def main():
import sys
args = List(sys.argv)
if len(args) >= 2 and args[1] == "run":
import code
port = args.get(2, 1234)
host = args.get(3, "localhost")
# create db object
db = orm.setup("easydb", schema)
# keep only objects defined in the schema module
items = {
k: v
for k, v in globals().items()
if getattr(v, '__module__', None) == "schema"
}
items['db'] = db
# start the database connection
db.connect(host, port)
# start interactive mode
code.interact(local=items)
# close database connection
db.close()
elif len(args) in [2, 3] and args[1] == "export":
output = orm.export("easydb", schema)
if len(args) == 3:
# write outout of export() to file
with open(args[2], "wt") as f:
f.write(output)
else:
print(output)
else:
print("usage:", sys.argv[0], "run [PORT=1234] [HOST=localhost]")
print("\tstarts interactive shell")
print("usage:", sys.argv[0], "export [FILE]")
print("\texports schema to FILE or print to console")
def main():
# Set up the tester.
test = asst3.start_test('orm get command test', TOTAL_MARK)
# Import student's code.
import orm
mark = 0
case_number = 1
# Start the server.
server = asst3.Server()
server.start("preload.txt")
# Set up student's database object and connect to the database.
db = orm.setup("easydb", asst3_schema)
asst3.try_connect(db, server)
# ===== CASE 1: Get id which does not exist. =====
print("CASE {}: Get id which does not exist.".format(case_number).format(
case_number))
(mark, result) = asst3.run_test_case(
asst3_schema.User.get, (db, 777), case_number, 1, mark, True,
orm.exceptions.ObjectDoesNotExist
) # This should raise an ObjectDoesNotExist error.
case_number = case_number + 1
# ===== CASE 2: Get a row object with no error. =====
id_number = random.randint(1, 3)
if id_number == 1:
age = 38
elif id_number == 2:
age = 48
else:
age = 21
print("CASE {}: Get a row object with no error.".format(case_number))
# This should not raise any error.
try:
user1 = asst3_schema.User.get(db, id_number)
if user1.age == age:
print("CASE {} PASS".format(case_number))
mark = mark + 1
else:
print(
"CASE {} FAIL: the field value of the row object is not correct"
.format(case_number))
except Exception as e:
print("CASE {} FAIL: {}".format(case_number, str(e)))
case_number = case_number + 1
# ===== CASE 3: Get a row object which has foreign key field with no error. =====
id_number = random.randint(1, 4)
if id_number == 1:
firstName = "James"
else:
firstName = "Alice"
print(
"CASE {}: Get a row object which has foreign key field with no error.".
format(case_number))
# This should not raise any error.
try:
account1 = asst3_schema.Account.get(db, id_number)
if (account1.type == "Normal") and (account1.user.firstName
== firstName):
print("CASE {} PASS".format(case_number))
mark = mark + 1
else:
print(
"CASE {} FAIL: the field value of the row object is not correct"
.format(case_number))
except Exception as e:
print("CASE 2 FAIL: {}".format(case_number, str(e)))
db.close()
server.end()
test.add_mark(mark)
def setUp(self):
self.db = orm.setup("easydb", schema)
self.db.connect("127.0.0.1", 8080)
def main():
# Set up the tester.
test = asst3.start_test('orm custom types (Datetime and Coordinate) test',
TOTAL_MARK)
# Import student's code.
import orm
mark = 0
case_number = 1
output = orm.export("easydb", asst3_schema)
with open(STUDENT_FILE, "wt") as f:
f.write(output)
# Start the server.
server = asst3.Server(filename="student_export.txt")
if not server.start("preload.txt"):
print("ERROR: server could not start.\n" \
"HINT: Check the correctness of the exported schema file")
os.remove(STUDENT_FILE)
return
# Set up student's database object and connect to the database.
db = orm.setup("easydb", asst3_schema)
asst3.try_connect(db, server)
# ===== CASE 1: Create a row object with Coordinate field with no error. =====
print("CASE {}: Create a row object with Coordinate field with no error.".
format(case_number))
# This should not raise any error.
try:
toronto = asst3_schema.City(db, name="Toronto", location=(12.3, 12.3))
if toronto.location == (12.3, 12.3):
print("CASE {} PASS".format(case_number))
mark = mark + 1
else:
print("CASE {} FAIL: the field is not set properly".format(
case_number))
except Exception as e:
print("CASE {} FAIL: {}".format(case_number, str(e)))
case_number = case_number + 1
# ===== CASE 2: Create a row object with Coordinate field whose blank is set to True. =====
print(
"CASE {}: Create a row object with Coordinate field whose blank is set to True."
