libweave: Added base/ files required by libweave
These files cloned from
https://android.googlesource.com/platform/external/libchrome/+/3ca9d0096f5618f5bbad8b1363a069d13fc3026e
They are unchanged and not included into build yet.
BUG=brillo:1256
TEST=`FEATURES=test emerge-gizmo libweave buffet`
Change-Id: I91ccf741ffa3f8fc09f83ae7f6adfa279845434c
111
Change-Id: I27ef0b115216f9fd9865abecaf9e63749ec7a35c
Reviewed-on: https://chromium-review.googlesource.com/294331
Reviewed-by: Vitaly Buka <vitalybuka@chromium.org>
Commit-Queue: Vitaly Buka <vitalybuka@chromium.org>
Tested-by: Vitaly Buka <vitalybuka@chromium.org>
diff --git a/libweave/external/base/bind_unittest.cc b/libweave/external/base/bind_unittest.cc
new file mode 100644
index 0000000..f885403
--- /dev/null
+++ b/libweave/external/base/bind_unittest.cc
@@ -0,0 +1,829 @@
+// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "base/bind.h"
+
+#include "base/callback.h"
+#include "base/memory/ref_counted.h"
+#include "base/memory/scoped_ptr.h"
+#include "base/memory/weak_ptr.h"
+#include "testing/gmock/include/gmock/gmock.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+using ::testing::Mock;
+using ::testing::Return;
+using ::testing::StrictMock;
+
+namespace base {
+namespace {
+
+class IncompleteType;
+
+class NoRef {
+ public:
+ NoRef() {}
+
+ MOCK_METHOD0(VoidMethod0, void(void));
+ MOCK_CONST_METHOD0(VoidConstMethod0, void(void));
+
+ MOCK_METHOD0(IntMethod0, int(void));
+ MOCK_CONST_METHOD0(IntConstMethod0, int(void));
+
+ private:
+ // Particularly important in this test to ensure no copies are made.
+ DISALLOW_COPY_AND_ASSIGN(NoRef);
+};
+
+class HasRef : public NoRef {
+ public:
+ HasRef() {}
+
+ MOCK_CONST_METHOD0(AddRef, void(void));
+ MOCK_CONST_METHOD0(Release, bool(void));
+
+ private:
+ // Particularly important in this test to ensure no copies are made.
+ DISALLOW_COPY_AND_ASSIGN(HasRef);
+};
+
+class HasRefPrivateDtor : public HasRef {
+ private:
+ ~HasRefPrivateDtor() {}
+};
+
+static const int kParentValue = 1;
+static const int kChildValue = 2;
+
+class Parent {
+ public:
+ void AddRef(void) const {}
+ void Release(void) const {}
+ virtual void VirtualSet() { value = kParentValue; }
+ void NonVirtualSet() { value = kParentValue; }
+ int value;
+};
+
+class Child : public Parent {
+ public:
+ void VirtualSet() override { value = kChildValue; }
+ void NonVirtualSet() { value = kChildValue; }
+};
+
+class NoRefParent {
+ public:
+ virtual void VirtualSet() { value = kParentValue; }
+ void NonVirtualSet() { value = kParentValue; }
+ int value;
+};
+
+class NoRefChild : public NoRefParent {
+ void VirtualSet() override { value = kChildValue; }
+ void NonVirtualSet() { value = kChildValue; }
+};
+
+// Used for probing the number of copies that occur if a type must be coerced
+// during argument forwarding in the Run() methods.
+struct DerivedCopyCounter {
+ DerivedCopyCounter(int* copies, int* assigns)
+ : copies_(copies), assigns_(assigns) {
+ }
+ int* copies_;
+ int* assigns_;
+};
+
+// Used for probing the number of copies in an argument.
+class CopyCounter {
+ public:
+ CopyCounter(int* copies, int* assigns)
+ : copies_(copies), assigns_(assigns) {
+ }
+
+ CopyCounter(const CopyCounter& other)
+ : copies_(other.copies_),
+ assigns_(other.assigns_) {
+ (*copies_)++;
+ }
+
+ // Probing for copies from coercion.
