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Contents
describe "d3 - threshold scale" do
let(:color) { D3.scale_threshold.domain([0, 1]).range(["red", "white", "green"]) }
it "d3.scale_threshold" do
expect(D3.scale_threshold).to be_instance_of(D3::ThresholdScale)
end
it "basics" do
expect(color.(-1)).to eq("red")
expect(color.(0)).to eq("white")
expect(color.(0.5)).to eq("white")
expect(color.(1)).to eq("green")
expect(color.(1000)).to eq("green")
end
it "invert_extent" do
expect(color.invert_extent("red")).to eq([nil, 0])
expect(color.invert_extent("white")).to eq([0, 1])
expect(color.invert_extent("green")).to eq([1, nil])
end
it "copy" do
cc = color.copy.domain([0,10])
expect(cc.domain).to eq([0,10])
expect(cc.range).to eq(["red", "white", "green"])
expect(color.domain).to eq([0,1])
expect(color.range).to eq(["red", "white", "green"])
end
end
Version data entries
8 entries across 8 versions & 2 rubygems