.format(case_number))
# This should not raise any error.
try:
toronto = asst3_schema.City(db, name="Toronto")
if toronto.location == (0.0, 0.0):
print("CASE {} PASS".format(case_number))
mark = mark + 1
else:
print("CASE {} FAIL: the filed is not set properly".format(
case_number))
except Exception as e:
print("CASE {} FAIL: {}".format(case_number, str(e)))
case_number = case_number + 1
# ===== CASE 3: Assign the Coordinate field with wrong type. =====
print("CASE {}: Assign the Coordinate field with wrong type.".format(
case_number))
# This should raise an TypeError or ValueError error.
try:
toronto.location = 3
except TypeError:
print("CASE {} PASS".format(case_number))
mark = mark + 1
except ValueError:
print("CASE {} PASS".format(case_number))
mark = mark + 1
else:
print("CASE {} FAIL: {}".format(case_number,
"expected TypeError or ValueError"))
case_number = case_number + 1
# ===== CASE 4: Assign and save the row object with Coordinate field with invalid value. =====
print(
"CASE {}: Assign and save the row object with Coordinate field with invalid value."
.format(case_number))
# This should raise a ValueError error.
try:
toronto.location = (200.2, 500.3)
toronto.save()
except ValueError:
print("CASE {} PASS".format(case_number))
mark = mark + 1
except Exception as e:
print("CASE {} FAIL: {}".format(case_number, str(e)))
else:
print("CASE {} FAIL: {}".format(case_number, "expected ValueError"))
case_number = case_number + 1
# ===== CASE 5: Save and get the row object with Coordinate field with no error. =====
print(
"CASE {}: Save and get the row object with Coordinate field with no error."
.format(case_number))
# This should not raise any error.
try:
toronto.location = (43.74, -79.37)
toronto.save()
except Exception as e:
print("CASE {} FAIL: {}".format(case_number))
else:
try:
city1 = asst3_schema.City.get(db, 1)
if city1.location == (43.74, -79.37):
print("CASE {} PASS".format(case_number))
mark = mark + 1
else:
print(
"CASE {} FAIL: the saved and received field do not match".
format(case_number))
except Exception as e:
print("CASE {} FAIL: {}".format(case_number, str(e)))
case_number = case_number + 1
# ===== CASE 6: Filter the row object with Coordinate field. =====
print("CASE {}: Filter the row object with Coordinate field.".format(
case_number))
# This should not raise any error.
try:
not_toronto_A = asst3_schema.City(db,
name="NotTorontoA",
location=(43.74, 12.3))
not_toronto_B = asst3_schema.City(db,
name="NotTorontoB",
location=(12.3, -79.37))
not_toronto_A.save()
not_toronto_B.save()
results1 = asst3_schema.City.filter(db, location=(43.74, -79.37))
results2 = asst3_schema.City.filter(db, location__ne=(43.74, -79.37))
# equal case
if results1[0].name == "Toronto" and len(results1) == 1:
# not equal case
if results2[0].name in ["NotTorontoA", "NotTorontoB"
] and results2[1].name in [
"NotTorontoA", "NotTorontoB"
] and len(results2) == 2:
print("CASE {} PASS".format(case_number))
mark = mark + 1
else:
print(
"CASE {} FAIL: the filter result (not equal case) is not correct"
.format(case_number))
else:
print(
"CASE {} FAIL: the filter result (equal case) is not correct".
format(case_number))
except Exception as e:
print("CASE {} FAIL: {}".format(case_number, str(e)))
case_number = case_number + 1
# ===== CASE 7: Create a row object with DateTime field with no error. =====
print("CASE {}: Create a row object with Datetime field with no error.".
format(case_number))
# This should not raise any error.
try:
midterm = asst3_schema.Event(db,
location=toronto,
start=datetime(2019, 10, 29, 16, 0),
end=datetime(2019, 10, 29, 17, 30))
if midterm.start == datetime(2019, 10, 29, 16,
0) and midterm.end == datetime(
2019, 10, 29, 17, 30):
print("CASE {} PASS".format(case_number))
mark = mark + 1
else:
print("CASE {} FAIL: the field is not set properly".format(
case_number))
except Exception as e:
print("CASE {} FAIL: {}".format(case_number, str(e)))
case_number = case_number + 1
# ===== CASE 8: Create a row object with DateTime field whose blank is set to True is set properly. =====
print(
"CASE {}: Create a row object with DateTime field whose blank is set to True."
