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Contents
require File.expand_path('../../../spec_helper', __FILE__)
require File.expand_path('../../fixtures/classes', __FILE__)
describe "Regexps with interpolation" do
it "allow interpolation of strings" do
str = "foo|bar"
/#{str}/.should == /foo|bar/
end
it "allows interpolation of literal regexps" do
re = /foo|bar/
/#{re}/.should == /(?-mix:foo|bar)/
end
it "allows interpolation of any class that responds to to_s" do
o = LanguageSpecs::ClassWith_to_s.new
/#{o}/.should == /class_with_to_s/
end
it "allows interpolation which mixes modifiers" do
re = /foo/i
/#{re} bar/m.should == /(?i-mx:foo) bar/m
end
it "allows interpolation to interact with other Regexp constructs" do
str = "foo)|(bar"
/(#{str})/.should == /(foo)|(bar)/
str = "a"
/[#{str}-z]/.should == /[a-z]/
end
it "gives precedence to escape sequences over substitution" do
str = "J"
/\c#{str}/.to_s.should == '(?-mix:\c#' + '{str})'
end
it "throws RegexpError for malformed interpolation" do
s = ""
lambda { /(#{s}/ }.should raise_error(RegexpError)
s = "("
lambda { /#{s}/ }.should raise_error(RegexpError)
end
it "allows interpolation in extended mode" do
var = "#comment\n foo #comment\n | bar"
(/#{var}/x =~ "foo").should == (/foo|bar/ =~ "foo")
end
it "allows escape sequences in interpolated regexps" do
escape_seq = %r{"\x80"}n
%r{#{escape_seq}}n.should == /(?-mix:"\x80")/n
end
end
Version data entries
52 entries across 52 versions & 2 rubygems