1/*
2 * Copyright (c) 2015, 2017, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
23 */
24#include "precompiled.hpp"
25#include "gc/shared/gcTraceTime.inline.hpp"
26#include "logTestFixture.hpp"
27#include "logTestUtils.inline.hpp"
28#include "logging/log.hpp"
29#include "prims/jvm.h"
30#include "unittest.hpp"
31
32class LogTest : public LogTestFixture {
33};
34
35#define LOG_PREFIX_STR "THE_PREFIX "
36#define LOG_LINE_STR "a log line"
37
38size_t Test_log_prefix_prefixer(char* buf, size_t len) {
39  int ret = jio_snprintf(buf, len, LOG_PREFIX_STR);
40  assert(ret > 0, "Failed to print prefix. Log buffer too small?");
41  return (size_t) ret;
42}
43
44#ifdef ASSERT // 'test' tag is debug only
45TEST_VM_F(LogTest, prefix) {
46  set_log_config(TestLogFileName, "logging+test=trace");
47  log_trace(logging, test)(LOG_LINE_STR);
48  EXPECT_TRUE(file_contains_substring(TestLogFileName, LOG_PREFIX_STR LOG_LINE_STR));
49}
50#endif
51
52TEST_VM_F(LogTest, large_message) {
53  char big_msg[4096] = {0};
54  char Xchar = '~';
55
56  set_log_config(TestLogFileName, "logging=trace");
57
58  memset(big_msg, Xchar, sizeof(big_msg) - 1);
59  log_trace(logging)("%s", big_msg);
60
61  ResourceMark rm;
62  FILE* fp = fopen(TestLogFileName, "r");
63  ASSERT_NE((void*)NULL, fp);
64  char* output = read_line(fp);
65  fclose(fp);
66
67  size_t count = 0;
68  for (size_t ps = 0 ; output[ps + count] != '\0'; output[ps + count] == Xchar ? count++ : ps++);
69  EXPECT_EQ(sizeof(big_msg) - 1, count);
70}
71
72TEST_VM_F(LogTest, enabled_logtarget) {
73  set_log_config(TestLogFileName, "gc=debug");
74
75  LogTarget(Debug, gc) log;
76  EXPECT_TRUE(log.is_enabled());
77
78  // Log the line and expect it to be available in the output file.
79  log.print(LOG_TEST_STRING_LITERAL);
80
81  EXPECT_TRUE(file_contains_substring(TestLogFileName, LOG_TEST_STRING_LITERAL));
82}
83
84TEST_VM_F(LogTest, disabled_logtarget) {
85  set_log_config(TestLogFileName, "gc=info");
86
87  LogTarget(Debug, gc) log;
88  EXPECT_FALSE(log.is_enabled());
89
90  // Try to log, but expect this to be filtered out.
91  log.print(LOG_TEST_STRING_LITERAL);
92
93  // Log a dummy line so that fgets doesn't return NULL because the file is empty.
94  log_info(gc)("Dummy line");
95
96  EXPECT_FALSE(file_contains_substring(TestLogFileName, LOG_TEST_STRING_LITERAL));
97}
98
99TEST_VM_F(LogTest, enabled_loghandle) {
100  set_log_config(TestLogFileName, "gc=debug");
101
102  Log(gc) log;
103  LogHandle log_handle(log);
104
105  EXPECT_TRUE(log_handle.is_debug());
106
107  // Try to log through a LogHandle.
108  log_handle.debug("%d workers", 3);
109
110  EXPECT_TRUE(file_contains_substring(TestLogFileName, "3 workers"));
111}
112
113TEST_VM_F(LogTest, disabled_loghandle) {
114  set_log_config(TestLogFileName, "gc=info");
115
116  Log(gc) log;
117  LogHandle log_handle(log);
118
119  EXPECT_FALSE(log_handle.is_debug());
120
121  // Try to log through a LogHandle.
122  log_handle.debug("%d workers", 3);
123
124  // Log a dummy line so that fgets doesn't return NULL because the file is empty.
125  log_info(gc)("Dummy line");
126
127  EXPECT_FALSE(file_contains_substring(TestLogFileName, "3 workers"));
128}
129
130TEST_VM_F(LogTest, enabled_logtargethandle) {
131  set_log_config(TestLogFileName, "gc=debug");
132
133  LogTarget(Debug, gc) log;
134  LogTargetHandle log_handle(log);
135
136  EXPECT_TRUE(log_handle.is_enabled());
137
138  // Try to log through a LogHandle.
139  log_handle.print("%d workers", 3);
140
141  EXPECT_TRUE(file_contains_substring(TestLogFileName, "3 workers"));
142}
143
144TEST_VM_F(LogTest, disabled_logtargethandle) {
145  set_log_config(TestLogFileName, "gc=info");
146
147  LogTarget(Debug, gc) log;
148  LogTargetHandle log_handle(log);
149
150  EXPECT_FALSE(log_handle.is_enabled());
151
152  // Try to log through a LogHandle.
153  log_handle.print("%d workers", 3);
154
155  // Log a dummy line so that fgets doesn't return NULL because the file is empty.
156  log_info(gc)("Dummy line");
157
158  EXPECT_FALSE(file_contains_substring(TestLogFileName, "3 workers"));
159}
160