【发布时间】：2013-09-05 02:10:13
【问题描述】：
- 环境 - Linux。 sudo su - jenkins”
- 语言 - Java
-
项目结构
src/java -- Java 源代码test/java -- Junit 单元测试
src/java-test -- 集成测试
构建系统 - Gradle
build.gradle sourceSets 定义：
sourceSets {
main {
java {
srcDir 'src/java'
}
}
test {
java {
srcDir 'test/java'
}
}
integrationTest {
java {
srcDir 'src/java-test'
}
}
}
- 假设我在某处成功签出了项目“ProjectABC”的源代码。
当我运行“gradle clean build”时，我的本地机器上一切正常（Windows Win7 桌面） 使用 Cygwin 会话。 Java编译测试运行成功。
当我在 Linux 终端上运行“gradle clean build”（即使用 putty Session）时，它在测试任务期间失败，但 Java 编译部分成功。
当我运行“gralde clean build -x test”时，它可以工作（因为我们不包括测试任务调用）。
我在 putty 会话上使用“gradle clean build”时收到以下错误消息：
:compileTestJava
Download http://artifactory_server2:8081/artifactory/libs-thirdparty-local/junit/junit/4.11/junit-4.11.pom
Download http://artifactory_server2:8081/artifactory/libs-thirdparty-local/hamcrest/hamcrest-core/1.3/hamcrest-core-1.3.pom
Download http://artifactory_server2:8081/artifactory/libs-thirdparty-local/junit/junit/4.11/junit-4.11.jar
Download http://artifactory_server2:8081/artifactory/libs-thirdparty-local/hamcrest/hamcrest-core/1.3/hamcrest-core-1.3.jar
/production/jenkinsAKS/jobs/ProjectABCUtilities/workspace/test/java/com/tr/ids/util/test/tree/TestMultiParentTree.java:5: warning: unmappable character for encoding UTF8
* Copyright � 2005 Thomson MICROMEDEX. All Rights Reserved.
^
/production/jenkinsAKS/jobs/ProjectABCUtilities/workspace/test/java/com/tr/ids/util/test/tree/TestSingleParentTree.java:5: warning: unmappable character for encoding UTF8
* Copyright � 2005 Thomson MICROMEDEX. All Rights Reserved.
^
Note: Some input files use unchecked or unsafe operations.
Note: Recompile with -Xlint:unchecked for details.
:processTestResources UP-TO-DATE
:testClasses
:test
Download http://artifactory_server2:8081/artifactory/jcenter-cache/org/jacoco/org.jacoco.agent/0.6.2.201302030002/org.jacoco.agent-0.6.2.201302030002.pom
Download http://artifactory_server2:8081/artifactory/jcenter-cache/org/jacoco/org.jacoco.build/0.6.2.201302030002/org.jacoco.build-0.6.2.201302030002.pom
Download http://artifactory_server2:8081/artifactory/jcenter-cache/org/jacoco/org.jacoco.agent/0.6.2.201302030002/org.jacoco.agent-0.6.2.201302030002.jar
Xlib: connection to "localhost:12.0" refused by server
Xlib: PuTTY X11 proxy: wrong authorisation protocol attempted
com.tr.ids.util.test.chart.TestChartUtilities > getPieChart FAILED
java.lang.InternalError at TestChartUtilities.java:89
com.tr.ids.util.test.chart.TestChartUtilities > getLegend FAILED
java.lang.NoClassDefFoundError at TestChartUtilities.java:103
com.tr.ids.util.test.chart.TestChartUtilities > useString FAILED
java.lang.NoClassDefFoundError at TestChartUtilities.java:143
140 tests completed, 3 failed
:test FAILED
FAILURE: Build failed with an exception.
正如你在上面看到的，":test" 任务最后被调用。只有这个项目 ProjectABC 有这个测试用例，其中测试源代码有一个 .java 文件，其中包含以下代码：
即/test/java/com/tr/ids/util/test/...*.java, *.html
出现问题的文件是：TestChartUtilities.java
测试源代码 - Java 文件代码快照为：。 请参见第 89、103 和 143 行/行，其中行包含：“result = ChartUtil”。关键词
package com.tr.ids.util.test.chart;
import java.awt.Color;
import java.io.UnsupportedEncodingException;
import junit.framework.Test;
import junit.framework.TestSuite;
import junit.textui.TestRunner;
import com.tr.ids.util.api.chart.ChartData;
import com.tr.ids.util.api.chart.ChartUtil;
import com.tr.ids.util.test.BaseTestCase;
..
....
......more code here ...
....
...
// #############################################################################
// Test.
// #############################################################################
/**
* Test simple string with ampersand character.
