def test_end_to_end(engine, schema, create_table, if_row_exists, df_expected):
# config
# dtype for index for MySQL... (can't have flexible text length)
dtype = {
'profileid': VARCHAR(10)
} if 'mysql' in engine.dialect.dialect_description else None
table_name = TableNames.END_TO_END
# common kwargs for every time we use the upsert_or_aupsert function
common_kwargs = dict(if_row_exists=if_row_exists,
dtype=dtype,
table_name=table_name)
read_table = lambda: read_example_table_from_db(
engine=engine, schema=schema, table_name=table_name).sort_index()
# 1. create table
upsert_or_aupsert(con=engine,
schema=schema,
df=df,
create_table=True,
**common_kwargs)
pd.testing.assert_frame_equal(df, read_table())
# 2. insert update/ignore
upsert_or_aupsert(con=engine,
schema=schema,
df=df2,
create_table=create_table,
**common_kwargs)
pd.testing.assert_frame_equal(df_expected, read_table())
def test_get_nb_rows(engine, schema):
# config
table_name = TableNames.WITH_YIELD
nb_rows, chunksize = 20, 3
nb_last_chunk = nb_rows % chunksize
nb_chunks = math.ceil(nb_rows / chunksize)
# MySQL does not want flexible text length in indices/PK
dtype = {
'profileid': VARCHAR(10)
} if 'mysql' in engine.dialect.dialect_description else None
df = _TestsExampleTable.create_example_df(nb_rows=nb_rows)
# iterate over upsert results
# make sure we can extract the number of updated rows and that it is correct
iterator = upsert(con=engine,
df=df,
table_name=table_name,
if_row_exists='update',
schema=schema,
chunksize=chunksize,
dtype=dtype,
yield_chunks=True)
for ix, result in enumerate(iterator):
assert result.rowcount == (chunksize
if ix != nb_chunks - 1 else nb_last_chunk)
# verify the inserted data is as expected
# we sort the index for MySQL
df_db = read_example_table_from_db(engine=engine,
schema=schema,
table_name=table_name)
pd.testing.assert_frame_equal(df.sort_index(), df_db.sort_index())
def test_create_table(engine, schema):
# dtype for index for MySQL... (can't have flexible text length)
dtype = {'profileid':VARCHAR(10)} if 'mysql' in engine.dialect.dialect_description else None
drop_table_if_exists(engine=engine, schema=schema, table_name=table_name)
upsert(engine=engine, schema=schema, df=df, if_row_exists='update', dtype=dtype, **default_args)
df_db = read_example_table_from_db(engine=engine, schema=schema, table_name=table_name)
pd.testing.assert_frame_equal(df, df_db)
def test_upsert_ignore(engine, schema):
dtype = {'profileid':VARCHAR(10)} if 'mysql' in engine.dialect.dialect_description else None
drop_table_if_exists(engine=engine, schema=schema, table_name=table_name)
for _df in (df, df3):
upsert(engine=engine, schema=schema, df=_df, if_row_exists='ignore', dtype=dtype, **default_args)
df_db = read_example_table_from_db(engine=engine, schema=schema, table_name=table_name)
expected = pd.concat((df, df3.tail(1)), axis=0)
pd.testing.assert_frame_equal(expected, df_db)
def insert_chunks(engine, schema, chunksize, nb_rows):
df = _TestsExampleTable.create_example_df(nb_rows=nb_rows)
# MySQL does not want flexible text length in indices/PK
dtype = {
'profileid': VARCHAR(10)
} if 'mysql' in engine.dialect.dialect_description else None
upsert_or_aupsert(schema=schema,
table_name=TableNames.VARIOUS_CHUNKSIZES,
df=df,
chunksize=chunksize,
con=engine,
if_row_exists='update',
dtype=dtype)
df_db = read_example_table_from_db(
engine=engine, schema=schema, table_name=TableNames.VARIOUS_CHUNKSIZES)
# sort index (for MySQL...)
pd.testing.assert_frame_equal(df.sort_index(), df_db.sort_index())
def insert_chunks(engine, schema, chunksize, nb_rows):
df = _TestsExampleTable.create_example_df(nb_rows=nb_rows)
table_name = f'test_insert_chunksize_{chunksize}'
drop_table_if_exists(engine=engine, schema=schema, table_name=table_name)
upsert(
schema=schema,
table_name=table_name,
df=df,
chunksize=chunksize,
engine=engine,
if_row_exists='update',
# MySQL does not want flexible text length in indices/PK
dtype={'profileid': VARCHAR(10)}
if 'mysql' in engine.dialect.dialect_description else None)
df_db = read_example_table_from_db(engine=engine,
schema=schema,
table_name=table_name)
# sort index (for MySQL...)
pd.testing.assert_frame_equal(df.sort_index(), df_db.sort_index())
def test_upsert_update(engine, schema):
dtype = {'profileid':VARCHAR(10)} if 'mysql' in engine.dialect.dialect_description else None
upsert(engine=engine, schema=schema, df=df2, if_row_exists='update', dtype=dtype, **default_args)
df_db = read_example_table_from_db(engine=engine, schema=schema, table_name=table_name)
pd.testing.assert_frame_equal(df2, df_db)
