Sha256: 5334e01f7e561ee019f847f675f9c3e7fb7f2105933b8b55390705f27c98d642
Contents?: true
Size: 760 Bytes
Versions: 7
Compression:
Stored size: 760 Bytes
Contents
require 'spec_helper'
describe Parslet::Atoms::Lookahead do
include Parslet
describe 'negative lookahead' do
it "influences the error tree" do
parser = str('f').absent? >> str('b')
cause = catch_failed_parse { parser.parse('f') }
cause.ascii_tree.should == "Failed to match sequence (!'f' 'b') at line 1 char 1.\n`- Input should not start with 'f' at line 1 char 1.\n"
end
end
describe 'positive lookahead' do
it "influences the error tree" do
parser = str('f').present? >> str('b')
cause = catch_failed_parse { parser.parse('b') }
cause.ascii_tree.should == "Failed to match sequence (&'f' 'b') at line 1 char 1.\n`- Input should start with 'f' at line 1 char 1.\n"
end
end
end
Version data entries
7 entries across 7 versions & 2 rubygems