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 "jvm.h"
26#include "gc/shared/gcTraceTime.inline.hpp"
27#include "logTestFixture.hpp"
28#include "logTestUtils.inline.hpp"
29#include "logging/log.hpp"
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