ppapi/tests/test_trace_event.cc

   1 // Copyright 2013 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 "ppapi/tests/test_trace_event.h"
   6
   7 #include "ppapi/cpp/module.h"
   8 #include "ppapi/tests/testing_instance.h"
   9
  10 REGISTER_TEST_CASE(TraceEvent);
  11
  12 TestTraceEvent::TestTraceEvent(TestingInstance* instance)
  13     : TestCase(instance),
  14       interface_(NULL) {
  15 }
  16
  17 bool TestTraceEvent::Init() {
  18   interface_ = static_cast<const PPB_Trace_Event_Dev*>(
  19       pp::Module::Get()->GetBrowserInterface(PPB_TRACE_EVENT_DEV_INTERFACE));
  20   return !!interface_;
  21 }
  22
  23 void TestTraceEvent::RunTests(const std::string& filter) {
  24   RUN_TEST(Smoke, filter);
  25   RUN_TEST(SmokeWithTimestamps, filter);
  26   RUN_TEST(Clock, filter);
  27 }
  28
  29 std::string TestTraceEvent::TestSmoke() {
  30   // This test does not verify the log message actually reaches dev tracing, but
  31   // it does test that the interface exists and that it can be called without
  32   // crashing.
  33   const void* cat_enabled = interface_->GetCategoryEnabled("bar");
  34   interface_->AddTraceEvent('B', cat_enabled, "foo", 0, 0, NULL, NULL, NULL, 0);
  35   interface_->AddTraceEvent('E', cat_enabled, "foo", 0, 0, NULL, NULL, NULL, 0);
  36   PASS();
  37 }
  38
  39 std::string TestTraceEvent::TestSmokeWithTimestamps() {
  40   // This test does not verify the log message actually reaches dev tracing, but
  41   // it does test that the interface exists and that it can be called without
  42   // crashing.
  43   const void* cat_enabled = interface_->GetCategoryEnabled("bar");
  44   interface_->AddTraceEventWithThreadIdAndTimestamp(
  45     'B', cat_enabled, "foo", 0, 0, 42, 0, NULL, NULL, NULL, 0);
  46   interface_->AddTraceEventWithThreadIdAndTimestamp(
  47     'B', cat_enabled, "foo", 0, 1, 43, 0, NULL, NULL, NULL, 0);
  48   interface_->AddTraceEventWithThreadIdAndTimestamp(
  49     'E', cat_enabled, "foo", 0, 0, 44, 0, NULL, NULL, NULL, 0);
  50   interface_->AddTraceEventWithThreadIdAndTimestamp(
  51     'E', cat_enabled, "foo", 0, 1, 45, 0, NULL, NULL, NULL, 0);
  52   PASS();
  53 }
  54
  55 std::string TestTraceEvent::TestClock() {
  56   int64_t last = interface_->Now();
  57
  58   for(int i=0; i<5; ++i){
  59     int64_t next = interface_->Now();
  60     ASSERT_LE(last, next);
  61     last = next;
  62   }
  63
  64   PASS();
  65 }