tst: start pytest effort with basic open/close dma test

Signed-off-by: Federico Vaga <federico.vaga@cern.ch>

tst: start pytest effort with basic open/close dma test
Signed-off-by: Federico Vaga <federico.vaga@cern.ch>
0200a93c · Federico Vaga · fefdf297 · 0200a93c · 0200a93c · 0200a93c
Commit 0200a93c authored Jun 23, 2020 by Federico Vaga
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conftest.py pytest/conftest.py +19 -0

pytest.ini pytest/pytest.ini +5 -0

test_dma.py pytest/test_dma.py +24 -0

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--- a/pytest/conftest.py
+++ b/pytest/conftest.py
+"""
+SPDX-License-Identifier: GPL-3.0-or-later
+SPDX-FileCopyrightText: 2020 CERN
+"""
+
+import pytest
+from PySPEC import PySPEC
+
+
+@pytest.fixture(scope="function")
+def spec():
+    return PySPEC(pytest.pci_id)
+
+def pytest_addoption(parser):
+    parser.addoption("--pci-id",
+                     required=True, help="SPEC PCI Identifier")
+
+def pytest_configure(config):
+    pytest.pci_id = config.getoption("--pci-id")
--- a/pytest/pytest.ini
+++ b/pytest/pytest.ini
+# SPDX-License-Identifier: GPL-3.0-or-later
+# SPDX-FileCopyrightText: 2020 CERN
+
+[pytest]
+addopts = -v -p no:cacheprovider
\ No newline at end of file
--- a/pytest/test_dma.py
+++ b/pytest/test_dma.py
+"""
+SPDX-License-Identifier: GPL-3.0-or-later
+SPDX-FileCopyrightText: 2020 CERN
+"""
+import pytest
+from PySPEC import PySPEC
+
+class TestDma(object):
+    def test_acquisition_release(self, spec):
+        """
+        Users can open and close the DMA channel
+        """
+        spec.dma_start()
+        spec.dma_stop()
+
+    def test_acquisition_release_contention(self, spec):
+        """
+        Refuse simultaneous DMA transfers
+        """
+        spec.dma_start()
+        spec_c = PySPEC(spec.pci_id)
+        with pytest.raises(OSError) as error:
+            spec_c.dma_start()
+        spec.dma_stop()