1 files changed, 83 insertions, 0 deletions
diff --git a/media/mtransport/test/gtest_ringbuffer_dumper.h b/media/mtransport/test/gtest_ringbuffer_dumper.h
new file mode 100644
index 000000000..81eddbb2f
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+++ b/media/mtransport/test/gtest_ringbuffer_dumper.h
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+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this file,
+ * You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+// Original author: bcampen@mozilla.com
+
+#ifndef gtest_ringbuffer_dumper_h__
+#define gtest_ringbuffer_dumper_h__
+
+#include "mozilla/SyncRunnable.h"
+
+#define GTEST_HAS_RTTI 0
+#include "gtest/gtest.h"
+
+#include "mtransport_test_utils.h"
+#include "runnable_utils.h"
+#include "rlogconnector.h"
+
+using mozilla::RLogConnector;
+using mozilla::WrapRunnable;
+
+namespace test {
+class RingbufferDumper : public ::testing::EmptyTestEventListener {
+  public:
+    explicit RingbufferDumper(MtransportTestUtils* test_utils) :
+      test_utils_(test_utils)
+    {}
+
+    void ClearRingBuffer_s() {
+      RLogConnector::CreateInstance();
+      // Set limit to zero to clear the ringbuffer
+      RLogConnector::GetInstance()->SetLogLimit(0);
+      RLogConnector::GetInstance()->SetLogLimit(UINT32_MAX);
+    }
+
+    void DestroyRingBuffer_s() {
+      RLogConnector::DestroyInstance();
+    }
+
+    void DumpRingBuffer_s() {
+      std::deque<std::string> logs;
+      // Get an unlimited number of log lines, with no filter
+      RLogConnector::GetInstance()->GetAny(0, &logs);
+      for (auto l = logs.begin(); l != logs.end(); ++l) {
+        std::cout << *l << std::endl;
+      }
+      ClearRingBuffer_s();
+    }
+
+    virtual void OnTestStart(const ::testing::TestInfo& testInfo) {
+      mozilla::SyncRunnable::DispatchToThread(
+          test_utils_->sts_target(),
+          WrapRunnable(this, &RingbufferDumper::ClearRingBuffer_s));
+    }
+
+    virtual void OnTestEnd(const ::testing::TestInfo& testInfo) {
+      mozilla::SyncRunnable::DispatchToThread(
+          test_utils_->sts_target(),
+          WrapRunnable(this, &RingbufferDumper::DestroyRingBuffer_s));
+    }
+
+    // Called after a failed assertion or a SUCCEED() invocation.
+    virtual void OnTestPartResult(const ::testing::TestPartResult& testResult) {
+      if (testResult.failed()) {
+        // Dump (and empty) the RLogConnector
+        mozilla::SyncRunnable::DispatchToThread(
+            test_utils_->sts_target(),
+            WrapRunnable(this, &RingbufferDumper::DumpRingBuffer_s));
+      }
+    }
+
+  private:
+    MtransportTestUtils *test_utils_;
+};
+
+} // namespace test
+
+#endif // gtest_ringbuffer_dumper_h__
+
+
+