def test_del_column(tmpdir):
dbm = DbManager(tmpdir)
dbm.create_db('test_db')
dbm.use_db('test_db')
test_schema = {'name': 'str', 'age': 'int', 'employed': 'bool'}
dbm.create_table("test_table", test_schema)
path_db = os.path.join(tmpdir, "test_db")
path_table = os.path.join(path_db, "test_table")
#insert two rows in the current table
test_row1 = {'name': 'EchipaRacheta', 'age': '24', 'employed': "False"}
dbm.insert_row("test_table", test_row1)
test_row2 = {'name': 'EchipaRacheta2', 'age': '25', 'employed': "False"}
dbm.insert_row("test_table", test_row2)
#remove a column for this test
dbm.del_column("test_table", "age")
updated_schema = dbm.get_table_schema("test_table")
#check if new sschema has been updated accordingly
assert not 'age' in updated_schema.keys()
del test_schema['age']
assert test_schema == updated_schema
#get list of rows
rows = dbm.scan_rows('test_table')
for row in rows:
path_column = os.path.join(path_table, str(row['_rowid']))
check_path = os.path.join(path_column, 'age:bool')
assert not os.path.exists(check_path)
assert not "age" in row.keys()
dbm.delete_table('test_table')
def test_get_table_schema(tmpdir):
dbm = DbManager(tmpdir)
dbm.create_db('test_db')
dbm.use_db('test_db')
test_schema = {'name': 'str', 'age': 'int', 'employed': 'bool'}
dbm.create_table('table_test', test_schema)
schema = dbm.get_table_schema('table_test')
assert schema == test_schema
def test_from_csv(tmpdir):
dbm = DbManager(tmpdir)
input_path = os.path.join(tmpdir, "test_db.csv")
db_testPath = os.path.join(tmpdir, "test_db")
table1_path = os.path.join(db_testPath, "test_table1")
table2_path = os.path.join(db_testPath, "test_table2")
record1 = {'name': 'EchipaRacheta', 'age': '24', 'employed': 'False'}
record2 = {'name': 'EchipaRacheta2', 'age': '25', 'employed': 'False'}
record3 = {'description': 'descrierea dummy ', 'isMember': 'True'}
record4 = {'description': 'descrierea dummy 2', 'isMember': 'False'}
record_list = [record1, record2, record3, record4]
input_content = """test_table1,name:str,age:int,employed:bool
test_table1,0,age,24
test_table1,0,employed,False
test_table1,0,name,EchipaRacheta
test_table1,1,age,25
test_table1,1,employed,False
test_table1,1,name,EchipaRacheta2
test_table2,description:str,isMember:bool
test_table2,0,description,descrierea dummy
test_table2,0,isMember,True
test_table2,1,description,descrierea dummy 2
test_table2,1,isMember,False
"""
f = open(input_path, 'w')
f.write(input_content)
f.close()
dbm.from_csv(input_path)
assert os.path.exists(db_testPath)
assert os.path.isdir(db_testPath)
assert os.path.exists(table1_path)
assert os.path.exists(table2_path)
assert os.path.isdir(table1_path)
assert os.path.isdir(table2_path)
dbm = DbManager(tmpdir)
dbm.use_db('test_db')
schema1 = dbm.get_table_schema('test_table1')
schema2 = dbm.get_table_schema('test_table2')
#check schema
assert schema1 == {'name': 'str', 'age': 'int', 'employed': 'bool'}
assert schema2 == {'description': 'str', 'isMember': 'bool'}
#check rows
listOfTables = dbm.get_tables('test_db')
for table in listOfTables:
records_table1 = dbm.scan_rows(table)
for record in records_table1:
del record['_rowid']
assert record in record_list
def test_create_table(tmpdir):
dbm = DbManager(tmpdir)
dbm.create_db('test_db')
dbm.use_db('test_db')
db_path = os.path.join(tmpdir, "test_db")
table_path = os.path.join(db_path, "test_table")
schema_path = os.path.join(table_path, ".schema")
test_schema = {'name': 'str', 'age': 'int', 'employed': 'bool'}
dbm.create_table("test_table", test_schema)
schema_test = dbm.get_table_schema("test_table")
assert os.path.exists(table_path)
assert os.path.isdir(table_path)
assert os.path.exists(schema_path)
assert os.path.isfile(schema_path)
assert schema_test == test_schema
dbm.delete_table('test_table')
def test_get_tables(tmpdir):
dbm = DbManager(tmpdir)
dbm.create_db('test_db')
