File: shm_count_unittest.cc

package info (click to toggle)
chromium 140.0.7339.127-1
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid
  • size: 6,192,880 kB
  • sloc: cpp: 35,093,808; ansic: 7,161,670; javascript: 4,199,694; python: 1,441,797; asm: 949,904; xml: 747,503; pascal: 187,748; perl: 88,691; sh: 88,248; objc: 79,953; sql: 52,714; cs: 44,599; fortran: 24,137; makefile: 22,114; tcl: 15,277; php: 13,980; yacc: 9,000; ruby: 7,485; awk: 3,720; lisp: 3,096; lex: 1,327; ada: 727; jsp: 228; sed: 36
file content (41 lines) | stat: -rw-r--r-- 1,251 bytes parent folder | download | duplicates (10) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
 
// Copyright 2017 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "gpu/command_buffer/common/shm_count.h"

#include "base/memory/unsafe_shared_memory_region.h"
#include "testing/gtest/include/gtest/gtest.h"

namespace gpu {

TEST(ShmCountTest, BasicUsage) {
  // Create the host count.
  GpuProcessHostShmCount host_count;
  EXPECT_EQ(host_count.GetCount(), 0);

  // Create the service count from host memory.
  GpuProcessShmCount service_count(host_count.CloneRegion());

  // Ensure we can increment and decrement.
  {
    GpuProcessShmCount::ScopedIncrement scoped_increment(&service_count);
    EXPECT_EQ(host_count.GetCount(), 1);
    {
      GpuProcessShmCount::ScopedIncrement scoped_increment2(&service_count);
      EXPECT_EQ(host_count.GetCount(), 2);
    }
    EXPECT_EQ(host_count.GetCount(), 1);
  }
  EXPECT_EQ(host_count.GetCount(), 0);
}

TEST(ShmCountTest, NotInitialized) {
  // Get the service count without providing host memory.
  GpuProcessShmCount service_count{base::UnsafeSharedMemoryRegion()};

  // Increment/decrement should not crash.
  { GpuProcessShmCount::ScopedIncrement scoped_increment(&service_count); }
}

}  // namespace gpu