1 files changed, 59 insertions, 0 deletions
diff --git a/tests/run/pyclass_annotations_pep526.py b/tests/run/pyclass_annotations_pep526.py
new file mode 100644
index 000000000..154dc9cf6
--- /dev/null
+++ b/tests/run/pyclass_annotations_pep526.py
@@ -0,0 +1,59 @@
+# cython: language_level=3
+# mode: run
+# tag: pure3.7, pep526, pep484
+
+from __future__ import annotations
+
+import sys
+
+try:
+    from typing import ClassVar
+except ImportError:  # Py<=3.5
+    ClassVar = {int: int}
+
+class NotAStr:
+    pass
+
+class PyAnnotatedClass:
+    """
+    >>> PyAnnotatedClass.__annotations__["CLASS_VAR"]
+    'ClassVar[int]'
+    >>> PyAnnotatedClass.__annotations__["obj"]
+    'str'
+    >>> PyAnnotatedClass.__annotations__["literal"]
+    "'int'"
+    >>> PyAnnotatedClass.__annotations__["recurse"]
+    "'PyAnnotatedClass'"
+    >>> PyAnnotatedClass.__annotations__["default"]
+    'bool'
+    >>> PyAnnotatedClass.CLASS_VAR
+    1
+    >>> PyAnnotatedClass.default
+    False
+    >>> PyAnnotatedClass.obj
+    Traceback (most recent call last):
+      ...
+    AttributeError: type object 'PyAnnotatedClass' has no attribute 'obj'
+    """
+    CLASS_VAR: ClassVar[int] = 1
+    obj: str
+    literal: "int"
+    recurse: "PyAnnotatedClass"
+    default: bool = False
+    # https://github.com/cython/cython/issues/4196 and https://github.com/cython/cython/issues/4198
+    not_object: float = 0.1  # Shouldn't try to create a c attribute
+    lie_about_type: str = NotAStr  # Shouldn't generate a runtime type-check
+
+
+class PyVanillaClass:
+    """
+    Before Py3.10, unannotated classes did not have '__annotations__'.
+
+    >>> try:
+    ...     a = PyVanillaClass.__annotations__
+    ... except AttributeError:
+    ...     assert sys.version_info < (3, 10)
+    ... else:
+    ...     assert sys.version_info >= (3, 10)
+    ...     assert a == {}
+    """