tor-browser

The Tor Browser
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TestMostNested.cpp (1998B)

      1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
      2 * vim: sw=2 ts=4 et :
      3 */
      4 /* This Source Code Form is subject to the terms of the Mozilla Public
      5 * License, v. 2.0. If a copy of the MPL was not distributed with this
      6 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
      7 
      8 /*
      9 * Test nested sync message priorities.
     10 */
     11 
     12 #include "gtest/gtest.h"
     13 
     14 #include "mozilla/_ipdltest/IPDLUnitTest.h"
     15 #include "mozilla/_ipdltest/PTestMostNestedChild.h"
     16 #include "mozilla/_ipdltest/PTestMostNestedParent.h"
     17 
     18 #if defined(XP_UNIX)
     19 #  include <unistd.h>
     20 #else
     21 #  include <windows.h>
     22 #endif
     23 
     24 using namespace mozilla::ipc;
     25 
     26 namespace mozilla::_ipdltest {
     27 
     28 class TestMostNestedChild : public PTestMostNestedChild {
     29  NS_INLINE_DECL_REFCOUNTING(TestMostNestedChild, override)
     30 private:
     31  IPCResult RecvStart() final override {
     32    EXPECT_TRUE(SendMsg1());
     33    EXPECT_TRUE(SendMsg2());
     34 
     35    Close();
     36    return IPC_OK();
     37  }
     38 
     39  IPCResult RecvStartInner() final override {
     40    EXPECT_TRUE(SendMsg3());
     41    EXPECT_TRUE(SendMsg4());
     42 
     43    return IPC_OK();
     44  }
     45 
     46  ~TestMostNestedChild() = default;
     47 };
     48 
     49 class TestMostNestedParent : public PTestMostNestedParent {
     50  NS_INLINE_DECL_REFCOUNTING(TestMostNestedParent, override)
     51 private:
     52  IPCResult RecvMsg1() final override {
     53    EXPECT_EQ(msg_num, 0);
     54    msg_num = 1;
     55    return IPC_OK();
     56  }
     57 
     58  IPCResult RecvMsg2() final override {
     59    EXPECT_EQ(msg_num, 1);
     60    msg_num = 2;
     61 
     62    EXPECT_TRUE(SendStartInner());
     63 
     64    return IPC_OK();
     65  }
     66 
     67  IPCResult RecvMsg3() final override {
     68    EXPECT_EQ(msg_num, 2);
     69    msg_num = 3;
     70    return IPC_OK();
     71  }
     72 
     73  IPCResult RecvMsg4() final override {
     74    EXPECT_EQ(msg_num, 3);
     75    msg_num = 4;
     76    return IPC_OK();
     77  }
     78 
     79  ~TestMostNestedParent() = default;
     80 
     81  int msg_num = 0;
     82 };
     83 
     84 // Can only run cross-process because nested sync messages have to come from the
     85 // main thread.
     86 IPDL_TEST_ON(CROSSPROCESS, TestMostNested) { EXPECT_TRUE(mActor->SendStart()); }
     87 
     88 }  // namespace mozilla::_ipdltest