diff --git a/_pytest/fixtures.py b/_pytest/fixtures.py
index 7b109ec11..6617c24a2 100644
--- a/_pytest/fixtures.py
+++ b/_pytest/fixtures.py
@@ -984,7 +984,7 @@ class FixtureManager(object):
         session.config.pluginmanager.register(self, "funcmanage")
 
     def getfixtureinfo(self, node, func, cls, funcargs=True):
-        if funcargs and not hasattr(node, "nofuncargs"):
+        if funcargs and not getattr(node, "nofuncargs", False):
             argnames = getfuncargnames(func, cls=cls)
         else:
             argnames = ()
diff --git a/_pytest/python.py b/_pytest/python.py
index 8bcb051a2..2b37067d5 100644
--- a/_pytest/python.py
+++ b/_pytest/python.py
@@ -1155,7 +1155,7 @@ class Function(FunctionMixin, nodes.Item, fixtures.FuncargnamesCompatAttr):
 
         if fixtureinfo is None:
             fixtureinfo = self.session._fixturemanager.getfixtureinfo(
-                self.parent, self.obj, self.cls,
+                self, self.obj, self.cls,
                 funcargs=not self._isyieldedfunction())
         self._fixtureinfo = fixtureinfo
         self.fixturenames = fixtureinfo.names_closure
diff --git a/_pytest/unittest.py b/_pytest/unittest.py
index 3ddb39495..17c94bca4 100644
--- a/_pytest/unittest.py
+++ b/_pytest/unittest.py
@@ -54,7 +54,7 @@ class UnitTestCase(Class):
                 continue
             funcobj = getattr(x, 'im_func', x)
             transfer_markers(funcobj, cls, module)
-            yield TestCaseFunction(name, parent=self)
+            yield TestCaseFunction(name, parent=self, callobj=funcobj)
             foundsomething = True
 
         if not foundsomething:
@@ -66,6 +66,7 @@ class UnitTestCase(Class):
 
 
 class TestCaseFunction(Function):
+    nofuncargs = True
     _excinfo = None
 
     def setup(self):
diff --git a/changelog/3498.bugfix b/changelog/3498.bugfix
new file mode 100644
index 000000000..7260879c4
--- /dev/null
+++ b/changelog/3498.bugfix
@@ -0,0 +1 @@
+correctly instantiate fixtureinfo for unittest tests.
\ No newline at end of file