Initial drop of Google Mock. The files are incomplete and thus may not build correctly yet.

1 files changed, 521 insertions, 0 deletions

diff --git a/test/gmock-internal-utils_test.cc b/test/gmock-internal-utils_test.cc
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+++ b/test/gmock-internal-utils_test.cc
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+// Copyright 2007, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+//
+// Author: wan@google.com (Zhanyong Wan)
+
+// Google Mock - a framework for writing C++ mock classes.
+//
+// This file tests the internal utilities.
+
+#include <gmock/internal/gmock-internal-utils.h>
+#include <map>
+#include <string>
+#include <sstream>
+#include <vector>
+#include <gmock/gmock.h>
+#include <gmock/internal/gmock-port.h>
+#include <gtest/gtest.h>
+#include <gtest/gtest-spi.h>
+
+namespace testing {
+namespace internal {
+
+namespace {
+
+using ::std::tr1::tuple;
+
+// Tests that CompileAssertTypesEqual compiles when the type arguments are
+// equal.
+TEST(CompileAssertTypesEqual, CompilesWhenTypesAreEqual) {
+  CompileAssertTypesEqual<void, void>();
+  CompileAssertTypesEqual<int*, int*>();
+}
+
+// Tests that RemoveReference does not affect non-reference types.
+TEST(RemoveReferenceTest, DoesNotAffectNonReferenceType) {
+  CompileAssertTypesEqual<int, RemoveReference<int>::type>();
+  CompileAssertTypesEqual<const char, RemoveReference<const char>::type>();
+}
+
+// Tests that RemoveReference removes reference from reference types.
+TEST(RemoveReferenceTest, RemovesReference) {
+  CompileAssertTypesEqual<int, RemoveReference<int&>::type>();
+  CompileAssertTypesEqual<const char, RemoveReference<const char&>::type>();
+}
+
+// Tests GMOCK_REMOVE_REFERENCE.
+
+template <typename T1, typename T2>
+void TestGMockRemoveReference() {
+  CompileAssertTypesEqual<T1, GMOCK_REMOVE_REFERENCE(T2)>();
+}
+
+TEST(RemoveReferenceTest, MacroVersion) {
+  TestGMockRemoveReference<int, int>();
+  TestGMockRemoveReference<const char, const char&>();
+}
+
+
+// Tests that RemoveConst does not affect non-const types.
+TEST(RemoveConstTest, DoesNotAffectNonConstType) {
+  CompileAssertTypesEqual<int, RemoveConst<int>::type>();
+  CompileAssertTypesEqual<char&, RemoveConst<char&>::type>();
+}
+
+// Tests that RemoveConst removes const from const types.
+TEST(RemoveConstTest, RemovesConst) {
+  CompileAssertTypesEqual<int, RemoveConst<const int>::type>();
+}
+
+// Tests GMOCK_REMOVE_CONST.
+
+template <typename T1, typename T2>
+void TestGMockRemoveConst() {
+  CompileAssertTypesEqual<T1, GMOCK_REMOVE_CONST(T2)>();
+}
+
+TEST(RemoveConstTest, MacroVersion) {
+  TestGMockRemoveConst<int, int>();
+  TestGMockRemoveConst<double&, double&>();
+  TestGMockRemoveConst<char, const char>();
+}
+
+// Tests that AddReference does not affect reference types.
+TEST(AddReferenceTest, DoesNotAffectReferenceType) {
+  CompileAssertTypesEqual<int&, AddReference<int&>::type>();
+  CompileAssertTypesEqual<const char&, AddReference<const char&>::type>();
+}
+
+// Tests that AddReference adds reference to non-reference types.
+TEST(AddReferenceTest, AddsReference) {
+  CompileAssertTypesEqual<int&, AddReference<int>::type>();
+  CompileAssertTypesEqual<const char&, AddReference<const char>::type>();
+}
+
+// Tests GMOCK_ADD_REFERENCE.
+
+template <typename T1, typename T2>
+void TestGMockAddReference() {
+  CompileAssertTypesEqual<T1, GMOCK_ADD_REFERENCE(T2)>();
+}
+
+TEST(AddReferenceTest, MacroVersion) {
+  TestGMockAddReference<int&, int>();
+  TestGMockAddReference<const char&, const char&>();
+}
+
+// Tests GMOCK_REFERENCE_TO_CONST.