*/
public void getPieChart() {
ChartData chartData = new ChartData();
try {
chartData.addChartItem(25, new Color(255,255,0));
chartData.addChartItem(25, new Color(255,0,255));
chartData.addChartItem(25, new Color(0,255,255));
}
catch (Exception e) {
fail("Exception occured while building the ChartData object (probably 0 amount)");
}
byte[] result = null;
try {
result = ChartUtil.drawPieChart(chartData, 300); // <--- line# 89 which is failing.
} catch (Exception e) {
fail("Exception occured trying to drawPieChart.");
}
assertNotNull("No pie chart returned", result);
}
..
....
......more code here ...
....
...
/**
* Test simple string with apostrophe and quote characters.
*/
public void getLegend() {
byte[] result = null;
try {
result = ChartUtil.drawLegend("ff0000", 40); // <--- line# 103
} catch (Exception e) {
fail("Exception occured while drawing a legend box");
}
assertNotNull("No legend image returned", result);
}
/**
* Test simple string with less than and greater than characters.
*/
public void useString() {
ChartData chartData = new ChartData();
try {
chartData.addChartItem(25, new Color(255,255,0));
chartData.addChartItem(25, new Color(255,0,255));
chartData.addChartItem(25, new Color(0,255,255));
}
catch (Exception e) {
fail("Exception occured while building the ChartData object (probably 0 amount)");
}
String graphDesc = null;
try {
graphDesc = chartData.generateStringRepresentaion(false);
} catch (UnsupportedEncodingException e1) {
fail("Exception occured while building the ChartData object (probably 0 amount)");
}
ChartData chartData2 = new ChartData();
try {
chartData2.loadFromString(graphDesc);
} catch (NumberFormatException e) {
fail("NumberFormatException thrown loading from string");
} catch (Exception e) {
e.printStackTrace();
fail("Exception thrown");
}
byte[] result = null;
try {
result = ChartUtil.drawPieChart(chartData2, 300); // <--- line# 143
} catch (Exception e) {
fail("Exception occured trying to drawPieChart.");
}
assertNotNull("No pie chart returned for chart loaded from string", result);
}
现在，正如我之前提到的，在 Cygwin（Windows 本地计算机）中，一切正常，因为我可能通过 Cygwin 在本地计算机上拥有所有可用的图形/AWT 设置/工具。
现在，我还能错过什么？？？
由于我在 Jenkins 作业中也遇到了同样的错误（当通过 Putty 会话运行时），我认为安装/使用 Jenkins“Xvfb 插件”会有所帮助：
让您在每次构建时控制 Xvfb 虚拟帧缓冲区 X11 服务器。它在构建开始之前启动 Xvfb，并在构建时停止它。如果您的构建需要 X11 访问权限，例如运行需要 GUI 的测试，这将非常有用。
我按照说明配置了这个插件：https://wiki.jenkins-ci.org/display/JENKINS/Xvfb+Plugin
但是，它仍然给我一个错误。
Jenkins 日志（当我不使用 Jenkins Xvfb 插件时）显示与我进入 Putty 会话时相同的错误。
同样，当调用“gradle clean build -x test”时，Jenkins 作业成功但我必须运行“gradle clean build”（失败）。
现在，在 Jenkins 全局配置（在 Manager Jenkins > 配置系统下）和 Job 的配置级别启用 Jenkins“Xvfb”插件时，我在执行期间在 Jenkins 日志中收到以下错误：
..
....
15:30:11 Xvfb starting$ Xvfb :2 -screen 0 1024x768x24 -fbdir /production/jenkinsAKS/2013-08-23_15-30-072456509552045645846xvfb
..
...
...
:compileTestJava
Download http://artifactory_server2:8081/artifactory/libs-thirdparty-local/junit/junit/4.11/junit-4.11.pom
Download http://artifactory_server2:8081/artifactory/libs-thirdparty-local/hamcrest/hamcrest-core/1.3/hamcrest-core-1.3.pom
Download http://artifactory_server2:8081/artifactory/libs-thirdparty-local/junit/junit/4.11/junit-4.11.jar
Download http://artifactory_server2:8081/artifactory/libs-thirdparty-local/hamcrest/hamcrest-core/1.3/hamcrest-core-1.3.jar
/production/jenkinsAKS/jobs/ProjectABCUtilities/workspace/test/java/com/tr/ids/util/test/tree/TestMultiParentTree.java:5: warning: unmappable character for encoding UTF8
* Copyright � 2005 Thomson MICROMEDEX. All Rights Reserved.
^
/production/jenkinsAKS/jobs/ProjectABCUtilities/workspace/test/java/com/tr/ids/util/test/tree/TestSingleParentTree.java:5: warning: unmappable character for encoding UTF8
* Copyright � 2005 Thomson MICROMEDEX. All Rights Reserved.
