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a34db218ad
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@61504 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
73 lines
2 KiB
Ruby
73 lines
2 KiB
Ruby
# -*- encoding: utf-8 -*-
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require File.expand_path('../../../spec_helper', __FILE__)
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require File.expand_path('../fixtures/classes.rb', __FILE__)
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describe "String#downcase" do
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it "returns a copy of self with all uppercase letters downcased" do
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"hELLO".downcase.should == "hello"
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"hello".downcase.should == "hello"
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end
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ruby_version_is ''...'2.4' do
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it "is locale insensitive (only replaces A-Z)" do
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"ÄÖÜ".downcase.should == "ÄÖÜ"
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str = Array.new(256) { |c| c.chr }.join
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expected = Array.new(256) do |i|
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c = i.chr
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c.between?("A", "Z") ? c.downcase : c
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end.join
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str.downcase.should == expected
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end
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end
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ruby_version_is '2.4' do
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it "works for all of Unicode" do
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"ÄÖÜ".downcase.should == "äöü"
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end
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end
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it "taints result when self is tainted" do
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"".taint.downcase.tainted?.should == true
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"x".taint.downcase.tainted?.should == true
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"X".taint.downcase.tainted?.should == true
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end
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it "returns a subclass instance for subclasses" do
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StringSpecs::MyString.new("FOObar").downcase.should be_an_instance_of(StringSpecs::MyString)
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end
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end
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describe "String#downcase!" do
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it "modifies self in place" do
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a = "HeLlO"
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a.downcase!.should equal(a)
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a.should == "hello"
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end
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ruby_version_is '2.4' do
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it "modifies self in place for all of Unicode" do
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a = "ÄÖÜ"
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a.downcase!.should equal(a)
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a.should == "äöü"
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end
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end
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it "returns nil if no modifications were made" do
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a = "hello"
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a.downcase!.should == nil
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a.should == "hello"
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end
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it "raises a #{frozen_error_class} when self is frozen" do
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lambda { "HeLlo".freeze.downcase! }.should raise_error(frozen_error_class)
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lambda { "hello".freeze.downcase! }.should raise_error(frozen_error_class)
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end
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with_feature :encoding do
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it "sets the result String encoding to the source String encoding" do
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"ABC".downcase.encoding.should equal(Encoding::UTF_8)
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end
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end
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end
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