+
+template <typename T1, typename T2>
+void TestGMockReferenceToConst() {
+  CompileAssertTypesEqual<T1, GMOCK_REFERENCE_TO_CONST(T2)>();
+}
+
+TEST(GMockReferenceToConstTest, Works) {
+  TestGMockReferenceToConst<const char&, char>();
+  TestGMockReferenceToConst<const int&, const int>();
+  TestGMockReferenceToConst<const double&, double>();
+  TestGMockReferenceToConst<const string&, const string&>();
+}
+
+TEST(PointeeOfTest, WorksForSmartPointers) {
+  CompileAssertTypesEqual<const char,
+      PointeeOf<internal::linked_ptr<const char> >::type>();
+}
+
+TEST(PointeeOfTest, WorksForRawPointers) {
+  CompileAssertTypesEqual<int, PointeeOf<int*>::type>();
+  CompileAssertTypesEqual<const char, PointeeOf<const char*>::type>();
+  CompileAssertTypesEqual<void, PointeeOf<void*>::type>();
+}
+
+TEST(GetRawPointerTest, WorksForSmartPointers) {
+  const char* const raw_p4 = new const char('a');  // NOLINT
+  const internal::linked_ptr<const char> p4(raw_p4);
+  EXPECT_EQ(raw_p4, GetRawPointer(p4));
+}
+
+TEST(GetRawPointerTest, WorksForRawPointers) {
+  int* p = NULL;
+  EXPECT_EQ(NULL, GetRawPointer(p));
+  int n = 1;
+  EXPECT_EQ(&n, GetRawPointer(&n));
+}
+
+class Base {};
+class Derived : public Base {};
+
+// Tests that ImplicitlyConvertible<T1, T2>::value is a compile-time constant.
+TEST(ImplicitlyConvertibleTest, ValueIsCompileTimeConstant) {
+  GMOCK_COMPILE_ASSERT((ImplicitlyConvertible<int, int>::value), const_true);
+  GMOCK_COMPILE_ASSERT((!ImplicitlyConvertible<void*, int*>::value), const_false);
+}
+
+// Tests that ImplicitlyConvertible<T1, T2>::value is true when T1 can
+// be implicitly converted to T2.
+TEST(ImplicitlyConvertibleTest, ValueIsTrueWhenConvertible) {
+  EXPECT_TRUE((ImplicitlyConvertible<int, double>::value));
+  EXPECT_TRUE((ImplicitlyConvertible<double, int>::value));
+  EXPECT_TRUE((ImplicitlyConvertible<int*, void*>::value));
+  EXPECT_TRUE((ImplicitlyConvertible<int*, const int*>::value));
+  EXPECT_TRUE((ImplicitlyConvertible<Derived&, const Base&>::value));
+  EXPECT_TRUE((ImplicitlyConvertible<const Base, Base>::value));
+}
+
+// Tests that ImplicitlyConvertible<T1, T2>::value is false when T1
+// cannot be implicitly converted to T2.
+TEST(ImplicitlyConvertibleTest, ValueIsFalseWhenNotConvertible) {
+  EXPECT_FALSE((ImplicitlyConvertible<double, int*>::value));
+  EXPECT_FALSE((ImplicitlyConvertible<void*, int*>::value));
+  EXPECT_FALSE((ImplicitlyConvertible<const int*, int*>::value));
+  EXPECT_FALSE((ImplicitlyConvertible<Base&, Derived&>::value));
+}
+
+// Tests that IsAProtocolMessage<T>::value is a compile-time constant.
+TEST(IsAProtocolMessageTest, ValueIsCompileTimeConstant) {
+  GMOCK_COMPILE_ASSERT(IsAProtocolMessage<ProtocolMessage>::value, const_true);
+  GMOCK_COMPILE_ASSERT(!IsAProtocolMessage<int>::value, const_false);
+}
+
+// Tests that IsAProtocolMessage<T>::value is true when T is
+// ProtocolMessage or a sub-class of it.
+TEST(IsAProtocolMessageTest, ValueIsTrueWhenTypeIsAProtocolMessage) {
+  EXPECT_TRUE(IsAProtocolMessage<ProtocolMessage>::value);
+#if GMOCK_HAS_PROTOBUF_
+  EXPECT_TRUE(IsAProtocolMessage<const TestMessage>::value);
+#endif  // GMOCK_HAS_PROTOBUF_
+}
+
+// Tests that IsAProtocolMessage<T>::value is false when T is neither
+// ProtocolMessage nor a sub-class of it.
