test.lua

   1 #!/usr/bin/lua
   2
   3 require 'lpeg'
   4
   5 local gr = dofile'mime.lua'
   6
   7 local match = function (s, r, c)
   8         c= c or s
   9         local ret = { string = s, rule = r, match = true, capture = c }
  10         return ret
  11 end
  12
  13 local tests = {
  14         { string = '\r\n ', rule = 'FWS', match = true, capture = ' ' },
  15         { string = '"rrr\r\n aaa"', rule ='quoted-string', match = true, capture = 'rrr aaa'},
  16         { string = '(some stupid @(comment) \\( ** \r\n )', rule ='comment', match = true, capture = ' '},
  17         { string = 'single_atom_1', rule ='atom', match = true, capture = 'single_atom_1'},
  18         { string = '2nd{atom}2', rule ='atom', match = true, capture = '2nd{atom}2'},
  19         { string = '2nd{atom}2.&checking!', rule ='dot-atom', match = true, capture = '2nd{atom}2.&checking!'},
  20         { string = '\r\n (another comment ) \t\r\n (id %(crmnr) \\( ** \r\n )   ', rule ='CFWS', match = true, capture = ' '},
  21         { string = '()', rule ='CFWS', match = true, capture = ' '},
  22         { string = 'Icanwrite"a \r\n simple"phrase', rule ='phrase', match = true},
  23         { string = 'Thu, 2\r\n Apr 2009 14:36:04 +0000', rule ='date-time', match = true, capture='Thu, 2 Apr 2009 14:36:04 +0000'},
  24         { string = '(a CFWS) \r\n (that ends here)[ 127.0.0.1:8888 oooo]', rule ='domain-literal', match = true, },
  25         { string = 'mauro.iazzi@gmail.com', rule ='address', match = true, },
  26         { string = '<mauro.iazzi@gmail.com>', rule ='address', match = true, },
  27 }
  28
  29 local dee = function (...)
  30         --print(...)
  31         return ...
  32 end
  33
  34 local gather = function (...)
  35         local n = select('#', ...)
  36         return n==1 and ... or { ... }
  37 end
  38
  39 for i, t in ipairs(tests) do
  40         local s, r, m, c = t.string, t.rule, t.match, t.capture
  41         gr[1] = lpeg.V(r) / gather * lpeg.Cp()
  42         local patt = lpeg.P(gr)
  43         print('performing test ' .. i .. ' on rule ' .. r)
  44         local ret, n = dee(patt:match(s))
  45         if m then
  46                 assert(ret, 'test '..i..' failed by not matching a conforming string')
  47                 assert(n==#s+1, 'test '..i..' failed by not matching the full string (match was '..string.sub(s, 1, n-1)..')')
  48                 if c then
  49                         assert(ret==c, 'test '..i..' failed by returning the wrong capture '..ret..' instead of '..c)
  50                 end
  51         else
  52                 assert(ret==nil, 'test '..i..' failed by matching a wrong string')
  53         end
  54 end
  55
  56