Move test-only function from cffi/ to testing/

1 files changed, 25 insertions, 0 deletions

diff --git a/testing/support.py b/testing/support.py
index c26bc91..65f010c 100644
--- a/testing/support.py
+++ b/testing/support.py
@@ -61,3 +61,28 @@ class FdWriteCapture(object):
 
     def getvalue(self):
         return self._value
+
+def _verify(ffi, module_name, preamble, *args, **kwds):
+    import imp
+    from cffi.recompiler import recompile
+    from .udir import udir
+    assert module_name not in sys.modules, "module name conflict: %r" % (
+        module_name,)
+    kwds.setdefault('tmpdir', str(udir))
+    outputfilename = recompile(ffi, module_name, preamble, *args, **kwds)
+    module = imp.load_dynamic(module_name, outputfilename)
+    #
+    # hack hack hack: copy all *bound methods* from module.ffi back to the
+    # ffi instance.  Then calls like ffi.new() will invoke module.ffi.new().
+    for name in dir(module.ffi):
+        if not name.startswith('_'):
+            attr = getattr(module.ffi, name)
+            if attr is not getattr(ffi, name, object()):
+                setattr(ffi, name, attr)
+    def typeof_disabled(*args, **kwds):
+        raise NotImplementedError
+    ffi._typeof = typeof_disabled
+    for name in dir(ffi):
+        if not name.startswith('_') and not hasattr(module.ffi, name):
+            setattr(ffi, name, NotImplemented)
+    return module.lib