merging,

googlemock/include/gmock/gmock-generated-function-mockers.h.pump

@@ -94,6 +94,58 @@ class FunctionMocker<R($As)> : public
 
 
 ]]
+// Removes the given pointer; this is a helper for the expectation setter method
+// for parameterless matchers.
+//
+// We want to make sure that the user cannot set a parameterless expectation on
+// overloaded methods, including methods which are overloaded on const. Example:
+//
+//   class MockClass {
+//     MOCK_METHOD0(GetName, string&());
+//     MOCK_CONST_METHOD0(GetName, const string&());
+//   };
+//
+//   TEST() {
+//     // This should be an error, as it's not clear which overload is expected.
+//     EXPECT_CALL(mock, GetName).WillOnce(ReturnRef(value));
+//   }
+//
+// Here are the generated expectation-setter methods:
+//
+//   class MockClass {
+//     // Overload 1
+//     MockSpec<string&()> gmock_GetName() { … }
+//     // Overload 2. Declared const so that the compiler will generate an
+//     // error when trying to resolve between this and overload 4 in
+//     // 'gmock_GetName(WithoutMatchers(), nullptr)'.
+//     MockSpec<string&()> gmock_GetName(
+//         const WithoutMatchers&, const Function<string&()>*) const {
+//       // Removes const from this, calls overload 1
+//       return AdjustConstness_(this)->gmock_GetName();
+//     }
+//
+//     // Overload 3
+//     const string& gmock_GetName() const { … }
+//     // Overload 4
+//     MockSpec<const string&()> gmock_GetName(
+//         const WithoutMatchers&, const Function<const string&()>*) const {
+//       // Does not remove const, calls overload 3
+//       return AdjustConstness_const(this)->gmock_GetName();
+//     }
+//   }
+//
+template <typename MockType>
+const MockType* AdjustConstness_const(const MockType* mock) {
+  return mock;
+}
+
+// Removes const from and returns the given pointer; this is a helper for the 
+// expectation setter method for parameterless matchers.
+template <typename MockType>
+MockType* AdjustConstness_(const MockType* mock) {
+  return const_cast<MockType*>(mock);
+}
+
 }  // namespace internal
 
 // The style guide prohibits "using" statements in a namespace scope
@@ -135,6 +187,8 @@ $var as = [[$for j, \
 $var matcher_arg_as = [[$for j, \
                      [[GMOCK_MATCHER_(tn, $j, __VA_ARGS__) gmock_a$j]]]]
 $var matcher_as = [[$for j, [[gmock_a$j]]]]
+$var anything_matchers = [[$for j, \
+                     [[::testing::A<GMOCK_ARG_(tn, $j, __VA_ARGS__)>()]]]]
 // INTERNAL IMPLEMENTATION - DON'T USE IN USER CODE!!!
 #define GMOCK_METHOD$i[[]]_(tn, constness, ct, Method, ...) \
   GMOCK_RESULT_(tn, __VA_ARGS__) ct Method( \
@@ -150,6 +204,12 @@ $var matcher_as = [[$for j, [[gmock_a$j]]]]
     GMOCK_MOCKER_($i, constness, Method).RegisterOwner(this); \
     return GMOCK_MOCKER_($i, constness, Method).With($matcher_as); \
   } \
+  ::testing::MockSpec<__VA_ARGS__> gmock_##Method( \
+      const ::testing::internal::WithoutMatchers&, \
+      constness ::testing::internal::Function<__VA_ARGS__>* ) const { \
+        return ::testing::internal::AdjustConstness_##constness(this)-> \
+            gmock_##Method($anything_matchers); \
+      } \
   mutable ::testing::FunctionMocker<__VA_ARGS__> GMOCK_MOCKER_($i, constness, Method)
 
 

googlemock/include/gmock/gmock-spec-builders.h

@@ -1282,6 +1282,13 @@ class MockSpec {
         file, line, source_text, matchers_);
   }
 
