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1 // Copyright 2016 The Chromium Authors. All rights reserved. | |
2 // Use of this source code is governed by a BSD-style license that can be | |
3 // found in the LICENSE file. | |
4 | |
5 #include "mojo/public/cpp/bindings/synchronous_interface_ptr.h" | |
6 | |
7 #include <thread> | |
8 #include <utility> | |
9 | |
10 #include "gtest/gtest.h" | |
11 #include "mojo/public/cpp/bindings/binding.h" | |
12 #include "mojo/public/cpp/bindings/interface_request.h" | |
13 #include "mojo/public/cpp/bindings/strong_binding.h" | |
14 #include "mojo/public/cpp/utility/run_loop.h" | |
15 #include "mojo/public/interfaces/bindings/tests/math_calculator.mojom-sync.h" | |
16 #include "mojo/public/interfaces/bindings/tests/math_calculator.mojom.h" | |
17 #include "mojo/public/interfaces/bindings/tests/scoping.mojom-sync.h" | |
18 #include "mojo/public/interfaces/bindings/tests/scoping.mojom.h" | |
19 | |
20 namespace mojo { | |
21 namespace test { | |
22 namespace { | |
23 | |
24 using CalcCallback = mojo::Callback<void(double)>; | |
25 | |
26 // This runs in a separate thread. | |
27 class MathCalculatorImpl : public math::Calculator { | |
28 public: | |
29 explicit MathCalculatorImpl(InterfaceRequest<math::Calculator> request) | |
30 : total_(0.0), binding_(this, request.Pass()) {} | |
31 ~MathCalculatorImpl() override {} | |
32 | |
33 void Clear(const CalcCallback& callback) override { | |
34 total_ = 0.0; | |
35 callback.Run(total_); | |
36 } | |
37 | |
38 void Add(double value, const CalcCallback& callback) override { | |
39 total_ += value; | |
40 callback.Run(total_); | |
41 } | |
42 | |
43 void Multiply(double value, const CalcCallback& callback) override { | |
44 total_ *= value; | |
45 callback.Run(total_); | |
46 } | |
47 | |
48 private: | |
49 double total_; | |
50 Binding<math::Calculator> binding_; | |
51 }; | |
52 | |
53 class SynchronousInterfacePtrTest : public testing::Test { | |
54 public: | |
55 ~SynchronousInterfacePtrTest() override { loop_.RunUntilIdle(); } | |
56 | |
57 void PumpMessages() { loop_.RunUntilIdle(); } | |
58 | |
59 // This is meant to be passed in to an std::thread -- the thread will have its | |
60 // own RunLoop! | |
61 static void StartMathCalculator(InterfaceRequest<math::Calculator> server) { | |
62 // Runloop is thread-local, and this is what the MathCalculatorImpl will end | |
63 // up using. | |
64 RunLoop loop; | |
65 MathCalculatorImpl calc_impl(std::move(server)); | |
66 loop.Run(); | |
67 } | |
68 | |
69 private: | |
70 RunLoop loop_; | |
71 }; | |
72 | |
73 TEST_F(SynchronousInterfacePtrTest, IsBound) { | |
74 SynchronousInterfacePtr<math::Calculator> calc; | |
75 EXPECT_FALSE(calc.is_bound()); | |
76 EXPECT_FALSE(calc); | |
77 | |
78 MathCalculatorImpl calc_impl(GetSynchronousProxy(&calc)); | |
79 EXPECT_TRUE(calc.is_bound()); | |
80 EXPECT_TRUE(calc); | |
81 } | |
82 | |
83 // Do an end to end | |
84 TEST_F(SynchronousInterfacePtrTest, EndToEnd) { | |
85 SynchronousInterfacePtr<math::Calculator> calc; | |
86 std::thread server(StartMathCalculator, GetSynchronousProxy(&calc)); | |
87 | |
88 double out; | |
89 calc->Add(2.0, &out); | |
90 calc->Multiply(5.0, &out); | |
91 EXPECT_EQ(10.0, out); | |
92 | |
93 calc.PassInterfaceHandle(); | |
94 server.join(); | |
95 } | |
96 | |
97 // Move them around. | |
98 TEST_F(SynchronousInterfacePtrTest, Movable) { | |
99 SynchronousInterfacePtr<math::Calculator> a; | |
100 SynchronousInterfacePtr<math::Calculator> b; | |
101 MathCalculatorImpl calc_impl(GetSynchronousProxy(&b)); | |
102 | |
103 EXPECT_TRUE(!a); | |
104 EXPECT_FALSE(!b); | |
105 | |
106 a = std::move(b); | |
107 | |
108 EXPECT_FALSE(!a); | |
109 EXPECT_TRUE(!b); | |
110 } | |