+ explicit CopyCounter(const DerivedCopyCounter& other)
+ : copies_(other.copies_),
+ assigns_(other.assigns_) {
+ (*copies_)++;
+ }
+
+ const CopyCounter& operator=(const CopyCounter& rhs) {
+ copies_ = rhs.copies_;
+ assigns_ = rhs.assigns_;
+
+ if (assigns_) {
+ (*assigns_)++;
+ }
+
+ return *this;
+ }
+
+ int copies() const {
+ return *copies_;
+ }
+
+ private:
+ int* copies_;
+ int* assigns_;
+};
+
+class DeleteCounter {
+ public:
+ explicit DeleteCounter(int* deletes)
+ : deletes_(deletes) {
+ }
+
+ ~DeleteCounter() {
+ (*deletes_)++;
+ }
+
+ void VoidMethod0() {}
+
+ private:
+ int* deletes_;
+};
+
+template <typename T>
+T PassThru(T scoper) {
+ return scoper.Pass();
+}
+
+// Some test functions that we can Bind to.
+template <typename T>
+T PolymorphicIdentity(T t) {
+ return t;
+}
+
+template <typename T>
+void VoidPolymorphic1(T t) {
+}
+
+int Identity(int n) {
+ return n;
+}
+
+int ArrayGet(const int array[], int n) {
+ return array[n];
+}
+
+int Sum(int a, int b, int c, int d, int e, int f) {
+ return a + b + c + d + e + f;
+}
+
+const char* CStringIdentity(const char* s) {
+ return s;
+}
+
+int GetCopies(const CopyCounter& counter) {
+ return counter.copies();
+}
+
+int UnwrapNoRefParent(NoRefParent p) {
+ return p.value;
+}
+
+int UnwrapNoRefParentPtr(NoRefParent* p) {
+ return p->value;
+}
+
+int UnwrapNoRefParentConstRef(const NoRefParent& p) {
+ return p.value;
+}
+
+void RefArgSet(int &n) {
+ n = 2;
+}
+
+void PtrArgSet(int *n) {
+ *n = 2;
+}
+
+int FunctionWithWeakFirstParam(WeakPtr<NoRef> o, int n) {
+ return n;
+}
+
+int FunctionWithScopedRefptrFirstParam(const scoped_refptr<HasRef>& o, int n) {
+ return n;
+}
+
+void TakesACallback(const Closure& callback) {
+ callback.Run();
+}
+
+class BindTest : public ::testing::Test {
+ public:
+ BindTest() {
+ const_has_ref_ptr_ = &has_ref_;
+ const_no_ref_ptr_ = &no_ref_;
+ static_func_mock_ptr = &static_func_mock_;
+ }
+
+ virtual ~BindTest() {
+ }
+
+ static void VoidFunc0(void) {
+ static_func_mock_ptr->VoidMethod0();
+ }
+
+ static int IntFunc0(void) { return static_func_mock_ptr->IntMethod0(); }
+
+ protected:
+ StrictMock<NoRef> no_ref_;
+ StrictMock<HasRef> has_ref_;
+ const HasRef* const_has_ref_ptr_;
+ const NoRef* const_no_ref_ptr_;
+ StrictMock<NoRef> static_func_mock_;
+
+ // Used by the static functions to perform expectations.
+ static StrictMock<NoRef>* static_func_mock_ptr;
+
+ private:
+ DISALLOW_COPY_AND_ASSIGN(BindTest);
+};
+
+StrictMock<NoRef>* BindTest::static_func_mock_ptr;
+
+// Sanity check that we can instantiate a callback for each arity.
+TEST_F(BindTest, ArityTest) {
+ Callback<int(void)> c0 = Bind(&Sum, 32, 16, 8, 4, 2, 1);
+ EXPECT_EQ(63, c0.Run());
+
+ Callback<int(int)> c1 = Bind(&Sum, 32, 16, 8, 4, 2);
+ EXPECT_EQ(75, c1.Run(13));
+
+ Callback<int(int,int)> c2 = Bind(&Sum, 32, 16, 8, 4);
+ EXPECT_EQ(85, c2.Run(13, 12));
+
+ Callback<int(int,int,int)> c3 = Bind(&Sum, 32, 16, 8);
+ EXPECT_EQ(92, c3.Run(13, 12, 11));
+
+ Callback<int(int,int,int,int)> c4 = Bind(&Sum, 32, 16);
+ EXPECT_EQ(94, c4.Run(13, 12, 11, 10));
+
+ Callback<int(int,int,int,int,int)> c5 = Bind(&Sum, 32);
+ EXPECT_EQ(87, c5.Run(13, 12, 11, 10, 9));
+
+ Callback<int(int,int,int,int,int,int)> c6 = Bind(&Sum);
+ EXPECT_EQ(69, c6.Run(13, 12, 11, 10, 9, 14));
+}
+
+// Test the Currying ability of the Callback system.
