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+/*
+ * Copyright 2004 The WebRTC Project Authors. All rights reserved.
+ *
+ * Use of this source code is governed by a BSD-style license
+ * that can be found in the LICENSE file in the root of the source
+ * tree. An additional intellectual property rights grant can be found
+ * in the file PATENTS. All contributing project authors may
+ * be found in the AUTHORS file in the root of the source tree.
+ */
+
+#ifndef RTC_BASE_GUNIT_H_
+#define RTC_BASE_GUNIT_H_
+
+#include "absl/strings/string_view.h"
+#include "rtc_base/fake_clock.h"
+#include "rtc_base/logging.h"
+#include "rtc_base/thread.h"
+#include "test/gtest.h"
+
+// Wait until "ex" is true, or "timeout" expires.
+#define WAIT(ex, timeout) \
+ for (int64_t start = rtc::SystemTimeMillis(); \
+ !(ex) && rtc::SystemTimeMillis() < start + (timeout);) { \
+ rtc::Thread::Current()->ProcessMessages(0); \
+ rtc::Thread::Current()->SleepMs(1); \
+ }
+
+// This returns the result of the test in res, so that we don't re-evaluate
+// the expression in the XXXX_WAIT macros below, since that causes problems
+// when the expression is only true the first time you check it.
+#define WAIT_(ex, timeout, res) \
+ do { \
+ int64_t start = rtc::SystemTimeMillis(); \
+ res = (ex) && true; \
+ while (!res && rtc::SystemTimeMillis() < start + (timeout)) { \
+ rtc::Thread::Current()->ProcessMessages(0); \
+ rtc::Thread::Current()->SleepMs(1); \
+ res = (ex) && true; \
+ } \
+ } while (0)
+
+// The typical EXPECT_XXXX and ASSERT_XXXXs, but done until true or a timeout.
+// One can add failure message by appending "<< msg".
+#define EXPECT_TRUE_WAIT(ex, timeout) \
+ GTEST_AMBIGUOUS_ELSE_BLOCKER_ \
+ if (bool res = true) { \
+ WAIT_(ex, timeout, res); \
+ if (!res) \
+ goto GTEST_CONCAT_TOKEN_(gunit_label_, __LINE__); \
+ } else \
+ GTEST_CONCAT_TOKEN_(gunit_label_, __LINE__) : EXPECT_TRUE(ex)
+
+#define EXPECT_EQ_WAIT(v1, v2, timeout) \
+ GTEST_AMBIGUOUS_ELSE_BLOCKER_ \
+ if (bool res = true) { \
+ WAIT_(v1 == v2, timeout, res); \
+ if (!res) \
+ goto GTEST_CONCAT_TOKEN_(gunit_label_, __LINE__); \
+ } else \
+ GTEST_CONCAT_TOKEN_(gunit_label_, __LINE__) : EXPECT_EQ(v1, v2)
+
+#define ASSERT_TRUE_WAIT(ex, timeout) \
+ GTEST_AMBIGUOUS_ELSE_BLOCKER_ \
+ if (bool res = true) { \
+ WAIT_(ex, timeout, res); \
+ if (!res) \
+ goto GTEST_CONCAT_TOKEN_(gunit_label_, __LINE__); \
+ } else \
+ GTEST_CONCAT_TOKEN_(gunit_label_, __LINE__) : ASSERT_TRUE(ex)
+
+#define ASSERT_EQ_WAIT(v1, v2, timeout) \
+ GTEST_AMBIGUOUS_ELSE_BLOCKER_ \
+ if (bool res = true) { \
+ WAIT_(v1 == v2, timeout, res); \
+ if (!res) \
+ goto GTEST_CONCAT_TOKEN_(gunit_label_, __LINE__); \
+ } else \
+ GTEST_CONCAT_TOKEN_(gunit_label_, __LINE__) : ASSERT_EQ(v1, v2)
+
+// Version with a "soft" timeout and a margin. This logs if the timeout is
+// exceeded, but it only fails if the expression still isn't true after the
+// margin time passes.
