[PyROOT experimental] Add tests for ROOT module

bindings/pyroot_experimental/PyROOT/test/CMakeLists.txt

@@ -4,6 +4,9 @@
 # For the licensing terms see $ROOTSYS/LICENSE.
 # For the list of contributors see $ROOTSYS/README/CREDITS.
 
+# Test ROOT module
+ROOT_ADD_PYUNITTEST(pyroot_root_module root_module.py)
+
 # General pythonizations
 ROOT_ADD_PYUNITTEST(pyroot_pyz_pretty_printing pretty_printing.py)
 ROOT_ADD_PYUNITTEST(pyroot_pyz_array_interface array_interface.py)

bindings/pyroot_experimental/PyROOT/test/root_module.py

+import unittest
+
+
+class ROOTModule(unittest.TestCase):
+    """
+    Testing features of the ROOT module implemented in the ROOT module facade
+    """
+
+    def test_import(self):
+        """
+        Test import
+        """
+        import ROOT
+        self.assertEqual(ROOT.__name__, "ROOT")
+
+
+    def test_relative_import(self):
+        """
+        Test relative import
+        """
+        from ROOT import TH1F
+        self.assertEqual(TH1F.__name__, "TH1F")
+        from ROOT import TH1F as Foo
+        self.assertEqual(Foo.__name__, "TH1F")
+        self.assertEqual(TH1F, Foo)
+
+
+    def test_version(self):
+        """
+        Test __version__ property
+        """
+        import ROOT
+        v = ROOT.__version__
+        self.assertTrue(type(v) == str)
+        self.assertIn("/", v)
+        self.assertIn(".", v)
+        self.assertEqual(v, ROOT.gROOT.GetVersion())
+
+
+    def test_ignore_cmdline_options(self):
+        """
+        Test module flag to ignore command line options
+        """
+        import ROOT
+        self.assertEqual(ROOT.PyConfig.IgnoreCommandLineOptions, False)
+        ROOT.PyConfig.IgnoreCommandLineOptions = True