Refs #11418. Added algorithm skeleton and failing test

Code/Mantid/Framework/PythonInterface/plugins/algorithms/PoldiLoadCrystalData.py

+# pylint: disable=no-init,invalid-name,bare-except
+from mantid.kernel import *
+from mantid.simpleapi import *
+from mantid.api import *
+
+
+class PoldiLoadCrystalData(PythonAlgorithm):
+    def category(self):
+        return "SINQ\\POLDI"
+
+    def name(self):
+        return "PoldiLoadCrystalData"
+
+    def summary(self):
+        return ("The algorithm reads a POLDI crystal structure file and creates a WorkspaceGroup that contains tables"
+                "with the expected reflections.")
+
+    def PyInit(self):
+        pass
+
+    def PyExec(self):
+        pass
+
+
+AlgorithmFactory.subscribe(PoldiLoadCrystalData)
\ No newline at end of file

Code/Mantid/Framework/PythonInterface/test/python/plugins/algorithms/CMakeLists.txt

@@ -57,6 +57,7 @@ set ( TEST_PY_FILES
   ExportExperimentLogTest.py
   PoldiMergeTest.py
   VesuvioResolutionTest.py
+  PoldiLoadCrystalDataTest.py
 )
 
 check_tests_valid ( ${CMAKE_CURRENT_SOURCE_DIR} ${TEST_PY_FILES} )

Code/Mantid/Framework/PythonInterface/test/python/plugins/algorithms/PoldiLoadCrystalDataTest.py

+import unittest
+
+from mantid.kernel import *
+from mantid.api import *
+from mantid.simpleapi import *
+
+
+class PoldiLoadCrystalDataTest(unittest.TestCase):
+    def __init__(self, *args):
+        unittest.TestCase.__init__(self, *args)
+
+    def test_Init(self):
+        self.assertTrue(False)
+
+
+if __name__ == '__main__':
+    unittest.main()
\ No newline at end of file