tests/python/target/test_virtual_device.py

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import pytest
import tvm
import tvm.testing


def test_make_virtual_device_for_device():
    virtual_device = tvm.target.VirtualDevice(tvm.device("cuda"))
    assert virtual_device.dlpack_device_type() == 2
    # ie kDLCUDA
    assert virtual_device.virtual_device_id == 0
    assert virtual_device.target is None
    assert virtual_device.memory_scope == ""


def test_make_virtual_device_for_device_and_target():
    target = tvm.target.Target("cuda")
    virtual_device = tvm.target.VirtualDevice(tvm.device("cuda"), target)
    assert virtual_device.dlpack_device_type() == 2  # ie kDLCUDA
    assert virtual_device.target == target
    assert virtual_device.memory_scope == ""


def test_make_virtual_device_for_device_target_and_memory_scope():
    target = tvm.target.Target("cuda")
    scope = "local"
    virtual_device = tvm.target.VirtualDevice(tvm.device("cuda"), target, scope)
    assert virtual_device.dlpack_device_type() == 2  # ie kDLCUDA
    assert virtual_device.target == target
    assert virtual_device.memory_scope == scope


if __name__ == "__main__":
    tvm.testing.main()