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# -*- encoding: utf-8 -*-
require_relative '../../spec_helper'
require_relative 'fixtures/classes'
describe "String#downcase" do
it "returns a copy of self with all uppercase letters downcased" do
"hELLO".downcase.should == "hello"
"hello".downcase.should == "hello"
end
describe "full Unicode case mapping" do
it "works for all of Unicode with no option" do
"ÄÖÜ".downcase.should == "äöü"
end
it "updates string metadata" do
downcased = "\u{212A}ING".downcase
downcased.should == "king"
downcased.size.should == 4
downcased.bytesize.should == 4
downcased.ascii_only?.should be_true
end
end
describe "ASCII-only case mapping" do
it "does not downcase non-ASCII characters" do
"CÅR".downcase(:ascii).should == "cÅr"
end
end
describe "full Unicode case mapping adapted for Turkic languages" do
it "downcases characters according to Turkic semantics" do
"İ".downcase(:turkic).should == "i"
end
it "allows Lithuanian as an extra option" do
"İ".downcase(:turkic, :lithuanian).should == "i"
end
it "does not allow any other additional option" do
-> { "İ".downcase(:turkic, :ascii) }.should raise_error(ArgumentError)
end
end
describe "full Unicode case mapping adapted for Lithuanian" do
it "currently works the same as full Unicode case mapping" do
"İS".downcase(:lithuanian).should == "i\u{307}s"
end
it "allows Turkic as an extra option (and applies Turkic semantics)" do
"İS".downcase(:lithuanian, :turkic).should == "is"
end
it "does not allow any other additional option" do
-> { "İS".downcase(:lithuanian, :ascii) }.should raise_error(ArgumentError)
end
end
describe "case folding" do
it "case folds special characters" do
"ß".downcase.should == "ß"
"ß".downcase(:fold).should == "ss"
end
end
it "does not allow invalid options" do
-> { "ABC".downcase(:invalid_option) }.should raise_error(ArgumentError)
end
it "taints result when self is tainted" do
"".taint.downcase.tainted?.should == true
"x".taint.downcase.tainted?.should == true
"X".taint.downcase.tainted?.should == true
end
it "returns a subclass instance for subclasses" do
StringSpecs::MyString.new("FOObar").downcase.should be_an_instance_of(StringSpecs::MyString)
end
end
describe "String#downcase!" do
it "modifies self in place" do
a = "HeLlO"
a.downcase!.should equal(a)
a.should == "hello"
end
describe "full Unicode case mapping" do
it "modifies self in place for all of Unicode with no option" do
a = "ÄÖÜ"
a.downcase!
a.should == "äöü"
end
it "updates string metadata" do
downcased = "\u{212A}ING"
downcased.downcase!
downcased.should == "king"
downcased.size.should == 4
downcased.bytesize.should == 4
downcased.ascii_only?.should be_true
end
end
describe "ASCII-only case mapping" do
it "does not downcase non-ASCII characters" do
a = "CÅR"
a.downcase!(:ascii)
a.should == "cÅr"
end
end
describe "full Unicode case mapping adapted for Turkic languages" do
it "downcases characters according to Turkic semantics" do
a = "İ"
a.downcase!(:turkic)
a.should == "i"
end
it "allows Lithuanian as an extra option" do
a = "İ"
a.downcase!(:turkic, :lithuanian)
a.should == "i"
end
it "does not allow any other additional option" do
-> { a = "İ"; a.downcase!(:turkic, :ascii) }.should raise_error(ArgumentError)
end
end
describe "full Unicode case mapping adapted for Lithuanian" do
it "currently works the same as full Unicode case mapping" do
a = "İS"
a.downcase!(:lithuanian)
a.should == "i\u{307}s"
end
it "allows Turkic as an extra option (and applies Turkic semantics)" do
a = "İS"
a.downcase!(:lithuanian, :turkic)
a.should == "is"
end
it "does not allow any other additional option" do
-> { a = "İS"; a.downcase!(:lithuanian, :ascii) }.should raise_error(ArgumentError)
end
end
describe "case folding" do
it "case folds special characters" do
a = "ß"
a.downcase!
a.should == "ß"
a.downcase!(:fold)
a.should == "ss"
end
end
it "does not allow invalid options" do
-> { a = "ABC"; a.downcase!(:invalid_option) }.should raise_error(ArgumentError)
end
it "returns nil if no modifications were made" do
a = "hello"
a.downcase!.should == nil
a.should == "hello"
end
it "raises a #{frozen_error_class} when self is frozen" do
-> { "HeLlo".freeze.downcase! }.should raise_error(frozen_error_class)
-> { "hello".freeze.downcase! }.should raise_error(frozen_error_class)
end
it "sets the result String encoding to the source String encoding" do
"ABC".downcase.encoding.should equal(Encoding::UTF_8)
end
end
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