+TEST_F(BindTest, CurryingTest) {
+ Callback<int(int,int,int,int,int,int)> c6 = Bind(&Sum);
+ EXPECT_EQ(69, c6.Run(13, 12, 11, 10, 9, 14));
+
+ Callback<int(int,int,int,int,int)> c5 = Bind(c6, 32);
+ EXPECT_EQ(87, c5.Run(13, 12, 11, 10, 9));
+
+ Callback<int(int,int,int,int)> c4 = Bind(c5, 16);
+ EXPECT_EQ(94, c4.Run(13, 12, 11, 10));
+
+ Callback<int(int,int,int)> c3 = Bind(c4, 8);
+ EXPECT_EQ(92, c3.Run(13, 12, 11));
+
+ Callback<int(int,int)> c2 = Bind(c3, 4);
+ EXPECT_EQ(85, c2.Run(13, 12));
+
+ Callback<int(int)> c1 = Bind(c2, 2);
+ EXPECT_EQ(75, c1.Run(13));
+
+ Callback<int(void)> c0 = Bind(c1, 1);
+ EXPECT_EQ(63, c0.Run());
+}
+
+// Test that currying the rvalue result of another Bind() works correctly.
+// - rvalue should be usable as argument to Bind().
+// - multiple runs of resulting Callback remain valid.
+TEST_F(BindTest, CurryingRvalueResultOfBind) {
+ int n = 0;
+ Closure cb = base::Bind(&TakesACallback, base::Bind(&PtrArgSet, &n));
+
+ // If we implement Bind() such that the return value has auto_ptr-like
+ // semantics, the second call here will fail because ownership of
+ // the internal BindState<> would have been transfered to a *temporary*
+ // constructon of a Callback object on the first call.
+ cb.Run();
+ EXPECT_EQ(2, n);
+
+ n = 0;
+ cb.Run();
+ EXPECT_EQ(2, n);
+}
+
+// Function type support.
+// - Normal function.
+// - Normal function bound with non-refcounted first argument.
+// - Method bound to non-const object.
+// - Method bound to scoped_refptr.
+// - Const method bound to non-const object.
+// - Const method bound to const object.
+// - Derived classes can be used with pointers to non-virtual base functions.
+// - Derived classes can be used with pointers to virtual base functions (and
+// preserve virtual dispatch).
+TEST_F(BindTest, FunctionTypeSupport) {
+ EXPECT_CALL(static_func_mock_, VoidMethod0());
+ EXPECT_CALL(has_ref_, AddRef()).Times(5);
+ EXPECT_CALL(has_ref_, Release()).Times(5);
+ EXPECT_CALL(has_ref_, VoidMethod0()).Times(2);
+ EXPECT_CALL(has_ref_, VoidConstMethod0()).Times(2);
+
+ Closure normal_cb = Bind(&VoidFunc0);
+ Callback<NoRef*(void)> normal_non_refcounted_cb =
+ Bind(&PolymorphicIdentity<NoRef*>, &no_ref_);
+ normal_cb.Run();
+ EXPECT_EQ(&no_ref_, normal_non_refcounted_cb.Run());
+
+ Closure method_cb = Bind(&HasRef::VoidMethod0, &has_ref_);
+ Closure method_refptr_cb = Bind(&HasRef::VoidMethod0,
+ make_scoped_refptr(&has_ref_));
+ Closure const_method_nonconst_obj_cb = Bind(&HasRef::VoidConstMethod0,
+ &has_ref_);
+ Closure const_method_const_obj_cb = Bind(&HasRef::VoidConstMethod0,
+ const_has_ref_ptr_);
+ method_cb.Run();
+ method_refptr_cb.Run();
+ const_method_nonconst_obj_cb.Run();
+ const_method_const_obj_cb.Run();
+
+ Child child;
+ child.value = 0;
+ Closure virtual_set_cb = Bind(&Parent::VirtualSet, &child);
+ virtual_set_cb.Run();
+ EXPECT_EQ(kChildValue, child.value);
+
+ child.value = 0;
+ Closure non_virtual_set_cb = Bind(&Parent::NonVirtualSet, &child);
+ non_virtual_set_cb.Run();
+ EXPECT_EQ(kParentValue, child.value);
+}
+
+// Return value support.
