83 lines
3.0 KiB
Python
83 lines
3.0 KiB
Python
import unittest
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import numpy as np
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from urh.signalprocessing.IQArray import IQArray
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from urh.util.RingBuffer import RingBuffer
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class TestRingBuffer(unittest.TestCase):
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def test_push(self):
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ring_buffer = RingBuffer(size=10)
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self.assertEqual(0, ring_buffer.left_index)
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add1 = IQArray(np.array([1, 2, 3, 4, 5], dtype=np.complex64))
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ring_buffer.push(add1)
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self.assertEqual(5, ring_buffer.right_index)
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self.assertTrue(np.array_equal(ring_buffer.data[0:5], add1))
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add2 = IQArray(np.array([10, 20, 30, 40, 50, 60], dtype=np.complex64))
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self.assertFalse(ring_buffer.will_fit(len(add2)))
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ring_buffer.push(add2[:-1])
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self.assertTrue(np.array_equal(ring_buffer.data[5:10], add2[:-1]))
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self.assertTrue(np.array_equal(ring_buffer.data[0:5], add1))
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def test_pop(self):
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ring_buffer = RingBuffer(size=5)
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add1 = IQArray(np.array([1, 2, 3], dtype=np.complex64))
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ring_buffer.push(add1)
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self.assertTrue(np.array_equal(add1, ring_buffer.pop(40)))
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self.assertTrue(ring_buffer.is_empty)
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add2 = IQArray(np.array([1, 2, 3, 4], dtype=np.complex64))
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ring_buffer.push(add2)
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self.assertTrue(np.array_equal(add2, ring_buffer.pop(4)))
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self.assertTrue(ring_buffer.is_empty)
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add3 = IQArray(np.array([1, 2], dtype=np.complex64))
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ring_buffer.push(add3)
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popped_item = ring_buffer.pop(1)
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self.assertTrue(np.array_equal(add3[0:1], popped_item), msg=popped_item)
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self.assertFalse(ring_buffer.is_empty)
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add4 = IQArray(np.array([7, 8, 9, 10], dtype=np.complex64))
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ring_buffer.push(add4)
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self.assertFalse(ring_buffer.will_fit(1))
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self.assertTrue(np.array_equal(np.concatenate((add3.data[1:], add4.data)), ring_buffer.pop(5)))
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def test_continuous_pop(self):
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ring_buffer = RingBuffer(size=10)
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values = IQArray(np.array(list(range(10)), dtype=np.complex64))
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ring_buffer.push(values)
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retrieved = np.empty(0, dtype=np.float32)
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for i in range(10):
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retrieved = np.append(retrieved, ring_buffer.pop(1))
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self.assertEqual(values, IQArray(retrieved))
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def test_big_buffer(self):
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ring_buffer = RingBuffer(size=5)
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try:
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ring_buffer.push(IQArray(np.array([1, 2, 3, 4, 5, 6, 7], dtype=np.complex64)))
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self.assertTrue(False)
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except ValueError:
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self.assertTrue(True)
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def test_will_fit(self):
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ring_buffer = RingBuffer(size=8)
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self.assertEqual(ring_buffer.space_left, 8)
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self.assertTrue(ring_buffer.will_fit(4))
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self.assertTrue(ring_buffer.will_fit(8))
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self.assertFalse(ring_buffer.will_fit(9))
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ring_buffer.push(IQArray(np.array([1, 2, 3, 4], dtype=np.complex64)))
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self.assertEqual(ring_buffer.space_left, 4)
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self.assertTrue(ring_buffer.will_fit(3))
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self.assertTrue(ring_buffer.will_fit(4))
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self.assertFalse(ring_buffer.will_fit(5))
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if __name__ == '__main__':
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unittest.main()
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