49 lines
1.7 KiB
Python
49 lines
1.7 KiB
Python
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import numpy as np
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import pandas as pd
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from data import SingleHeaderNumpyArray, DoubleHeaderNumpyArray
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def test_single_header_numpy_array():
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x = np.random.rand(10)
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y = np.random.rand(10)
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array = SingleHeaderNumpyArray(np.stack((x, y), axis=-1), ['x', 'y'])
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assert (array[:, 'x'] == x).all()
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assert (array[:, 'y'] == y).all()
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assert (array[3:7, 'y'] == y[3:7]).all()
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assert (array.x == x).all()
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assert (array.y == y).all()
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def test_double_header_numpy_array():
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x = np.random.rand(10)
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y = np.random.rand(10)
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vx = np.random.rand(10)
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vy = np.random.rand(10)
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data_dict = {('position', 'x'): x,
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('position', 'y'): y,
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('velocity', 'x'): vx,
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('velocity', 'y'): vy}
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data_columns = pd.MultiIndex.from_product([['position', 'velocity'], ['x', 'y']])
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node_data = pd.DataFrame(data_dict, columns=data_columns)
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array = DoubleHeaderNumpyArray(node_data.values, list(node_data.columns))
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test_header_dict = {'position': ['x', 'y'], 'velocity': ['y']}
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assert (array[:, ('position', 'x')] == x).all()
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assert (array[:, ('velocity', 'y')] == vy).all()
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assert (array[4:7, ('velocity', 'y')] == vy[4:7]).all()
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assert (array[:, [('position', 'x'), ('velocity', 'y')]] == np.stack((x, vy), axis=-1)).all()
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assert (array[:, [('position', 'y'), ('velocity', 'x')]] == np.stack((y, vx), axis=-1)).all()
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assert (array[2:6, [('position', 'y'), ('velocity', 'x')]] == np.stack((y, vx), axis=-1)[2:6]).all()
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assert (array[:, test_header_dict] == np.stack((x, y, vy), axis=-1)).all()
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assert (array[1:8, test_header_dict] == np.stack((x, y, vy), axis=-1)[1:8]).all()
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assert (array.position.x == x).all()
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