def test_valid_database(self):
"""Tests a good database to make sure there are no false positives."""
good_db = Database(database_name="good_db")
table1 = Table(
table_name="table1",
primary_key=["col1", "col2"],
shard_key=ShardKey(shard_keys="col1", number_shards=128),
)
table1.add_column(Column(column_name="col1", column_type="INT"))
table1.add_column(Column(column_name="col2", column_type="INT"))
good_db.add_table(table1)
table2 = Table(
table_name="table2",
primary_key=["col3", "col4"],
shard_key=ShardKey(shard_keys="col3", number_shards=128),
)
table2.add_foreign_key(
from_keys=["col3", "col4"],
to_table="table1",
to_keys=["col1", "col2"],
)
table2.add_column(Column(column_name="col3", column_type="INT"))
table2.add_column(Column(column_name="col4", column_type="INT"))
good_db.add_table(table2)
dv = DatabaseValidator(good_db)
results = dv.validate()
self.assertTrue(results.is_valid)
self.assertEqual([], results.issues)
def get_complex_db():
"""
Returns a more complex database with two tables and keys for testing.
:return: Database with two tables and keys.
:rtype: Database
"""
database = Database(database_name="database2")
table1 = Table(table_name="table1",
primary_key="col1",
shard_key=ShardKey("col1", 128))
table1.add_column(Column(column_name="col1", column_type="INT"))
table1.add_column(Column(column_name="Col2", column_type="DOUBLE"))
table1.add_column(Column(column_name="COL3", column_type="FLOAT"))
database.add_table(table1)
table2 = Table(table_name="table2",
primary_key=["col4", "Col5"],
shard_key=ShardKey(["col4", "Col5"], 96))
table2.add_column(Column(column_name="col4", column_type="VARCHAR(0)"))
table2.add_column(Column(column_name="Col5", column_type="DATE"))
table2.add_column(Column(column_name="COL6", column_type="BOOL"))
database.add_table(table2)
table2.add_foreign_key(from_keys="Col5",
to_table="table1",
to_keys="COL3")
table1.add_relationship(
to_table="table2",
conditions='("table1"."col1" == "table2."COL6")')
return database
def test_create_excel(self):
"""Test writing to Excel. Only test is existance. Checks shoudl be made for validity."""
database = Database(database_name="xdb")
table = Table(table_name="table1",
schema_name="s1",
primary_key="column_1",
shard_key=ShardKey("column_1", 128))
table.add_column(Column(column_name="column_1", column_type="INT"))
table.add_column(Column(column_name="column_2", column_type="DOUBLE"))
table.add_column(Column(column_name="column_3", column_type="FLOAT"))
database.add_table(table)
table = Table(table_name="table2",
schema_name="s1",
primary_key="column_1")
table.add_column(Column(column_name="column_1", column_type="INT"))
table.add_column(Column(column_name="column_2",
column_type="DATETIME"))
table.add_column(Column(column_name="column_3", column_type="BOOL"))
table.add_column(Column(column_name="column_4", column_type="DOUBLE"))
table.add_foreign_key(from_keys="column_1",
to_table="table_1",
to_keys="column_1")
table.add_relationship(to_table="table1",
conditions="table2.column_4 = table1.column_2")
database.add_table(table)
writer = XLSWriter()
writer.write_database(database, "test_excel")
def test_with_csvfile(self):
"""test the tsload writer when the csv exists"""
# todo Create the csv file.
database = Database(database_name="xdb")
table = Table(
table_name="table1",
schema_name="s1",
primary_key="column_1",
shard_key=ShardKey("column_1", 128),
)
table.add_column(Column(column_name="column_1", column_type="INT"))
table.add_column(Column(column_name="column_2", column_type="DOUBLE"))
table.add_column(Column(column_name="column_3", column_type="FLOAT"))
table.add_column(Column(column_name="column_3", column_type="DATE"))
database.add_table(table)
table = Table(
table_name="table2",
schema_name="s1",
primary_key="column_1",
shard_key=ShardKey("column_1", 128),
)
table.add_column(Column(column_name="column_1", column_type="INT"))
table.add_column(Column(column_name="column_2", column_type="FLOAT"))
table.add_column(Column(column_name="column_3", column_type="DOUBLE"))
database.add_table(table)
table = Table(
table_name="table3",
schema_name="s1",
primary_key="column_1",
shard_key=ShardKey("column_1", 128),
)
table.add_column(Column(column_name="column_1", column_type="INT"))
table.add_column(Column(column_name="column_2", column_type="FLOAT"))
table.add_column(Column(column_name="column_3", column_type="VARCHAR"))
database.add_table(table)
tsload_writer = TsloadWriter()
tsload_writer.write_tsloadcommand(database, "tsloadwriter_test")
with open("tsloadwriter_test", "r") as infile:
line = infile.readline()
self.assertTrue(line.startswith("tsload "))
self.assertTrue(line.index('--target_database "xdb"') > 0)
self.assertTrue(line.index('--target_schema "s1"'))
def _read_tables_from_workbook(self):
"""
Reads the databases and tables from Excel. These are used to populate from the remaining sheets.
"""
# "Tables": ["Database", "Schema", "Table", "Updated", "Update Type", "# Rows", "# Columns",
# "Primary Key", "Shard Key", "# Shards", "RLS Column"],
table_sheet = self.workbook.sheet_by_name("Tables")
indices = self.indices["Tables"]
for row_count in range(1, table_sheet.nrows):
row = table_sheet.row_values(rowx=row_count, start_colx=0)
database_name = row[indices["Database"]]
database = self.databases.get(database_name, None)
if database is None:
database = Database(database_name=database_name)
self.databases[database_name] = database
pk = row[indices["Primary Key"]].strip()
if pk == "":
pk = None
else:
pk = [x.strip() for x in pk.split(",")]
sk_name = row[indices["Shard Key"]].strip()
sk_nbr_shards = row[indices["# Shards"]]
if (sk_name == "" and sk_nbr_shards != "") or (
sk_name != "" and sk_nbr_shards == ""
):
eprint(
"ERROR: %s need to provide both a shard key name and number of shards."
% row[indices["Table"]]
)
if sk_name == "":
sk = None
else:
sk = [x.strip() for x in sk_name.split(",")]
shard_key = None
if sk_name != "" and sk_nbr_shards != "":
shard_key = ShardKey(
shard_keys=sk, number_shards=sk_nbr_shards
)
table = Table(
table_name=row[indices["Table"]],
schema_name=row[indices["Schema"]],
primary_key=pk,
shard_key=None,
)
database.add_table(table)
def test_add_and_drop_sk(self):
"""Tests adding / dropping a column from a table."""
dc = DDLCompare()
db1 = Database(database_name="database1")
db2 = Database(database_name="database2")
t1 = Table(table_name="table1", shard_key=ShardKey(shard_keys="column1", number_shards=16))
db1.add_table(t1)
t2 = Table(table_name="table1")
db2.add_table(t2)
diff1, diff2 = dc.compare_databases(db1=db1, db2=db2)
self.assertTrue(type(diff1[0] is ShardKeyDroppedDifference))
self.assertEqual(diff1[0].table_name, "table1")
self.assertTrue(type(diff2[0] is ShardKeyAddedDifference))
self.assertEqual(diff2[0].table_name, "table1")