+TEST(IsAProtocolMessageTest, ValueIsFalseWhenTypeIsNotAProtocolMessage) {
+  EXPECT_FALSE(IsAProtocolMessage<int>::value);
+  EXPECT_FALSE(IsAProtocolMessage<const Base>::value);
+}
+
+// Tests IsContainerTest.
+
+class NonContainer {};
+
+TEST(IsContainerTestTest, WorksForNonContainer) {
+  EXPECT_EQ(sizeof(IsNotContainer), sizeof(IsContainerTest<int>(0)));
+  EXPECT_EQ(sizeof(IsNotContainer), sizeof(IsContainerTest<char[5]>(0)));
+  EXPECT_EQ(sizeof(IsNotContainer), sizeof(IsContainerTest<NonContainer>(0)));
+}
+
+TEST(IsContainerTestTest, WorksForContainer) {
+  EXPECT_EQ(sizeof(IsContainer), sizeof(IsContainerTest<std::vector<bool> >(0)));
+  EXPECT_EQ(sizeof(IsContainer), sizeof(IsContainerTest<std::map<int, double> >(0)));
+}
+
+// Tests the TupleMatches() template function.
+
+TEST(TupleMatchesTest, WorksForSize0) {
+  tuple<> matchers;
+  tuple<> values;
+
+  EXPECT_TRUE(TupleMatches(matchers, values));
+}
+
+TEST(TupleMatchesTest, WorksForSize1) {
+  tuple<Matcher<int> > matchers(Eq(1));
+  tuple<int> values1(1),
+      values2(2);
+
+  EXPECT_TRUE(TupleMatches(matchers, values1));
+  EXPECT_FALSE(TupleMatches(matchers, values2));
+}
+
+TEST(TupleMatchesTest, WorksForSize2) {
+  tuple<Matcher<int>, Matcher<char> > matchers(Eq(1), Eq('a'));
+  tuple<int, char> values1(1, 'a'),
+      values2(1, 'b'),
+      values3(2, 'a'),
+      values4(2, 'b');
+
+  EXPECT_TRUE(TupleMatches(matchers, values1));
+  EXPECT_FALSE(TupleMatches(matchers, values2));
+  EXPECT_FALSE(TupleMatches(matchers, values3));
+  EXPECT_FALSE(TupleMatches(matchers, values4));
+}
+
+TEST(TupleMatchesTest, WorksForSize5) {
+  tuple<Matcher<int>, Matcher<char>, Matcher<bool>, Matcher<long>,  // NOLINT
+      Matcher<string> >
+      matchers(Eq(1), Eq('a'), Eq(true), Eq(2L), Eq("hi"));
+  tuple<int, char, bool, long, string>  // NOLINT
+      values1(1, 'a', true, 2L, "hi"),
+      values2(1, 'a', true, 2L, "hello"),
+      values3(2, 'a', true, 2L, "hi");
+
+  EXPECT_TRUE(TupleMatches(matchers, values1));
+  EXPECT_FALSE(TupleMatches(matchers, values2));
+  EXPECT_FALSE(TupleMatches(matchers, values3));
+}
+
+// Tests that Assert(true, ...) succeeds.
+TEST(AssertTest, SucceedsOnTrue) {
+  Assert(true, __FILE__, __LINE__, "This should succeed.");
+  Assert(true, __FILE__, __LINE__);  // This should succeed too.
+}
+
+#ifdef GTEST_HAS_DEATH_TEST
+
+// Tests that Assert(false, ...) generates a fatal failure.
+TEST(AssertTest, FailsFatallyOnFalse) {
+  EXPECT_DEATH({  // NOLINT
+    Assert(false, __FILE__, __LINE__, "This should fail.");
+  }, "");
+
+  EXPECT_DEATH({  // NOLINT
+    Assert(false, __FILE__, __LINE__);
+  }, "");
+}
+
+#endif  // GTEST_HAS_DEATH_TEST
+
+// Tests that Expect(true, ...) succeeds.
+TEST(ExpectTest, SucceedsOnTrue) {
+  Expect(true, __FILE__, __LINE__, "This should succeed.");
+  Expect(true, __FILE__, __LINE__);  // This should succeed too.
+}
+
+// Tests that Expect(false, ...) generates a non-fatal failure.
+TEST(ExpectTest, FailsNonfatallyOnFalse) {
+  EXPECT_NONFATAL_FAILURE({  // NOLINT
+    Expect(false, __FILE__, __LINE__, "This should fail.");
+  }, "This should fail");
+
+  EXPECT_NONFATAL_FAILURE({  // NOLINT
+    Expect(false, __FILE__, __LINE__);
+  }, "Expectation failed");
+}
+
+// TODO(wan@google.com): find a way to re-enable these tests.
