mirror of
https://github.com/opencv/opencv.git
synced 2024-12-03 00:10:21 +08:00
3f65924c45
* core: FileStorage - add support for writing vector<String> with bindings * python: extend persistence test for string sequences
45 lines
1.5 KiB
Python
45 lines
1.5 KiB
Python
#!/usr/bin/env python
|
|
""""Core serializaion tests."""
|
|
import tempfile
|
|
import os
|
|
import cv2 as cv
|
|
import numpy as np
|
|
from tests_common import NewOpenCVTests
|
|
|
|
|
|
class persistence_test(NewOpenCVTests):
|
|
def test_yml_rw(self):
|
|
fd, fname = tempfile.mkstemp(prefix="opencv_python_persistence_", suffix=".yml")
|
|
os.close(fd)
|
|
|
|
# Writing ...
|
|
expected = np.array([[[0, 1, 2, 3, 4]]])
|
|
expected_str = ("Hello", "World", "!")
|
|
fs = cv.FileStorage(fname, cv.FILE_STORAGE_WRITE)
|
|
fs.write("test", expected)
|
|
fs.write("strings", expected_str)
|
|
fs.release()
|
|
|
|
# Reading ...
|
|
fs = cv.FileStorage(fname, cv.FILE_STORAGE_READ)
|
|
root = fs.getFirstTopLevelNode()
|
|
self.assertEqual(root.name(), "test")
|
|
|
|
test = fs.getNode("test")
|
|
self.assertEqual(test.empty(), False)
|
|
self.assertEqual(test.name(), "test")
|
|
self.assertEqual(test.type(), cv.FILE_NODE_MAP)
|
|
self.assertEqual(test.isMap(), True)
|
|
actual = test.mat()
|
|
self.assertEqual(actual.shape, expected.shape)
|
|
self.assertEqual(np.array_equal(expected, actual), True)
|
|
|
|
strings = fs.getNode("strings")
|
|
self.assertEqual(strings.isSeq(), True)
|
|
self.assertEqual(strings.size(), len(expected_str))
|
|
self.assertEqual(all(strings.at(i).isString() for i in range(strings.size())), True)
|
|
self.assertSequenceEqual([strings.at(i).string() for i in range(strings.size())], expected_str)
|
|
fs.release()
|
|
|
|
os.remove(fname)
|