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Improve unit test for "next()" function

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This commit is contained in:
James Roseborough
2008-04-09 12:46:05 +00:00
parent 09aa37a837
commit 09771147cf
1 changed files with 27 additions and 13 deletions
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40
src/test/res/next.lua
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@@ -1,14 +1,28 @@
-- call with arg 'true' to turn on error messages
local messages = select(1,...)
function mpcall(...)
if messages then return pcall(...)
else return (pcall(...)) end
end
-- unit tests for the next() function
function donexts(tag,table,count)
local index = nil
for i = 1,count do
index,value = next(table,index)
print( tag, index, value )
function checkvalues(tag, tbl)
local values = {}
local index,value = next(tbl,nil)
while index do
table.insert( values, tostring(index).."="..tostring(value) )
index,value = next(tbl,index)
end
print( tag, '--- -1', 'pcall( next, table,-1 )', pcall( next, table,-1 ) )
print( tag, '--- 0', 'pcall( next, table,0 )', pcall( next, table,0 ) )
print( tag, '---"a"', 'pcall( next, table,"a" )', pcall( next, table,"a" ) )
print( tag, '--- 10', 'pcall( next, table, 10 )', pcall( next, table, 10 ) )
table.sort( values )
print( tag, "values: {"..table.concat(values,",").."}" )
end
function donexts(tag,tbl,count)
checkvalues(tag,tbl)
print( tag, '--- -1', 'pcall( next, tbl,-1 )', mpcall( next, tbl,-1 ) )
print( tag, '--- 0', 'pcall( next, tbl,0 )', mpcall( next, tbl,0 ) )
print( tag, '---"a"', 'pcall( next, tbl,"a" )', mpcall( next, tbl,"a" ) )
print( tag, '--- 10', 'pcall( next, tbl, 10 )', mpcall( next, tbl, 10 ) )
end
donexts( 'next1', {}, 2 )
donexts( 'next2', {'one', 'two', 'three' }, 5 )
@@ -16,8 +30,8 @@ donexts( 'next3', { aa='aaa', bb='bbb', cc='ccc', [20]='20', [30]='30'}, 7 )
donexts( 'next4', {'one', 'two', 'three', aa='aaa', bb='bbb', cc='ccc', [20]='20', [30]='30'}, 9 )
donexts( 'next5', {'one', 'two', 'three', [-1]='minus-one', [0]='zero' }, 7 )
print( 'pcall(next)', pcall(next) )
print( 'pcall(next,nil)', pcall(next,nil) )
print( 'pcall(next,"a")', pcall(next,"a") )
print( 'pcall(next,1)', pcall(next,1) )
print( 'pcall(next)', mpcall(next) )
print( 'pcall(next,nil)', mpcall(next,nil) )
print( 'pcall(next,"a")', mpcall(next,"a") )
print( 'pcall(next,1)', mpcall(next,1) )