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# -*- encoding: utf-8 -*-
require_relative '../../spec_helper'
require_relative 'fixtures/classes'
describe "String#chop" do
it "removes the final character" do
"abc".chop.should == "ab"
end
it "removes the final carriage return" do
"abc\r".chop.should == "abc"
end
it "removes the final newline" do
"abc\n".chop.should == "abc"
end
it "removes the final carriage return, newline" do
"abc\r\n".chop.should == "abc"
end
it "removes the carriage return, newline if they are the only characters" do
"\r\n".chop.should == ""
end
it "does not remove more than the final carriage return, newline" do
"abc\r\n\r\n".chop.should == "abc\r\n"
end
it "removes a multi-byte character" do
"あれ".chop.should == "あ"
end
it "removes the final carriage return, newline from a multibyte String" do
"あれ\r\n".chop.should == "あれ"
end
it "removes the final carriage return, newline from a non-ASCII String" do
str = "abc\r\n".encode "utf-32be"
str.chop.should == "abc".encode("utf-32be")
end
it "returns an empty string when applied to an empty string" do
"".chop.should == ""
end
it "returns a new string when applied to an empty string" do
s = ""
s.chop.should_not equal(s)
end
ruby_version_is ''...'2.7' do
it "taints result when self is tainted" do
"hello".taint.chop.should.tainted?
"".taint.chop.should.tainted?
end
it "untrusts result when self is untrusted" do
"hello".untrust.chop.should.untrusted?
"".untrust.chop.should.untrusted?
end
end
it "returns subclass instances when called on a subclass" do
StringSpecs::MyString.new("hello\n").chop.should be_an_instance_of(StringSpecs::MyString)
end
end
describe "String#chop!" do
it "removes the final character" do
"abc".chop!.should == "ab"
end
it "removes the final carriage return" do
"abc\r".chop!.should == "abc"
end
it "removes the final newline" do
"abc\n".chop!.should == "abc"
end
it "removes the final carriage return, newline" do
"abc\r\n".chop!.should == "abc"
end
it "removes the carriage return, newline if they are the only characters" do
"\r\n".chop!.should == ""
end
it "does not remove more than the final carriage return, newline" do
"abc\r\n\r\n".chop!.should == "abc\r\n"
end
it "removes a multi-byte character" do
"あれ".chop!.should == "あ"
end
it "removes the final carriage return, newline from a multibyte String" do
"あれ\r\n".chop!.should == "あれ"
end
it "removes the final carriage return, newline from a non-ASCII String" do
str = "abc\r\n".encode "utf-32be"
str.chop!.should == "abc".encode("utf-32be")
end
it "returns self if modifications were made" do
str = "hello"
str.chop!.should equal(str)
end
it "returns nil when called on an empty string" do
"".chop!.should be_nil
end
it "raises a FrozenError on a frozen instance that is modified" do
-> { "string\n\r".freeze.chop! }.should raise_error(FrozenError)
end
# see [ruby-core:23666]
it "raises a FrozenError on a frozen instance that would not be modified" do
a = ""
a.freeze
-> { a.chop! }.should raise_error(FrozenError)
end
end
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