def test_order_by_nulls(self):
rows = (
(1, 2, None),
(2, None, None),
(1, 1, 'c'),
(1, None, 'a')
)
table = Table(rows, self.column_names, self.column_types)
new_table = table.order_by('two')
self.assertIsNot(new_table, table)
self.assertColumnNames(new_table, self.column_names)
self.assertColumnTypes(new_table, [Number, Number, Text])
self.assertRows(new_table, [
rows[2],
rows[0],
rows[1],
rows[3]
])
new_table = table.order_by('three')
self.assertIsNot(new_table, table)
self.assertColumnNames(new_table, self.column_names)
self.assertColumnTypes(new_table, [Number, Number, Text])
self.assertRows(new_table, [
rows[3],
rows[2],
rows[0],
rows[1]
])
def test_order_by_nulls(self):
rows = (
(1, 2, None),
(2, None, None),
(1, 1, 'c'),
(1, None, 'a')
)
table = Table(rows, self.column_names, self.column_types)
new_table = table.order_by('two')
self.assertIsNot(new_table, table)
self.assertColumnNames(new_table, self.column_names)
self.assertColumnTypes(new_table, [Number, Number, Text])
self.assertRows(new_table, [
rows[2],
rows[0],
rows[1],
rows[3]
])
new_table = table.order_by('three')
self.assertIsNot(new_table, table)
self.assertColumnNames(new_table, self.column_names)
self.assertColumnTypes(new_table, [Number, Number, Text])
self.assertRows(new_table, [
rows[3],
rows[2],
rows[0],
rows[1]
])
def test_order_by_nulls(self):
rows = ((1, 2, None), (2, None, None), (1, 1, 'c'), (1, None, 'a'))
table = Table(rows, self.columns)
new_table = table.order_by('two')
self.assertSequenceEqual(new_table.columns['two'], (1, 2, None, None))
new_table = table.order_by('three')
self.assertSequenceEqual(new_table.columns['three'],
('a', 'c', None, None))
def test_order_by_preserves_rows(self):
table = Table(self.rows, self.column_names, self.column_types)
table2 = table.order_by(lambda r: r['one'])
table3 = table2.order_by(lambda r: r['one'])
self.assertIs(table.rows[0], table2.rows[0])
self.assertIs(table2.rows[0], table3.rows[0])
def test_order_by_preserves_rows(self):
table = Table(self.rows, self.columns)
table2 = table.order_by(lambda r: r['one'])
table3 = table2.order_by(lambda r: r['one'])
self.assertIsNot(table._data[0], table2._data[0])
self.assertIs(table2._data[0], table3._data[0])
def test_order_by_preserves_rows(self):
table = Table(self.rows, self.columns)
table2 = table.order_by(lambda r: r['one'])
table3 = table2.order_by(lambda r: r['one'])
self.assertIs(table.rows[0], table2.rows[0])
self.assertIs(table2.rows[0], table3.rows[0])
def test_order_by_nulls(self):
rows = (
(1, 2, None),
(2, None, None),
(1, 1, 'c'),
(1, None, 'a')
)
table = Table(rows, self.column_names, self.column_types)
new_table = table.order_by('two')
self.assertSequenceEqual(new_table.columns['two'], (1, 2, None, None))
new_table = table.order_by('three')
self.assertSequenceEqual(new_table.columns['three'], ('a', 'c', None, None))
def test_order_by_with_row_names(self):
table = Table(self.rows,
self.column_names,
self.column_types,
row_names='three')
new_table = table.order_by('two')
self.assertRowNames(new_table, [u'👍', 'b', 'a'])
def test_order_by_reverse(self):
table = Table(self.rows, self.column_names, self.column_types)
new_table = table.order_by(lambda r: r['two'], reverse=True)
self.assertIsNot(new_table, table)
self.assertColumnNames(new_table, self.column_names)
self.assertColumnTypes(new_table, [Number, Number, Text])
self.assertRows(new_table, [self.rows[0], self.rows[1], self.rows[2]])
def test_order_by_reverse(self):
table = Table(self.rows, self.columns)
new_table = table.order_by(lambda r: r['two'], reverse=True)
self.assertEqual(len(new_table.rows), 3)
self.assertSequenceEqual(new_table.rows[0], (1, 4, 'a'))
