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ruby--ruby/spec/ruby/core/string/strip_spec.rb
2020-05-03 12:28:29 +02:00

62 lines
1.7 KiB
Ruby

require_relative '../../spec_helper'
require_relative 'fixtures/classes'
describe "String#strip" do
it "returns a new string with leading and trailing whitespace removed" do
" hello ".strip.should == "hello"
" hello world ".strip.should == "hello world"
"\tgoodbye\r\v\n".strip.should == "goodbye"
"\x00 goodbye \x00".strip.should == "\x00 goodbye"
end
it "returns a copy of self with trailing NULL bytes and whitespace" do
" \x00 goodbye \x00 ".strip.should == "\x00 goodbye"
end
ruby_version_is ''...'2.7' do
it "taints the result when self is tainted" do
"".taint.strip.should.tainted?
"ok".taint.strip.should.tainted?
" ok ".taint.strip.should.tainted?
end
end
end
describe "String#strip!" do
it "modifies self in place and returns self" do
a = " hello "
a.strip!.should equal(a)
a.should == "hello"
a = "\tgoodbye\r\v\n"
a.strip!
a.should == "goodbye"
a = "\000 goodbye \000"
a.strip!
a.should == "\000 goodbye"
end
it "returns nil if no modifications where made" do
a = "hello"
a.strip!.should == nil
a.should == "hello"
end
it "modifies self removing trailing NULL bytes and whitespace" do
a = " \x00 goodbye \x00 "
a.strip!
a.should == "\x00 goodbye"
end
it "raises a FrozenError on a frozen instance that is modified" do
-> { " hello ".freeze.strip! }.should raise_error(FrozenError)
end
# see #1552
it "raises a FrozenError on a frozen instance that would not be modified" do
-> {"hello".freeze.strip! }.should raise_error(FrozenError)
-> {"".freeze.strip! }.should raise_error(FrozenError)
end
end