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require "spec_helper"
describe SafeYAML::Transform::ToFloat do
it "returns true when the value matches a valid Float" do
subject.transform?("20.00").should == [true, 20.0]
end
it "returns false when the value does not match a valid Float" do
subject.transform?("foobar").should be_false
end
it "returns false when the value spans multiple lines" do
subject.transform?("20.00\nNOT A FLOAT").should be_false
end
it "correctly parses all formats in the YAML spec" do
# canonical
subject.transform?("6.8523015e+5").should == [true, 685230.15]
# exponentioal
subject.transform?("685.230_15e+03").should == [true, 685230.15]
# fixed
subject.transform?("685_230.15").should == [true, 685230.15]
# sexagesimal
subject.transform?("190:20:30.15").should == [true, 685230.15]
# infinity
subject.transform?("-.inf").should == [true, (-1.0 / 0.0)]
# not a number
# NOTE: can't use == here since NaN != NaN
success, result = subject.transform?(".NaN")
success.should be_true; result.should be_nan
end
# issue 29
it "returns false for the string '.'" do
subject.transform?(".").should be_false
end
end
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