.format(case_number))
# This should not raise any error.
try:
due = asst3_schema.Event(db,
location=toronto,
start=datetime(2019, 11, 17, 23, 59))
if due.end == datetime.fromtimestamp(0):
print("CASE {} PASS".format(case_number))
mark = mark + 1
else:
print("CASE {} FAIL: the field is not set properly".format(
case_number))
except Exception as e:
print("CASE {} FAIL: {}".format(case_number, str(e)))
case_number = case_number + 1
# ===== CASE 9: Create a row object with DateTime field whose default is set properly (calling a function). =====
print(
"CASE {}: Create a row object with DateTime field whose default is set properly (calling a function)."
.format(case_number))
# This should not raise any error.
try:
event1 = asst3_schema.Event(db,
location=toronto,
end=datetime(2019, 11, 17, 12))
if type(event1.start) is datetime:
print("CASE {} PASS".format(case_number))
mark = mark + 1
else:
print("CASE {} FAIL: the field is not set properly".format(
case_number))
except Exception as e:
print("CASE {} FAIL: {}".format(case_number, str(e)))
case_number = case_number + 1
# ===== CASE 10: Assign the Datetime field with wrong type. =====
print("CASE {}: Assign the Datetime field with wrong type.".format(
case_number))
# This should raise a TypeError error.
try:
event1.start = 3
except TypeError:
print("CASE {} PASS".format(case_number))
mark = mark + 1
except Exception as e:
print("CASE {} FAIL: {}".format(case_number, str(e)))
else:
print("CASE {} FAIL: {}".format(case_number, "expected TypeError"))
case_number = case_number + 1
# ===== CASE 11: Assign the Datetime field with correct type. =====
print("CASE {}: Assign the Datetime field with correct type.".format(
case_number))
# This should not raise any error.
try:
event1.start = datetime(2019, 9, 15, 12)
if event1.start == datetime(2019, 9, 15, 12):
print("CASE {} PASS".format(case_number))
mark = mark + 1
else:
print("CASE {} FAIL: the field is not set properly".format(
case_number))
except Exception as e:
print("CASE {} FAIL: {}".format(case_number, str(e)))
case_number = case_number + 1
# ===== CASE 12: Save and get the row object with Datetime field with no error. =====
print(
"CASE {}: Save and get the row object with Datetime field with no error."
.format(case_number))
# This should not raise any error.
try:
event1.save()
except Exception as e:
print("CASE {} FAIL: {}".format(case_number, str(e)))
else:
# This should not raise any error.
try:
event2 = asst3_schema.Event.get(db, 1)
if event2.start == datetime(2019, 9, 15, 12):
print("CASE {} PASS".format(case_number))
mark = mark + 1
else:
print(
"CASE {} FAIL: the saved and received field do not match".
format(case_number))
except Exception as e:
print("CASE {} FAIL: {}".format(case_number, str(e)))
case_number = case_number + 1
# ===== CASE 13: Filter the row object with Datetime field. =====
print("CASE {}: Filter the row object with Datetime field.".format(
case_number))
# This should not raise any error.
try:
results = asst3_schema.Event.filter(db,
start=datetime(2019, 9, 15, 12))
if (results[0].location.name == "Toronto") and (len(results) == 1):
mark = mark + 1
print("CASE {} PASS".format(case_number))
else:
print("CASE {} FAIL: filter result is not correct".format(
case_number))
except Exception as e:
print("CASE {} FAIL: {}".format(case_number, str(e)))
case_number = case_number + 1
# ===== CASE 14: Count the row object with Datetime field. =====
print("CASE {}: Count the row object with Datetime field.".format(
case_number))
# This should not raise any error.
try:
results = asst3_schema.Event.filter(db,
start__gt=datetime(
2019, 7, 15, 12))
if (results[0].location.name == "Toronto") and (len(results) == 1):
mark = mark + 1
print("CASE {} PASS".format(case_number))
else:
print("CASE {} FAIL: count result is not correct".format(
case_number))
except Exception as e:
print("CASE {} FAIL: {}".format(case_number, str(e)))
test.add_mark(mark)
db.close()
server.end()
os.remove(STUDENT_FILE)
# run.py
from app.constants import APP, cache
from orm import setup
if __name__ == '__main__':
setup()
cache.init_app(APP)
APP.run(debug=True, host='0.0.0.0') # Do not write code after this point
def main():
# Set up the tester.
test = asst3.start_test('orm delete command test', TOTAL_MARK)
# Import student's code.
import orm
mark = 0
case_number = 1
# Start the server.
server = asst3.Server()
server.start("preload.txt")
