Generalize the net module's LoadLog facility from a passive container, to an event stream (NetLog).

net/base/load_log_unittest.h

-// Copyright (c) 2009 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.
-
-#ifndef NET_BASE_LOAD_LOG_UNITTEST_H_
-#define NET_BASE_LOAD_LOG_UNITTEST_H_
-
-#include <cstddef>
-#include "net/base/load_log.h"
-#include "testing/gtest/include/gtest/gtest.h"
-
-namespace net {
-
-// Create a timestamp with internal value of |t| milliseconds from the epoch.
-inline base::TimeTicks MakeTime(int t) {
-  base::TimeTicks ticks;  // initialized to 0.
-  ticks += base::TimeDelta::FromMilliseconds(t);
-  return ticks;
-}
-
-inline ::testing::AssertionResult LogContainsEventHelper(
-    const LoadLog& log,
-    int i,  // Negative indices are reverse indices.
-    const base::TimeTicks& expected_time,
-    bool check_time,
-    LoadLog::EventType expected_event,
-    LoadLog::EventPhase expected_phase) {
-  // Negative indices are reverse indices.
-  size_t j = (i < 0) ? log.entries().size() + i : i;
-  if (j >= log.entries().size())
-    return ::testing::AssertionFailure() << j << " is out of bounds.";
-  const LoadLog::Entry& entry = log.entries()[j];
-  if (entry.type != LoadLog::Entry::TYPE_EVENT)
-    return ::testing::AssertionFailure() << "Not a TYPE_EVENT entry";
-  if (expected_event != entry.event.type) {
-    return ::testing::AssertionFailure()
-        << "Actual event: " << LoadLog::EventTypeToString(entry.event.type)
-        << ". Expected event: " << LoadLog::EventTypeToString(expected_event)
-        << ".";
-  }
-  if (expected_phase != entry.event.phase) {
-    return ::testing::AssertionFailure()
-        << "Actual phase: " << entry.event.phase
-        << ". Expected phase: " << expected_phase << ".";
-  }
-  if (check_time) {
-    if (expected_time != entry.time) {
-      return ::testing::AssertionFailure()
-          << "Actual time: " << entry.time.ToInternalValue()
-          << ". Expected time: " << expected_time.ToInternalValue()
-          << ".";
-    }
-  }
-  return ::testing::AssertionSuccess();
-}
-
-inline ::testing::AssertionResult LogContainsEventAtTime(
-    const LoadLog& log,
-    int i,  // Negative indices are reverse indices.
-    const base::TimeTicks& expected_time,
-    LoadLog::EventType expected_event,
-    LoadLog::EventPhase expected_phase) {
-  return LogContainsEventHelper(log, i, expected_time, true,
-                                expected_event, expected_phase);
-}
-
-// Version without timestamp.
-inline ::testing::AssertionResult LogContainsEvent(
-    const LoadLog& log,
-    int i,  // Negative indices are reverse indices.
-    LoadLog::EventType expected_event,
-    LoadLog::EventPhase expected_phase) {
-  return LogContainsEventHelper(log, i, base::TimeTicks(), false,
-                                expected_event, expected_phase);
-}
-
-// Version for PHASE_BEGIN (and no timestamp).
-inline ::testing::AssertionResult LogContainsBeginEvent(
-    const LoadLog& log,
-    int i,  // Negative indices are reverse indices.
-    LoadLog::EventType expected_event) {
-  return LogContainsEvent(log, i, expected_event, LoadLog::PHASE_BEGIN);
-}
-
-// Version for PHASE_END (and no timestamp).
-inline ::testing::AssertionResult LogContainsEndEvent(
-    const LoadLog& log,
-    int i,  // Negative indices are reverse indices.
-    LoadLog::EventType expected_event) {
-  return LogContainsEvent(log, i, expected_event, LoadLog::PHASE_END);
-}
-
-inline ::testing::AssertionResult LogContainsEntryWithType(
-    const LoadLog& log,
-    int i, // Negative indices are reverse indices.
-    LoadLog::Entry::Type type) {
-  // Negative indices are reverse indices.
-  size_t j = (i < 0) ? log.entries().size() + i : i;
-  if (j >= log.entries().size())
-    return ::testing::AssertionFailure() << j << " is out of bounds.";
-  const LoadLog::Entry& entry = log.entries()[j];
-  if (entry.type != type)
-    return ::testing::AssertionFailure() << "Type does not match.";
-  return ::testing::AssertionSuccess();
-}
-
-
-// Expect that the log contains an event, but don't care about where
-// as long as the index where it is found is greater than min_index.
-// Returns the position where the event was found.
-inline size_t ExpectLogContainsSomewhere(const LoadLog* log,
-                                         size_t min_index,
-                                         LoadLog::EventType expected_event,
-                                         LoadLog::EventPhase expected_phase) {
-  size_t i = 0;
-  for (; i < log->entries().size(); ++i) {
-    const LoadLog::Entry& entry = log->entries()[i];
-    if (entry.type == LoadLog::Entry::TYPE_EVENT &&
-        entry.event.type == expected_event &&
-        entry.event.phase == expected_phase)
-      break;
-  }
-  EXPECT_LT(i, log->entries().size());
-  EXPECT_GE(i, min_index);
-  return i;
-}
-
-}  // namespace net
-
-#endif  // NET_BASE_LOAD_LOG_UNITTEST_H_