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# -*- encoding: utf-8 -*-
require File.expand_path('../../../spec_helper', __FILE__)
require File.expand_path('../fixtures/classes.rb', __FILE__)
describe "String#capitalize" do
it "returns a copy of self with the first character converted to uppercase and the remainder to lowercase" do
"".capitalize.should == ""
"h".capitalize.should == "H"
"H".capitalize.should == "H"
"hello".capitalize.should == "Hello"
"HELLO".capitalize.should == "Hello"
"123ABC".capitalize.should == "123abc"
end
it "taints resulting string when self is tainted" do
"".taint.capitalize.tainted?.should == true
"hello".taint.capitalize.tainted?.should == true
end
ruby_version_is ''...'2.4' do
it "is locale insensitive (only upcases a-z and only downcases A-Z)" do
"ÄÖÜ".capitalize.should == "ÄÖÜ"
"ärger".capitalize.should == "ärger"
"BÄR".capitalize.should == "BÄr"
end
end
ruby_version_is '2.4' do
it "works for all of Unicode" do
"äöü".capitalize.should == "Äöü"
end
end
it "returns subclass instances when called on a subclass" do
StringSpecs::MyString.new("hello").capitalize.should be_an_instance_of(StringSpecs::MyString)
StringSpecs::MyString.new("Hello").capitalize.should be_an_instance_of(StringSpecs::MyString)
end
end
describe "String#capitalize!" do
it "capitalizes self in place" do
a = "hello"
a.capitalize!.should equal(a)
a.should == "Hello"
end
it "returns nil when no changes are made" do
a = "Hello"
a.capitalize!.should == nil
a.should == "Hello"
"".capitalize!.should == nil
"H".capitalize!.should == nil
end
it "raises a RuntimeError when self is frozen" do
["", "Hello", "hello"].each do |a|
a.freeze
lambda { a.capitalize! }.should raise_error(RuntimeError)
end
end
end
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