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23 lines
721 B
Ruby
23 lines
721 B
Ruby
require 'date'
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require_relative '../../spec_helper'
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describe "Date#<<" do
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it "subtracts a number of months from a date" do
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d = Date.civil(2007,2,27) << 10
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d.should == Date.civil(2006, 4, 27)
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end
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it "returns the last day of a month if the day doesn't exist" do
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d = Date.civil(2008,3,31) << 1
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d.should == Date.civil(2008, 2, 29)
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end
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it "raises an error on non numeric parameters" do
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-> { Date.civil(2007,2,27) << :hello }.should raise_error(TypeError)
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-> { Date.civil(2007,2,27) << "hello" }.should raise_error(TypeError)
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-> { Date.civil(2007,2,27) << Date.new }.should raise_error(TypeError)
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-> { Date.civil(2007,2,27) << Object.new }.should raise_error(TypeError)
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end
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end
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