+#if 0
+
+// Tests the Log() function.
+
+// Verifies that Log() behaves correctly for the given verbosity level
+// and log severity.
+void TestLogWithSeverity(const string& verbosity, LogSeverity severity,
+                         bool should_print) {
+  const string old_flag = GMOCK_FLAG(verbose);
+  GMOCK_FLAG(verbose) = verbosity;
+  CaptureTestStdout();
+  Log(severity, "Test log.\n", 0);
+  if (should_print) {
+    EXPECT_PRED2(RE::FullMatch,
+                 GetCapturedTestStdout(),
+                 severity == WARNING ?
+                 "\nGMOCK WARNING:\nTest log\\.\nStack trace:\n[\\s\\S]*" :
+                 "\nTest log\\.\nStack trace:\n[\\s\\S]*");
+  } else {
+    EXPECT_EQ("", GetCapturedTestStdout());
+  }
+  GMOCK_FLAG(verbose) = old_flag;
+}
+
+// Tests that when the stack_frames_to_skip parameter is negative,
+// Log() doesn't include the stack trace in the output.
+TEST(LogTest, NoStackTraceWhenStackFramesToSkipIsNegative) {
+  GMOCK_FLAG(verbose) = kInfoVerbosity;
+  CaptureTestStdout();
+  Log(INFO, "Test log.\n", -1);
+  EXPECT_EQ("\nTest log.\n", GetCapturedTestStdout());
+}
+
+// Tests that in opt mode, a positive stack_frames_to_skip argument is
+// treated as 0.
+TEST(LogTest, NoSkippingStackFrameInOptMode) {
+  CaptureTestStdout();
+  Log(WARNING, "Test log.\n", 100);
+  const string log = GetCapturedTestStdout();
+#ifdef NDEBUG
+  // In opt mode, no stack frame should be skipped.
+  EXPECT_THAT(log, ContainsRegex("\nGMOCK WARNING:\n"
+                                 "Test log\\.\n"
+                                 "Stack trace:\n"
+                                 ".+"));
+#else
+  // In dbg mode, the stack frames should be skipped.
+  EXPECT_EQ("\nGMOCK WARNING:\n"
+            "Test log.\n"
+            "Stack trace:\n", log);
+#endif  // NDEBUG
+}
+
+// Tests that all logs are printed when the value of the
+// --gmock_verbose flag is "info".
+TEST(LogTest, AllLogsArePrintedWhenVerbosityIsInfo) {
+  TestLogWithSeverity(kInfoVerbosity, INFO, true);
+  TestLogWithSeverity(kInfoVerbosity, WARNING, true);
+}
+
+// Tests that only warnings are printed when the value of the
+// --gmock_verbose flag is "warning".
+TEST(LogTest, OnlyWarningsArePrintedWhenVerbosityIsWarning) {
+  TestLogWithSeverity(kWarningVerbosity, INFO, false);
+  TestLogWithSeverity(kWarningVerbosity, WARNING, true);
+}
+
+// Tests that no logs are printed when the value of the
+// --gmock_verbose flag is "error".
+TEST(LogTest, NoLogsArePrintedWhenVerbosityIsError) {
+  TestLogWithSeverity(kErrorVerbosity, INFO, false);
+  TestLogWithSeverity(kErrorVerbosity, WARNING, false);
+}
+
+// Tests that only warnings are printed when the value of the
+// --gmock_verbose flag is invalid.