# Set up student's database object and connect to the database.
db = orm.setup("easydb", asst3_schema)
asst3.try_connect(db, server)
# Create a row object for testing.
james = asst3_schema.User(db,
firstName="James",
lastName="Hartley",
height=180.3,
age=38)
james.pk = 1
james.version = 1
# ===== CASE 1: Delete a row object with no error. =====
print("CASE {}: Delete a row object with no error.".format(case_number))
# This should not raise any error.
try:
james.delete()
except Exception as e:
print("CASE {} FAIL: {}".format(case_number, str(e)))
else:
db.close()
# Dump database rows.
rows = asst3.dump(server, 1)
not_deleted = False
for row in rows:
if row[0] == "1":
not_deleted = True
break
if not_deleted:
print(
"CASE {} FAIL: the deleted row is still on the server".format(
case_number))
else:
print("CASE {} PASS".format(case_number))
mark = mark + 1
db.connect(server.host, server.port)
case_number = case_number + 1
# ===== CASE 2: Delete a row object whose pk is None. =====
print("CASE {}: Delete a row object whose pk is None.".format(case_number))
(mark, result) = asst3.run_test_case(
james.delete, (), case_number, 1, mark, True,
orm.exceptions.PacketError,
True) # This should raise an error other than PacketError.
db.close()
server.end()
test.add_mark(mark)
def main():
# Set up the tester.
test = asst3.start_test('orm basic test', TOTAL_MARK)
# Import student's code.
import orm
import orm.exceptions
mark = 0
case_number = 1
# ===== CASE 1: Default value is not the correct type. =====
print(
"CASE {}: Default value is not the correct type.".format(case_number))
# This should raise an TypeError error.
try:
asst3_schema_bad1 = asst3.load_module('asst3_schema_bad1')
orm.setup("easydb", asst3_schema_bad1)
except TypeError:
print("CASE {} PASS".format(case_number))
mark = mark + 1
except Exception as e:
print("CASE {} FAIL: {}".format(case_number, str(e)))
else:
print("CASE {} FAIL: {}".format(case_number, "expected TypeError"))
case_number = case_number + 1
# ===== CASE 2: Choices value is not the correct type. =====
print(
"CASE {}: Choices value is not the correct type.".format(case_number))
# This should raise an TypeError error.
try:
asst3_schema_bad2 = asst3.load_module('asst3_schema_bad2')
orm.setup("easydb", asst3_schema_bad2)
except TypeError:
print("CASE {} PASS".format(case_number))
mark = mark + 1
except Exception as e:
print("CASE {} FAIL: {}".format(case_number, str(e)))
else:
print("CASE {} FAIL: {}".format(case_number, "expected TypeError"))
case_number = case_number + 1
# ===== CASE 3: Field name contains underscore. =====
print("CASE {}: Field name contains underscore.".format(case_number))
# This should raise an AttributeError error.
try:
asst3_schema_bad3 = asst3.load_module('asst3_schema_bad3')
orm.setup("easydb", asst3_schema_bad3)
except AttributeError:
print("CASE {} PASS".format(case_number))
mark = mark + 1
except Exception as e:
print("CASE {} FAIL: {}".format(case_number, str(e)))
else:
print("CASE {} FAIL: {}".format(case_number,
"expected AttributeError"))
case_number = case_number + 1
# ===== CASE 4: Field name use reserved word. =====
print("CASE {}: Field name use reserved word.".format(case_number))
# This should raise an AttributeError error.
try:
asst3_schema_bad4 = asst3.load_module('asst3_schema_bad4')
orm.setup("easydb", asst3_schema_bad4)
except AttributeError:
print("CASE {} PASS".format(case_number))
mark = mark + 1
except Exception as e:
print("CASE {} FAIL: {}".format(case_number, str(e)))
else:
print("CASE {} FAIL: {}".format(case_number,
"expected AttributeError"))
case_number = case_number + 1
# ===== CASE 5: Setup with a correct schema =====
print("CASE {}: Setup with a correct schema".format(case_number))
# This should not raise any error.
try:
db = orm.setup("easydb", asst3_schema)
except Exception as e:
print("CASE {} FAIL: {}".format(case_number, str(e)))
else:
contain = False
for key in db.__dict__:
# Check if the object saves the inpputed schema by checking if there is a tuple, list, or dict attribute.
if isinstance(db.__dict__[key], (tuple, list, dict)):
if len(db.__dict__[key]) > 0:
contain = True
break
if contain:
print("CASE {} PASS".format(case_number))
mark = mark + 1
else:
print(
"CASE {} FAIL: no tuple, list, or dict is found in the Database object indicating that the inputted schema is saved"
.format(case_number))
case_number = case_number + 1
# ===== CASE 6: Create a row object with missing field. =====
print(
"CASE {}: Create a row object with missing field.".format(case_number))