+// - Function with return value.
+// - Method with return value.
+// - Const method with return value.
+TEST_F(BindTest, ReturnValues) {
+ EXPECT_CALL(static_func_mock_, IntMethod0()).WillOnce(Return(1337));
+ EXPECT_CALL(has_ref_, AddRef()).Times(3);
+ EXPECT_CALL(has_ref_, Release()).Times(3);
+ EXPECT_CALL(has_ref_, IntMethod0()).WillOnce(Return(31337));
+ EXPECT_CALL(has_ref_, IntConstMethod0())
+ .WillOnce(Return(41337))
+ .WillOnce(Return(51337));
+
+ Callback<int(void)> normal_cb = Bind(&IntFunc0);
+ Callback<int(void)> method_cb = Bind(&HasRef::IntMethod0, &has_ref_);
+ Callback<int(void)> const_method_nonconst_obj_cb =
+ Bind(&HasRef::IntConstMethod0, &has_ref_);
+ Callback<int(void)> const_method_const_obj_cb =
+ Bind(&HasRef::IntConstMethod0, const_has_ref_ptr_);
+ EXPECT_EQ(1337, normal_cb.Run());
+ EXPECT_EQ(31337, method_cb.Run());
+ EXPECT_EQ(41337, const_method_nonconst_obj_cb.Run());
+ EXPECT_EQ(51337, const_method_const_obj_cb.Run());
+}
+
+// IgnoreResult adapter test.
+// - Function with return value.
+// - Method with return value.
+// - Const Method with return.
+// - Method with return value bound to WeakPtr<>.
+// - Const Method with return bound to WeakPtr<>.
+TEST_F(BindTest, IgnoreResult) {
+ EXPECT_CALL(static_func_mock_, IntMethod0()).WillOnce(Return(1337));
+ EXPECT_CALL(has_ref_, AddRef()).Times(2);
+ EXPECT_CALL(has_ref_, Release()).Times(2);
+ EXPECT_CALL(has_ref_, IntMethod0()).WillOnce(Return(10));
+ EXPECT_CALL(has_ref_, IntConstMethod0()).WillOnce(Return(11));
+ EXPECT_CALL(no_ref_, IntMethod0()).WillOnce(Return(12));
+ EXPECT_CALL(no_ref_, IntConstMethod0()).WillOnce(Return(13));
+
+ Closure normal_func_cb = Bind(IgnoreResult(&IntFunc0));
+ normal_func_cb.Run();
+
+ Closure non_void_method_cb =
+ Bind(IgnoreResult(&HasRef::IntMethod0), &has_ref_);
+ non_void_method_cb.Run();
+
+ Closure non_void_const_method_cb =
+ Bind(IgnoreResult(&HasRef::IntConstMethod0), &has_ref_);
+ non_void_const_method_cb.Run();
+
+ WeakPtrFactory<NoRef> weak_factory(&no_ref_);
+ WeakPtrFactory<const NoRef> const_weak_factory(const_no_ref_ptr_);
+
+ Closure non_void_weak_method_cb =
+ Bind(IgnoreResult(&NoRef::IntMethod0), weak_factory.GetWeakPtr());
+ non_void_weak_method_cb.Run();
+
+ Closure non_void_weak_const_method_cb =
+ Bind(IgnoreResult(&NoRef::IntConstMethod0), weak_factory.GetWeakPtr());
+ non_void_weak_const_method_cb.Run();
+
+ weak_factory.InvalidateWeakPtrs();
+ non_void_weak_const_method_cb.Run();
+ non_void_weak_method_cb.Run();
+}
+
+// Argument binding tests.
+// - Argument binding to primitive.
+// - Argument binding to primitive pointer.
+// - Argument binding to a literal integer.
+// - Argument binding to a literal string.
+// - Argument binding with template function.
+// - Argument binding to an object.
+// - Argument binding to pointer to incomplete type.
+// - Argument gets type converted.
+// - Pointer argument gets converted.
+// - Const Reference forces conversion.
