add test for AnnotationCCodeWriter

tests/run/annotate_html.pyx

+"""
+>>> import os.path as os_path
+>>> module_path = os_path.join(os_path.dirname(__file__), os_path.basename(__file__).split('.', 1)[0])
+>>> assert module_path.endswith('annotate_html')
+>>> assert os_path.exists(module_path + '.c'), module_path
+>>> assert os_path.exists(module_path + '.html'), module_path
+
+>>> with open(module_path + '.html') as html_file:
+...     html = html_file.read()
+
+>>> import re
+>>> assert re.search('<pre .*def.* .*mixed_test.*</pre>', html)
+"""
+
+
+def mixed_test():
+    """docstring
+    """
+    cdef int int1, int2, int3
+    cdef char *ptr1, *ptr2 = "test", *ptr3 = "toast"
+    int2 = 10
+    int3 = 20
+    obj1 = 1
+    obj2 = 2
+    obj3 = 3
+    int1 = int2 + int3
+    ptr1 = ptr2 + int3
+    ptr1 = int2 + ptr3
+    obj1 = obj2 + int3
+    return int1, obj1
+
+
+def add_x_1(int x):
+    return x + 1
+
+
+def add_x_1f(x):
+    return x + 1.0
+
+
+def add_x_large(x):
+    return x + 2**30
+
+
+def add_1_x(x):
+    return 1 + x
+
+
+def add_1f_x(double x):
+    return 1.0 + x
+
+
+def add_large_x(x):
+    return 2**30 + x
+
+
+class PythonClass(object):
+    def call(self, x):
+        return add_1_x(x)
+
+
+cdef class ExtensionType(object):
+    @classmethod
+    def new(cls):
+        return cls()