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color_spec.rb
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color_spec.rb
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require File.expand_path(File.join(File.dirname(__FILE__),'spec_helper'))
describe RGhost::Color do
context "color factory" do
#String HTML color converter
# Color.create '#FFAA33'
#As Symbol will be find in RGhost::Constants::Colors::RGB
# Color.create :red
#As Array with 3 elements
# Color.create [0.5, 0.3, 0.5]
#Hash with 3 pair of key/value. Valids keys :red, :green and :blue
# Color.create :red => 0.5, :green => 0.3, :blue => 0.5
#Hash with 3 pair of key/value. Valids keys :r, :g and :b
# Color.create :r => 0.5, :g => 0.3, :b => 0.5
#====Creating CMYK color
#Hash with 4 pair of key/value. Valids keys :cyan, :magenta, :yellow and :black
# Color.create :cyan=> 1 ,:magenta => 0.3, :yellow => 0, :black => 0
#Hash with 4 pair of key/value. Valids keys :c, :m, :y and :b
# Color.create :c=> 1 ,:m => 0.3, :y => 0, :b => 0
#====Creating CMYK Spot color
#Hash with 5 pair of key/value. Valids keys :cyan, :magenta, :yellow, :black, and :name
# Color.create :cyan=> 0, :magenta => 100, :yellow => 63, :black => 12, :name => 'Pantone 200 C'
#====Creating Gray color
#A single Numeric
# Color.create 0.5
#50 percent of black will be divided by 100.0
# Color.create 50
it "should create RGB color for hex color(html style)" do
c = RGhost::Color.create "#FF00FF"
c.class == RGhost::RGB
c.ps.to_s.should == "1.0 0.0 1.0 setrgbcolor"
end
it "should create RGB color by color name" do
c = RGhost::Color.create :red
c.class == RGhost::RGB
c.ps.to_s.should == "1.0 0.0 0.0 setrgbcolor"
end
it "should create RGB color by array, 3 elements" do
c = RGhost::Color.create [1,0,1]
c.class == RGhost::RGB
c.ps.to_s.should == "1 0 1 setrgbcolor"
end
it "should create color with hash and RGB color names" do
c = RGhost::Color.create :red => 0.5, :green => 0.7, :blue => 1
c.class == RGhost::RGB
c.ps.to_s.should == "0.5 0.7 1 setrgbcolor"
end
it "should create color with hash and RGB short color names " do
c = RGhost::RGB.new :r => 0.5, :g => 0.7, :b => 1
c.class == RGhost::RGB
c.ps.to_s.should == "0.5 0.7 1 setrgbcolor"
end
it "should create a color by hash" do
c = RGhost::Color.create :cyan=> 1 ,:magenta => 0.3, :yellow => 0, :black => 1
c.class == RGhost::CMYK
c.ps.to_s.should == "1 0.3 0 1 setcmykcolor"
end
it "should create a color by hash with short names" do
c = RGhost::Color.create :c=> 1 ,:m => 0.3, :y => 0, :k => 1
c.class == RGhost::CMYK
c.ps.to_s.should == "1 0.3 0 1 setcmykcolor"
end
it "should create a color by hash with short names" do
c = RGhost::Color.create [1 ,0.3,0,1]
c.class == RGhost::CMYK
c.ps.to_s.should == "1 0.3 0 1 setcmykcolor"
end
it "should create a color by a numeric" do
c = RGhost::Color.create 0.5
c.class == RGhost::Gray
c.ps.to_s.should == "0.5 setgray"
end
end
context RGhost::Gray do
it "should create gray scale" do
c = RGhost::Gray.new 1
c.ps.to_s.should == "1 setgray"
c = RGhost::Gray.new 0.5
c.ps.to_s.should == "0.5 setgray"
end
it "should create gray scale using percentage" do
c = RGhost::Gray.new 100
c.ps.to_s.should == "1.0 setgray"
c = RGhost::Gray.new 50
c.ps.to_s.should == "0.5 setgray"
end
end
context RGhost::CMYK do
it "should create a color using default values" do
c = RGhost::CMYK.new
c.ps.to_s.should == "1 0 0 0 setcmykcolor"
end
it "should create a color by hash" do
c = RGhost::CMYK.new :cyan=> 1 ,:magenta => 0.3, :yellow => 0, :black => 1
c.ps.to_s.should == "1 0.3 0 1 setcmykcolor"
end
it "should create a color by hash with short names" do
c = RGhost::CMYK.new :c=> 1 ,:m => 0.3, :y => 0, :k => 1
c.ps.to_s.should == "1 0.3 0 1 setcmykcolor"
end
it "should create a color by array with 4 elements" do
c = RGhost::CMYK.new [1 ,0.3,0,1]
c.ps.to_s.should == "1 0.3 0 1 setcmykcolor"
end
end
context RGhost::RGB do
it "should create a color from a hex(html style)" do
c = RGhost::RGB.new "#ABBACA"
c.ps.to_s.should == "0.6705882352941176 0.7294117647058823 0.792156862745098 setrgbcolor"
c = RGhost::RGB.new "#FFFFFF"
c.ps.to_s.should == "1.0 1.0 1.0 setrgbcolor"
c = RGhost::RGB.new "#000000"
c.ps.to_s.should == "0.0 0.0 0.0 setrgbcolor"
c = RGhost::RGB.new "#FF0000"
c.ps.to_s.should == "1.0 0.0 0.0 setrgbcolor"
c = RGhost::RGB.new "#FFFF00"
c.ps.to_s.should == "1.0 1.0 0.0 setrgbcolor"
c = RGhost::RGB.new "#334455"
c.ps.to_s.should == "0.2 0.26666666666666666 0.3333333333333333 setrgbcolor"
end
#it "should create a color from a name defined at RGhost::Constants::Colors::RGB" do
it "should create a color from a array with 3 elements" do
c = RGhost::RGB.new [0,0,0]
c.ps.to_s.should == "0 0 0 setrgbcolor"
c = RGhost::RGB.new [1,1,1]
c.ps.to_s.should == "1 1 1 setrgbcolor"
c = RGhost::RGB.new [0.5,0.5,0.5]
c.ps.to_s.should == "0.5 0.5 0.5 setrgbcolor"
end
it "should truncate values greater than 1" do
c = RGhost::RGB.new [2,2,2]
c.ps.to_s.should == "0.02 0.02 0.02 setrgbcolor"
end
it "should create color with hash and RGB color names" do
c = RGhost::RGB.new :red => 0.5, :green => 0.7, :blue => 1
c.ps.to_s.should == "0.5 0.7 1 setrgbcolor"
end
it "should create color with hash and RGB short color names " do
c = RGhost::RGB.new :r => 0.5, :g => 0.7, :b => 1
c.ps.to_s.should == "0.5 0.7 1 setrgbcolor"
end
end
end