1/*
2 * Copyright (c) 2015, 2016, 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 "unittest.hpp"
30
31class LogTest : public LogTestFixture {
32};
33
34#define LOG_PREFIX_STR "THE_PREFIX "
35#define LOG_LINE_STR "a log line"
36
37size_t Test_log_prefix_prefixer(char* buf, size_t len) {
38  int ret = jio_snprintf(buf, len, LOG_PREFIX_STR);
39  assert(ret > 0, "Failed to print prefix. Log buffer too small?");
40  return (size_t) ret;
41}
42
43#ifdef ASSERT // 'test' tag is debug only
44TEST_VM_F(LogTest, prefix) {
45  set_log_config(TestLogFileName, "logging+test=trace");
46  log_trace(logging, test)(LOG_LINE_STR);
47  EXPECT_TRUE(file_contains_substring(TestLogFileName, LOG_PREFIX_STR LOG_LINE_STR));
48}
49#endif
50
51TEST_VM_F(LogTest, large_message) {
52  char big_msg[4096] = {0};
53  char Xchar = '~';
54
55  set_log_config(TestLogFileName, "logging=trace");
56
57  memset(big_msg, Xchar, sizeof(big_msg) - 1);
58  log_trace(logging)("%s", big_msg);
59
60  ResourceMark rm;
61  FILE* fp = fopen(TestLogFileName, "r");
62  ASSERT_NE((void*)NULL, fp);
63  char* output = read_line(fp);
64  fclose(fp);
65
66  size_t count = 0;
67  for (size_t ps = 0 ; output[ps + count] != '\0'; output[ps + count] == Xchar ? count++ : ps++);
68  EXPECT_EQ(sizeof(big_msg) - 1, count);
69}
70
71TEST_VM_F(LogTest, enabled_logtarget) {
72  set_log_config(TestLogFileName, "gc=debug");
73
74  LogTarget(Debug, gc) log;
75  EXPECT_TRUE(log.is_enabled());
76
77  // Log the line and expect it to be available in the output file.
78  log.print(LOG_TEST_STRING_LITERAL);
79
80  EXPECT_TRUE(file_contains_substring(TestLogFileName, LOG_TEST_STRING_LITERAL));
81}
82
83TEST_VM_F(LogTest, disabled_logtarget) {
84  set_log_config(TestLogFileName, "gc=info");
85
86  LogTarget(Debug, gc) log;
87  EXPECT_FALSE(log.is_enabled());
88
89  // Try to log, but expect this to be filtered out.
90  log.print(LOG_TEST_STRING_LITERAL);
91
92  // Log a dummy line so that fgets doesn't return NULL because the file is empty.
93  log_info(gc)("Dummy line");
94
95  EXPECT_FALSE(file_contains_substring(TestLogFileName, LOG_TEST_STRING_LITERAL));
96}
97
98TEST_VM_F(LogTest, enabled_loghandle) {
99  set_log_config(TestLogFileName, "gc=debug");
100
101  Log(gc) log;
102  LogHandle log_handle(log);
103
104  EXPECT_TRUE(log_handle.is_debug());
105
106  // Try to log through a LogHandle.
107  log_handle.debug("%d workers", 3);
108
109  EXPECT_TRUE(file_contains_substring(TestLogFileName, "3 workers"));
110}
111
112TEST_VM_F(LogTest, disabled_loghandle) {
113  set_log_config(TestLogFileName, "gc=info");
114
115  Log(gc) log;
116  LogHandle log_handle(log);
117
118  EXPECT_FALSE(log_handle.is_debug());
119
120  // Try to log through a LogHandle.
121  log_handle.debug("%d workers", 3);
122
123  // Log a dummy line so that fgets doesn't return NULL because the file is empty.
124  log_info(gc)("Dummy line");
125
126  EXPECT_FALSE(file_contains_substring(TestLogFileName, "3 workers"));
127}
128
129TEST_VM_F(LogTest, enabled_logtargethandle) {
130  set_log_config(TestLogFileName, "gc=debug");
131
132  LogTarget(Debug, gc) log;
133  LogTargetHandle log_handle(log);
134
135  EXPECT_TRUE(log_handle.is_enabled());
136
137  // Try to log through a LogHandle.
138  log_handle.print("%d workers", 3);
139
140  EXPECT_TRUE(file_contains_substring(TestLogFileName, "3 workers"));
141}
142
143TEST_VM_F(LogTest, disabled_logtargethandle) {
144  set_log_config(TestLogFileName, "gc=info");
145
146  LogTarget(Debug, gc) log;
147  LogTargetHandle log_handle(log);
148
149  EXPECT_FALSE(log_handle.is_enabled());
150
151  // Try to log through a LogHandle.
152  log_handle.print("%d workers", 3);
153
154  // Log a dummy line so that fgets doesn't return NULL because the file is empty.
155  log_info(gc)("Dummy line");
156
157  EXPECT_FALSE(file_contains_substring(TestLogFileName, "3 workers"));
158}
159