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@@ -0,0 +1,42 @@
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+# python-cc1101 - Python Library to Transmit RF Signals via C1101 Transceivers
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+#
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+# Copyright (C) 2020 Fabian Peter Hammerle <fabian@hammerle.me>
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+#
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+# This program is free software: you can redistribute it and/or modify
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+# it under the terms of the GNU General Public License as published by
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+# the Free Software Foundation, either version 3 of the License, or
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+# any later version.
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+#
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+# This program is distributed in the hope that it will be useful,
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+# but WITHOUT ANY WARRANTY; without even the implied warranty of
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+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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+# GNU General Public License for more details.
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+#
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+# You should have received a copy of the GNU General Public License
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+# along with this program. If not, see <https://www.gnu.org/licenses/>.
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+
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+import pytest
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+
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+# pylint: disable=protected-access
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+
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+
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+def test_get_packet_length_bytes(transceiver):
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+ xfer_mock = transceiver._spi.xfer
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+ xfer_mock.return_value = [0, 8]
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+ assert transceiver.get_packet_length_bytes() == 8
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+ xfer_mock.assert_called_once_with([0x06 | 0x80, 0])
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+
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+
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+@pytest.mark.parametrize("packet_length", [21])
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+def test_set_packet_length_bytes(transceiver, packet_length):
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+ xfer_mock = transceiver._spi.xfer
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+ xfer_mock.return_value = [15, 15]
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+ transceiver.set_packet_length_bytes(packet_length)
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+ xfer_mock.assert_called_once_with([0x06 | 0x40, packet_length])
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+
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+
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+@pytest.mark.parametrize("packet_length", [-21, 0, 256, 1024])
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+def test_set_packet_length_bytes_fail(transceiver, packet_length):
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+ with pytest.raises(Exception):
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+ transceiver.set_packet_length_bytes(packet_length)
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+ transceiver._spi.xfer.assert_not_called()
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