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122 lines
3.1 KiB
Ruby
122 lines
3.1 KiB
Ruby
# -*- encoding: utf-8 -*-
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require_relative '../../spec_helper'
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require_relative 'fixtures/classes'
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describe "String#chop" do
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it "removes the final character" do
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"abc".chop.should == "ab"
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end
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it "removes the final carriage return" do
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"abc\r".chop.should == "abc"
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end
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it "removes the final newline" do
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"abc\n".chop.should == "abc"
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end
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it "removes the final carriage return, newline" do
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"abc\r\n".chop.should == "abc"
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end
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it "removes the carriage return, newline if they are the only characters" do
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"\r\n".chop.should == ""
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end
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it "does not remove more than the final carriage return, newline" do
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"abc\r\n\r\n".chop.should == "abc\r\n"
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end
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it "removes a multi-byte character" do
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"あれ".chop.should == "あ"
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end
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it "removes the final carriage return, newline from a multibyte String" do
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"あれ\r\n".chop.should == "あれ"
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end
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it "removes the final carriage return, newline from a non-ASCII String" do
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str = "abc\r\n".encode "utf-32be"
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str.chop.should == "abc".encode("utf-32be")
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end
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it "returns an empty string when applied to an empty string" do
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"".chop.should == ""
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end
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it "returns a new string when applied to an empty string" do
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s = ""
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s.chop.should_not equal(s)
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end
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ruby_version_is ''...'3.0' do
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it "returns subclass instances when called on a subclass" do
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StringSpecs::MyString.new("hello\n").chop.should be_an_instance_of(StringSpecs::MyString)
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end
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end
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ruby_version_is '3.0' do
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it "returns String instances when called on a subclass" do
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StringSpecs::MyString.new("hello\n").chop.should be_an_instance_of(String)
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end
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end
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end
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describe "String#chop!" do
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it "removes the final character" do
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"abc".chop!.should == "ab"
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end
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it "removes the final carriage return" do
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"abc\r".chop!.should == "abc"
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end
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it "removes the final newline" do
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"abc\n".chop!.should == "abc"
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end
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it "removes the final carriage return, newline" do
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"abc\r\n".chop!.should == "abc"
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end
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it "removes the carriage return, newline if they are the only characters" do
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"\r\n".chop!.should == ""
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end
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it "does not remove more than the final carriage return, newline" do
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"abc\r\n\r\n".chop!.should == "abc\r\n"
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end
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it "removes a multi-byte character" do
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"あれ".chop!.should == "あ"
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end
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it "removes the final carriage return, newline from a multibyte String" do
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"あれ\r\n".chop!.should == "あれ"
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end
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it "removes the final carriage return, newline from a non-ASCII String" do
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str = "abc\r\n".encode "utf-32be"
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str.chop!.should == "abc".encode("utf-32be")
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end
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it "returns self if modifications were made" do
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str = "hello"
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str.chop!.should equal(str)
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end
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it "returns nil when called on an empty string" do
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"".chop!.should be_nil
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end
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it "raises a FrozenError on a frozen instance that is modified" do
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-> { "string\n\r".freeze.chop! }.should raise_error(FrozenError)
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end
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# see [ruby-core:23666]
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it "raises a FrozenError on a frozen instance that would not be modified" do
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a = ""
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a.freeze
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-> { a.chop! }.should raise_error(FrozenError)
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end
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end
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