+TEST(LogTest, OnlyWarningsArePrintedWhenVerbosityIsInvalid) {
+  TestLogWithSeverity("invalid", INFO, false);
+  TestLogWithSeverity("invalid", WARNING, true);
+}
+
+#endif  // 0
+
+TEST(TypeTraitsTest, true_type) {
+  EXPECT_TRUE(true_type::value);
+}
+
+TEST(TypeTraitsTest, false_type) {
+  EXPECT_FALSE(false_type::value);
+}
+
+TEST(TypeTraitsTest, is_reference) {
+  EXPECT_FALSE(is_reference<int>::value);
+  EXPECT_FALSE(is_reference<char*>::value);
+  EXPECT_TRUE(is_reference<const int&>::value);
+}
+
+TEST(TypeTraitsTest, is_pointer) {
+  EXPECT_FALSE(is_pointer<int>::value);
+  EXPECT_FALSE(is_pointer<char&>::value);
+  EXPECT_TRUE(is_pointer<const int*>::value);
+}
+
+TEST(TypeTraitsTest, type_equals) {
+  EXPECT_FALSE((type_equals<int, const int>::value));
+  EXPECT_FALSE((type_equals<int, int&>::value));
+  EXPECT_FALSE((type_equals<int, double>::value));
+  EXPECT_TRUE((type_equals<char, char>::value));
+}
+
+TEST(TypeTraitsTest, remove_reference) {
+  EXPECT_TRUE((type_equals<char, remove_reference<char&>::type>::value));
+  EXPECT_TRUE((type_equals<const int,
+               remove_reference<const int&>::type>::value));
+  EXPECT_TRUE((type_equals<int, remove_reference<int>::type>::value));
+  EXPECT_TRUE((type_equals<double*, remove_reference<double*>::type>::value));
+}
+
+// TODO(wan@google.com): find a way to re-enable these tests.
+#if 0
+
+// Verifies that Log() behaves correctly for the given verbosity level
+// and log severity.
+string GrabOutput(void(*logger)(), const char* verbosity) {
+  const string saved_flag = GMOCK_FLAG(verbose);
+  GMOCK_FLAG(verbose) = verbosity;
+  CaptureTestStdout();
+  logger();
+  GMOCK_FLAG(verbose) = saved_flag;
+  return GetCapturedTestStdout();
+}
+
+class DummyMock {
+ public:
+  MOCK_METHOD0(TestMethod, void());
+  MOCK_METHOD1(TestMethodArg, void(int dummy));
+};
+
+void ExpectCallLogger() {
+  DummyMock mock;
+  EXPECT_CALL(mock, TestMethod());
+  mock.TestMethod();
+};
+
+// Verifies that EXPECT_CALL logs if the --gmock_verbose flag is set to "info".
+TEST(ExpectCallTest, LogsWhenVerbosityIsInfo) {
+  EXPECT_THAT(GrabOutput(ExpectCallLogger, kInfoVerbosity),
+              HasSubstr("EXPECT_CALL(mock, TestMethod())"));
+}
+
+// Verifies that EXPECT_CALL doesn't log
+// if the --gmock_verbose flag is set to "warning".
+TEST(ExpectCallTest, DoesNotLogWhenVerbosityIsWarning) {
+  EXPECT_EQ("", GrabOutput(ExpectCallLogger, kWarningVerbosity));
+}
+
+// Verifies that EXPECT_CALL doesn't log
+// if the --gmock_verbose flag is set to "error".
+TEST(ExpectCallTest,  DoesNotLogWhenVerbosityIsError) {
+  EXPECT_EQ("", GrabOutput(ExpectCallLogger, kErrorVerbosity));
+}
+
+void OnCallLogger() {
+  DummyMock mock;
+  ON_CALL(mock, TestMethod());
+};
+
+// Verifies that ON_CALL logs if the --gmock_verbose flag is set to "info".
+TEST(OnCallTest, LogsWhenVerbosityIsInfo) {
+  EXPECT_THAT(GrabOutput(OnCallLogger, kInfoVerbosity),
+              HasSubstr("ON_CALL(mock, TestMethod())"));
+}
+
+// Verifies that ON_CALL doesn't log
+// if the --gmock_verbose flag is set to "warning".
+TEST(OnCallTest, DoesNotLogWhenVerbosityIsWarning) {
+  EXPECT_EQ("", GrabOutput(OnCallLogger, kWarningVerbosity));
+}
+
+// Verifies that ON_CALL doesn't log if
+// the --gmock_verbose flag is set to "error".
+TEST(OnCallTest, DoesNotLogWhenVerbosityIsError) {
+  EXPECT_EQ("", GrabOutput(OnCallLogger, kErrorVerbosity));
+}
+
+void OnCallAnyArgumentLogger() {
+  DummyMock mock;
+  ON_CALL(mock, TestMethodArg(_));
+}
+
+// Verifies that ON_CALL prints provided _ argument.
+TEST(OnCallTest, LogsAnythingArgument) {
+  EXPECT_THAT(GrabOutput(OnCallAnyArgumentLogger, kInfoVerbosity),
+              HasSubstr("ON_CALL(mock, TestMethodArg(_)"));
+}
+
+#endif  // 0
+
+}  // namespace
+}  // namespace internal
+}  // namespace testing