+TEST_F(BindTest, ArgumentBinding) {
+ int n = 2;
+
+ Callback<int(void)> bind_primitive_cb = Bind(&Identity, n);
+ EXPECT_EQ(n, bind_primitive_cb.Run());
+
+ Callback<int*(void)> bind_primitive_pointer_cb =
+ Bind(&PolymorphicIdentity<int*>, &n);
+ EXPECT_EQ(&n, bind_primitive_pointer_cb.Run());
+
+ Callback<int(void)> bind_int_literal_cb = Bind(&Identity, 3);
+ EXPECT_EQ(3, bind_int_literal_cb.Run());
+
+ Callback<const char*(void)> bind_string_literal_cb =
+ Bind(&CStringIdentity, "hi");
+ EXPECT_STREQ("hi", bind_string_literal_cb.Run());
+
+ Callback<int(void)> bind_template_function_cb =
+ Bind(&PolymorphicIdentity<int>, 4);
+ EXPECT_EQ(4, bind_template_function_cb.Run());
+
+ NoRefParent p;
+ p.value = 5;
+ Callback<int(void)> bind_object_cb = Bind(&UnwrapNoRefParent, p);
+ EXPECT_EQ(5, bind_object_cb.Run());
+
+ IncompleteType* incomplete_ptr = reinterpret_cast<IncompleteType*>(123);
+ Callback<IncompleteType*(void)> bind_incomplete_ptr_cb =
+ Bind(&PolymorphicIdentity<IncompleteType*>, incomplete_ptr);
+ EXPECT_EQ(incomplete_ptr, bind_incomplete_ptr_cb.Run());
+
+ NoRefChild c;
+ c.value = 6;
+ Callback<int(void)> bind_promotes_cb = Bind(&UnwrapNoRefParent, c);
+ EXPECT_EQ(6, bind_promotes_cb.Run());
+
+ c.value = 7;
+ Callback<int(void)> bind_pointer_promotes_cb =
+ Bind(&UnwrapNoRefParentPtr, &c);
+ EXPECT_EQ(7, bind_pointer_promotes_cb.Run());
+
+ c.value = 8;
+ Callback<int(void)> bind_const_reference_promotes_cb =
+ Bind(&UnwrapNoRefParentConstRef, c);
+ EXPECT_EQ(8, bind_const_reference_promotes_cb.Run());
+}
+
+// Unbound argument type support tests.
+// - Unbound value.
+// - Unbound pointer.
+// - Unbound reference.
+// - Unbound const reference.
+// - Unbound unsized array.
+// - Unbound sized array.
+// - Unbound array-of-arrays.
+TEST_F(BindTest, UnboundArgumentTypeSupport) {
+ Callback<void(int)> unbound_value_cb = Bind(&VoidPolymorphic1<int>);
+ Callback<void(int*)> unbound_pointer_cb = Bind(&VoidPolymorphic1<int*>);
+ Callback<void(int&)> unbound_ref_cb = Bind(&VoidPolymorphic1<int&>);
+ Callback<void(const int&)> unbound_const_ref_cb =
+ Bind(&VoidPolymorphic1<const int&>);
+ Callback<void(int[])> unbound_unsized_array_cb =
+ Bind(&VoidPolymorphic1<int[]>);
+ Callback<void(int[2])> unbound_sized_array_cb =
+ Bind(&VoidPolymorphic1<int[2]>);
+ Callback<void(int[][2])> unbound_array_of_arrays_cb =
+ Bind(&VoidPolymorphic1<int[][2]>);
+}
+
+// Function with unbound reference parameter.
+// - Original parameter is modified by callback.
+TEST_F(BindTest, UnboundReferenceSupport) {
+ int n = 0;
+ Callback<void(int&)> unbound_ref_cb = Bind(&RefArgSet);
+ unbound_ref_cb.Run(n);
+ EXPECT_EQ(2, n);
+}
+
+// Functions that take reference parameters.
+// - Forced reference parameter type still stores a copy.
+// - Forced const reference parameter type still stores a copy.
+TEST_F(BindTest, ReferenceArgumentBinding) {
+ int n = 1;
+ int& ref_n = n;
+ const int& const_ref_n = n;
+
+ Callback<int(void)> ref_copies_cb = Bind(&Identity, ref_n);
+ EXPECT_EQ(n, ref_copies_cb.Run());
+ n++;
+ EXPECT_EQ(n - 1, ref_copies_cb.Run());
+
+ Callback<int(void)> const_ref_copies_cb = Bind(&Identity, const_ref_n);
+ EXPECT_EQ(n, const_ref_copies_cb.Run());
+ n++;
+ EXPECT_EQ(n - 1, const_ref_copies_cb.Run());
+}
+
+// Check that we can pass in arrays and have them be stored as a pointer.