+  // This operator overload is used to swallow the superfluous parameter list
+  // introduced by the ON/EXPECT_CALL macros. See the macro comments for more
+  // explanation.
+  MockSpec<F>& operator()(const internal::WithoutMatchers&, void* const) {
+    return *this;
+  }
+
  private:
   template <typename Function>
   friend class internal::FunctionMocker;
@@ -1836,17 +1843,76 @@ inline Expectation::Expectation(internal::ExpectationBase& exp)  // NOLINT
 
 }  // namespace testing
 
-// A separate macro is required to avoid compile errors when the name
-// of the method used in call is a result of macro expansion.
-// See CompilesWithMethodNameExpandedFromMacro tests in
-// internal/gmock-spec-builders_test.cc for more details.
-#define GMOCK_ON_CALL_IMPL_(obj, call) \
-    ((obj).gmock_##call).InternalDefaultActionSetAt(__FILE__, __LINE__, \
-                                                    #obj, #call)
-#define ON_CALL(obj, call) GMOCK_ON_CALL_IMPL_(obj, call)
-
-#define GMOCK_EXPECT_CALL_IMPL_(obj, call) \
-    ((obj).gmock_##call).InternalExpectedAt(__FILE__, __LINE__, #obj, #call)
-#define EXPECT_CALL(obj, call) GMOCK_EXPECT_CALL_IMPL_(obj, call)
+// Implementation for ON_CALL and EXPECT_CALL macros. A separate macro is
+// required to avoid compile errors when the name of the method used in call is
+// a result of macro expansion. See CompilesWithMethodNameExpandedFromMacro
+// tests in internal/gmock-spec-builders_test.cc for more details.
+//
+// This macro supports statements both with and without parameter matchers. If
+// the parameter list is omitted, gMock will accept any parameters, which allows
+// tests to be written that don't need to encode the number of method
+// parameter. This technique may only be used for non-overloaded methods.
+//
+//   // These are the same:
+//   ON_CALL(mock, NoArgsMethod()).WillByDefault(…);
+//   ON_CALL(mock, NoArgsMethod).WillByDefault(…);
+//
+//   // As are these:
+//   ON_CALL(mock, TwoArgsMethod(_, _)).WillByDefault(…);
+//   ON_CALL(mock, TwoArgsMethod).WillByDefault(…);
+//
+//   // Can also specify args if you want, of course:
+//   ON_CALL(mock, TwoArgsMethod(_, 45)).WillByDefault(…);
+//
+//   // Overloads work as long as you specify parameters:
+//   ON_CALL(mock, OverloadedMethod(_)).WillByDefault(…);
+//   ON_CALL(mock, OverloadedMethod(_, _)).WillByDefault(…);
+//
+//   // Oops! Which overload did you want?
+//   ON_CALL(mock, OverloadedMethod).WillByDefault(…);
+//     => ERROR: call to member function 'gmock_OverloadedMethod' is ambiguous
+//
+// How this works: The mock class uses two overloads of the gmock_Method
+// expectation setter method plus an operator() overload on the MockSpec object.
+// In the matcher list form, the macro expands to:
+//
+//   // This statement:
+//   ON_CALL(mock, TwoArgsMethod(_, 45))…
+//
+//   // …expands to:
+//   mock.gmock_TwoArgsMethod(_, 45)(WithoutMatchers(), nullptr)…
+//   |-------------v---------------||------------v-------------|
+//       invokes first overload        swallowed by operator()
+//
+//   // …which is essentially:
+//   mock.gmock_TwoArgsMethod(_, 45)…
+//
+// Whereas the form without a matcher list:
+//
+//   // This statement:
+//   ON_CALL(mock, TwoArgsMethod)…
+//
+//   // …expands to:
+//   mock.gmock_TwoArgsMethod(WithoutMatchers(), nullptr)…
+//   |-----------------------v--------------------------|
+//                 invokes second overload
+//
+//   // …which is essentially:
+//   mock.gmock_TwoArgsMethod(_, _)…
+//
+// The WithoutMatchers() argument is used to disambiguate overloads and to
+// block the caller from accidentally invoking the second overload directly. The
+// second argument is an internal type derived from the method signature. The
+// failure to disambiguate two overloads of this method in the ON_CALL statement
+// is how we block callers from setting expectations on overloaded methods.
+#define GMOCK_ON_CALL_IMPL_(mock_expr, Setter, call)                          \
+  ((mock_expr).gmock_##call)(::testing::internal::GetWithoutMatchers(), NULL) \
+      .Setter(__FILE__, __LINE__, #mock_expr, #call)
+
+#define ON_CALL(obj, call) \
+  GMOCK_ON_CALL_IMPL_(obj, InternalDefaultActionSetAt, call)
+
+#define EXPECT_CALL(obj, call) \
+  GMOCK_ON_CALL_IMPL_(obj, InternalExpectedAt, call)
 