dbm.use_db('test_db')
test_schema = {'name': 'str', 'age': 'int', 'employed': 'bool'}
dbm.create_table("test_table", test_schema)
test_schema2 = {'name': 'str', 'description': 'str', 'isMale': 'bool'}
dbm.create_table("test_table2", test_schema2)
test_schema3 = {'name': 'str', 'age': 'int'}
dbm.create_table("test_table3", test_schema3)
existing_schemas = [test_schema, test_schema2, test_schema3]
tables_list = dbm.get_tables("test_db")
for table in tables_list:
current_schema = dbm.get_table_schema(table)
assert current_schema in existing_schemas
dbm.delete_db('test_db')
def test_add_column(tmpdir):
dbm = DbManager(tmpdir)
dbm.create_db('test_db')
dbm.use_db('test_db')
test_schema = {'name': 'str', 'age': 'int', 'employed': 'bool'}
dbm.create_table("test_table", test_schema)
path_db = os.path.join(tmpdir, "test_db")
path_table = os.path.join(path_db, "test_table")
# #insert two dummy rows in the current table
test_row1 = {'name': 'EchipaRacheta', 'age': '24', 'employed': "False"}
dbm.insert_row("test_table", test_row1)
test_row2 = {'name': 'EchipaRacheta2', 'age': '25', 'employed': "False"}
dbm.insert_row("test_table", test_row2)
# add column test
dbm.add_column("test_table", "test_column", "bool")
updated_schema = dbm.get_table_schema('test_table')
#check if schema is updated
assert "test_column" in updated_schema.keys()
assert updated_schema['test_column'] == 'bool'
del updated_schema['test_column']
assert updated_schema == test_schema
#check if a new file is created for the new column recently added
rows = dbm.scan_rows('test_table')
for row in rows:
path_column = os.path.join(path_table, str(row['_rowid']))
check_path = os.path.join(path_column, 'test_column.bool')
assert os.path.exists(check_path)
assert os.path.isfile(check_path)
assert "test_column" in row.keys()
assert row["test_column"] == ''
dbm.delete_table('test_table')
def test_to_csv(tmpdir):
dbm = DbManager(tmpdir)
dbm.create_db('test_db')
dbm.use_db('test_db')
csv_path = os.path.join(tmpdir, "db.csv")
test_schema = {'name': 'str', 'age': 'int', 'employed': 'bool'}
dbm.create_table("test_table1", test_schema)
test_row1 = {'name': 'EchipaRacheta', 'age': '24', 'employed': "False"}
dbm.insert_row("test_table1", test_row1)
test_row2 = {'name': 'EchipaRacheta2', 'age': '25', 'employed': "False"}
dbm.insert_row("test_table1", test_row2)
test_schema = {'description': 'str', 'isMember': 'bool'}
dbm.create_table("test_table2", test_schema)
test_row3 = {'description': 'descrierea dummy ', 'isMember': 'True'}
dbm.insert_row("test_table2", test_row3)
test_row4 = {'description': 'descrierea dummy 2', 'isMember': "False"}
dbm.insert_row("test_table2", test_row4)
dbm.to_csv(csv_path)
tables_created = {}
table_schemas = {}
inserted_testRows = [test_row1, test_row2, test_row3, test_row4]
assert os.path.exists(csv_path)
last_table = ""
fw = open(csv_path, "r")
isSchema = True
records = {}
#check schema
for line in fw:
if isSchema:
line = line.replace('\n', '')
current_schema = {}
schema_str = line.split(',')
table_name = schema_str[0]
isSchema = False
for i in range(1, len(schema_str)):
column_name, column_type = schema_str[i].split(':')
current_schema[column_name] = column_type
test_schema = dbm.get_table_schema(table_name)
assert current_schema == test_schema
elif line == "\n":
isSchema = True
currentRow = {}
else:
#print(line)
line.replace('\n', '')
print(line)
line = line.split(',')
if line != ['']:
db_rowid = line[0] + '-' + line[1]
if db_rowid in records.keys():
records[db_rowid] += ';' + (line[2] + '-' +
line[3].replace('\n', ''))
else:
records[db_rowid] = line[2] + '-' + line[3].replace(
'\n', '')
# check if the records are exactly the same
for key in records.keys():
row = {}
content = records[key].split(';')
for column in content:
row[column.split('-')[0]] = column.split('-')[1]
print(row)
assert row in inserted_testRows
dbm.delete_db('test_db')
