1
0
Fork 0
mirror of https://github.com/ruby/ruby.git synced 2022-11-09 12:17:21 -05:00
ruby--ruby/spec/ruby/core/symbol/comparison_spec.rb
eregon 401b64c4e8 Update to ruby/spec@c1b568b
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@62656 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2018-03-04 15:09:32 +00:00

51 lines
1.3 KiB
Ruby

require_relative '../../spec_helper'
describe "Symbol#<=> with Symbol" do
it "compares individual characters based on their ascii value" do
ascii_order = Array.new(256) { |x| x.chr.to_sym }
sort_order = ascii_order.sort
sort_order.should == ascii_order
end
it "returns -1 when self is less than other" do
(:this <=> :those).should == -1
end
it "returns 0 when self is equal to other" do
(:yep <=> :yep).should == 0
end
it "returns 1 when self is greater than other" do
(:yoddle <=> :griddle).should == 1
end
it "considers symbol that comes lexicographically first to be less if the symbols have same size" do
(:aba <=> :abc).should == -1
(:abc <=> :aba).should == 1
end
it "doesn't consider shorter string to be less if longer string starts with shorter one" do
(:abc <=> :abcd).should == -1
(:abcd <=> :abc).should == 1
end
it "compares shorter string with corresponding number of first chars of longer string" do
(:abx <=> :abcd).should == 1
(:abcd <=> :abx).should == -1
end
end
describe "Symbol#<=>" do
it "returns nil if other is a String" do
(:abc <=> "abc").should be_nil
end
it "returns nil if other is a Fixnum" do
(:abc <=> 1).should be_nil
end
it "returns nil if other is an object" do
obj = mock("string <=>")
(:abc <=> obj).should be_nil
end
end