 #endif  // GMOCK_INCLUDE_GMOCK_GMOCK_SPEC_BUILDERS_H_

googlemock/include/gmock/internal/gmock-internal-utils.h

@@ -344,6 +344,21 @@ GTEST_API_ bool LogIsVisible(LogSeverity severity);
 GTEST_API_ void Log(LogSeverity severity, const std::string& message,
                     int stack_frames_to_skip);
 
+// A marker class that is used to resolve parameterless expectations to the
+// correct overload. This must not be instantiable, to prevent client code from
+// accidentally resolving to the overload; for example:
+//
+//    ON_CALL(mock, Method({}, nullptr))…
+//
+class WithoutMatchers {
+ private:
+  WithoutMatchers() {}
+  friend GTEST_API_ WithoutMatchers GetWithoutMatchers();
+};
+
+// Internal use only: access the singleton instance of WithoutMatchers.
+GTEST_API_ WithoutMatchers GetWithoutMatchers();
+
 // TODO(wan@google.com): group all type utilities together.
 
 // Type traits.

googlemock/src/gmock-internal-utils.cc

@@ -188,6 +188,8 @@ GTEST_API_ void Log(LogSeverity severity, const std::string& message,
   std::cout << ::std::flush;
 }
 
+GTEST_API_ WithoutMatchers GetWithoutMatchers() { return WithoutMatchers(); }
+
 GTEST_API_ void IllegalDoDefault(const char* file, int line) {
   internal::Assert(
       false, file, line,

googlemock/test/gmock-matchers_test.cc

@@ -59,13 +59,6 @@
 # include <forward_list>  // NOLINT
 #endif
 
-// Disable MSVC2015 warning for std::pair:
-// "decorated name length exceeded, name was truncated".
-#if defined _MSC_VER
-# pragma warning(push)
-# pragma warning(disable:4503)
-#endif
-
 #if GTEST_LANG_CXX11
 # include <type_traits>
 #endif
@@ -749,6 +742,13 @@ TEST(MatcherCastTest, NonImplicitlyConstructibleTypeWithOperatorEq) {
   EXPECT_FALSE(m3.Matches(239));
 }
 
+// ConvertibleFromAny does not work with MSVC. resulting in
+// error C2440: 'initializing': cannot convert from 'Eq' to 'M'
+// No constructor could take the source type, or constructor overload
+// resolution was ambiguous
+
+#if !defined _MSC_VER
+
 // The below ConvertibleFromAny struct is implicitly constructible from anything
 // and when in the same namespace can interact with other tests. In particular,
 // if it is in the same namespace as other tests and one removes
@@ -761,7 +761,7 @@ namespace convertible_from_any {
 struct ConvertibleFromAny {
   ConvertibleFromAny(int a_value) : value(a_value) {}
   template <typename T>
-  explicit ConvertibleFromAny(const T& /*a_value*/) : value(-1) {
+  ConvertibleFromAny(const T& /*a_value*/) : value(-1) {
     ADD_FAILURE() << "Conversion constructor called";
   }
   int value;
@@ -789,6 +789,8 @@ TEST(MatcherCastTest, FromConvertibleFromAny) {
 }
 }  // namespace convertible_from_any
 
+#endif  // !defined _MSC_VER
+
 struct IntReferenceWrapper {
   IntReferenceWrapper(const int& a_value) : value(&a_value) {}
   const int* value;
@@ -893,6 +895,8 @@ TEST(SafeMatcherCastTest, FromSameType) {
   EXPECT_FALSE(m2.Matches(1));
 }
 
