def test2():
"""
The second test function
"""
print("TEST CASE 2")
dna = DNAList()
# checks for test case of copy cannot copy when gene list is empty
dna.copy()
# checks the append function if empty string is appended it wont append the empty String
dna.append("")
# if the item is None it also won't be appended in the gene list
dna.append(None)
# items with values will be appended in the gene list
dna.append("A")
dna.append("B")
dna.append("C")
print("After append method ", dna)
normList = DNAList()
# empty list wont be appended in the gene list
dna.join(normList)
newother = DNAList()
newother.append("H")
newother.append("I")
newother.append("J")
newother.append("K")
# will append the elements in the front if index is 0
dna.splice(0, newother)
print("After splice method at index 0 ", dna)
# will not append the gene list if the list passed in the function is empty
dna.splice(0, normList)
newotherlist = DNAList()
newotherlist.append("W")
newotherlist.append("Q")
newotherlist.append("R")
# will not replace if the given object is of list is empty
dna.replace("BCD", normList)
#cannot replace if string to be replaced is None or empty
dna.replace("", newotherlist)
dna.replace(None, newotherlist)
# replaces the starting value of the gene list with other list
# replace any substring with any other list of elements provided
dna.replace("H", newotherlist)
def test_copy():
"""
checks if another copy is made or not.
If the original List is empty, copy of empty String will be returned.
:return:
"""
dna_list = DNAList("COPYTEST")
print(dna_list.copy())
pass
def test1():
"""
This is a simple test case which checks all the functions
:return:
"""
print("TEST CASE 1")
dna = DNAList()
# items with values will be appended in the gene list
dna.append("A")
dna.append("B")
dna.append("C")
print("After append method ", dna)
other = DNAList()
other.append("D")
other.append("E")
other.append("F")
other.append("G")
# list with values will be appended in the gene list
dna.join(other)
print("After join method with the list provided", dna)
# if gene list is not empty then it will copy the current items in the list in a new list
newList = dna.copy()
print("After copy method", newList)
newother = DNAList()
newother.append("H")
newother.append("I")
newother.append("J")
newother.append("K")
# list with elements after the index will be added in the list
dna.splice(4, newother)
print("After splice method at index 4 ", dna)
# index of elements specified will be removed from the list
dna.snip(4, 5)
print("After snip method with index 4 and 5 ", dna)
newotherlist = DNAList()
newotherlist.append("W")
newotherlist.append("Q")
newotherlist.append("R")
# the string given will be replaced with the list given
dna.replace("BCD", newotherlist)
print("After replace method with string BCD", dna)
print()
# Test case 19
temp1, repstr, temp2 = DNAList('ATCGGAC'), 'ACG', DNAList('GTC')
test(False, temp1.replace(repstr, temp2))
# Test case 20
temp1, repstr, temp2 = DNAList('TCAACG'), 'ACG', DNAList('GTC')
temp1.replace(repstr, temp2)
test('TCAGTC', str(temp1))
# Test copy function
print("Testing copy function:")
# Test case 21
temp1 = DNAList('ACTG')
temp2 = temp1.copy()
test('ACTG', str(temp2))
# Check if it is a value copy or a reference copy
# Test case 22
temp1.append('G')
test('ACTG', str(temp2))
# Comprehensive test
print("Comprehensive test:")
# Test case 23
temp1 = DNAList('')
temp1.append('A')
temp1.append('G')
temp1.splice(0, DNAList('CGTA'))
temp1.join(DNAList('TTA'))
def copy_Tester():
test = DNAList("AACCTTGG")
test.copy()
print('Normal Case' + " " + test.__str__())
test = DNAList("")
print('Copy of empty list' + " " + test.__str__())