# This should raise an AttributeError error.
try:
jeffrey = asst3_schema.User(db, firstName="Jeffrey", height=999.9)
except AttributeError:
print("CASE {} PASS".format(case_number))
mark = mark + 1
except Exception as e:
print("CASE {} FAIL: {}".format(case_number, str(e)))
else:
print("CASE {} FAIL: {}".format(case_number,
"expected AttributeError"))
case_number = case_number + 1
# ===== CASE 7: Create a row object with no error. =====
print("CASE {}: Create a row object with no error".format(case_number))
# This should not raise any error.
try:
jeffrey = asst3_schema.User(db,
firstName="Jeffrey",
lastName="Fang",
height=999.9)
except Exception as e:
print("CASE {} FAIL: {}".format(case_number, str(e)))
else:
try:
if jeffrey.firstName == "Jeffrey":
print("CASE {} PASS".format(case_number))
mark = mark + 1
else:
print(
"CASE {} FAIL: the stored field of the row object is not correct"
.format(case_number))
except Exception as e:
print(
"CASE {} FAIL: while accessing the field of the row object: {}"
.format(case_number, str(e)))
case_number = case_number + 1
# ===== CASE 8: Create object with a foreign key. =====
print("CASE {}: Create object with a foreign key.".format(case_number))
# This should not raise any error.
try:
account1 = asst3_schema.Account(db, user=jeffrey)
except Exception as e:
print("CASE {} FAIL: {}".format(case_number, str(e)))
else:
try:
if account1.user.lastName == "Fang":
print("CASE {} PASS".format(case_number))
mark = mark + 1
else:
print(
"CASE {} FAIL: the field of stored foreign key field of the row object is not correct"
.format(case_number))
except Exception as e:
print(
"CASE {} FAIL: while accessing the field of the row object: {}"
.format(case_number, str(e)))
case_number = case_number + 1
# ==== CASE 9: Check if the field with blank set to True is set properly. =====
print(
"CASE {}: Check if the field with blank set to True is set properly.".
format(case_number))
# This should not raise any error.
try:
if jeffrey.age == 0:
print("CASE {} PASS".format(case_number))
mark = mark + 1
else:
print("CASE {} FAIL: the field is not set properly".format(
case_number))
except Exception as e:
print("CASE {} FAIL: while accessing the field of the row object: {}".
format(case_number, str(e)))
case_number = case_number + 1
# ==== CASE 10: Check if the field with default is set properly. =====
print("CASE {}: Check if the field with default is set properly.".format(
case_number))
# This should not raise any error.
try:
if account1.type == "Normal":
print("CASE {} PASS".format(case_number))
mark = mark + 1
else:
print("CASE {} FAIL: the field is not set properly".format(
case_number))
except Exception as e:
print("CASE {} FAIL: while accessing the field of the row object: {}".
format(case_number, str(e)))
case_number = case_number + 1
# ===== CASE 11: Set the field value to wrong type. =====
print("CASE {}: Set the field value to wrong type.".format(case_number))
# This should raise a TypeError error.
try:
jeffrey.age = 3.5
except TypeError:
print("CASE {} PASS".format(case_number))
mark = mark + 1
except Exception as e:
print("CASE {} FAIL: {}".format(case_number, str(e)))
else:
print("CASE {} FAIL: {}".format(case_number, "expected TypeError"))
case_number = case_number + 1
# ===== CASE 12: Set a float field with int. =====
print("CASE {}: Set a float field with int.".format(case_number))
# This should not raise any error.
try:
jeffrey.height = 50
except Exception as e:
print("CASE {} FAIL: {}".format(case_number, str(e)))
else:
if isinstance(jeffrey.height, float) and (jeffrey.height == 50.0):
print("CASE {} PASS".format(case_number))
mark = mark + 1
else:
print(
"CASE {} FAIL: the field is not set properly (maybe field is not a float anymore?)"
