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CLN: Parmeterize test cases #25355

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merged 3 commits into from
Mar 9, 2019
Merged

CLN: Parmeterize test cases #25355

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4e75dfe
Parmeterize test cases
alimcmaster1 Feb 17, 2019
74cf64d
Remove if exists
alimcmaster1 Feb 27, 2019
fe9a1e4
Merge remote-tracking branch 'upstream/master' into clean-test-cases
alimcmaster1 Mar 7, 2019
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50 changes: 17 additions & 33 deletions pandas/tests/io/test_sql.py
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Original file line number Diff line number Diff line change
Expand Up @@ -704,45 +704,29 @@ def test_complex(self):
# Complex data type should raise error
pytest.raises(ValueError, df.to_sql, 'test_complex', self.conn)

def test_to_sql_index_label(self):
temp_frame = DataFrame({'col1': range(4)})

@pytest.mark.parametrize("index_name,index_label,expected", [
# no index name, defaults to 'index'
sql.to_sql(temp_frame, 'test_index_label', self.conn)
frame = sql.read_sql_query('SELECT * FROM test_index_label', self.conn)
assert frame.columns[0] == 'index'

(None, None, "index"),
# specifying index_label
sql.to_sql(temp_frame, 'test_index_label', self.conn,
if_exists='replace', index_label='other_label')
frame = sql.read_sql_query('SELECT * FROM test_index_label', self.conn)
assert frame.columns[0] == "other_label"

(None, "other_label", "other_label"),
# using the index name
temp_frame.index.name = 'index_name'
sql.to_sql(temp_frame, 'test_index_label', self.conn,
if_exists='replace')
frame = sql.read_sql_query('SELECT * FROM test_index_label', self.conn)
assert frame.columns[0] == "index_name"

("index_name", None, "index_name"),
# has index name, but specifying index_label
sql.to_sql(temp_frame, 'test_index_label', self.conn,
if_exists='replace', index_label='other_label')
frame = sql.read_sql_query('SELECT * FROM test_index_label', self.conn)
assert frame.columns[0] == "other_label"

("index_name", "other_label", "other_label"),
# index name is integer
temp_frame.index.name = 0
sql.to_sql(temp_frame, 'test_index_label', self.conn,
if_exists='replace')
frame = sql.read_sql_query('SELECT * FROM test_index_label', self.conn)
assert frame.columns[0] == "0"

temp_frame.index.name = None
(0, None, "0"),
# index name is None but index label is integer
(None, 0, "0"),
])
def test_to_sql_index_label(self, index_name,
index_label, expected):
temp_frame = DataFrame({'col1': range(4)})
temp_frame.index.name = index_name
query = 'SELECT * FROM test_index_label'
sql.to_sql(temp_frame, 'test_index_label', self.conn,
if_exists='replace', index_label=0)
frame = sql.read_sql_query('SELECT * FROM test_index_label', self.conn)
assert frame.columns[0] == "0"
index_label=index_label)
frame = sql.read_sql_query(query, self.conn)
assert frame.columns[0] == expected

def test_to_sql_index_label_multiindex(self):
temp_frame = DataFrame({'col1': range(4)},
Expand Down