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# This is test script to check that WIN32OLE should convert nil to VT_EMPTY in second try.
# [ruby-talk:137054]
begin
require 'win32ole'
rescue LoadError
end
require 'test/unit'
if defined?(WIN32OLE)
class TestNIL2VT_EMPTY < Test::Unit::TestCase
def setup
fs = WIN32OLE.new('Scripting.FileSystemObject')
@path = fs.GetFolder(".").path
end
def test_openSchema
con = nil
begin
con = WIN32OLE.new('ADODB.Connection')
con.connectionString = "Provider=MSDASQL;Extended Properties="
con.connectionString +="\"DRIVER={Microsoft Text Driver (*.txt; *.csv)};DBQ=#{@path}\""
con.open
rescue
con = nil
end
if con
rs = con.openSchema(4, [nil,nil,"DUMMY", "TABLE"])
assert(rs)
assert_equal("_Recordset", rs.ole_type.name)
rs = con.openSchema(4, [WIN32OLE_VARIANT::Empty, WIN32OLE_VARIANT::Empty, "DUMMY", "TABLE"])
assert(rs)
assert_equal("_Recordset", rs.ole_type.name)
end
end
end
end
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