111 | |
112 // Test ::reset() and the explicit bool operator. | |
113 TEST_F(SynchronousInterfacePtrTest, Resettable) { | |
114 MessagePipe pipe; | |
115 // Save this so we can test it later. | |
116 Handle handle = pipe.handle0.get(); | |
117 | |
118 SynchronousInterfacePtr<math::Calculator> a; | |
119 EXPECT_TRUE(!a); | |
120 a = SynchronousInterfacePtr<math::Calculator>::Create( | |
121 InterfaceHandle<math::Calculator>(std::move(pipe.handle0), 0u)); | |
122 EXPECT_FALSE(!a); | |
123 | |
124 a.reset(); | |
125 EXPECT_TRUE(!a); | |
126 | |
127 // Test that handle was closed. | |
128 EXPECT_EQ(MOJO_RESULT_INVALID_ARGUMENT, CloseRaw(handle)); | |
129 } | |
130 | |
131 TEST_F(SynchronousInterfacePtrTest, SetNull) { | |
132 MessagePipe pipe; | |
133 auto a = SynchronousInterfacePtr<math::Calculator>::Create( | |
134 InterfaceHandle<math::Calculator>(std::move(pipe.handle0), 0u)); | |
135 | |
136 EXPECT_TRUE(a); | |
137 a = nullptr; | |
138 EXPECT_FALSE(a); | |
139 } | |
140 | |
141 // SynchronousInterfacePtr<> will return false on method invocations if its | |
142 // underlying end of the pipe is dead. | |
143 TEST_F(SynchronousInterfacePtrTest, EncounteredError) { | |
144 SynchronousInterfacePtr<math::Calculator> calc; | |
145 { | |
146 MathCalculatorImpl calc_impl(GetSynchronousProxy(&calc)); | |
147 EXPECT_TRUE(calc.is_bound()); | |
148 } | |
149 | |
150 EXPECT_TRUE(calc.is_bound()); | |
151 | |
152 double out = 0.0; | |
153 EXPECT_FALSE(calc->Add(2.0, &out)); | |
154 EXPECT_EQ(0.0, out); | |
155 } | |
156 | |
157 class CImpl : public C { | |
158 public: | |
159 CImpl(bool* d_called, InterfaceRequest<C> request) | |
160 : d_called_(d_called), binding_(this, request.Pass()) {} | |
161 ~CImpl() override {} | |
162 | |
163 private: | |
164 void D() override { *d_called_ = true; } | |
165 | |
166 bool* d_called_; | |
167 StrongBinding<C> binding_; | |
168 }; | |
169 | |
170 class BImpl : public B { | |
171 public: | |
172 BImpl(bool* d_called, InterfaceRequest<B> request) | |
173 : d_called_(d_called), binding_(this, request.Pass()) {} | |
174 ~BImpl() override {} | |
175 | |
176 private: | |
177 void GetC(InterfaceRequest<C> c) override { new CImpl(d_called_, c.Pass()); } | |
178 | |
179 bool* d_called_; | |
180 StrongBinding<B> binding_; | |
181 }; | |
182 | |
183 class AImpl : public A { | |
184 public: | |
185 explicit AImpl(InterfaceRequest<A> request) | |
186 : d_called_(false), binding_(this, request.Pass()) {} | |
187 ~AImpl() override {} | |
188 | |
189 bool d_called() const { return d_called_; } | |
190 | |
191 private: | |
192 void GetB(InterfaceRequest<B> b) override { new BImpl(&d_called_, b.Pass()); } | |
193 | |
194 bool d_called_; | |
195 Binding<A> binding_; | |
196 }; | |
197 | |
198 // Test that, for synchronous method calls that don't have return args, the | |
199 // bindings return right away, leaving the messages in the message pipe while | |
200 // closing their end. | |
201 TEST_F(SynchronousInterfacePtrTest, Scoping) { | |
202 SynchronousInterfacePtr<A> a; | |
203 AImpl a_impl(GetSynchronousProxy(&a)); | |
204 | |
205 EXPECT_FALSE(a_impl.d_called()); | |
206 | |
207 { | |
208 SynchronousInterfacePtr<B> b; | |
209 a->GetB(GetSynchronousProxy(&b)); | |
210 SynchronousInterfacePtr<C> c; | |
211 b->GetC(GetSynchronousProxy(&c)); | |
212 c->D(); | |
213 } | |
214 | |
215 // While B & C have fallen out of scope, the service-side endpoints of the | |
216 // pipes will remain until they are flushed. | |
217 EXPECT_FALSE(a_impl.d_called()); | |
218 PumpMessages(); | |
219 EXPECT_TRUE(a_impl.d_called()); | |
220 } | |
221 | |
222 } // namespace | |
223 } // namespace test | |
224 } // namespace mojo | |
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