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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 unittest.mock
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+
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+import pytest
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+
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+from cc1101.options import SyncMode
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+
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+# pylint: disable=protected-access
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+
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+
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+@pytest.mark.parametrize(
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+ ("mdmcfg2", "sync_mode"),
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+ [
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+ (0b00000000, SyncMode.NO_PREAMBLE_AND_SYNC_WORD),
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+ (0b00000001, SyncMode.TRANSMIT_16_MATCH_15_BITS),
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+ (0b00000010, SyncMode.TRANSMIT_16_MATCH_16_BITS),
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+ (0b00000011, SyncMode.TRANSMIT_32_MATCH_30_BITS),
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+ (0b00000110, SyncMode.TRANSMIT_16_MATCH_16_BITS),
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+ (0b00000111, SyncMode.TRANSMIT_32_MATCH_30_BITS),
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+ (0b00001100, SyncMode.NO_PREAMBLE_AND_SYNC_WORD),
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+ (0b01101011, SyncMode.TRANSMIT_32_MATCH_30_BITS),
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+ (0b01101111, SyncMode.TRANSMIT_32_MATCH_30_BITS),
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+ ],
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+)
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+def test_get_sync_mode(transceiver, mdmcfg2, sync_mode):
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+ transceiver._spi.xfer.return_value = [15, mdmcfg2]
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+ assert transceiver.get_sync_mode() == sync_mode
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+ transceiver._spi.xfer.assert_called_once_with([0x12 | 0x80, 0])
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+
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+
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+@pytest.mark.parametrize(
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+ ("mdmcfg2_before", "mdmcfg2_after", "sync_mode", "threshold_enabled"),
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+ [
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+ (0b00000010, 0b00000000, SyncMode.NO_PREAMBLE_AND_SYNC_WORD, None),
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+ (0b00000010, 0b00000001, SyncMode.TRANSMIT_16_MATCH_15_BITS, None),
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+ (0b00000010, 0b00000010, SyncMode.TRANSMIT_16_MATCH_16_BITS, None),
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+ (0b00000010, 0b00000011, SyncMode.TRANSMIT_32_MATCH_30_BITS, None),
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+ (0b01101110, 0b01101111, SyncMode.TRANSMIT_32_MATCH_30_BITS, None),
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+ (0b00000010, 0b00000110, SyncMode.TRANSMIT_16_MATCH_16_BITS, True),
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+ (0b00000010, 0b00000111, SyncMode.TRANSMIT_32_MATCH_30_BITS, True),
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+ (0b01101110, 0b01101111, SyncMode.TRANSMIT_32_MATCH_30_BITS, True),
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+ (0b00000010, 0b00000010, SyncMode.TRANSMIT_16_MATCH_16_BITS, False),
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+ (0b00000010, 0b00000011, SyncMode.TRANSMIT_32_MATCH_30_BITS, False),
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+ (0b01101110, 0b01101011, SyncMode.TRANSMIT_32_MATCH_30_BITS, False),
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+ ],
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+)
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+def test_set_sync_mode(
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+ transceiver, mdmcfg2_before, mdmcfg2_after, sync_mode, threshold_enabled
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+):
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+ transceiver._spi.xfer.return_value = [15, 15]
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+ with unittest.mock.patch.object(
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+ transceiver, "_read_single_byte", return_value=mdmcfg2_before
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+ ):
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+ transceiver.set_sync_mode(
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+ sync_mode, _carrier_sense_threshold_enabled=threshold_enabled
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+ )
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+ transceiver._spi.xfer.assert_called_once_with([0x12 | 0x40, mdmcfg2_after])
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