mirror of
https://github.com/ruby/ruby.git
synced 2022-11-09 12:17:21 -05:00
37 lines
1.1 KiB
Ruby
37 lines
1.1 KiB
Ruby
|
require File.expand_path('../../../spec_helper', __FILE__)
|
||
|
|
|
||
|
|
describe "Float#<=>" do
|
||
|
|
it "returns -1, 0, 1 when self is less than, equal, or greater than other" do
|
||
|
|
(1.5 <=> 5).should == -1
|
||
|
|
(2.45 <=> 2.45).should == 0
|
||
|
|
((bignum_value*1.1) <=> bignum_value).should == 1
|
||
|
|
end
|
||
|
|
|
||
|
|
it "returns nil when either argument is NaN" do
|
||
|
|
(nan_value <=> 71.2).should be_nil
|
||
|
|
(1771.176 <=> nan_value).should be_nil
|
||
|
|
end
|
||
|
|
|
||
|
|
it "returns nil when the given argument is not a Float" do
|
||
|
|
(1.0 <=> "1").should be_nil
|
||
|
|
end
|
||
|
|
|
||
|
|
# The 4 tests below are taken from matz's revision 23730 for Ruby trunk
|
||
|
|
#
|
||
|
|
it "returns 1 when self is Infinity and other is a Bignum" do
|
||
|
|
(infinity_value <=> Float::MAX.to_i*2).should == 1
|
||
|
|
end
|
||
|
|
|
||
|
|
it "returns -1 when self is negative and other is Infinty" do
|
||
|
|
(-Float::MAX.to_i*2 <=> infinity_value).should == -1
|
||
|
|
end
|
||
|
|
|
||
|
|
it "returns -1 when self is -Infinity and other is negative" do
|
||
|
|
(-infinity_value <=> -Float::MAX.to_i*2).should == -1
|
||
|
|
end
|
||
|
|
|
||
|
|
it "returns 1 when self is negative and other is -Infinity" do
|
||
|
|
(-Float::MAX.to_i*2 <=> -infinity_value).should == 1
|
||
|
|
end
|
||
|
|
end
|