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require File.expand_path(File.dirname(__FILE__)+"/spec_helper.rb")
describe Rubyvis::Scale::Ordinal do
if Rubyvis::JohnsonLoader.available?
context "direct protovis API comparison" do
before(:all) do
@rt= Rubyvis::JohnsonLoader.new("/data/OrdinalScale.js").runtime
end
before do
@base = %w{a b c d e f}
@range = %w{black red white orange yellow blue}
@n=rand(3)+3
@base=@base[0,@n]
@range=@range[0,@n]
@y = Rubyvis.Scale.ordinal(@base).range(@range)
@rt[:domain] = @base
@rt[:range] = @range
@y_js=@rt.evaluate("y=pv.Scale.ordinal(domain).range(range)")
end
it "domain() implemented equally" do
@y.domain(@base[0])
@rt.evaluate("y.domain(domain[0])")
@y.domain.should==@rt.evaluate("y.domain()").to_a
@y.domain(@base[0],@base[1])
@rt.evaluate("y.domain(domain[0],domain[1])")
@y.domain.should==@rt.evaluate("y.domain()").to_a
end
end
end
describe "on ruby domain" do
it "should be created as Javascript" do
lambda {y = Rubyvis.Scale.ordinal(%w{a b c}).range(%w{red blue black})}.should_not raise_exception
end
before do
@domain=%w{a b c}
@range=%w{red white blue}
@y = Rubyvis.Scale.ordinal(@domain).range(@range)
end
it "y should be a Scale::Ordinal" do
@y.should be_a(Rubyvis::Scale::Ordinal)
end
it "should respond to domain" do
@y.domain.should==%w{a b c}
@y.domain(%w{a})
@y.domain.should==%w{a}
@y.domain(1,100,300)
@y.domain.should==[1,100,300]
end
it "should respond to range" do
@y.range.should==@range.map {|c| pv.color(c)}
@y.range('red')
@y.range.should==[pv.color('red')]
@y.range('black','white')
@y.range.should==[pv.color('black'), pv.color('white')]
end
it "should returns correct scale with unknown values" do
@y.scale(1).should==pv.color('red')
@y.scale('x').should==pv.color('white')
@y.scale(9).should==pv.color('blue')
@y.scale(1).should==pv.color('red')
end
it "should return the same using [] and scale()" do
a=rand()
@y[a].should==@y.scale(a)
end
it "should returns correct scale with known values" do
@y.scale('a').should==pv.color('red')
@y.scale('b').should==pv.color('white')
@y.scale('c').should==pv.color('blue')
end
it "should return correct by" do
@y = Rubyvis.Scale.ordinal(@domain).range(@range).by(lambda {|v| v.nombre})
a=OpenStruct.new({:nombre=>'c'})
b=OpenStruct.new({:nombre=>'b'})
c=OpenStruct.new({:nombre=>'a'})
@y.call(a).should==pv.color('blue')
@y.call(b).should==pv.color('white')
@y.call(c).should==pv.color('red')
end
end
end
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