+// - Array of values stores a pointer.
+// - Array of const values stores a pointer.
+TEST_F(BindTest, ArrayArgumentBinding) {
+ int array[4] = {1, 1, 1, 1};
+ const int (*const_array_ptr)[4] = &array;
+
+ Callback<int(void)> array_cb = Bind(&ArrayGet, array, 1);
+ EXPECT_EQ(1, array_cb.Run());
+
+ Callback<int(void)> const_array_cb = Bind(&ArrayGet, *const_array_ptr, 1);
+ EXPECT_EQ(1, const_array_cb.Run());
+
+ array[1] = 3;
+ EXPECT_EQ(3, array_cb.Run());
+ EXPECT_EQ(3, const_array_cb.Run());
+}
+
+// Verify SupportsAddRefAndRelease correctly introspects the class type for
+// AddRef() and Release().
+// - Class with AddRef() and Release()
+// - Class without AddRef() and Release()
+// - Derived Class with AddRef() and Release()
+// - Derived Class without AddRef() and Release()
+// - Derived Class with AddRef() and Release() and a private destructor.
+TEST_F(BindTest, SupportsAddRefAndRelease) {
+ EXPECT_TRUE(internal::SupportsAddRefAndRelease<HasRef>::value);
+ EXPECT_FALSE(internal::SupportsAddRefAndRelease<NoRef>::value);
+
+ // StrictMock<T> is a derived class of T. So, we use StrictMock<HasRef> and
+ // StrictMock<NoRef> to test that SupportsAddRefAndRelease works over
+ // inheritance.
+ EXPECT_TRUE(internal::SupportsAddRefAndRelease<StrictMock<HasRef> >::value);
+ EXPECT_FALSE(internal::SupportsAddRefAndRelease<StrictMock<NoRef> >::value);
+
+ // This matters because the implementation creates a dummy class that
+ // inherits from the template type.
+ EXPECT_TRUE(internal::SupportsAddRefAndRelease<HasRefPrivateDtor>::value);
+}
+
+// Unretained() wrapper support.
+// - Method bound to Unretained() non-const object.
+// - Const method bound to Unretained() non-const object.
+// - Const method bound to Unretained() const object.
+TEST_F(BindTest, Unretained) {
+ EXPECT_CALL(no_ref_, VoidMethod0());
+ EXPECT_CALL(no_ref_, VoidConstMethod0()).Times(2);
+
+ Callback<void(void)> method_cb =
+ Bind(&NoRef::VoidMethod0, Unretained(&no_ref_));
+ method_cb.Run();
+
+ Callback<void(void)> const_method_cb =
+ Bind(&NoRef::VoidConstMethod0, Unretained(&no_ref_));
+ const_method_cb.Run();
+
+ Callback<void(void)> const_method_const_ptr_cb =
+ Bind(&NoRef::VoidConstMethod0, Unretained(const_no_ref_ptr_));
+ const_method_const_ptr_cb.Run();
+}
+
+// WeakPtr() support.
+// - Method bound to WeakPtr<> to non-const object.
+// - Const method bound to WeakPtr<> to non-const object.
+// - Const method bound to WeakPtr<> to const object.
+// - Normal Function with WeakPtr<> as P1 can have return type and is
+// not canceled.
+TEST_F(BindTest, WeakPtr) {
+ EXPECT_CALL(no_ref_, VoidMethod0());
+ EXPECT_CALL(no_ref_, VoidConstMethod0()).Times(2);
+
+ WeakPtrFactory<NoRef> weak_factory(&no_ref_);
+ WeakPtrFactory<const NoRef> const_weak_factory(const_no_ref_ptr_);
+
+ Closure method_cb =
+ Bind(&NoRef::VoidMethod0, weak_factory.GetWeakPtr());
+ method_cb.Run();
+
+ Closure const_method_cb =
+ Bind(&NoRef::VoidConstMethod0, const_weak_factory.GetWeakPtr());
+ const_method_cb.Run();
+
+ Closure const_method_const_ptr_cb =
+ Bind(&NoRef::VoidConstMethod0, const_weak_factory.GetWeakPtr());
+ const_method_const_ptr_cb.Run();
+
+ Callback<int(int)> normal_func_cb =
+ Bind(&FunctionWithWeakFirstParam, weak_factory.GetWeakPtr());
+ EXPECT_EQ(1, normal_func_cb.Run(1));
+
+ weak_factory.InvalidateWeakPtrs();
+ const_weak_factory.InvalidateWeakPtrs();
+
+ method_cb.Run();
+ const_method_cb.Run();
+ const_method_const_ptr_cb.Run();
+
+ // Still runs even after the pointers are invalidated.
