mirror of https://github.com/open-mmlab/mmocr.git
67 lines
2.1 KiB
Python
67 lines
2.1 KiB
Python
"""Test text label visualize."""
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import os.path as osp
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import random
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import tempfile
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from unittest import mock
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import numpy as np
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import pytest
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import mmocr.core.visualize as visualize_utils
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def test_tile_image():
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dummp_imgs, heights, widths = [], [], []
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for _ in range(3):
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h = random.randint(100, 300)
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w = random.randint(100, 300)
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heights.append(h)
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widths.append(w)
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# dummy_img = Image.new('RGB', (w, h), Image.ANTIALIAS)
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dummy_img = np.ones((h, w, 3), dtype=np.uint8)
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dummp_imgs.append(dummy_img)
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joint_img = visualize_utils.tile_image(dummp_imgs)
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assert joint_img.shape[0] == sum(heights)
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assert joint_img.shape[1] == max(widths)
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# test invalid arguments
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with pytest.raises(AssertionError):
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visualize_utils.tile_image(dummp_imgs[0])
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with pytest.raises(AssertionError):
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visualize_utils.tile_image([])
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@mock.patch('%s.visualize_utils.mmcv.imread' % __name__)
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@mock.patch('%s.visualize_utils.mmcv.imshow' % __name__)
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@mock.patch('%s.visualize_utils.mmcv.imwrite' % __name__)
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def test_show_text_label(mock_imwrite, mock_imshow, mock_imread):
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img = np.ones((32, 160), dtype=np.uint8)
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pred_label = 'hello'
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gt_label = 'world'
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tmp_dir = tempfile.TemporaryDirectory()
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out_file = osp.join(tmp_dir.name, 'tmp.jpg')
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# test invalid arguments
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with pytest.raises(AssertionError):
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visualize_utils.imshow_text_label(5, pred_label, gt_label)
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with pytest.raises(AssertionError):
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visualize_utils.imshow_text_label(img, pred_label, 4)
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with pytest.raises(AssertionError):
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visualize_utils.imshow_text_label(img, 3, gt_label)
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with pytest.raises(AssertionError):
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visualize_utils.imshow_text_label(
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img, pred_label, gt_label, show=True, wait_time=0.1)
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mock_imread.side_effect = [img, img]
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visualize_utils.imshow_text_label(
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img, pred_label, gt_label, out_file=out_file)
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visualize_utils.imshow_text_label(
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img, '中文', '中文', out_file=None, show=True)
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# test showing img
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mock_imshow.assert_called_once()
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mock_imwrite.assert_called_once()
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tmp_dir.cleanup()
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