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"""Tests for json2numpy.py."""
# Copyright (c) 2021-2022, ARM Limited.
# SPDX-License-Identifier: Apache-2.0
import json
import os
import numpy as np
import pytest
from json2numpy.json2numpy import main
@pytest.mark.parametrize(
"npy_filename,json_filename,data_type",
[
("single_num.npy", "single_num.json", np.int8),
("multiple_num.npy", "multiple_num.json", np.int8),
("single_num.npy", "single_num.json", np.int16),
("multiple_num.npy", "multiple_num.json", np.int16),
("single_num.npy", "single_num.json", np.int32),
("multiple_num.npy", "multiple_num.json", np.int32),
("single_num.npy", "single_num.json", np.int64),
("multiple_num.npy", "multiple_num.json", np.int64),
("single_num.npy", "single_num.json", np.uint8),
("multiple_num.npy", "multiple_num.json", np.uint8),
("single_num.npy", "single_num.json", np.uint16),
("multiple_num.npy", "multiple_num.json", np.uint16),
("single_num.npy", "single_num.json", np.uint32),
("multiple_num.npy", "multiple_num.json", np.uint32),
("single_num.npy", "single_num.json", np.uint64),
("multiple_num.npy", "multiple_num.json", np.uint64),
("single_num.npy", "single_num.json", np.float16),
("multiple_num.npy", "multiple_num.json", np.float16),
("single_num.npy", "single_num.json", np.float32),
("multiple_num.npy", "multiple_num.json", np.float32),
("single_num.npy", "single_num.json", np.float64),
("multiple_num.npy", "multiple_num.json", np.float64),
("single_num.npy", "single_num.json", bool),
("multiple_num.npy", "multiple_num.json", bool),
],
)
def test_json2numpy_npy_file(npy_filename, json_filename, data_type):
"""Test conversion to JSON."""
# Generate numpy data.
if "single" in npy_filename:
npy_data = np.ndarray(shape=(1, 1), dtype=data_type)
elif "multiple" in npy_filename:
npy_data = np.ndarray(shape=(2, 3), dtype=data_type)
# Get filepaths
npy_file = os.path.join(os.path.dirname(__file__), npy_filename)
json_file = os.path.join(os.path.dirname(__file__), json_filename)
# Save npy data to file and reload it.
with open(npy_file, "wb") as f:
np.save(f, npy_data)
npy_data = np.load(npy_file)
args = [npy_file]
"""Converts npy file to json"""
assert main(args) == 0
json_data = json.load(open(json_file))
assert np.dtype(json_data["type"]) == npy_data.dtype
assert np.array(json_data["data"]).shape == npy_data.shape
assert (np.array(json_data["data"]) == npy_data).all()
# Remove files created
if os.path.exists(npy_file):
os.remove(npy_file)
if os.path.exists(json_file):
os.remove(json_file)
@pytest.mark.parametrize(
"npy_filename,json_filename,data_type",
[
("single_num.npy", "single_num.json", np.int8),
("multiple_num.npy", "multiple_num.json", np.int8),
("single_num.npy", "single_num.json", np.int16),
("multiple_num.npy", "multiple_num.json", np.int16),
("single_num.npy", "single_num.json", np.int32),
("multiple_num.npy", "multiple_num.json", np.int32),
("single_num.npy", "single_num.json", np.int64),
("multiple_num.npy", "multiple_num.json", np.int64),
("single_num.npy", "single_num.json", np.uint8),
("multiple_num.npy", "multiple_num.json", np.uint8),
("single_num.npy", "single_num.json", np.uint16),
("multiple_num.npy", "multiple_num.json", np.uint16),
("single_num.npy", "single_num.json", np.uint32),
("multiple_num.npy", "multiple_num.json", np.uint32),
("single_num.npy", "single_num.json", np.uint64),
("multiple_num.npy", "multiple_num.json", np.uint64),
("single_num.npy", "single_num.json", np.float16),
("multiple_num.npy", "multiple_num.json", np.float16),
("single_num.npy", "single_num.json", np.float32),
("multiple_num.npy", "multiple_num.json", np.float32),
("single_num.npy", "single_num.json", np.float64),
("multiple_num.npy", "multiple_num.json", np.float64),
("single_num.npy", "single_num.json", bool),
("multiple_num.npy", "multiple_num.json", bool),
],
)
def test_json2numpy_json_file(npy_filename, json_filename, data_type):
"""Test conversion to binary."""
# Generate json data.
if "single" in npy_filename:
npy_data = np.ndarray(shape=(1, 1), dtype=data_type)
elif "multiple" in npy_filename:
npy_data = np.ndarray(shape=(2, 3), dtype=data_type)
# Generate json dictionary
list_data = npy_data.tolist()
json_data_type = str(npy_data.dtype)
json_data = {}
json_data["type"] = json_data_type
json_data["data"] = list_data
# Get filepaths
npy_file = os.path.join(os.path.dirname(__file__), npy_filename)
json_file = os.path.join(os.path.dirname(__file__), json_filename)
# Save json data to file and reload it.
with open(json_file, "w") as f:
json.dump(json_data, f)
json_data = json.load(open(json_file))
args = [json_file]
"""Converts json file to npy"""
assert main(args) == 0
npy_data = np.load(npy_file)
assert np.dtype(json_data["type"]) == npy_data.dtype
assert np.array(json_data["data"]).shape == npy_data.shape
assert (np.array(json_data["data"]) == npy_data).all()
# Remove files created
if os.path.exists(npy_file):
os.remove(npy_file)
if os.path.exists(json_file):
os.remove(json_file)
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