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test_utilities.py
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test_utilities.py
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import numpy as np
import pandas as pd
import pytest
from folium import Map, FeatureGroup, Marker, Popup
from folium.utilities import (
validate_location,
validate_locations,
if_pandas_df_convert_to_numpy,
camelize,
deep_copy,
get_obj_in_upper_tree,
parse_options,
)
@pytest.mark.parametrize('location', [
(5, 3),
[5., 3.],
np.array([5, 3]),
np.array([[5, 3]]),
pd.Series([5, 3]),
pd.DataFrame([5, 3]),
pd.DataFrame([[5, 3]]),
('5.0', '3.0'),
('5', '3'),
])
def test_validate_location(location):
outcome = validate_location(location)
assert outcome == [5., 3.]
@pytest.mark.parametrize('location', [
None,
[None, None],
(),
[0],
['hi'],
'hi',
('lat', 'lon'),
Marker,
(Marker, Marker),
(3., np.nan),
{3., 5.},
{'lat': 5., 'lon': 3.},
range(4),
[0, 1, 2],
[(0, ), (1, )],
])
def test_validate_location_exceptions(location):
"""Test input that should raise an exception."""
with pytest.raises((TypeError, ValueError)):
validate_location(location)
@pytest.mark.parametrize('locations', [
[(0, 5), (1, 6), (2, 7)],
[[0, 5], [1, 6], [2, 7]],
np.array([[0, 5], [1, 6], [2, 7]]),
pd.DataFrame([[0, 5], [1, 6], [2, 7]]),
])
def test_validate_locations(locations):
outcome = validate_locations(locations)
assert outcome == [[0., 5.], [1., 6.], [2., 7.]]
@pytest.mark.parametrize('locations', [
[[(0, 5), (1, 6), (2, 7)], [(3, 8), (4, 9)]],
])
def test_validate_locations_multi(locations):
outcome = validate_locations(locations)
assert outcome == [[[0, 5], [1, 6], [2, 7]], [[3, 8], [4, 9]]]
@pytest.mark.parametrize('locations', [
None,
[None, None],
(),
[0],
['hi'],
'hi',
('lat', 'lon'),
Marker,
(Marker, Marker),
(3., np.nan),
{3., 5.},
{'lat': 5., 'lon': 3.},
range(4),
[0, 1, 2],
[(0, ), (1, )],
])
def test_validate_locations_exceptions(locations):
"""Test input that should raise an exception."""
with pytest.raises((TypeError, ValueError)):
validate_locations(locations)
def test_if_pandas_df_convert_to_numpy():
data = [[0, 5, 'red'], [1, 6, 'blue'], [2, 7, 'something']]
df = pd.DataFrame(data, columns=['lat', 'lng', 'color'])
res = if_pandas_df_convert_to_numpy(df)
assert isinstance(res, np.ndarray)
expected = np.array(data)
assert all([[all([i == j]) for i, j in zip(row1, row2)]
for row1, row2 in zip(res, expected)])
# Also check if it ignores things that are not Pandas DataFrame:
assert if_pandas_df_convert_to_numpy(data) is data
assert if_pandas_df_convert_to_numpy(expected) is expected
def test_camelize():
assert camelize('variable_name') == 'variableName'
assert camelize('variableName') == 'variableName'
assert camelize('name') == 'name'
assert camelize('very_long_variable_name') == 'veryLongVariableName'
def test_deep_copy():
m = Map()
fg = FeatureGroup().add_to(m)
Marker(location=(0, 0)).add_to(fg)
m_copy = deep_copy(m)
def check(item, item_copy):
assert type(item) is type(item_copy)
assert item._name == item_copy._name
for attr in item.__dict__.keys():
if not attr.startswith('_'):
assert getattr(item, attr) == getattr(item_copy, attr)
assert item is not item_copy
assert item._id != item_copy._id
for child, child_copy in zip(item._children.values(),
item_copy._children.values()):
check(child, child_copy)
check(m, m_copy)
def test_get_obj_in_upper_tree():
m = Map()
fg = FeatureGroup().add_to(m)
marker = Marker(location=(0, 0)).add_to(fg)
assert get_obj_in_upper_tree(marker, FeatureGroup) is fg
assert get_obj_in_upper_tree(marker, Map) is m
# The search should only go up, not down:
with pytest.raises(ValueError):
assert get_obj_in_upper_tree(fg, Marker)
with pytest.raises(ValueError):
assert get_obj_in_upper_tree(marker, Popup)
def test_parse_options():
assert parse_options(thing=42) == {'thing': 42}
assert parse_options(thing=None) == {}
assert parse_options(long_thing=42) == {'longThing': 42}
assert parse_options(thing=42, lst=[1, 2]) == {'thing': 42, 'lst': [1, 2]}