def test_normalization_case_5():
'''
test consensus.normalize() with identical ref/alt of length < 1
expectation: no ref, alt = first character
Parameters
---------
Returns
-------
'''
consensus_ref, consensus_alt = consensus.normalize("TAC", "TAC")
assert consensus_ref == "T"
assert consensus_alt == "T"
def test_normalization_case_8():
'''
test consensxus.normalize() with differing ref/alt with shared first character
expectation: normalized = shared first characters + all characters after 1st index
Parameters
---------
Returns
-------
'''
consensus_ref, consensus_alt = consensus.normalize("AT", "ATT")
assert consensus_ref == "A"
assert consensus_alt == "AT"
def test_normalization_case_4():
'''
test consensus.normalize() with differing ref/alt length 1
expectation: no changes in normalization
Parameters
---------
Returns
-------
'''
consensus_ref, consensus_alt = consensus.normalize("T", "C")
assert consensus_ref == "T"
assert consensus_alt == "C"
def test_normalization_case_9():
'''
test consensxus.normalize() GTA/GTATA
expectation: G, GTA; first character matches, second 2 of ref matches to
alt, so alt becomes first character + last 2
---------
Returns
-------
'''
consensus_ref, consensus_alt = consensus.normalize("GTA", "GTATA")
assert consensus_ref == "G"
assert consensus_alt == "GTA"
def test_normalization_case_6():
'''
test consensus.normalize() with differing ref/alt with shared first character
expectation: no changes in normalization
Parameters
---------
Returns
-------
'''
consensus_ref, consensus_alt = consensus.normalize("T", "TAC")
assert consensus_ref == "T"
assert consensus_alt == "TAC"
def test_normalization_case_3():
'''
test consensus.normalize() with identical ref/alt
expectation: no changes in normalization
Parameters
---------
Returns
-------
'''
consensus_ref, consensus_alt = consensus.normalize("T", "T")
assert consensus_ref == "T"
assert consensus_alt == "T"
def test_normalization_case_2():
'''
test consensus.normalize() with empty data
expectation: empty outputs
Parameters
---------
Returns
-------
'''
consensus_ref, consensus_alt = consensus.normalize("", "")
assert consensus_ref == ""
assert consensus_alt == ""
def test_normalization_case_1():
'''
test consensus.normalize() with None data
expectation: None outputs
Parameters
---------
Returns
-------
'''
consensus_ref, consensus_alt = consensus.normalize(None, None)
assert consensus_ref == None
assert consensus_alt == None