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401b64c4e8
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@62656 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
36 lines
1.1 KiB
Ruby
36 lines
1.1 KiB
Ruby
require_relative '../../spec_helper'
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describe "Float#<=>" do
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it "returns -1, 0, 1 when self is less than, equal, or greater than other" do
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(1.5 <=> 5).should == -1
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(2.45 <=> 2.45).should == 0
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((bignum_value*1.1) <=> bignum_value).should == 1
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end
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it "returns nil when either argument is NaN" do
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(nan_value <=> 71.2).should be_nil
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(1771.176 <=> nan_value).should be_nil
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end
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it "returns nil when the given argument is not a Float" do
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(1.0 <=> "1").should be_nil
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end
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# The 4 tests below are taken from matz's revision 23730 for Ruby trunk
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#
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it "returns 1 when self is Infinity and other is a Bignum" do
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(infinity_value <=> Float::MAX.to_i*2).should == 1
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end
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it "returns -1 when self is negative and other is Infinty" do
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(-Float::MAX.to_i*2 <=> infinity_value).should == -1
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end
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it "returns -1 when self is -Infinity and other is negative" do
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(-infinity_value <=> -Float::MAX.to_i*2).should == -1
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end
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it "returns 1 when self is negative and other is -Infinity" do
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(-Float::MAX.to_i*2 <=> -infinity_value).should == 1
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end
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end
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