.format(case_number))
case_number = case_number + 1
# ===== CASE 13: Set the field value whose blank is True to None. =====
print("CASE {}: Set the field value whose blank is True to None.".format(
case_number))
# This should not raise any error.
try:
jeffrey.height = None
except Exception as e:
print("CASE {} FAIL: {}".format(case_number, str(e)))
else:
if jeffrey.height == 0.0:
print("CASE {} PASS".format(case_number))
mark = mark + 1
else:
print(
"CASE {} FAIL: the field is not set properly (should set to default value of the type)"
.format(case_number))
case_number = case_number + 1
# ===== CASE 14: Set the field value whose blank is False to None. =====
print("CASE {}: Set the field value whose blank is False to None.".format(
case_number))
# This should raise an error.
try:
jeffrey.firstName = None
except:
print("CASE {} PASS".format(case_number))
mark = mark + 1
else:
print("CASE {} FAIL: {}".format(case_number, "expected an error"))
case_number = case_number + 1
# ===== CASE 15: Export =====
print("CASE {}: Export".format(case_number))
# This should not raise any error.
try:
output = orm.export("easydb", asst3_schema)
except Exception as e:
print("CASE {} FAIL: {}".format(case_number, str(e)))
else:
# Read the solution.
with open(tester.datapath('export.txt', 'asst3'), 'r') as file:
data = file.read()
# Check if the format is correct.
if output == data:
print("CASE {} PASS".format(case_number))
mark = mark + 1
else:
print(
"CASE {} FAIL: the format is not correct".format(case_number))
test.add_mark(mark)
def main():
# Set up the tester.
test = asst3.start_test('orm save command test', TOTAL_MARK)
# Import student's code.
import orm
mark = 0
case_number = 1
# Start the server.
server = asst3.Server()
server.start()
# Set up student's database object and connect to the database.
db = orm.setup("easydb", asst3_schema)
asst3.try_connect(db, server)
# Create some row objects for testing.
joe = asst3_schema.User(db, firstName="Joe", lastName="Harris", age=32)
jeffrey = asst3_schema.User(db, firstName="Jeffrey", lastName="Fang", height=999.9)
alice = asst3_schema.User(db, firstName="Alice", lastName="Stuart", age=18)
account1 = asst3_schema.Account(db, user=alice, type="Yes")
account2 = asst3_schema.Account(db, user=jeffrey, type="Special")
# ===== CASE 1: Save a row object whose field is not in choices. =====
print("CASE {}: Save a row object whose field is not in choices.".format(case_number))
(mark, result) = asst3.run_test_case(account1.save, (), case_number, 1, mark, True, ValueError) # This should raise a ValueError error.
case_number = case_number + 1
# ===== CASE 2: Save a new row object to the database with no error (insert). =====
print("CASE {}: Save a new row object to the database with no error (insert).".format(case_number))
# This should not raise any error.
try:
joe.save()
except Exception as e:
print("CASE {} FAIL: {}".format(case_number, str(e)))
else:
db.close()
# Dump database rows.
rows = asst3.dump(server, 1)
if [str(1), str(1), "Joe", "Harris", "0", "32"] in rows or [str(2), str(1), "Joe", "Harris", "0", "32"] in rows:
print("CASE {} PASS".format(case_number))
mark = mark + 1
else:
print("CASE {} FAIL: the saved row cannot be found on the server".format(case_number))
db.connect(server.host, server.port)
case_number = case_number + 1
# ===== CASE 3: Cascade save new row objects to the database with no error (insert). =====
print("CASE {}: Cascade save new row objects to the database with no error (insert).".format(case_number))
# This should not raise any error.
try:
account2.save()
except Exception as e:
print("CASE {} FAIL: {}".format(case_number, str(e)))
else:
db.close()
# Dump database rows.
client = asst3.Client(server)
user_rows = client.dump(1)
account_rows = client.dump(2)
client.close()
if ([str(2), str(1), "Jeffrey", "Fang", "999.9", "0"] in user_rows or [str(3), str(1), "Jeffrey", "Fang", "999.9", "0"] in user_rows) \
and ([str(1), str(1), "2", "Special", "0"] in account_rows or [str(2), str(1), "2", "Special", "0"] in account_rows \
or [str(1), str(1), "3", "Special", "0"] in account_rows or [str(2), str(1), "3", "Special", "0"] in account_rows):
print("CASE {} PASS".format(case_number))
mark = mark + 1
else:
print("CASE {} FAIL: the saved row cannot be found on the server".format(case_number))
db.connect(server.host, server.port)
case_number = case_number + 1
# ===== CASE 4: Save a existing row object to the database (update). =====
joe.height = 663.1
print("CASE {}: Save a existing row object to the database (update).".format(case_number))
# This should not raise any error.
try:
joe.save()
except Exception as e:
print("CASE {} FAIL: {}".format(case_number, str(e)))
else:
db.close()