+ EXPECT_EQ(2, normal_func_cb.Run(2));
+}
+
+// ConstRef() wrapper support.
+// - Binding w/o ConstRef takes a copy.
+// - Binding a ConstRef takes a reference.
+// - Binding ConstRef to a function ConstRef does not copy on invoke.
+TEST_F(BindTest, ConstRef) {
+ int n = 1;
+
+ Callback<int(void)> copy_cb = Bind(&Identity, n);
+ Callback<int(void)> const_ref_cb = Bind(&Identity, ConstRef(n));
+ EXPECT_EQ(n, copy_cb.Run());
+ EXPECT_EQ(n, const_ref_cb.Run());
+ n++;
+ EXPECT_EQ(n - 1, copy_cb.Run());
+ EXPECT_EQ(n, const_ref_cb.Run());
+
+ int copies = 0;
+ int assigns = 0;
+ CopyCounter counter(&copies, &assigns);
+ Callback<int(void)> all_const_ref_cb =
+ Bind(&GetCopies, ConstRef(counter));
+ EXPECT_EQ(0, all_const_ref_cb.Run());
+ EXPECT_EQ(0, copies);
+ EXPECT_EQ(0, assigns);
+}
+
+TEST_F(BindTest, ScopedRefptr) {
+ // BUG: The scoped_refptr should cause the only AddRef()/Release() pair. But
+ // due to a bug in base::Bind(), there's an extra call when invoking the
+ // callback.
+ // https://code.google.com/p/chromium/issues/detail?id=251937
+ EXPECT_CALL(has_ref_, AddRef()).Times(2);
+ EXPECT_CALL(has_ref_, Release()).Times(2);
+
+ const scoped_refptr<StrictMock<HasRef> > refptr(&has_ref_);
+
+ Callback<int(void)> scoped_refptr_const_ref_cb =
+ Bind(&FunctionWithScopedRefptrFirstParam, base::ConstRef(refptr), 1);
+ EXPECT_EQ(1, scoped_refptr_const_ref_cb.Run());
+}
+
+// Test Owned() support.
+TEST_F(BindTest, Owned) {
+ int deletes = 0;
+ DeleteCounter* counter = new DeleteCounter(&deletes);
+
+ // If we don't capture, delete happens on Callback destruction/reset.
+ // return the same value.
+ Callback<DeleteCounter*(void)> no_capture_cb =
+ Bind(&PolymorphicIdentity<DeleteCounter*>, Owned(counter));
+ ASSERT_EQ(counter, no_capture_cb.Run());
+ ASSERT_EQ(counter, no_capture_cb.Run());
+ EXPECT_EQ(0, deletes);
+ no_capture_cb.Reset(); // This should trigger a delete.
+ EXPECT_EQ(1, deletes);
+
+ deletes = 0;
+ counter = new DeleteCounter(&deletes);
+ base::Closure own_object_cb =
+ Bind(&DeleteCounter::VoidMethod0, Owned(counter));
+ own_object_cb.Run();
+ EXPECT_EQ(0, deletes);
+ own_object_cb.Reset();
+ EXPECT_EQ(1, deletes);
+}
+
+// Passed() wrapper support.
+// - Passed() can be constructed from a pointer to scoper.
+// - Passed() can be constructed from a scoper rvalue.
+// - Using Passed() gives Callback Ownership.
+// - Ownership is transferred from Callback to callee on the first Run().
+// - Callback supports unbound arguments.
+TEST_F(BindTest, ScopedPtr) {
+ int deletes = 0;
+
+ // Tests the Passed() function's support for pointers.
+ scoped_ptr<DeleteCounter> ptr(new DeleteCounter(&deletes));
+ Callback<scoped_ptr<DeleteCounter>(void)> unused_callback =
+ Bind(&PassThru<scoped_ptr<DeleteCounter> >, Passed(&ptr));
+ EXPECT_FALSE(ptr.get());
+ EXPECT_EQ(0, deletes);
+
+ // If we never invoke the Callback, it retains ownership and deletes.