^
Note: Some input files use unchecked or unsafe operations.
Note: Recompile with -Xlint:unchecked for details.
:processTestResources UP-TO-DATE
:testClasses
:test
Download http://artifactory_server2:8081/artifactory/jcenter-cache/org/jacoco/org.jacoco.agent/0.6.2.201302030002/org.jacoco.agent-0.6.2.201302030002.pom
Download http://artifactory_server2:8081/artifactory/jcenter-cache/org/jacoco/org.jacoco.build/0.6.2.201302030002/org.jacoco.build-0.6.2.201302030002.pom
Download http://artifactory_server2:8081/artifactory/jcenter-cache/org/jacoco/org.jacoco.agent/0.6.2.201302030002/org.jacoco.agent-0.6.2.201302030002.jar
15:30:51 Xlib: connection to "localhost:16.0" refused by server
15:30:51 Xlib: PuTTY X11 proxy: wrong authorisation protocol attempted
15:30:52
com.tr.ids.util.test.chart.TestChartUtilities > getPieChart FAILED
java.lang.InternalError at TestChartUtilities.java:89
com.tr.ids.util.test.chart.TestChartUtilities > getLegend FAILED
java.lang.NoClassDefFoundError at TestChartUtilities.java:103
com.tr.ids.util.test.chart.TestChartUtilities > useString FAILED
java.lang.NoClassDefFoundError at TestChartUtilities.java:143
140 tests completed, 3 failed
:test FAILED
FAILURE: Build failed with an exception.
如你所见，这次我要排队了。
15:30:51 Xlib: connection to "localhost:16.0" refused by server
15:30:51 Xlib: PuTTY X11 proxy: wrong authorisation protocol attempted
15:30:52
在 Xvfb 的高级配置的作业级别配置中，我在“Xvfb 特定显示名称”框中提到的值为 13 或 16（根据插件），我在测试部分看到相同的错误（正如我之前得到的)，但这次与 X11 相关的错误为：
15:31:42 Xvfb starting$ Xvfb :16 -screen 0 1024x768x24 -fbdir /production/jenkinsAKS/2013-08-23_15-31-388454769980302593302xvfb
15:31:42 _XSERVTransSocketINETCreateListener: ...SocketCreateListener() failed
15:31:42 _XSERVTransMakeAllCOTSServerListeners: server already running
15:31:42
15:31:42 Fatal server error:
15:31:42 Cannot establish any listening sockets - Make sure an X server isn't already running
15:31:42 unlink: No such file or directory
15:31:42 unlink failed, errno 2
15:31:44 ERROR: Xvfb failed to start, consult the lines above for errors
ps -eAf|grep -i xvfb - 不显示任何在 Linux 服务器上运行的东西。
当 Jenkins 作业使用 Xvfb 插件运行时，它会在其执行期间自动启动/停止 X Display 的调用（根据 Jenkins Xvfb 帮助页面上的 Xvfb 插件功能）。
我还发现Linux机器上启用了X11转发：
# grep X11F /etc/ssh/sshd_config
X11Forwarding yes
#
我注意到的一件事是，我用来运行 Jenkins 的用户是：“jenkins”，一旦我以我的身份（c123456 id）登录到 Linux 机器，然后执行“sudo su - jenkins”，就会出现没有 .XAuthority 文件。
Doing: ... 确实表明它存在： ls -ltra ~c123456
-rw------- 1 c123456 devgroup 406 Aug 23 13:07 .Xauthority
但是，用户 jenkins 不存在同样的情况，即 ls -ltra ~jenkins（没有任何 .XAuthority 文件）。
Linux $DISPLAY 变量已设置，但“xclock”不起作用。我为 X11 转发启用/检查了 X11 设置（在客户端，即在目标 Linux 机器会话的 Windows 本地机器 putty 设置上）。
[c1234563@devserver1 ~]$ echo $DISPLAY 本地主机：15.0 [c1234563@devserver1 ~]$ xclock 与 localhost:15.0 的 X 连接断开（显式终止或服务器关闭）。 [c1234563@devserver1 ~]$
我尝试了这个链接，但仍然无法解决问题，按照它所说的解决它。
此时我可能缺少什么可以帮助我：
1) 使用 Putty 会话或通过 Jenkins 作业方式解决测试失败问题。
2) 我想知道 Xvfb 插件是否正在使用内存帧缓冲区执行 X Display，那么我不应该在我的本地 Windows 机器/目标 Linux 机器上安装任何 X Display 服务器/客户端，例如 XMing、XVnc/TightVnc 等。
【问题讨论】：
标签： linux testing jenkins x11 xlib