[PyROOT] Add test for STL vector pythonizations

Author: etejedor

bindings/pyroot/pythonizations/test/CMakeLists.txt

@@ -26,6 +26,9 @@ ROOT_ADD_PYUNITTEST(pyroot_pyz_decorator pythonization_decorator.py)
 ROOT_ADD_PYUNITTEST(pyroot_pyz_pretty_printing pretty_printing.py)
 ROOT_ADD_PYUNITTEST(pyroot_pyz_array_interface array_interface.py PYTHON_DEPS numpy)
 
+# STL vector pythonizations
+ROOT_ADD_PYUNITTEST(pyroot_pyz_stl_vector stl_vector.py)
+
 # TObject and subclasses pythonisations
 ROOT_ADD_PYUNITTEST(pyroot_pyz_tobject_contains tobject_contains.py)
 ROOT_ADD_PYUNITTEST(pyroot_pyz_tobject_comparisonops tobject_comparisonops.py)

bindings/pyroot/pythonizations/test/stl_vector.py

@@ -0,0 +1,25 @@
+import unittest
+import ROOT
+
+
+class STL_vector(unittest.TestCase):
+    """
+    Tests for the pythonizations of std::vector. 
+    """
+
+    def test_vec_char_data(self):
+        '''
+        Test that calling std::vector<char>::data() returns a Python string
+        that contains the characters of the vector and no exception is raised.
+        Check also that the iteration over the vector runs normally (#9632).
+        '''
+
+        elems = ['a','b','c']
+        v = ROOT.std.vector['char'](elems)
+        self.assertEqual(v.data(), ''.join(elems))
+
+        for elem in v:
+            self.assertEqual(elem, elems.pop(0))
+
+if __name__ == '__main__':
+    unittest.main()