gradio/test/test_processing_utils.py
Ömer Faruk Özdemir ceee0fce9e blocks-components-test
- use deepcopy in the remaining tests as well
- update a failing test
- add processing utils to init for IDE to identify the function
2022-04-05 13:08:53 +03:00

136 lines
4.6 KiB
Python

import os
import tempfile
import unittest
from copy import deepcopy
from test.test_data import media_data
import matplotlib.pyplot as plt
import numpy as np
from PIL import Image
import gradio as gr
os.environ["GRADIO_ANALYTICS_ENABLED"] = "False"
class ImagePreprocessing(unittest.TestCase):
def test_decode_base64_to_image(self):
output_image = gr.processing_utils.decode_base64_to_image(
deepcopy(media_data.BASE64_IMAGE)
)
self.assertIsInstance(output_image, Image.Image)
def test_encode_url_or_file_to_base64(self):
output_base64 = gr.processing_utils.encode_url_or_file_to_base64(
"test/test_data/test_image.png"
)
self.assertEquals(output_base64, deepcopy(media_data.BASE64_IMAGE))
def test_encode_file_to_base64(self):
output_base64 = gr.processing_utils.encode_file_to_base64(
"test/test_data/test_image.png"
)
self.assertEquals(output_base64, deepcopy(media_data.BASE64_IMAGE))
def test_encode_url_to_base64(self):
output_base64 = gr.processing_utils.encode_url_to_base64(
"https://raw.githubusercontent.com/gradio-app/gradio/master/test"
"/test_data/test_image.png"
)
self.assertEqual(output_base64, deepcopy(media_data.BASE64_IMAGE))
def test_encode_plot_to_base64(self):
plt.plot([1, 2, 3, 4])
output_base64 = gr.processing_utils.encode_plot_to_base64(plt)
self.assertTrue(
output_base64.startswith("data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAo")
)
def test_encode_array_to_base64(self):
img = Image.open("test/test_data/test_image.png")
img = img.convert("RGB")
numpy_data = np.asarray(img, dtype=np.uint8)
output_base64 = gr.processing_utils.encode_array_to_base64(numpy_data)
self.assertEqual(output_base64, deepcopy(media_data.ARRAY_TO_BASE64_IMAGE))
def test_resize_and_crop(self):
img = Image.open("test/test_data/test_image.png")
new_img = gr.processing_utils.resize_and_crop(img, (20, 20))
self.assertEqual(new_img.size, (20, 20))
self.assertRaises(
ValueError,
gr.processing_utils.resize_and_crop,
**{"img": img, "size": (20, 20), "crop_type": "test"}
)
class AudioPreprocessing(unittest.TestCase):
def test_audio_from_file(self):
audio = gr.processing_utils.audio_from_file("test/test_data/test_audio.wav")
self.assertEqual(audio[0], 22050)
self.assertIsInstance(audio[1], np.ndarray)
def test_audio_to_file(self):
audio = gr.processing_utils.audio_from_file("test/test_data/test_audio.wav")
gr.processing_utils.audio_to_file(audio[0], audio[1], "test_audio_to_file")
self.assertTrue(os.path.exists("test_audio_to_file"))
os.remove("test_audio_to_file")
class OutputPreprocessing(unittest.TestCase):
def test_decode_base64_to_binary(self):
binary = gr.processing_utils.decode_base64_to_binary(
deepcopy(media_data.BASE64_IMAGE)
)
self.assertEqual(deepcopy(media_data.BINARY_IMAGE), binary)
def test_decode_base64_to_file(self):
temp_file = gr.processing_utils.decode_base64_to_file(
deepcopy(media_data.BASE64_IMAGE)
)
self.assertIsInstance(temp_file, tempfile._TemporaryFileWrapper)
def test_create_tmp_copy_of_file(self):
temp_file = gr.processing_utils.create_tmp_copy_of_file("test.txt")
self.assertIsInstance(temp_file, tempfile._TemporaryFileWrapper)
float_dtype_list = [
float,
float,
np.double,
np.single,
np.float32,
np.float64,
"float32",
"float64",
]
def test_float_conversion_dtype(self):
"""Test any convertion from a float dtype to an other."""
x = np.array([-1, 1])
# Test all combinations of dtypes conversions
dtype_combin = np.array(
np.meshgrid(
OutputPreprocessing.float_dtype_list,
OutputPreprocessing.float_dtype_list,
)
).T.reshape(-1, 2)
for dtype_in, dtype_out in dtype_combin:
x = x.astype(dtype_in)
y = gr.processing_utils._convert(x, dtype_out)
assert y.dtype == np.dtype(dtype_out)
def test_subclass_conversion(self):
"""Check subclass conversion behavior"""
x = np.array([-1, 1])
for dtype in OutputPreprocessing.float_dtype_list:
x = x.astype(dtype)
y = gr.processing_utils._convert(x, np.floating)
assert y.dtype == x.dtype
if __name__ == "__main__":
unittest.main()