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39778e882a
* Add test suite for Supervisor tests * test_supervisor_is_updated should depend on test_update_supervisor Co-authored-by: Stefan Agner <stefan@agner.ch> --------- Co-authored-by: Stefan Agner <stefan@agner.ch>
55 lines
1.6 KiB
Python
55 lines
1.6 KiB
Python
import enum
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import os
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import attr
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from labgrid import target_factory, step
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from labgrid.strategy import Strategy, StrategyError
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class Status(enum.Enum):
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unknown = 0
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off = 1
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shell = 2
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@target_factory.reg_driver
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@attr.s(eq=False)
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class QEMUShellStrategy(Strategy):
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"""Strategy for starting a QEMU VM and running shell commands within it."""
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bindings = {
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"qemu": "QEMUDriver",
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"shell": "ShellDriver",
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}
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status = attr.ib(default=Status.unknown)
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def __attrs_post_init__(self):
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super().__attrs_post_init__()
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if "-accel kvm" in self.qemu.extra_args and os.environ.get("NO_KVM"):
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self.qemu.extra_args = self.qemu.extra_args.replace(
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"-accel kvm", ""
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).strip()
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@step(args=["status"])
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def transition(self, status, *, step): # pylint: disable=redefined-outer-name
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if not isinstance(status, Status):
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status = Status[status]
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if status == Status.unknown:
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raise StrategyError(f"can not transition to {status}")
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elif status == self.status:
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step.skip("nothing to do")
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return # nothing to do
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elif status == Status.off:
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self.target.activate(self.qemu)
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self.qemu.off()
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self.target.deactivate(self.shell)
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elif status == Status.shell:
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self.target.activate(self.qemu)
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self.qemu.on()
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self.target.activate(self.shell)
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else:
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raise StrategyError(f"no transition found from {self.status} to {status}")
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self.status = status
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