+#if !defined _MSC_VER
+
 namespace convertible_from_any {
 TEST(SafeMatcherCastTest, ConversionConstructorIsUsed) {
   Matcher<ConvertibleFromAny> m = SafeMatcherCast<ConvertibleFromAny>(1);
@@ -908,6 +912,8 @@ TEST(SafeMatcherCastTest, FromConvertibleFromAny) {
 }
 }  // namespace convertible_from_any
 
+#endif  // !defined _MSC_VER
+
 TEST(SafeMatcherCastTest, ValueIsNotCopied) {
   int n = 42;
   Matcher<IntReferenceWrapper> m = SafeMatcherCast<IntReferenceWrapper>(n);
@@ -2539,7 +2545,7 @@ TEST(AllOfTest, VariadicMatchesWhenAllMatch) {
   ::testing::AllOf(1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11);
   Matcher<int> m = AllOf(Ne(1), Ne(2), Ne(3), Ne(4), Ne(5), Ne(6), Ne(7), Ne(8),
                          Ne(9), Ne(10), Ne(11));
-  EXPECT_THAT(Describe(m), EndsWith("and (isn't equal to 11))))))))))"));
+  EXPECT_THAT(Describe(m), EndsWith("and (isn't equal to 11)"));
   AllOfMatches(11, m);
   AllOfMatches(50, AllOf(Ne(1), Ne(2), Ne(3), Ne(4), Ne(5), Ne(6), Ne(7), Ne(8),
                          Ne(9), Ne(10), Ne(11), Ne(12), Ne(13), Ne(14), Ne(15),
@@ -2733,7 +2739,7 @@ TEST(AnyOfTest, VariadicMatchesWhenAnyMatches) {
   // on ADL.
   Matcher<int> m = ::testing::AnyOf(1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11);
 
-  EXPECT_THAT(Describe(m), EndsWith("or (is equal to 11))))))))))"));
+  EXPECT_THAT(Describe(m), EndsWith("or (is equal to 11)"));
   AnyOfMatches(11, m);
   AnyOfMatches(50, AnyOf(1, 2, 3, 4, 5, 6, 7, 8, 9, 10,
                          11, 12, 13, 14, 15, 16, 17, 18, 19, 20,
@@ -3093,6 +3099,44 @@ TEST(AllArgsTest, WorksInWithClause) {
   EXPECT_EQ(2, helper.Helper('a', 1));
 }
 
+class OptionalMatchersHelper {
+ public:
+  OptionalMatchersHelper() {}
+
+  MOCK_METHOD0(NoArgs, int());
+
+  MOCK_METHOD1(OneArg, int(int y));
+
+  MOCK_METHOD2(TwoArgs, int(char x, int y));
+
+  MOCK_METHOD1(Overloaded, int(char x));
+  MOCK_METHOD2(Overloaded, int(char x, int y));
+
+ private:
+  GTEST_DISALLOW_COPY_AND_ASSIGN_(OptionalMatchersHelper);
+};
+
+TEST(AllArgsTest, WorksWithoutMatchers) {
+  OptionalMatchersHelper helper;
+
+  ON_CALL(helper, NoArgs).WillByDefault(Return(10));
+  ON_CALL(helper, OneArg).WillByDefault(Return(20));
+  ON_CALL(helper, TwoArgs).WillByDefault(Return(30));
+
+  EXPECT_EQ(10, helper.NoArgs());
+  EXPECT_EQ(20, helper.OneArg(1));
+  EXPECT_EQ(30, helper.TwoArgs('\1', 2));
+
+  EXPECT_CALL(helper, NoArgs).Times(1);
+  EXPECT_CALL(helper, OneArg).WillOnce(Return(100));
+  EXPECT_CALL(helper, OneArg(17)).WillOnce(Return(200));
+  EXPECT_CALL(helper, TwoArgs).Times(0);
+
+  EXPECT_EQ(10, helper.NoArgs());
+  EXPECT_EQ(100, helper.OneArg(1));
+  EXPECT_EQ(200, helper.OneArg(17));
+}
+
 // Tests that ASSERT_THAT() and EXPECT_THAT() work when the value
 // matches the matcher.
 TEST(MatcherAssertionTest, WorksWhenMatcherIsSatisfied) {
@@ -6723,7 +6767,4 @@ TEST(NotTest, WorksOnMoveOnlyType) {
 }  // namespace gmock_matchers_test
 }  // namespace testing
 
