linear gradients' do |
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before(:each) do |
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dbl = double(Cairo::LinearPattern) |
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mtx = double(Cairo::Matrix) |
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expect(Cairo::LinearPattern).to receive(:new).with(1, 2, 3, 4).and_return(dbl) |
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expect(dbl).to receive(:add_color_stop).with(0.0, 'blue') |
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expect(dbl).to receive(:add_color_stop).with(1.0, 'red') |
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expect(cairo).to receive(:matrix).and_return(mtx) |
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expect(dbl).to receive(:matrix=).with(mtx) |
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expect(cairo).to receive(:set_source).with(dbl) |
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end |
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it('handles no decimals') { subject.set_source_squibcolor('(1,2) (3,4) blue@0 red@1') } |
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it('handles decimals') { subject.set_source_squibcolor('(1.0,2.0) (3.0,4.0) blue@0 red@1') } |
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it('handles no whitespace') { subject.set_source_squibcolor('(1,2)(3,4)blue@0red@1') } |
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it('handles whitespace') { subject.set_source_squibcolor(' ( 1 , 2 ) ( 3 , 4 ) blue@0 red@1 ') } |
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end |
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context 'regex variations for radial gradients' do |
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before(:each) do |
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dbl = double(Cairo::RadialPattern) |
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mtx = double(Cairo::Matrix) |
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expect(Cairo::RadialPattern).to receive(:new).with(1, 2, 5, 3, 4, 6).and_return(dbl) |
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expect(dbl).to receive(:add_color_stop).with(0.0, 'blue') |
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expect(dbl).to receive(:add_color_stop).with(1.0, 'red') |
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expect(cairo).to receive(:matrix).and_return(mtx) |
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expect(dbl).to receive(:matrix=).with(mtx) |
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expect(cairo).to receive(:set_source).with(dbl) |
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end |
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it('handles no decimals') { subject.set_source_squibcolor('(1,2,5) (3,4,6) blue@0 red@1') } |
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it('handles decimals') { subject.set_source_squibcolor('(1.0,2.0,5.0) (3.0,4.0,6.0) blue@0 red@1') } |
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it('handles no whitespace') { subject.set_source_squibcolor('(1,2,5)(3,4,6)blue@0red@1') } |
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it('handles whitespace') { subject.set_source_squibcolor(' ( 1 , 2 , 5 ) ( 3 , 4 , 6 ) blue@0 red@1 ') } |
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end |
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context 'regex handles hash notation' do |
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it 'on radial patterns' do |
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dbl = double(Cairo::RadialPattern) |
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mtx = double(Cairo::Matrix) |
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expect(Cairo::RadialPattern).to receive(:new).with(1, 2, 5, 3, 4, 6).and_return(dbl) |
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expect(dbl).to receive(:add_color_stop).with(0.0, '#def') |
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expect(dbl).to receive(:add_color_stop).with(1.0, '#112233') |
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expect(cairo).to receive(:matrix).and_return(mtx) |
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expect(dbl).to receive(:matrix=).with(mtx) |
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expect(cairo).to receive(:set_source).with(dbl) |
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subject.set_source_squibcolor('(1,2,5) (3,4,6) #def@0 #112233@1') |
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end |
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it 'on linear patterns' do |
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dbl = double(Cairo::LinearPattern) |
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mtx = double(Cairo::Matrix) |
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expect(Cairo::LinearPattern).to receive(:new).with(1, 2, 3, 4).and_return(dbl) |
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expect(dbl).to receive(:add_color_stop).with(0.0, '#def') |
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expect(dbl).to receive(:add_color_stop).with(1.0, '#112233') |
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expect(cairo).to receive(:matrix).and_return(mtx) |
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expect(dbl).to receive(:matrix=).with(mtx) |
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expect(cairo).to receive(:set_source).with(dbl) |
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subject.set_source_squibcolor('(1,2) (3,4) #def@0 #112233@1') |
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end |
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end |
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end |
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context '#flip' do |
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it 'in the basic case' do |
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dbl = double(Cairo::Matrix) |
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expect(Cairo::Matrix).to receive(:new).with(-1.0, 0.0, 0.0, -1.0, 6.0, 8.0).and_return(dbl) |
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expect(cairo).to receive(:transform).with(dbl) |
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subject.flip(true, true, 3.0, 4.0) |
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end |
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end |
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end
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