def assert_resultat(s, resultat, latex = None, **parametres):
i = Interprete(verbose = VERBOSE, **parametres)
r, l = i.evaluer(s)
if r != resultat:
i = Interprete(verbose = True, **parametres)
r, l = i.evaluer(s)
print "ERREUR (" + s + "): ", r, " != ", resultat
assert(r == resultat)
if latex is not None:
latex = "$" + latex + "$"
if l != latex:
print "ERREUR (" + s + "): ", l, " != ", latex
assert(l == latex)
def test_systeme():
i = Interprete(verbose = VERBOSE, adapter_separateur=False)
i.evaluer("g(x)=a x^3+b x^2 + c x + d")
i.evaluer("resoudre(g(-3)=2 et g(1)=6 et g(5)=3 et g'(1)=0)")
res = i.derniers_resultats[-1]
assert isinstance(res, dict)
assertEqual(res, {S('a'): S(1)/128, S('b'): -S(31)/128, S('c'): S(59)/128, S('d'): S(739)/128})
def test_session():
i = Interprete(verbose = VERBOSE)
i.evaluer("1+7")
i.evaluer("x-3")
i.evaluer("ans()+ans(1)")
assertDernier(i, "x + 5")
i.evaluer("f(x, y, z)=2x+3y-z")
i.evaluer("f(-1, 5, a)")
assertDernier(i, "-a + 13")
i.evaluer("f(x)=x^2-7x+3")
i.evaluer("f'(x)")
assertDernier(i, "2*x - 7")
# Noms réservés
assertRaises(NameError, i.evaluer, "e=3")
assertRaises(NameError, i.evaluer, "pi=3")
assertRaises(NameError, i.evaluer, "i=3")
assertRaises(NameError, i.evaluer, "oo=3")
assertRaises(NameError, i.evaluer, "factorise=3")
# Etc.
# Test des générateurs
i.evaluer('f(x)=x+3')
i.evaluer('[f(j) for j in range(1,11)]')
assertDernier(i, '[4, 5, 6, 7, 8, 9, 10, 11, 12, 13]')
i.evaluer('tuple(i for i in range(7))')
assertDernier(i, '(0, 1, 2, 3, 4, 5, 6)')
i.evaluer('[j for j in range(7)]')
assertDernier(i, '[0, 1, 2, 3, 4, 5, 6]')
# _11 is an alias for ans(11)
i.evaluer('_11 == _')
assertDernier(i, 'True')
i.evaluer('_7')
assertDernier(i, "2*x - 7")
# _ is an alias for ans(-1), __ is an alias for ans(-2), and so on.
i.evaluer('_ == -7 + 2*x')
assertDernier(i, 'True')
i.evaluer('__')
assertDernier(i, "2*x - 7")
i.evaluer('______') # ans(-6)
assertDernier(i, '(0, 1, 2, 3, 4, 5, 6)')
# Affichage des chaînes en mode text (et non math)
i.evaluer('"Bonjour !"')
assert i.latex_dernier_resultat == u'\u201CBonjour !\u201D'
i.changer_separateurs = True
resultat, latex = i.evaluer('1,2')
assert resultat == '1,2'
assertAlmostEqual(i.derniers_resultats[-1], 1.2)
resultat, latex = i.evaluer('"1,2"')
assert resultat == '"1,2"'
i.evaluer('?aide')
i.evaluer('aide?')
i.evaluer('aide(aide)')
msg_aide = u"\n== Aide sur aide ==\nRetourne (si possible) de l'aide sur la fonction saisie."
resultats = i.derniers_resultats
assert resultats[-3:] == [msg_aide, msg_aide, msg_aide]
# LaTeX
latex = i.evaluer("gamma(x)")[1]
assert latex == r'$\mathrm{\Gamma}\left(x\right)$'
def test_issue_206_ter():
i = Interprete(verbose = VERBOSE)
etat_interne = \
u"""_ = 0
@derniers_resultats = [
'atan2(x, y)',
]"""
i.load_state(etat_interne)
i.evaluer('ln(9)-2ln(3)')
assertDernier(i, '0')
def test_issue_206_bis():
i = Interprete(verbose = VERBOSE)
etat_interne = \
u"""_ = 0
@derniers_resultats = [
'Abs(x)',
]"""
i.load_state(etat_interne)
i.evaluer('abs(-24/5 - 2 i/5)')
assertDernier(i, '2*145**(1/2)/5')
def test_issue_206():
i = Interprete(verbose = VERBOSE)
etat_interne = \
u"""_ = 0
@derniers_resultats = [
're(x)',
]"""
i.load_state(etat_interne)
i.evaluer("-1+\i\sqrt{3}")
assertDernier(i, '-1 + 3**(1/2)*I')
i.evaluer('-x**2 + 2*x - 3>>factor')
assertDernier(i, '-x**2 + 2*x - 3')
def _eval2latex(code):
print("code::" + repr(code))
return Interprete(**kw).evaluer(code.strip())[1]
def test_issue_185():
i = Interprete(verbose = VERBOSE)
i.evaluer("a=1+I")
i.evaluer("a z")
assertDernier(i, 'z*(1 + I)')
