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--
-- The examples described in the documentation are below.
--
lu = require('luaunit')
function add(v1,v2)
-- add positive numbers
-- return 0 if any of the numbers are 0
-- error if any of the two numbers are negative
if v1 < 0 or v2 < 0 then
error('Can only add positive or null numbers, received '..v1..' and '..v2)
end
if v1 == 0 or v2 == 0 then
return 0
end
return v1+v2
end
function adder(v)
-- return a function that adds v to its argument using add
function closure( x ) return x+v end
return closure
end
function div(v1,v2)
-- divide positive numbers
-- return 0 if any of the numbers are 0
-- error if any of the two numbers are negative
if v1 < 0 or v2 < 0 then
error('Can only divide positive or null numbers, received '..v1..' and '..v2)
end
if v1 == 0 or v2 == 0 then
return 0
end
return v1/v2
end
TestAdd = {}
function TestAdd:testAddPositive()
lu.assertEquals(add(1,1),2)
end
function TestAdd:testAddZero()
lu.assertEquals(add(1,0),0)
lu.assertEquals(add(0,5),0)
lu.assertEquals(add(0,0),0)
end
function TestAdd:testAddError()
lu.assertErrorMsgContains('Can only add positive or null numbers, received 2 and -3', add, 2, -3)
end
function TestAdd:testAdder()
f = adder(3)
lu.assertIsFunction( f )
lu.assertEquals( f(2), 5 )
end
-- end of table TestAdd
TestDiv = {}
function TestDiv:testDivPositive()
lu.assertEquals(div(4,2),2)
end
function TestDiv:testDivZero()
lu.assertEquals(div(4,0),0)
lu.assertEquals(div(0,5),0)
lu.assertEquals(div(0,0),0)
end
function TestDiv:testDivError()
lu.assertErrorMsgContains('Can only divide positive or null numbers, received 2 and -3', div, 2, -3)
end
-- end of table TestDiv
--[[
--
-- Uncomment this section to see how failures are displayed
--
TestWithFailures = {}
-- two failing tests
function TestWithFailures:testFail1()
lu.assertEquals( "toto", "titi")
end
function TestWithFailures:testFail2()
local a=1
local b='toto'
local c = a + b -- oops, can not add string and numbers
return c
end
-- end of table TestWithFailures
]]
--[[
TestLogger = {}
function TestLogger:setUp()
-- define the fname to use for logging
self.fname = 'mytmplog.log'
-- make sure the file does not already exists
os.remove(self.fname)
end
function TestLogger:testLoggerCreatesFile()
initLog(self.fname)
log('toto')
f = io.open(self.fname, 'r')
lu.assertNotNil( f )
f:close()
end
function TestLogger:tearDown()
self.fname = 'mytmplog.log'
-- cleanup our log file after all tests
os.remove(self.fname)
end
-- end of table TestLogger
]]
os.exit(lu.LuaUnit.run())
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