# Dump database rows.
rows = asst3.dump(server, 1)
if [str(1), str(2), "Joe", "Harris", "663.1", "32"] in rows or [str(2), str(2), "Joe", "Harris", "663.1", "32"] in rows:
print("CASE {} PASS".format(case_number))
mark = mark + 1
else:
print("CASE {} FAIL: the saved row cannot be found on the server".format(case_number))
db.connect(server.host, server.port)
case_number = case_number + 1
# ===== CASE 5: Non-atomic save (non-atomic update) =====
joe.age = 50
print("CASE {}: Non-atomic save (non-atomic update)".format(case_number))
# This may raise a TransactionAbort error.
try:
joe.save()
except orm.TransactionAbort:
print("CASE {} PASS".format(case_number))
mark = mark + 1
except Exception as e:
print("CASE {} FAIL: {}".format(case_number, str(e)))
else:
db.close()
# Dump database rows.
rows = asst3.dump(server, 1)
if [str(1), str(3), "Joe", "Harris", "663.1", "50"] in rows or [str(2), str(3), "Joe", "Harris", "663.1", "50"] in rows:
print("CASE {} PASS".format(case_number))
mark = mark + 1
else:
print("CASE {} FAIL: the saved row cannot be found on the server".format(case_number))
db.connect(server.host, server.port)
case_number = case_number + 1
# ===== CASE 6: Row object's id does not exist in the database anymore (invalid reference). =====
jeffrey.pk = 888
print("CASE {}: Row object's id does not exist in the database anymore (invalid reference).".format(case_number))
# This should raise an InvalidReference error.
try:
account2.save()
except orm.exceptions.InvalidReference:
if jeffrey.pk is None:
mark = mark + 1
print("CASE {} PASS".format(case_number))
else:
print("CASE {} FAIL: pk is not set back to None".format(case_number))
except Exception as e:
print("CASE {} FAIL: {}".format(case_number, str(e)))
else:
print("CASE {} FAIL: {}".format(case_number, "expected InvalidReference"))
db.close()
server.end()
test.add_mark(mark)
def main():
# Set up the tester.
test = asst3.start_test('orm filter command test', TOTAL_MARK)
# Import student's code.
import orm
mark = 0
case_number = 1
# Start the server.
server = asst3.Server()
server.start("preload.txt")
# Set up student's database object and connect to the database.
db = orm.setup("easydb", asst3_schema)
asst3.try_connect(db, server)
# Create a row object for testing.
charlie = asst3_schema.User(db, firstName="Charlie", lastName="George", height=180.3, age=26)
alice = asst3_schema.User(db, firstName="Alice", lastName="Harris", height=163.2, age=21)
alice.pk = 3
alice.version = 1
# ===== CASE 1: Filter with no argument with no error. =====
print("CASE {}: Filter with no argument with no error.".format(case_number))
# This should not raise any error.
try:
results = asst3_schema.User.filter(db)
if len(results) == 3 and results[0].age in [38, 48, 21]:
print("CASE {} PASS".format(case_number))
mark = mark + 1
else:
print("CASE {} FAIL: filter result is not correct".format(case_number))
except Exception as e:
print("CASE {} FAIL {}".format(case_number, str(e)))
case_number = case_number + 1
# ===== CASE 2: Filter with equal operator with no error. =====
print("CASE {}: Filter with equal operator with no error.".format(case_number))
# This should not raise any error.
try:
results = asst3_schema.User.filter(db, age=21)
if (results[0].height == 163.2) and (len(results) == 1):
print("CASE {} PASS".format(case_number))
mark = mark + 1
else:
print("CASE {} FAIL: filter result is not correct".format(case_number))
except Exception as e:
print("CASE {} FAIL {}".format(case_number, str(e)))
case_number = case_number + 1
# ===== CASE 3: Filter with not eqaul operator with no error. =====
print("CASE {}: Filter with not eqaul operator with no error.".format(case_number))
# This should not raise any error.
try:
results = asst3_schema.Account.filter(db, balance__ne=89.1)
if len(results) == 4 and results[0].type == "Normal":
print("CASE {} PASS".format(case_number))
mark = mark + 1
else:
print("CASE {} FAIL: filter result is not correct".format(case_number))
except Exception as e:
print("CASE {} FAIL {}".format(case_number, str(e)))
case_number = case_number + 1
# ===== CASE 4: Filter with greater than operator with no error. =====
print("CASE {}: Filter with greater than operator with no error.".format(case_number))
