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# -*- encoding: utf-8 -*-
require_relative '../../spec_helper'
describe "Symbol#casecmp with Symbol" do
it "compares symbols without regard to case" do
:abcdef.casecmp(:abcde).should == 1
:aBcDeF.casecmp(:abcdef).should == 0
:abcdef.casecmp(:abcdefg).should == -1
:abcdef.casecmp(:ABCDEF).should == 0
end
it "doesn't consider non-ascii characters equal that aren't" do
# -- Latin-1 --
upper_a_tilde = "\xC3".b.to_sym
upper_a_umlaut = "\xC4".b.to_sym
lower_a_tilde = "\xE3".b.to_sym
lower_a_umlaut = "\xE4".b.to_sym
lower_a_tilde.casecmp(lower_a_umlaut).should_not == 0
lower_a_umlaut.casecmp(lower_a_tilde).should_not == 0
upper_a_tilde.casecmp(upper_a_umlaut).should_not == 0
upper_a_umlaut.casecmp(upper_a_tilde).should_not == 0
# -- UTF-8 --
upper_a_tilde = :"Ã"
lower_a_tilde = :"ã"
upper_a_umlaut = :"Ä"
lower_a_umlaut = :"ä"
lower_a_tilde.casecmp(lower_a_umlaut).should_not == 0
lower_a_umlaut.casecmp(lower_a_tilde).should_not == 0
upper_a_tilde.casecmp(upper_a_umlaut).should_not == 0
upper_a_umlaut.casecmp(upper_a_tilde).should_not == 0
end
it "doesn't do case mapping for non-ascii characters" do
# -- Latin-1 --
upper_a_tilde = "\xC3".b.to_sym
upper_a_umlaut = "\xC4".b.to_sym
lower_a_tilde = "\xE3".b.to_sym
lower_a_umlaut = "\xE4".b.to_sym
upper_a_tilde.casecmp(lower_a_tilde).should == -1
upper_a_umlaut.casecmp(lower_a_umlaut).should == -1
lower_a_tilde.casecmp(upper_a_tilde).should == 1
lower_a_umlaut.casecmp(upper_a_umlaut).should == 1
# -- UTF-8 --
upper_a_tilde = :"Ã"
lower_a_tilde = :"ã"
upper_a_umlaut = :"Ä"
lower_a_umlaut = :"ä"
upper_a_tilde.casecmp(lower_a_tilde).should == -1
upper_a_umlaut.casecmp(lower_a_umlaut).should == -1
lower_a_tilde.casecmp(upper_a_tilde).should == 1
lower_a_umlaut.casecmp(upper_a_umlaut).should == 1
end
end
describe "Symbol#casecmp" do
it "returns nil if other is a String" do
:abc.casecmp("abc").should be_nil
end
it "returns nil if other is an Integer" do
:abc.casecmp(1).should be_nil
end
it "returns nil if other is an object" do
obj = mock("string <=>")
:abc.casecmp(obj).should be_nil
end
end
describe 'Symbol#casecmp?' do
it "compares symbols without regard to case" do
:abcdef.casecmp?(:abcde).should == false
:aBcDeF.casecmp?(:abcdef).should == true
:abcdef.casecmp?(:abcdefg).should == false
:abcdef.casecmp?(:ABCDEF).should == true
end
it "doesn't consider non-ascii characters equal that aren't" do
# -- Latin-1 --
upper_a_tilde = "\xC3".b.to_sym
upper_a_umlaut = "\xC4".b.to_sym
lower_a_tilde = "\xE3".b.to_sym
lower_a_umlaut = "\xE4".b.to_sym
lower_a_tilde.casecmp?(lower_a_umlaut).should_not == true
lower_a_umlaut.casecmp?(lower_a_tilde).should_not == true
upper_a_tilde.casecmp?(upper_a_umlaut).should_not == true
upper_a_umlaut.casecmp?(upper_a_tilde).should_not == true
# -- UTF-8 --
upper_a_tilde = :"Ã"
lower_a_tilde = :"ã"
upper_a_umlaut = :"Ä"
lower_a_umlaut = :"ä"
lower_a_tilde.casecmp?(lower_a_umlaut).should_not == true
lower_a_umlaut.casecmp?(lower_a_tilde).should_not == true
upper_a_tilde.casecmp?(upper_a_umlaut).should_not == true
upper_a_umlaut.casecmp?(upper_a_tilde).should_not == true
end
it "doesn't do case mapping for non-ascii and non-unicode characters" do
# -- Latin-1 --
upper_a_tilde = "\xC3".b.to_sym
upper_a_umlaut = "\xC4".b.to_sym
lower_a_tilde = "\xE3".b.to_sym
lower_a_umlaut = "\xE4".b.to_sym
upper_a_tilde.casecmp?(lower_a_tilde).should == false
upper_a_umlaut.casecmp?(lower_a_umlaut).should == false
lower_a_tilde.casecmp?(upper_a_tilde).should == false
lower_a_umlaut.casecmp?(upper_a_umlaut).should == false
end
it 'does case mapping for unicode characters' do
# -- UTF-8 --
upper_a_tilde = :"Ã"
lower_a_tilde = :"ã"
upper_a_umlaut = :"Ä"
lower_a_umlaut = :"ä"
upper_a_tilde.casecmp?(lower_a_tilde).should == true
upper_a_umlaut.casecmp?(lower_a_umlaut).should == true
lower_a_tilde.casecmp?(upper_a_tilde).should == true
lower_a_umlaut.casecmp?(upper_a_umlaut).should == true
end
it 'returns nil when comparing characters with different encodings' do
# -- Latin-1 --
upper_a_tilde = "\xC3".b.to_sym
# -- UTF-8 --
lower_a_tilde = :"ã"
upper_a_tilde.casecmp?(lower_a_tilde).should == nil
lower_a_tilde.casecmp?(upper_a_tilde).should == nil
end
end
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