self.assertSequenceEqual(new_table.rows[1], (2, 3, 'b'))
self.assertSequenceEqual(new_table.rows[2], (None, 2, u'👍'))
def test_order_by_reverse(self):
table = Table(self.rows, self.column_names, self.column_types)
new_table = table.order_by(lambda r: r['two'], reverse=True)
self.assertEqual(len(new_table.rows), 3)
self.assertSequenceEqual(new_table.rows[0], (1, 4, 'a'))
self.assertSequenceEqual(new_table.rows[1], (2, 3, 'b'))
self.assertSequenceEqual(new_table.rows[2], (None, 2, u'👍'))
def test_order_by_func(self):
rows = ((1, 2, 'a'), (2, 1, 'b'), (1, 1, 'c'))
table = Table(rows, self.column_names, self.column_types)
new_table = table.order_by(lambda r: (r['one'], r['two']))
self.assertIsNot(new_table, table)
self.assertColumnNames(new_table, self.column_names)
self.assertColumnTypes(new_table, [Number, Number, Text])
self.assertRows(new_table, [rows[2], rows[0], rows[1]])
def test_order_by_func(self):
rows = ((1, 2, 'a'), (2, 1, 'b'), (1, 1, 'c'))
table = Table(rows, self.columns)
new_table = table.order_by(lambda r: (r['one'], r['two']))
self.assertIsNot(new_table, table)
self.assertEqual(len(new_table.rows), 3)
self.assertSequenceEqual(new_table.rows[0], (1, 1, 'c'))
self.assertSequenceEqual(new_table.rows[1], (1, 2, 'a'))
self.assertSequenceEqual(new_table.rows[2], (2, 1, 'b'))
def test_order_by(self):
table = Table(self.rows, self.column_names, self.column_types)
new_table = table.order_by('two')
self.assertIsNot(new_table, table)
self.assertColumnNames(new_table, self.column_names)
self.assertColumnTypes(new_table, [Number, Number, Text])
self.assertRows(new_table, [self.rows[2], self.rows[1], self.rows[0]])
# Verify old table not changed
self.assertRows(table, self.rows)
def test_order_by_reverse(self):
table = Table(self.rows, self.column_names, self.column_types)
new_table = table.order_by(lambda r: r['two'], reverse=True)
self.assertIsNot(new_table, table)
self.assertColumnNames(new_table, self.column_names)
self.assertColumnTypes(new_table, [Number, Number, Text])
self.assertRows(new_table, [
self.rows[0],
self.rows[1],
self.rows[2]
])
def test_order_by(self):
table = Table(self.rows, self.column_names, self.column_types)
new_table = table.order_by('two')
self.assertIsNot(new_table, table)
self.assertEqual(len(new_table.rows), 3)
self.assertSequenceEqual(new_table.rows[0], (None, 2, u'👍'))
self.assertSequenceEqual(new_table.rows[1], (2, 3, 'b'))
self.assertSequenceEqual(new_table.rows[2], (1, 4, 'a'))
# Verify old table not changed
self.assertSequenceEqual(table.rows[0], (1, 4, 'a'))
self.assertSequenceEqual(table.rows[1], (2, 3, 'b'))
self.assertSequenceEqual(table.rows[2], (None, 2, u'👍'))
def test_order_by(self):
table = Table(self.rows, self.columns)
new_table = table.order_by('two')
self.assertIsNot(new_table, table)
self.assertEqual(len(new_table.rows), 3)
self.assertSequenceEqual(new_table.rows[0], (None, 2, u'👍'))
self.assertSequenceEqual(new_table.rows[1], (2, 3, 'b'))
self.assertSequenceEqual(new_table.rows[2], (1, 4, 'a'))
# Verify old table not changed
self.assertSequenceEqual(table.rows[0], (1, 4, 'a'))
self.assertSequenceEqual(table.rows[1], (2, 3, 'b'))
self.assertSequenceEqual(table.rows[2], (None, 2, u'👍'))
def test_order_by_func(self):
rows = (
(1, 2, 'a'),
(2, 1, 'b'),
(1, 1, 'c')
)
table = Table(rows, self.column_names, self.column_types)
new_table = table.order_by(lambda r: (r['one'], r['two']))
self.assertIsNot(new_table, table)
self.assertEqual(len(new_table.rows), 3)
self.assertSequenceEqual(new_table.rows[0], (1, 1, 'c'))
self.assertSequenceEqual(new_table.rows[1], (1, 2, 'a'))
self.assertSequenceEqual(new_table.rows[2], (2, 1, 'b'))
def test_order_by(self):