# This should not raise any error.
try:
results = asst3_schema.Account.filter(db, balance__gt=89.1)
if len(results) == 2 and results[0].type == "Normal":
print("CASE {} PASS".format(case_number))
mark = mark + 1
else:
print("CASE {} FAIL: filter result is not correct".format(case_number))
except Exception as e:
print("CASE {} FAIL {}".format(case_number, str(e)))
case_number = case_number + 1
# ===== CASE 5: Filter with less than operator with no error. =====
print("CASE {}: Filter with less than operator with no error.".format(case_number))
# This should not raise any error.
try:
results = asst3_schema.Account.filter(db, balance__lt=210.3)
if len(results) == 3 and results[0].type == "Normal":
print("CASE {} PASS".format(case_number))
mark = mark + 1
else:
print("CASE {} FAIL: filter result is not correct".format(case_number))
except Exception as e:
print("CASE {} FAIL: {}".format(case_number, str(e)))
case_number = case_number + 1
# ==== CASE 6: Filter with a foreign key object. =====
print("CASE {}: Filter with a foreign key object.".format(case_number))
# This should not raise any error.
try:
results = asst3_schema.Account.filter(db, user=alice)
if len(results) == 3 and results[0].user.firstName == "Alice":
print("CASE {} PASS".format(case_number))
mark = mark + 1
else:
print("CASE {} FAIL: filter result is not correct".format(case_number))
except Exception as e:
print("CASE {} FAIL: {}".format(case_number, str(e)))
case_number = case_number + 1
# ==== CASE 7: Filter with a foreign key pk value. =====
print("CASE {}: Filter with a foreign key pk value.".format(case_number))
# This should not raise any error.
try:
results = asst3_schema.Account.filter(db, user=3)
if len(results) == 3 and results[0].user.firstName == "Alice":
print("CASE {} PASS".format(case_number))
mark = mark + 1
else:
print("CASE {} FAIL: filter result is not correct".format(case_number))
except Exception as e:
print("CASE {} FAIL: {}".format(case_number, str(e)))
case_number = case_number + 1
# ===== CASE 8: Filter with a foreign key object whose pk is None. =====
print("CASE {}: Filter with a foreign key object whose pk is None.".format(case_number))
# This should raise an error.
try:
results = asst3_schema.Account.filter(db, user=charlie)
except:
print("CASE {} PASS".format(case_number))
mark = mark + 1
else:
print("CASE {} FAIL: {}".format(case_number, "expected an error"))
db.close()
server.end()
test.add_mark(mark)
def main():
# Set up the tester.
test = asst3.start_test('orm count command test', TOTAL_MARK)
# Import student's code.
import orm
mark = 0
case_number = 1
# Start the server.
server = asst3.Server()
server.start("preload.txt")
# Set up student's database object and connect to the database.
db = orm.setup("easydb", asst3_schema)
asst3.try_connect(db, server)
# ===== CASE 1: Count with no argument with no error. =====
print("CASE {}: Count with no argument with no error.".format(case_number))
# This should not raise any error.
try:
result = asst3_schema.Account.count(db)
if result == 4:
print("CASE {} PASS".format(case_number))
mark = mark + 1
else:
print("CASE {} FAIL: count result is not correct".format(case_number))
except Exception as e:
print("CASE {} FAIL: {}".format(case_number, str(e)))
case_number = case_number + 1
# ===== CASE 2: Count with an argument with no error. =====
print("CASE {}: Count with an argument with no error.".format(case_number))
# This should not raise any error.
try:
result = asst3_schema.Account.count(db, balance__gt=89.1)
if result == 2:
print("CASE {} PASS".format(case_number))
mark = mark + 1
else:
print("CASE {} FAIL: count result is not correct".format(case_number))
except Exception as e:
print("CASE {} FAIL: {}".format(case_number, str(e)))
case_number = case_number + 1
# ==== CASE 3: Count with an existing pk. =====
print("CASE {}: Count with pk.".format(case_number))
# This should not raise any error.
try:
result = asst3_schema.Account.count(db, pk=3)
if result == 1:
print("CASE {} PASS".format(case_number))
mark = mark + 1
else:
print("CASE {} FAIL: count result is not correct".format(case_number))
except Exception as e:
print("CASE {} FAIL: {}".format(case_number, str(e)))
case_number = case_number + 1
# ==== CASE 4: Count with an non-existing pk. =====
print("CASE {}: Count with pk.".format(case_number))
# This should not raise any error.
try:
result = asst3_schema.Account.count(db, pk=100)
if result == 0:
print("CASE {} PASS".format(case_number))
mark = mark + 1
else:
print("CASE {} FAIL: count result is not correct".format(case_number))
except Exception as e:
print("CASE {} FAIL: {}".format(case_number, str(e)))
db.close()
server.end()
test.add_mark(mark)
