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Contents
require File.expand_path('../../../spec_helper', __FILE__)
describe "Regexp.union" do
it "returns /(?!)/ when passed no arguments" do
Regexp.union.should == /(?!)/
end
it "returns a regular expression that will match passed arguments" do
Regexp.union("penzance").should == /penzance/
Regexp.union("skiing", "sledding").should == /skiing|sledding/
Regexp.union(/dogs/, /cats/i).should == /(?-mix:dogs)|(?i-mx:cats)/
end
it "quotes any string arguments" do
Regexp.union("n", ".").should == /n|\./
end
ruby_version_is '' ... '1.9' do
it "propagates the kcode setting to the output Regexp" do
Regexp.union(/./u, "meow").kcode.should == "utf8"
end
end
it "raises ArgumentError if the kcodes conflict" do
lambda {
Regexp.union(/./u, /./e)
}.should raise_error(ArgumentError)
end
it "uses to_str to convert arguments (if not Regexp)" do
obj = mock('pattern')
obj.should_receive(:to_str).and_return('foo')
Regexp.union(obj, "bar").should == /foo|bar/
end
ruby_version_is '1.8.7' do
it "accepts a single array of patterns as arguments" do
Regexp.union(["skiing", "sledding"]).should == /skiing|sledding/
Regexp.union([/dogs/, /cats/i]).should == /(?-mix:dogs)|(?i-mx:cats)/
lambda{Regexp.union(["skiing", "sledding"], [/dogs/, /cats/i])}.should raise_error(TypeError)
end
end
end
Version data entries
52 entries across 52 versions & 2 rubygems