Add test for infinite recursion with sls prerequisites

tests/integration/files/file/base/requisites/prereq_sls_infinite_recursion.sls

@@ -0,0 +1,7 @@
+include:
+  - requisites.prereq_sls_infinite_recursion_2
+A:
+  test.succeed_without_changes:
+    - name: A
+    - prereq:
+      - sls: requisites.prereq_sls_infinite_recursion_2

tests/integration/files/file/base/requisites/prereq_sls_infinite_recursion_2.sls

@@ -0,0 +1,4 @@
+
+B:
+  test.succeed_without_changes:
+    - name: B

tests/integration/modules/state.py

@@ -859,6 +859,9 @@ class StateModuleTest(integration.ModuleCase,
         #    ret,
         #    ['A recursive requisite was found, SLS "requisites.prereq_recursion_error" ID "B" ID "A"']
         #)
+    def test_infinite_recursion_sls_prereq(self):
+        ret = self.run_function('state.sls', mods='requisites.prereq_sls_infinite_recursion')
+        self.assertSaltTrueReturn(ret)
 
     def test_requisites_use(self):
         '''