table = Table(self.rows, self.column_names, self.column_types)
new_table = table.order_by('two')
self.assertIsNot(new_table, table)
self.assertColumnNames(new_table, self.column_names)
self.assertColumnTypes(new_table, [Number, Number, Text])
self.assertRows(new_table, [
self.rows[2],
self.rows[1],
self.rows[0]
])
# Verify old table not changed
self.assertRows(table, self.rows)
def test_order_by_nulls(self):
self.rows = (
(1, 4, 'a'),
(None, 3, 'c'),
(2, 3, 'b'),
(None, 2, u'👍')
)
table = Table(self.rows, self.column_names, self.column_types)
new_table = table.order_by('one')
self.assertIsNot(new_table, table)
self.assertEqual(len(new_table.rows), 3)
self.assertSequenceEqual(new_table.rows[0], (1, 4, 'a'))
self.assertSequenceEqual(new_table.rows[1], (2, 3, 'b'))
self.assertSequenceEqual(new_table.rows[2], (None, 3, 'c'))
self.assertSequenceEqual(new_table.rows[3], (None, 2, u'👍'))
def test_order_by_nulls(self):
self.rows = (
(1, 4, 'a'),
(None, 3, 'c'),
(2, 3, 'b'),
(None, 2, u'👍')
)
table = Table(self.rows, self.columns)
new_table = table.order_by('one')
self.assertIsNot(new_table, table)
self.assertEqual(len(new_table.rows), 3)
self.assertSequenceEqual(new_table.rows[0], (1, 4, 'a'))
self.assertSequenceEqual(new_table.rows[1], (2, 3, 'b'))
self.assertSequenceEqual(new_table.rows[2], (None, 3, 'c'))
self.assertSequenceEqual(new_table.rows[3], (None, 2, u'👍'))
def test_order_by_func(self):
rows = (
(1, 2, 'a'),
(2, 1, 'b'),
(1, 1, 'c')
)
table = Table(rows, self.column_names, self.column_types)
new_table = table.order_by(lambda r: (r['one'], r['two']))
self.assertIsNot(new_table, table)
self.assertColumnNames(new_table, self.column_names)
self.assertColumnTypes(new_table, [Number, Number, Text])
self.assertRows(new_table, [
rows[2],
rows[0],
rows[1]
])
def test_order_by_empty_table(self):
table = Table([], self.column_names)
new_table = table.order_by('three') # noqa
def test_order_by_with_row_names(self):
table = Table(self.rows, self.column_names, self.column_types, row_names='three')
new_table = table.order_by('two')
self.assertRowNames(new_table, [u'👍', 'b', 'a'])
# Aggregate totals for all counties
totals = counties.aggregate([
('total_cost', Sum(), 'total_cost_sum')
])
totals = totals.order_by('total_cost_sum', reverse=True).rows[:5]
print('Five most spendy counties:')
for i, row in enumerate(totals):
text = '# {}: {}, ${:,}'.format(i + 1, row['group'], row['total_cost_sum'])
print(text)
# Get the five most recent purchases
recent_five = table.order_by('ship_date', reverse=True).rows[:5]
print('Five most recent purchases:')
for row in recent_five:
text = '{}: {} {}, ${:,}'.format(row['ship_date'], row['quantity'], row['item_name'], row['total_cost'])
print(text)
# Calculate the standard of deviation for the total_costs
stdev = table.columns['total_cost'].aggregate(StDev())
print('Standard deviation of total_cost: %.2f' % stdev)
# How many roborts were purchased?
robots = table.where(lambda r: 'ROBOT' in (r['item_name'] or [])).columns['quantity'].aggregate(Sum())
def test_order_by_empty_table(self):
table = Table([], self.column_names)
new_table = table.order_by('three') # noqa
def test_order_by_with_row_names(self):
table = Table(self.rows, self.column_names, self.column_types, row_names='three')
new_table = table.order_by('two')
self.assertSequenceEqual(new_table.rows[u'a'], (1, 4, 'a'))
self.assertSequenceEqual(new_table.row_names, (u'👍', 'b', 'a'))
def test_order_by_with_row_names(self):
table = Table(self.rows, self.columns, row_names='three')
new_table = table.order_by('two')
self.assertSequenceEqual(new_table.rows[u'a'], (1, 4, 'a'))
self.assertSequenceEqual(new_table.row_names, (u'👍', 'b', 'a'))