释放双眼，带上耳机，听听看~！
这篇来思考下如何写一个方法，可以修改config.properties文件里面的属性。加入这个方法可以根据key修改value，那么我们就可以通过jenkins上变量，让用户输入，来修改config.properties文件里面的值。例如测试服务器地址和浏览器类型的名称。如果用户在Jenkins界面填写浏览器是chrome，那么我们就修改config.properties里面的browser=chrome，如果用户填写的是firefox，那么我们就在启动selenium测试之前去修改browser=firefox。这样，灵活的控制参数，就达到了我们第一个需求。
1.根据Java的方法
我们知道grooy是可以无缝执行java代码，我也写了一个java的代码，放在pipleline/selenium.groovy文件里，结果我在测试的时候，报了一个错误，这个需要jenkins管理员去approve这个脚本的执行，但是我的jenkins环境上没有这个approve的相关的script，很神奇。
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2import java.io.FileInputStream;
3import java.io.FileNotFoundException;
4import java.io.FileOutputStream;
5import java.io.IOException;
6import java.util.Properties;
7
8
9def setKeyValue(key, value, file_path) {
10 Properties prop = new Properties()
11 try {
12 prop.load(new FileInputStream(file_path))
13 }catch (FileNotFoundException e){
14 e.printStackTrace()
15 }catch (IOException e) {
16 e.printStackTrace()
17 }
18
19 // write into file
20 try {
21 prop.setProperty(key, value)
22 FileOutputStream fos = new FileOutputStream(file_path)
23 prop.store(fos, null)
24 fos.close()
25 }catch (FileNotFoundException e){
26 e.printStackTrace()
27 }catch (IOException e) {
28 e.printStackTrace()
29 }
30}
31
32return this;
33
结果测试下，报了一个沙箱错误:
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2
其实，这个类似错误，我在工作中也遇到过，一般来说管理员去点击批准这个脚本执行就可以。我的环境，在升级一个script security相关的插件之后，连脚本批准入口都不显示了，很神奇。只好换一种思路去写代码了。
2.Pipeline自带的readFile和writeFile
我的思路是这样的，先通过readFile方法获取到原来文件的内容，返回是一个字符串对象。然后根据换行符把字符串对象给切片，拿到一个list对象，遍历这个list，用if判断，根据Key找到这行，然后改写这行。由于这我们只是在内存改写，所以需要提前定义一个list对象来把改写和没有改写的都给add到新list，然后定义一个空字符串，遍历新list，每次拼接一个list元素都加上换行符。这样得到字符串就是一个完整内容，然后把这个内容利用writeFile方法写回到原来的config文件。
具体代码是这样的。
selenium_jenkins.groovy文件
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2
3pipeline{
4
5 agent any
6 parameters {
7 string(name: 'BROWSER_TYPE', defaultValue: 'chrome', description: 'Type a browser type, should be chrome/firefox')
8 string(name: 'TEST_SERVER_URL', defaultValue: '', description: 'Type the test server url')
9 string(name: 'NODE', defaultValue: 'win-anthony-demo', description: 'Please choose a windows node to execute this job.')
10 }
11
12 stages{
13 stage("Initialization"){
14 steps{
15 script{
16 browser = BROWSER_TYPE?.trim()
17 test_url = TEST_SERVER_URL?.trim()
18 win_node = NODE?.trim()
19 }
20 }
21 }
22
23 stage("Git Checkout"){
24 steps{
25 script{
26 node(win_node) {
27 checkout([$class: 'GitSCM', branches: [[name: '*/master']],
28 userRemoteConfigs: [[credentialsId: '6f4fa66c-eb02-46dc-a4b3-3a232be5ef6e',
29 url: 'https://github.com/QAAutomationLearn/JavaAutomationFramework.git']]])
30 }
31 }
32 }
33 }
34
35 stage("Set key value"){
36 steps{
37 script{
38 node(win_node){
39 selenium_test = load env.WORKSPACE + "\\pipeline\\selenium.groovy"
40 config_file = env.WORKSPACE + "\\Configs\\config.properties"
41 try{
42 selenium_test.setKeyValue2("browser", "abc123", config_file)
43 file_content = readFile config_file
44 println file_content
45 }catch (Exception e) {
46 error("Error met:" + e)
47 }
48 }
49 }
50 }
51 }
52
53 stage("Run Selenium Test"){
54 steps{
55 script{
56 node(win_node){
57 println "Here will start to run selenium test."
