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 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_add_foreign_key(self):
"""Tests adding foreign keys."""
table = Table(table_name="table1", primary_key="pk1")
table.add_foreign_key(
ForeignKey(
name="fk1",
from_table="table1",
from_keys="col1",
to_table="table2",
to_keys="col2",
)
)
table.add_foreign_key(
name="fk2", from_keys="col3", to_table="table3", to_keys="col4"
)
fk = table.foreign_keys["fk1"]
self.assertEquals("table1", fk.from_table)
fk = table.get_foreign_key("fk2")
self.assertEqual("table1", fk.from_table)
self.assertEqual(["col3"], fk.from_keys)
self.assertEqual("table3", fk.to_table)
self.assertEqual(["col4"], fk.to_keys)
fk = table.get_foreign_key("fkx")
self.assertIsNone(fk)
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