+#define EXPECT_TRUE_WAIT_MARGIN(ex, timeout, margin) \
+ GTEST_AMBIGUOUS_ELSE_BLOCKER_ \
+ if (bool res = true) { \
+ WAIT_(ex, timeout, res); \
+ if (res) \
+ break; \
+ RTC_LOG(LS_WARNING) << "Expression " << #ex << " still not true after " \
+ << (timeout) << "ms; waiting an additional " << margin \
+ << "ms"; \
+ WAIT_(ex, margin, res); \
+ if (!res) \
+ goto GTEST_CONCAT_TOKEN_(gunit_label_, __LINE__); \
+ } else \
+ GTEST_CONCAT_TOKEN_(gunit_label_, __LINE__) : EXPECT_TRUE(ex)
+
+// Wait until "ex" is true, or "timeout" expires, using fake clock where
+// messages are processed every millisecond.
+// TODO(pthatcher): Allow tests to control how many milliseconds to advance.
+#define SIMULATED_WAIT(ex, timeout, clock) \
+ for (int64_t start = rtc::TimeMillis(); \
+ !(ex) && rtc::TimeMillis() < start + (timeout);) { \
+ (clock).AdvanceTime(webrtc::TimeDelta::Millis(1)); \
+ }
+
+// This returns the result of the test in res, so that we don't re-evaluate
+// the expression in the XXXX_WAIT macros below, since that causes problems
+// when the expression is only true the first time you check it.
+#define SIMULATED_WAIT_(ex, timeout, res, clock) \
+ do { \
+ int64_t start = rtc::TimeMillis(); \
+ res = (ex); \
+ while (!res && rtc::TimeMillis() < start + (timeout)) { \
+ (clock).AdvanceTime(webrtc::TimeDelta::Millis(1)); \
+ res = (ex); \
+ } \
+ } while (0)
+
+// The typical EXPECT_XXXX, but done until true or a timeout with a fake clock.
+#define EXPECT_TRUE_SIMULATED_WAIT(ex, timeout, clock) \
+ do { \
+ bool res; \
+ SIMULATED_WAIT_(ex, timeout, res, clock); \
+ if (!res) { \
+ EXPECT_TRUE(ex); \
+ } \
+ } while (0)
+
+#define EXPECT_EQ_SIMULATED_WAIT(v1, v2, timeout, clock) \
+ GTEST_AMBIGUOUS_ELSE_BLOCKER_ \
+ if (bool res = true) { \
+ SIMULATED_WAIT_(v1 == v2, timeout, res, clock); \
+ if (!res) \
+ goto GTEST_CONCAT_TOKEN_(gunit_label_, __LINE__); \
+ } else \
+ GTEST_CONCAT_TOKEN_(gunit_label_, __LINE__) : EXPECT_EQ(v1, v2)
+
+#define ASSERT_TRUE_SIMULATED_WAIT(ex, timeout, clock) \
+ GTEST_AMBIGUOUS_ELSE_BLOCKER_ \
+ if (bool res = true) { \
+ SIMULATED_WAIT_(ex, timeout, res, clock); \
+ if (!res) \
+ goto GTEST_CONCAT_TOKEN_(gunit_label_, __LINE__); \
+ } else \
+ GTEST_CONCAT_TOKEN_(gunit_label_, __LINE__) : ASSERT_TRUE(ex)
+
+#define ASSERT_EQ_SIMULATED_WAIT(v1, v2, timeout, clock) \
+ GTEST_AMBIGUOUS_ELSE_BLOCKER_ \
+ if (bool res = true) { \
+ SIMULATED_WAIT_(v1 == v2, timeout, res, clock); \
+ if (!res) \
+ goto GTEST_CONCAT_TOKEN_(gunit_label_, __LINE__); \
+ } else \
+ GTEST_CONCAT_TOKEN_(gunit_label_, __LINE__) : ASSERT_EQ(v1, v2)
+
+// Usage: EXPECT_PRED_FORMAT2(AssertStartsWith, text, "prefix");
+testing::AssertionResult AssertStartsWith(const char* text_expr,
+ const char* prefix_expr,
+ absl::string_view text,
+ absl::string_view prefix);
+
+// Usage: EXPECT_PRED_FORMAT2(AssertStringContains, str, "substring");
+testing::AssertionResult AssertStringContains(const char* str_expr,
+ const char* substr_expr,
+ absl::string_view str,
+ absl::string_view substr);
+
+#endif // RTC_BASE_GUNIT_H_
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