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require File.expand_path(File.dirname(__FILE__)+"/spec_helper.rb")
describe Rubyvis::Layout::Horizon do
include Rubyvis::LayoutSpec
it "should have correct properties" do
props=[:antialias, :background_style, :bands, :bottom, :canvas, :cursor, :data, :events, :fill_style, :height, :id, :left, :line_width, :mode, :negative_style, :overflow, :positive_style, :reverse, :right, :stroke_style, :title, :top, :transform, :visible, :width].inject({}) {|ac, v| ac[v]=true; ac}
Rubyvis::Layout::Horizon.properties.should==props
end
it "should be called using Rubyvis.Layout.Horizon" do
Rubyvis.Layout.Horizon.should eql Rubyvis::Layout::Horizon
end
describe "rendered" do
before do
@data = Rubyvis.range(-5, 5, 0.1).map {|d|
OpenStruct.new({:x=> d , :y=> d**2-10});
}
w = 400
h = 100
x = Rubyvis::Scale.linear(@data, lambda {|d| d.x}).range(0, w)
y = Rubyvis::Scale.linear(@data, lambda {|d| d.y}).range(-50, h*2);
#/* The root panel. */
@vis = pv.Panel.new().width(w).height(h*2+20).bottom(20).left(20).right(10).top(5)
@pan = @vis.add(Rubyvis::Panel).
height(80).
top(30)
@pan.add(Rubyvis::Layout::Horizon).
bands(3).
band.add(Rubyvis::Area).
data(@data).
left(lambda {|d| x[d.x]}).
height(lambda {|d| y[d.y]})
@vis.render
html_out=fixture_svg_read("layout_horizon.svg")
@rv_svg=Nokogiri::XML(@vis.to_svg)
@pv_svg=Nokogiri::XML(html_out)
end
it "should render correct number of clipaths" do
@rv_svg.xpath("//xmlns:clipPath[@id]").size.should eq @pv_svg.xpath("//clippath[@id]").size
end
it "should render equal paths" do
pv_paths=@pv_svg.xpath("//path")
@rv_svg.xpath("//xmlns:path").each_with_index {|rv_path,i|
rv_path.should have_path_data_close_to pv_paths[i]['d']
rv_path['fill'].should eq pv_paths[i]['fill']
}
end
end
end
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