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require File.expand_path('../../../spec_helper', __FILE__)
describe "Float#infinite?" do
it "returns nil for finite values" do
1.0.infinite?.should == nil
end
it "returns 1 for positive infinity" do
infinity_value.infinite?.should == 1
end
it "returns -1 for negative infinity" do
(-infinity_value).infinite?.should == -1
end
it "returns nil for NaN" do
nan_value.infinite?.should == nil
end
end
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