disable flaky generic model test

Summary: The flakiness is exercised by upgrading the OCaml compiler to 4.04.0.

Reviewed By: jberdine

Differential Revision: D4859904

fbshipit-source-id: 0dd7ff6

infer/tests/codetoanalyze/cpp/errors/generic_models/generic_model_test.cpp

@@ -15,11 +15,17 @@
   "generic_model.cpp". If generic model is truly generic, then infer will pick
   up specs for those and use them
 */
-int genericModelNPE() {
+/* FIXME(t17253769): flaky because OnDemand doesn't know that
-  GenericModelClass<int> x;
+ * `genericModelFunction<int>()` and `genericModelFunction<long long>()` are
-  auto ptr = x.get();
+ * meant to be the same function. These two procedures have the same specs
-  return *ptr;
+ * filename, so depending on which gets analyzed first the spec may already be
-}
+ * there or not, but if it's the latter then OnDemand will not know to schedule
+ * the analysis of `genericModelFunction<long long>()` */
+// int genericModelNPE() {
+//   GenericModelClass<int> x;
+//   auto ptr = x.get();
+//   return *ptr;
+// }
 
 int nonGenericModelNoNPE() {
   NonGenericModelClass<int> x;
@@ -27,11 +33,13 @@ int nonGenericModelNoNPE() {
   return *ptr;
 }
 
-int genericModelFunctionNPE() {
+/* FIXME(t17253769) commented out for flakiness (see above) */
-  auto ptr = genericModelFunction<int>();
+// int genericModelFunctionNPE() {
-  return *ptr;
+//   auto ptr = genericModelFunction<int>();
-}
+//   return *ptr;
-int nonGenericModelFunctionNPE() {
+// }
+
+int nonGenericModelFunctionNoNPE() {
   auto ptr = nonGenericModelFunction<int>(); // this will be skip function
   return *ptr;
 }

infer/tests/codetoanalyze/cpp/errors/issues.exp

@@ -7,8 +7,6 @@ codetoanalyze/cpp/errors/c_tests/c_bugs.cpp, malloc_memory_leak_is_reported, 0,
 codetoanalyze/cpp/errors/c_tests/c_bugs.cpp, memcpy_spec_is_found, 3, NULL_DEREFERENCE, [start of procedure memcpy_spec_is_found()]
 codetoanalyze/cpp/errors/c_tests/c_bugs.cpp, resource_leak_is_reported, 0, RESOURCE_LEAK, [start of procedure resource_leak_is_reported()]
 codetoanalyze/cpp/errors/c_tests/c_bugs.cpp, resource_leak_is_reported, 0, RETURN_VALUE_IGNORED, [start of procedure resource_leak_is_reported()]
-codetoanalyze/cpp/errors/generic_models/generic_model_test.cpp, genericModelFunctionNPE, 2, NULL_DEREFERENCE, [start of procedure genericModelFunctionNPE(),start of procedure genericModelFunction<long_long>(),return from a call to genericModelFunction<long_long>]
-codetoanalyze/cpp/errors/generic_models/generic_model_test.cpp, genericModelNPE, 3, NULL_DEREFERENCE, [start of procedure genericModelNPE(),start of procedure GenericModelClass,return from a call to GenericModelClass<int>_GenericModelClass,start of procedure get,return from a call to GenericModelClass<long_long>_get]
 codetoanalyze/cpp/errors/include_header/header.h, header::A_div0, 0, DIVIDE_BY_ZERO, [start of procedure div0]
 codetoanalyze/cpp/errors/include_header/header.h, header::div0_fun, 0, DIVIDE_BY_ZERO, [start of procedure header::div0_fun()]
 codetoanalyze/cpp/errors/include_header/header2.h, header2::B<header2::A>_div0, 0, DIVIDE_BY_ZERO, [start of procedure div0]