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Contents
require File.expand_path('../../../spec_helper', __FILE__)
require File.expand_path('../fixtures/classes.rb', __FILE__)
describe "String#reverse" do
it "returns a new string with the characters of self in reverse order" do
"stressed".reverse.should == "desserts"
"m".reverse.should == "m"
"".reverse.should == ""
end
it "taints the result if self is tainted" do
"".taint.reverse.tainted?.should == true
"m".taint.reverse.tainted?.should == true
end
end
describe "String#reverse!" do
it "reverses self in place and always returns self" do
a = "stressed"
a.reverse!.should equal(a)
a.should == "desserts"
"".reverse!.should == ""
end
ruby_version_is ""..."1.9" do
it "raises a TypeError on a frozen instance that is modified" do
lambda { "anna".freeze.reverse! }.should raise_error(TypeError)
lambda { "hello".freeze.reverse! }.should raise_error(TypeError)
end
it "does not raise an exception on a frozen instance that would not be modified" do
"".freeze.reverse!.should == ""
end
end
ruby_version_is "1.9" do
it "raises a RuntimeError on a frozen instance that is modified" do
lambda { "anna".freeze.reverse! }.should raise_error(RuntimeError)
lambda { "hello".freeze.reverse! }.should raise_error(RuntimeError)
end
# see [ruby-core:23666]
it "raises a RuntimeError on a frozen instance that would not be modified" do
lambda { "".freeze.reverse! }.should raise_error(RuntimeError)
end
end
end
Version data entries
52 entries across 52 versions & 2 rubygems