[OMCPath] add pytest (only docker at the moment)

Author: syntron

tests/test_OMCPath.py

@@ -0,0 +1,26 @@
+import OMPython
+
+
+def test_OMCPath_docker():
+    omcp = OMPython.OMCProcessDocker(docker="openmodelica/openmodelica:v1.25.0-minimal")
+    om = OMPython.OMCSessionZMQ(omc_process=omcp)
+    assert om.sendExpression("getVersion()") == "OpenModelica 1.25.0"
+
+    p1 = om.omcpath('/tmp')
+    assert str(p1) == "/tmp"
+    p2 = p1 / 'test.txt'
+    assert str(p2) == "/tmp/test.txt"
+    assert p2.write_text('test')
+    assert p2.read_text() == "test"
+    assert p2.is_file()
+    assert p2.parent.is_dir()
+    assert p2.unlink()
+    assert p2.is_file() == False
+
+    del omcp
+    del om
+
+
+if __name__ == '__main__':
+    test_OMCPath_docker()
+    print('DONE')