1 files changed, 74 insertions, 0 deletions
diff --git a/tests/run/fused_cpp.pyx b/tests/run/fused_cpp.pyx
index c5a0d7d34..95b326904 100644
--- a/tests/run/fused_cpp.pyx
+++ b/tests/run/fused_cpp.pyx
@@ -2,6 +2,9 @@
 
 cimport cython
 from libcpp.vector cimport vector
+from libcpp.map cimport map
+from libcpp.typeinfo cimport type_info
+from cython.operator cimport typeid
 
 def test_cpp_specialization(cython.floating element):
     """
@@ -14,3 +17,74 @@ def test_cpp_specialization(cython.floating element):
     cdef vector[cython.floating] *v = new vector[cython.floating]()
     v.push_back(element)
     print cython.typeof(v), cython.typeof(element), v.at(0)
+
+cdef fused C:
+   int
+   object
+
+cdef const type_info* tidint = &typeid(int)
+def typeid_call(C x):
+    """
+    For GH issue 3203
+    >>> typeid_call(1)
+    True
+    """
+    cdef const type_info* a = &typeid(C)
+    return a[0] == tidint[0]
+
+cimport cython
+
+def typeid_call2(cython.integral x):
+    """
+    For GH issue 3203
+    >>> typeid_call2[int](1)
+    True
+    """
+    cdef const type_info* a = &typeid(cython.integral)
+    return a[0] == tidint[0]
+
+cdef fused_ref(cython.integral& x):
+    return x*2
+
+def test_fused_ref(int x):
+    """
+    >>> test_fused_ref(5)
+    (10, 10)
+    """
+    return fused_ref(x), fused_ref[int](x)
+
+ctypedef fused nested_fused:
+    vector[cython.integral]
+
+cdef vec_of_fused(nested_fused v):
+    x = v[0]
+    return cython.typeof(x)
+
+def test_nested_fused():
+    """
+    >>> test_nested_fused()
+    int
+    long
+    """
+    cdef vector[int] vi = [0,1]
+    cdef vector[long] vl = [0,1]
+    print vec_of_fused(vi)
+    print vec_of_fused(vl)
+
+ctypedef fused nested_fused2:
+    map[cython.integral, cython.floating]
+
+cdef map_of_fused(nested_fused2 m):
+    for pair in m:
+        return cython.typeof(pair.first), cython.typeof(pair.second)
+
+def test_nested_fused2():
+    """
+    >>> test_nested_fused2()
+    ('int', 'float')
+    ('long', 'double')
+    """
+    cdef map[int, float] mif = { 0: 0.0 }
+    cdef map[long, double] mld = { 0: 0.0 }
+    print map_of_fused(mif)
+    print map_of_fused(mld)