Quelle test_logStream.cpp Sprache: C

/*
* Copyright (c) 2016, 2022, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*
*/
#include "precompiled.hpp"
#include "jvm.h"
#include "logTestFixture.hpp"
#include "logTestUtils.inline.hpp"
#include "logging/log.hpp"
#include "logging/logMessage.hpp"
#include "logging/logStream.hpp"
#include "memory/resourceArea.hpp"
#include "unittest.hpp"

class LogStreamTest : public LogTestFixture {
protected:
  void verify_stream(outputStream* stream);
};

void LogStreamTest::verify_stream(outputStream* stream) {
  set_log_config(TestLogFileName, "gc=debug");
  stream->print("%d ", 3);
  stream->print("workers");
  stream->cr();
  EXPECT_TRUE(file_contains_substring(TestLogFileName, "3 workers\n"));
}

TEST_VM_F(LogStreamTest, from_log) {
  Log(gc) log;
  LogStream stream(log.debug());

  verify_stream(&stream);
}

TEST_VM_F(LogStreamTest, from_logtarget) {
  LogTarget(Debug, gc) log;
  LogStream stream(log);

  verify_stream(&stream);
}

TEST_VM_F(LogStreamTest, handle) {
  LogStreamHandle(Debug, gc) stream;

  verify_stream(&stream);
}

TEST_VM_F(LogStreamTest, no_rm) {
  ResourceMark rm;
  LogStream ls(Log(gc)::debug());
  verify_stream(&ls);
}

TEST_VM_F(LogStreamTest, TestLineBufferAllocation) {
  const int max_line_len = 1024;
  char* const test_string = (char*) os::malloc(max_line_len, mtLogging);
  memset(test_string, 'A', max_line_len);
  Log(gc) log;
  set_log_config(TestLogFileName, "gc=debug");
  for (int interval = 1; interval < max_line_len; interval++) {
    LogStream ls(log.debug());
    int written = 0;
    while (written < max_line_len) {
      const int to_write = MIN2(interval, max_line_len - written);
      ls.write(test_string, interval);
      written += interval;
      const char* const line_buffer = ls._current_line.buffer();
      for (int i = 0; i < written; i++) {
        ASSERT_TRUE(line_buffer[i] == 'A');
      }
      ASSERT_TRUE(line_buffer[written] == '\0');
    }
  }
}

// LogStream allows interleaving of other messages.
// Compare this to NonInterLeavingLogStreamTest_NonInterleavingStream
TEST_VM_F(LogStreamTest, InterleavingStream) {
  set_log_config(TestLogFileName, "gc=info");
  const char* message_order[] = {"1", "I am one line", "2", "but", "3", "I am not", NULL};
  {
    LogStream foo(Log(gc)::info());
    if (foo.is_enabled()) {
      foo.print("I am");
      log_info(gc)("1");
      foo.print_cr(" one line");
      log_info(gc)("2");
      foo.print_cr("but");
      log_info(gc)("3");
      foo.print_cr("I am not");
    }
  }
  EXPECT_TRUE(file_contains_substrings_in_order(TestLogFileName, message_order));
}

// NonInterleavingLogStream does not allow interleaving of other messages.
// Compare this to LogStreamTest_InterleavingStream
TEST_VM_F(LogStreamTest, NonInterleavingStream) {
  set_log_config(TestLogFileName, "gc=info");
  const char* message_order[] = {"1", "2" , "3", "I am one line", "but", "I am not", NULL};
  {
    LogMessage(gc) lm ;
    NonInterleavingLogStream foo{LogLevelType::Info, lm};
    if (foo.is_enabled()) {
      foo.print("I am");
      log_info(gc)("1");
      foo.print_cr(" one line");
      log_info(gc)("2");
      foo.print_cr("but");
      log_info(gc)("3");
      foo.print_cr("I am not");
    }
  }
  EXPECT_TRUE(file_contains_substrings_in_order(TestLogFileName, message_order));
}

// Test, in release build, that the internal line buffer of a LogStream
// object caps out at 1M.
TEST_VM_F(LogStreamTest, TestLineBufferAllocationCap) {
  LogStream ls(Log(logging)::info());
  for (size_t i = 0; i < (1*M + 512); i ++) {
    ls.print_raw("A");
  }
  const char* const line_buffer = ls._current_line.buffer();
  ASSERT_TRUE(strlen(line_buffer) == 1*M - 1);
  // reset to prevent assert for unflushed content
  ls._current_line.reset();
}

TEST_VM_F(LogStreamTest, autoflush_on_destruction) {
  Log(gc) log;
  set_log_config(TestLogFileName, "gc=debug");
  {
    LogStream stream(log.debug());
    stream.print("ABCD"); // Unfinished line. I expect not to assert upon leaving the scope.
  }
  EXPECT_TRUE(file_contains_substring(TestLogFileName, "ABCD\n"));
}

quality85%

¤ Dauer der Verarbeitung: 0.14 Sekunden (vorverarbeitet) ¤

Wurzel

Suchen

Beweissystem der NASA

Beweissystem Isabelle

NIST Cobol Testsuite

Cephes Mathematical Library

Wiener Entwicklungsmethode

Haftungshinweis

Die Informationen auf dieser Webseite wurden nach bestem Wissen sorgfältig zusammengestellt. Es wird jedoch weder Vollständigkeit, noch Richtigkeit, noch Qualität der bereit gestellten Informationen zugesichert.

Bemerkung:

Die farbliche Syntaxdarstellung ist noch experimentell.