fix leak in a test, make the sanitizer bot green

[oota-llvm.git] / unittests / Support / ErrorOrTest.cpp

diff --git a/unittests/Support/ErrorOrTest.cpp b/unittests/Support/ErrorOrTest.cpp
index 8ce7160ba36f3c16b400f4db90ebbed5d740f980..73d0e3f2bb711f12656176f742b1f8a4b0c69787 100644 (file)
--- a/unittests/Support/ErrorOrTest.cpp
+++ b/unittests/Support/ErrorOrTest.cpp
@@ -8,9 +8,8 @@
 //===----------------------------------------------------------------------===//
 
 #include "llvm/Support/ErrorOr.h"
-
+#include "llvm/Support/Errc.h"
 #include "gtest/gtest.h"
-
 #include <memory>
 
 using namespace llvm;
@@ -18,24 +17,29 @@ using namespace llvm;
 namespace {
 
 ErrorOr<int> t1() {return 1;}
-ErrorOr<int> t2() {return make_error_code(errc::invalid_argument);}
+ErrorOr<int> t2() { return errc::invalid_argument; }
 
 TEST(ErrorOr, SimpleValue) {
   ErrorOr<int> a = t1();
-  EXPECT_TRUE(a);
+  // FIXME: This is probably a bug in gtest. EXPECT_TRUE should expand to
+  // include the !! to make it friendly to explicit bool operators.
+  EXPECT_TRUE(!!a);
   EXPECT_EQ(1, *a);
 
+  ErrorOr<int> b = a;
+  EXPECT_EQ(1, *b);
+
   a = t2();
   EXPECT_FALSE(a);
-  EXPECT_EQ(errc::invalid_argument, a);
+  EXPECT_EQ(a.getError(), errc::invalid_argument);
+#ifdef EXPECT_DEBUG_DEATH
   EXPECT_DEBUG_DEATH(*a, "Cannot get value when an error exists");
+#endif
 }
 
-#if LLVM_HAS_CXX11_STDLIB
 ErrorOr<std::unique_ptr<int> > t3() {
   return std::unique_ptr<int>(new int(3));
 }
-#endif
 
 TEST(ErrorOr, Types) {
   int x;
@@ -43,38 +47,54 @@ TEST(ErrorOr, Types) {
   *a = 42;
   EXPECT_EQ(42, x);
 
-#if LLVM_HAS_CXX11_STDLIB
   // Move only types.
   EXPECT_EQ(3, **t3());
-#endif
 }
-} // end anon namespace
 
-struct InvalidArgError {
-  InvalidArgError() {}
-  InvalidArgError(std::string S) : ArgName(S) {}
-  std::string ArgName;
-};
-
-#if LLVM_HAS_CXX11_STDLIB
-namespace llvm {
-template<>
-struct ErrorOrUserDataTraits<InvalidArgError> : std::true_type {
-  static error_code error() {
-    return make_error_code(errc::invalid_argument);
-  }
-};
-} // end namespace lld
-
-ErrorOr<int> t4() {
-  return InvalidArgError("adena");
+struct B {};
+struct D : B {};
+
+TEST(ErrorOr, Covariant) {
+  ErrorOr<B*> b(ErrorOr<D*>(nullptr));
+  b = ErrorOr<D*>(nullptr);
+
+  ErrorOr<std::unique_ptr<B> > b1(ErrorOr<std::unique_ptr<D> >(nullptr));
+  b1 = ErrorOr<std::unique_ptr<D> >(nullptr);
+
+  ErrorOr<std::unique_ptr<int>> b2(ErrorOr<int *>(nullptr));
+  ErrorOr<int *> b3(nullptr);
+  ErrorOr<std::unique_ptr<int>> b4(b3);
 }
 
-namespace {
-TEST(ErrorOr, UserErrorData) {
-  ErrorOr<int> a = t4();
-  EXPECT_EQ(errc::invalid_argument, a);
-  EXPECT_EQ("adena", t4().getError<InvalidArgError>().ArgName);
+TEST(ErrorOr, Comparison) {
+  ErrorOr<int> x(errc::no_such_file_or_directory);
+  EXPECT_EQ(x, errc::no_such_file_or_directory);
 }
+
+// ErrorOr<int*> x(nullptr);
+// ErrorOr<std::unique_ptr<int>> y = x; // invalid conversion
+static_assert(
+    !std::is_convertible<const ErrorOr<int *> &,
+                         ErrorOr<std::unique_ptr<int>>>::value,
+    "do not invoke explicit ctors in implicit conversion from lvalue");
+
+// ErrorOr<std::unique_ptr<int>> y = ErrorOr<int*>(nullptr); // invalid
+//                                                           // conversion
+static_assert(
+    !std::is_convertible<ErrorOr<int *> &&,
+                         ErrorOr<std::unique_ptr<int>>>::value,
+    "do not invoke explicit ctors in implicit conversion from rvalue");
+
+// ErrorOr<int*> x(nullptr);
+// ErrorOr<std::unique_ptr<int>> y;
+// y = x; // invalid conversion
+static_assert(!std::is_assignable<ErrorOr<std::unique_ptr<int>>,
+                                  const ErrorOr<int *> &>::value,
+              "do not invoke explicit ctors in assignment");
+
+// ErrorOr<std::unique_ptr<int>> x;
+// x = ErrorOr<int*>(nullptr); // invalid conversion
+static_assert(!std::is_assignable<ErrorOr<std::unique_ptr<int>>,
+                                  ErrorOr<int *> &&>::value,
+              "do not invoke explicit ctors in assignment");
 } // end anon namespace
-#endif