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81 lines
2.5 KiB
Ruby
81 lines
2.5 KiB
Ruby
require_relative '../../spec_helper'
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require_relative 'fixtures/classes'
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require_relative 'shared/strip'
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describe "String#rstrip" do
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it_behaves_like :string_strip, :rstrip
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it "returns a copy of self with trailing whitespace removed" do
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" hello ".rstrip.should == " hello"
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" hello world ".rstrip.should == " hello world"
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" hello world \n\r\t\n\v\r".rstrip.should == " hello world"
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"hello".rstrip.should == "hello"
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"hello\x00".rstrip.should == "hello"
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"こにちわ ".rstrip.should == "こにちわ"
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end
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it "works with lazy substrings" do
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" hello "[1...-1].rstrip.should == " hello"
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" hello world "[1...-1].rstrip.should == " hello world"
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" hello world \n\r\t\n\v\r"[1...-1].rstrip.should == " hello world"
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" こにちわ "[1...-1].rstrip.should == "こにちわ"
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end
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it "returns a copy of self with all trailing whitespace and NULL bytes removed" do
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"\x00 \x00hello\x00 \x00".rstrip.should == "\x00 \x00hello"
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end
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end
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describe "String#rstrip!" do
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it "modifies self in place and returns self" do
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a = " hello "
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a.rstrip!.should equal(a)
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a.should == " hello"
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end
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it "modifies self removing trailing NULL bytes and whitespace" do
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a = "\x00 \x00hello\x00 \x00"
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a.rstrip!
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a.should == "\x00 \x00hello"
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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.rstrip!.should == nil
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a.should == "hello"
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end
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it "makes a string empty if it is only whitespace" do
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"".rstrip!.should == nil
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" ".rstrip.should == ""
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" ".rstrip.should == ""
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end
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ruby_version_is '3.0' do
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it "removes trailing NULL bytes and whitespace" do
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a = "\000 goodbye \000"
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a.rstrip!
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a.should == "\000 goodbye"
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end
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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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-> { " hello ".freeze.rstrip! }.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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-> { "hello".freeze.rstrip! }.should raise_error(FrozenError)
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-> { "".freeze.rstrip! }.should raise_error(FrozenError)
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end
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it "raises an ArgumentError if the last non-space codepoint is invalid" do
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s = "abc\xDF".force_encoding(Encoding::UTF_8)
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s.valid_encoding?.should be_false
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-> { s.rstrip! }.should raise_error(ArgumentError)
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s = "abc\xDF ".force_encoding(Encoding::UTF_8)
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s.valid_encoding?.should be_false
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-> { s.rstrip! }.should raise_error(ArgumentError)
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end
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end
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