>>> from deutes import classifica_saldos

>>> text1 = '''Alfa:1800:800
... Beta:400:400
... Gamma:900:100
... Delta:500:100
... Epsilon:300:500
... '''

>>> with open('factures1.txt', 'w') as f:
...     n = f.write(text1)

>>> dlimits = {
...    "Alfa": 1000, "Beta": 500, "Gamma": 750,
...    "Delta": 300, "Epsilon": 200}

>>> classifica_saldos('factures1.txt',dlimits,'fok1.txt','fdeu1.txt')

>>> with open('fok1.txt','r') as f:
...   s1a = f.read()
>>> s1a == 'Alfa:1000:1000\nBeta:0:500\nEpsilon:0:200\n'
True

>>> with open('fdeu1.txt','r') as f:
...   s1b = f.read()
>>> s1b == 'Gamma:800:750\nDelta:400:300\n'
True

>>> dlimits2 = {
...     "Alfa": 1000, "Beta": 500, "Gamma": 750, "Delta": 300,
...     "Epsilon": 200, "Zeta": 300, "Eta": 600, "Theta": 100,
...     "Iota": 0, "Kappa": 1500, "Lambda": 1200, "Mu": 10}

>>> text2 = '''Alfa:1800:800
... Beta:400:400
... Gamma:900:100
... Delta:500:100
... Epsilon:300:500
... Zeta:1200:900
... Eta:750:100
... Theta:100:50
... Iota:0:0
... Kappa:2500:1000
... Lambda:2000:400
... Mu:1000:999
... '''

>>> with open('factures2.txt', 'w') as f:
...     n = f.write(text2)

>>> classifica_saldos('factures2.txt', dlimits2, 'fok2.txt', 'fdeu2.txt')

>>> with open('fok2.txt', 'r') as f:
...     s2a = f.read()
>>> s2a == 'Alfa:1000:1000\nBeta:0:500\nEpsilon:0:200\nZeta:300:300\nTheta:50:100\nIota:0:0\nKappa:1500:1500\nMu:1:10\n'
True

>>> with open('fdeu2.txt', 'r') as f:
...     s2b = f.read()
>>> s2b == 'Gamma:800:750\nDelta:400:300\nEta:650:600\nLambda:1600:1200\n'
True