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64 lines
1.7 KiB
Ruby
64 lines
1.7 KiB
Ruby
class Language_Regexp_Interpolation_Mock1 < Java::Lang::Object
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def to_s
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'class_with_to_s'
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end
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end
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describe "Regexps with interpolation" do
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it "allow interpolation of strings" do
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str = "foo|bar"
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/#{str}/.should == /foo|bar/
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end
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it "allows interpolation of literal regexps" do
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re = /foo|bar/
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#/#{re}/.should == /(?-mix:foo|bar)/
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/#{re}/.should == /(?m-ix:foo|bar)/
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end
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it "allows interpolation of any class that responds to to_s" do
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o = Language_Regexp_Interpolation_Mock1.new
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/#{o}/.should == /class_with_to_s/
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end
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it "allows interpolation which mixes modifiers" do
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re = /foo/i
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#/#{re} bar/m.should == /(?i-mx:foo) bar/m
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/#{re} bar/m.should == /(?mi-x:foo) bar/m
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end
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it "allows interpolation to interact with other Regexp constructs" do
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str = "foo)|(bar"
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/(#{str})/.should == /(foo)|(bar)/
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str = "a"
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/[#{str}-z]/.should == /[a-z]/
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end
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# MacRuby TODO: These fail to parse with `macruby`, but not with `miniruby`
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#
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# it "gives precedence to escape sequences over substitution" do
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# str = "J"
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# /\c#{str}/.to_s.should == '(?-mix:\c#' + '{str})'
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# end
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it "throws RegexpError for malformed interpolation" do
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s = ""
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lambda { /(#{s}/ }.should raise_error(RegexpError)
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s = "("
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lambda { /#{s}/ }.should raise_error(RegexpError)
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end
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it "allows interpolation in extended mode" do
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var = "#comment\n foo #comment\n | bar"
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(/#{var}/x =~ "foo").should == (/foo|bar/ =~ "foo")
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end
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it "allows escape sequences in interpolated regexps" do
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escape_seq = %r{"\x80"}n
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#%r{#{escape_seq}}n.should == /(?-mix:"\x80")/n
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%r{#{escape_seq}}n.should == /(?m-ix:"\x80")/n
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end
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end
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