Re-add shared_ptr_test.pyx as it's a hand-written fixture, not generated

Author: jpfeuffer

tests/test_files/shared_ptr_test.pyx

@@ -0,0 +1,32 @@
+from libcpp.memory cimport shared_ptr
+from libcpp.string cimport string as std_string
+from cython.operator cimport dereference as deref
+
+
+cdef class Holder:
+
+    cdef shared_ptr[std_string] inst
+
+    def __init__(self, bytes what):
+        cdef std_string p = <std_string> what
+        self.inst = shared_ptr[std_string](new std_string(p))
+
+    def count(self):
+        return self.inst.use_count()
+
+
+    def getRef(self):
+        cdef Holder res = Holder.__new__(Holder)
+        res.inst = self.inst
+        return res
+
+    def getCopy(self):
+        cdef Holder res = Holder.__new__(Holder)
+        res.inst = shared_ptr[std_string](new std_string(deref(self.inst.get())))
+        return res
+
+    def addX(self):
+        self.inst.get().push_back("x")
+
+    def size(self):
+        return self.inst.get().size()