-#if defined_MSC_VER
-# pragma warning(pop)
-#endif
 

googlemock/test/gmock-spec-builders_test.cc

@@ -89,6 +89,7 @@ using testing::Mock;
 using testing::NaggyMock;
 using testing::Ne;
 using testing::Return;
+using testing::SaveArg;
 using testing::Sequence;
 using testing::SetArgPointee;
 using testing::internal::ExpectationTester;
@@ -2681,6 +2682,75 @@ TEST(SynchronizationTest, CanCallMockMethodInAction) {
   // EXPECT_CALL() did not specify an action.
 }
 
+TEST(ParameterlessExpectationsTest, CanSetExpectationsWithoutMatchers) {
+  MockA a;
+  int do_a_arg0 = 0;
+  ON_CALL(a, DoA).WillByDefault(SaveArg<0>(&do_a_arg0));
+  int do_a_47_arg0 = 0;
+  ON_CALL(a, DoA(47)).WillByDefault(SaveArg<0>(&do_a_47_arg0));
+
+  a.DoA(17);
+  EXPECT_THAT(do_a_arg0, 17);
+  EXPECT_THAT(do_a_47_arg0, 0);
+  a.DoA(47);
+  EXPECT_THAT(do_a_arg0, 17);
+  EXPECT_THAT(do_a_47_arg0, 47);
+
+  ON_CALL(a, Binary).WillByDefault(Return(true));
+  ON_CALL(a, Binary(_, 14)).WillByDefault(Return(false));
+  EXPECT_THAT(a.Binary(14, 17), true);
+  EXPECT_THAT(a.Binary(17, 14), false);
+}
+
+TEST(ParameterlessExpectationsTest, CanSetExpectationsForOverloadedMethods) {
+  MockB b;
+  ON_CALL(b, DoB()).WillByDefault(Return(9));
+  ON_CALL(b, DoB(5)).WillByDefault(Return(11));
+
+  EXPECT_THAT(b.DoB(), 9);
+  EXPECT_THAT(b.DoB(1), 0);  // default value
+  EXPECT_THAT(b.DoB(5), 11);
+}
+
+struct MockWithConstMethods {
+ public:
+  MOCK_CONST_METHOD1(Foo, int(int));
+  MOCK_CONST_METHOD2(Bar, int(int, const char*));
+};
+
+TEST(ParameterlessExpectationsTest, CanSetExpectationsForConstMethods) {
+  MockWithConstMethods mock;
+  ON_CALL(mock, Foo).WillByDefault(Return(7));
+  ON_CALL(mock, Bar).WillByDefault(Return(33));
+
+  EXPECT_THAT(mock.Foo(17), 7);
+  EXPECT_THAT(mock.Bar(27, "purple"), 33);
+}
+
+class MockConstOverload {
+ public:
+  MOCK_METHOD1(Overloaded, int(int));
+  MOCK_CONST_METHOD1(Overloaded, int(int));
+};
+
+TEST(ParameterlessExpectationsTest,
+     CanSetExpectationsForConstOverloadedMethods) {
+  MockConstOverload mock;
+  ON_CALL(mock, Overloaded(_)).WillByDefault(Return(7));
+  ON_CALL(mock, Overloaded(5)).WillByDefault(Return(9));
+  ON_CALL(Const(mock), Overloaded(5)).WillByDefault(Return(11));
+  ON_CALL(Const(mock), Overloaded(7)).WillByDefault(Return(13));
+
+  EXPECT_THAT(mock.Overloaded(1), 7);
+  EXPECT_THAT(mock.Overloaded(5), 9);
+  EXPECT_THAT(mock.Overloaded(7), 7);
+
+  const MockConstOverload& const_mock = mock;
+  EXPECT_THAT(const_mock.Overloaded(1), 0);
+  EXPECT_THAT(const_mock.Overloaded(5), 11);
+  EXPECT_THAT(const_mock.Overloaded(7), 13);
+}
+
 }  // namespace
 
 // Allows the user to define their own main and then invoke gmock_main