Add tests for string library functions.

src/test/errors/args.lua

@@ -5,6 +5,8 @@ akey      = 'aa'
 astring   = 'abc'
 astrnum   = '789'
 anumber   = 1.23
+ainteger  = 345
+adouble   = 123.456
 aboolean  = true
 atable    = {[akey]=456}
 afunction = function() end

src/test/errors/stringlibargs.lua

@@ -0,0 +1,103 @@
+package.path = "?.lua;src/test/errors/?.lua"
+require 'args'
+
+-- arg type tests for string library functions
+local somestring = {astring,anumber}
+local notastring = {nil,aboolean,afunction,atable}
+local somenumber = {ainteger,adouble,tostring(ainteger),tostring(adouble)}
+local notanumber = {nil,astring,aboolean,afunction,atable}
+
+-- string.byte
+banner('string.byte')
+checkallpass('string.byte',{somestring,{nil,ainteger},{nil,ainteger}})
+checkallerrors('string.byte',{somestring,{astring,afunction,atable}},'bad argument')
+checkallerrors('string.byte',{notastring,{nil,111}},'bad argument')
+
+-- string.char
+banner('string.char')
+checkallpass('string.char',{{nil,0,1,40,127,128,255,'0','1','255','1.2',1.2}})
+checkallpass('string.char',{{0,127,255},{0,127,255}})
+checkallerrors('string.char',{{-1,256}},'bad argument')
+checkallerrors('string.char',{notanumber,notanumber},'bad argument')
+
+-- string.dump
+banner('string.dump')
+checkallpass('string.dump',{{afunction}})
+checkallerrors('string.dump',{notafunction},'bad argument')
+
+-- string.find
+banner('string.find')
+checkallpass('string.find',{somestring,somestring})
+checkallpass('string.find',{somestring,somestring,{nil,-3,3}})
+checkallpass('string.find',{somestring,somestring,somenumber,anylua})
+checkallerrors('string.find',{somestring,notastring},'bad argument')
+checkallerrors('string.find',{notastring,somestring},'bad argument')
+checkallerrors('string.find',{somestring,somestring,notanumber},'bad argument')
+
+-- string.format
+local numfmts = {'%c','%d','%E','%e','%f','%g','%G','%i','%o','%u','%X','%x'}
+local strfmts = {'%q','%s'}
+banner('string.format')
+checkallpass('string.format',{somestring,anylua})
+checkallpass('string.format',{numfmts,{ainteger,adouble,astrnum}})
+checkallpass('string.format',{strfmts,{astring,ainteger,adouble,astrnum}})
+checkallerrors('string.format',{numfmts,notastring},'bad argument')
+checkallerrors('string.format',{strfmts,notastring},'bad argument')
+
+-- string.gmatch
+banner('string.gmatch')
+checkallpass('string.gmatch',{somestring,somestring})
+checkallerrors('string.gmatch',{somestring,notastring},'bad argument')
+checkallerrors('string.gmatch',{notastring,somestring},'bad argument')
+
+-- string.gsub
+local somerepl = {astring,atable,afunction}
+local notarepl = {nil,aboolean}
+banner('string.gsub')
+checkallpass('string.gsub',{somestring,somestring,somerepl,{nil,-1}})
+checkallerrors('string.gsub',{notastring,somestring,somerepl},'bad argument')
+checkallerrors('string.gsub',{somestring,notastring,somerepl},'bad argument')
+checkallerrors('string.gsub',{{astring},{astring},notarepl},'bad argument')
+checkallerrors('string.gsub',{{astring},{astring},somerepl,notanumber},'bad argument')
+
+-- string.len
+banner('string.len')
+checkallpass('string.len',{somestring})
+checkallerrors('string.len',{notastring},'bad argument')
+
+-- string.lower
+banner('string.lower')
+checkallpass('string.lower',{somestring})
+checkallerrors('string.lower',{notastring},'bad argument')
+
+-- string.match
+banner('string.match')
+checkallpass('string.match',{somestring,somestring})
+checkallpass('string.match',{somestring,somestring,{nil,-3,3}})
+checkallerrors('string.match',{somestring,notastring},'bad argument')
+checkallerrors('string.match',{notastring,somestring},'bad argument')
+checkallerrors('string.match',{somestring,somestring,notanumber},'bad argument')
+
+-- string.reverse
+banner('string.reverse')
+checkallpass('string.reverse',{somestring})
+checkallerrors('string.reverse',{notastring},'bad argument')
+
+-- string.rep
+banner('string.rep')
+checkallpass('string.rep',{somestring,somenumber})
+checkallerrors('string.rep',{notastring,somenumber},'bad argument')
+checkallerrors('string.rep',{somestring,notanumber},'bad argument')
+
+-- string.sub
+banner('string.sub')
+checkallpass('string.sub',{somestring,somenumber,somenumber})
+checkallerrors('string.sub',{notastring,somenumber,somenumber},'bad argument')
+checkallerrors('string.sub',{somestring,notanumber,somenumber},'bad argument')
+checkallerrors('string.sub',{somestring,somenumber,notanumber},'bad argument')
+
+-- string.upper
+banner('string.upper')
+checkallpass('string.upper',{somestring})
+checkallerrors('string.upper',{notastring},'bad argument')
+