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test: add test for exception on non-existent I2C bus
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@ -2,6 +2,8 @@ import os, unittest
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from artiq.experiment import *
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from artiq.test.hardware_testbench import ExperimentCase
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from artiq.coredevice.exceptions import I2CError
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from artiq.coredevice.i2c import PCA9548
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class I2CSwitch(EnvExperiment):
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@ -19,7 +21,21 @@ class I2CSwitch(EnvExperiment):
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self.set_dataset("passed", passed)
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class NonexistentI2CBus(EnvExperiment):
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def build(self):
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self.setattr_device("core")
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self.broken_switch = PCA9548(self._HasEnvironment__device_mgr, 255)
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@kernel
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def run(self):
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self.broken_switch.set(0)
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class I2CTest(ExperimentCase):
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def test_i2c_switch(self):
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self.execute(I2CSwitch)
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self.assertTrue(self.dataset_mgr.get("passed"))
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def test_nonexistent_bus(self):
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with self.assertRaises(I2CError):
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self.execute(NonexistentI2CBus)
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