+ unused_callback.Reset();
+ EXPECT_EQ(1, deletes);
+
+ // Tests the Passed() function's support for rvalues.
+ deletes = 0;
+ DeleteCounter* counter = new DeleteCounter(&deletes);
+ Callback<scoped_ptr<DeleteCounter>(void)> callback =
+ Bind(&PassThru<scoped_ptr<DeleteCounter> >,
+ Passed(scoped_ptr<DeleteCounter>(counter)));
+ EXPECT_FALSE(ptr.get());
+ EXPECT_EQ(0, deletes);
+
+ // Check that ownership can be transferred back out.
+ scoped_ptr<DeleteCounter> result = callback.Run();
+ ASSERT_EQ(counter, result.get());
+ EXPECT_EQ(0, deletes);
+
+ // Resetting does not delete since ownership was transferred.
+ callback.Reset();
+ EXPECT_EQ(0, deletes);
+
+ // Ensure that we actually did get ownership.
+ result.reset();
+ EXPECT_EQ(1, deletes);
+
+ // Test unbound argument forwarding.
+ Callback<scoped_ptr<DeleteCounter>(scoped_ptr<DeleteCounter>)> cb_unbound =
+ Bind(&PassThru<scoped_ptr<DeleteCounter> >);
+ ptr.reset(new DeleteCounter(&deletes));
+ cb_unbound.Run(ptr.Pass());
+}
+
+// Argument Copy-constructor usage for non-reference parameters.
+// - Bound arguments are only copied once.
+// - Forwarded arguments are only copied once.
+// - Forwarded arguments with coercions are only copied twice (once for the
+// coercion, and one for the final dispatch).
+TEST_F(BindTest, ArgumentCopies) {
+ int copies = 0;
+ int assigns = 0;
+
+ CopyCounter counter(&copies, &assigns);
+
+ Callback<void(void)> copy_cb =
+ Bind(&VoidPolymorphic1<CopyCounter>, counter);
+ EXPECT_GE(1, copies);
+ EXPECT_EQ(0, assigns);
+
+ copies = 0;
+ assigns = 0;
+ Callback<void(CopyCounter)> forward_cb =
+ Bind(&VoidPolymorphic1<CopyCounter>);
+ forward_cb.Run(counter);
+ EXPECT_GE(1, copies);
+ EXPECT_EQ(0, assigns);
+
+ copies = 0;
+ assigns = 0;
+ DerivedCopyCounter derived(&copies, &assigns);
+ Callback<void(CopyCounter)> coerce_cb =
+ Bind(&VoidPolymorphic1<CopyCounter>);
+ coerce_cb.Run(CopyCounter(derived));
+ EXPECT_GE(2, copies);
+ EXPECT_EQ(0, assigns);
+}
+
+// Callback construction and assignment tests.
+// - Construction from an InvokerStorageHolder should not cause ref/deref.
+// - Assignment from other callback should only cause one ref
+//
+// TODO(ajwong): Is there actually a way to test this?
+
+#if defined(OS_WIN)
+int __fastcall FastCallFunc(int n) {
+ return n;
+}
+
+int __stdcall StdCallFunc(int n) {
+ return n;
+}
+
+// Windows specific calling convention support.
+// - Can bind a __fastcall function.
+// - Can bind a __stdcall function.
+TEST_F(BindTest, WindowsCallingConventions) {
+ Callback<int(void)> fastcall_cb = Bind(&FastCallFunc, 1);
+ EXPECT_EQ(1, fastcall_cb.Run());
+
+ Callback<int(void)> stdcall_cb = Bind(&StdCallFunc, 2);
+ EXPECT_EQ(2, stdcall_cb.Run());
+}
+#endif
+
+#if (!defined(NDEBUG) || defined(DCHECK_ALWAYS_ON)) && GTEST_HAS_DEATH_TEST
+
+// Test null callbacks cause a DCHECK.
+TEST(BindDeathTest, NullCallback) {
+ base::Callback<void(int)> null_cb;
+ ASSERT_TRUE(null_cb.is_null());
+ EXPECT_DEATH(base::Bind(null_cb, 42), "");
+}
+
+#endif // (!defined(NDEBUG) || defined(DCHECK_ALWAYS_ON)) &&
+ // GTEST_HAS_DEATH_TEST
+
+} // namespace
+} // namespace base
