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a34db218ad
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@61504 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
66 lines
1.9 KiB
Ruby
66 lines
1.9 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#swapcase" do
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it "returns a new string with all uppercase chars from self converted to lowercase and vice versa" do
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"Hello".swapcase.should == "hELLO"
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"cYbEr_PuNk11".swapcase.should == "CyBeR_pUnK11"
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"+++---111222???".swapcase.should == "+++---111222???"
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end
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it "taints resulting string when self is tainted" do
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"".taint.swapcase.tainted?.should == true
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"hello".taint.swapcase.tainted?.should == true
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end
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ruby_version_is ''...'2.4' do
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it "is locale insensitive (only upcases a-z and only downcases A-Z)" do
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"ÄÖÜ".swapcase.should == "ÄÖÜ"
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"ärger".swapcase.should == "äRGER"
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"BÄR".swapcase.should == "bÄr"
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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".swapcase.should == "ÄöÜ"
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end
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end
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it "returns subclass instances when called on a subclass" do
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StringSpecs::MyString.new("").swapcase.should be_an_instance_of(StringSpecs::MyString)
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StringSpecs::MyString.new("hello").swapcase.should be_an_instance_of(StringSpecs::MyString)
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end
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end
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describe "String#swapcase!" do
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it "modifies self in place" do
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a = "cYbEr_PuNk11"
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a.swapcase!.should equal(a)
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a.should == "CyBeR_pUnK11"
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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.swapcase!.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 = "+++---111222???"
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a.swapcase!.should == nil
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a.should == "+++---111222???"
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"".swapcase!.should == nil
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end
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it "raises a #{frozen_error_class} when self is frozen" do
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["", "hello"].each do |a|
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a.freeze
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lambda { a.swapcase! }.should raise_error(frozen_error_class)
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end
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end
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end
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