58 }
59 }
60 }
61 }
62 }
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66}
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68
selenium.groovy文件
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2import java.io.FileInputStream;
3import java.io.FileNotFoundException;
4import java.io.FileOutputStream;
5import java.io.IOException;
6import java.util.Properties;
7
8
9def setKeyValue(key, value, file_path) {
10 Properties prop = new Properties()
11 try {
12 prop.load(new FileInputStream(file_path))
13 }catch (FileNotFoundException e){
14 e.printStackTrace()
15 }catch (IOException e) {
16 e.printStackTrace()
17 }
18
19 // write into file
20 try {
21 prop.setProperty(key, value)
22 FileOutputStream fos = new FileOutputStream(file_path)
23 prop.store(fos, null)
24 fos.close()
25 }catch (FileNotFoundException e){
26 e.printStackTrace()
27 }catch (IOException e) {
28 e.printStackTrace()
29 }
30}
31
32def setKeyValue2(key, value, file_path) {
33 // read file, get string object
34 file_content_old = readFile file_path
35 println file_content_old
36 //遍历每一行，判断，然后替换字符串
37 lines = file_content_old.tokenize("\n")
38 new_lines = []
39 lines.each { line ->
40 if(line.trim().startsWith(key)) {
41 line = key + "=" + value
42 new_lines.add(line)
43 }else {
44 new_lines.add(line)
45 }
46 }
47 // write into file
48 file_content_new = ""
49 new_lines.each{line ->
50 file_content_new += line + "\n"
51 }
52
53 writeFile file: file_path, text: file_content_new, encoding: "UTF-8"
54}
55return this;
56
这里看第二个方法是我的思路，虽然比较啰嗦，但是实现了这个修改文件的需求。
测试结果看看是否把browser = chrome 改成browser = abc123
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2[Pipeline] echo
3baseURL=http://demo.guru99.com/v4/index.php
4# https://www.utest.com backup website
5userName=mngr169501
6password=sYhYtUd
7
8# browser driver path
9firefoxpath=./Drivers\\geckodriver.exe
10chromepath=./Drivers\\chromedriver.exe
11
12# browser instance
13# the browser vlaue will only be firefox or chrome here
14browser=chrome
15
16
17[Pipeline] writeFile
18[Pipeline] readFile
19[Pipeline] echo
20baseURL=http://demo.guru99.com/v4/index.php
21# https://www.utest.com backup website
22userName=mngr169501
23password=sYhYtUd
24
25# browser driver path
26firefoxpath=./Drivers\\geckodriver.exe
27chromepath=./Drivers\\chromedriver.exe
28
29# browser instance
30# the browser vlaue will only be firefox or chrome here
31browser=abc123
32
33
34[Pipeline] }
35[Pipeline] // node
36
你如果对日志不放心，你可以去你拉取之后代码路径去看看是否修改了，修改的对不对。
接下来，
我把github里面config.properties 中browser的值改成firefox，然后我通过pipeline代码去改成chrome，来跑一个集成测试，看看行不行，测试环境URL就无法改，这个没有第二套同样产品的地址，这个就留个你们自己项目上的测试环境和生产环境，自己试一下。
提交之后，两个文件代码如下
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2
3pipeline{
4
5 agent any
6 parameters {
7 string(name: 'BROWSER_TYPE', defaultValue: 'chrome', description: 'Type a browser type, should be chrome/firefox')
8 string(name: 'TEST_SERVER_URL', defaultValue: '', description: 'Type the test server url')
9 string(name: 'NODE', defaultValue: 'win-anthony-demo', description: 'Please choose a windows node to execute this job.')
10 }
11
12 stages{
13 stage("Initialization"){
14 steps{
15 script{
16 browser_type = BROWSER_TYPE?.trim()
17 test_url = TEST_SERVER_URL?.trim()
18 win_node = NODE?.trim()
19 }
20 }
21 }
22
23 stage("Git Checkout"){
24 steps{
25 script{
26 node(win_node) {
27 checkout([$class: 'GitSCM', branches: [[name: '*/master']],
28 userRemoteConfigs: [[credentialsId: '6f4fa66c-eb02-46dc-a4b3-3a232be5ef6e',
29 url: 'https://github.com/QAAutomationLearn/JavaAutomationFramework.git']]])
30 }
31 }
32 }
33 }
34
35 stage("Set key value"){
36 steps{
37 script{
38 node(win_node){
39 selenium_test = load env.WORKSPACE + "\\pipeline\\selenium.groovy"
40 config_file = env.WORKSPACE + "\\Configs\\config.properties"
41 try{
42 selenium_test.setKeyValue2("browser", browser_type, config_file)
43 //test_url 你自己替代
44 file_content = readFile config_file
45 println file_content
46 }catch (Exception e) {
47 error("Error met:" + e)
48 }
49 }
50 }
51 }
52 }
53
54 stage("Run Selenium Test"){
55 steps{
56 script{
57 node(win_node){
58 run_bat = env.WORKSPACE + "\\run.bat"
59 bat (run_bat)
60 }
61 }
62 }
63 }
64 }
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66
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68}
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2import java.io.FileInputStream;
3import java.io.FileNotFoundException;
4import java.io.FileOutputStream;
5import java.io.IOException;
6import java.util.Properties;
7
8def setKeyValue(key, value, file_path) {
9 // read file, get string object
10 file_content_old = readFile file_path
11 println file_content_old
12 //遍历每一行，判断，然后替换字符串
13 lines = file_content_old.tokenize("\n")
14 new_lines = []
15 lines.each { line ->
16 if(line.trim().startsWith(key)) {
17 line = key + "=" + value
18 new_lines.add(line)
19 }else {
20 new_lines.add(line)
21 }
22 }
23 // write into file
24 file_content_new = ""
25 new_lines.each{line ->
26 file_content_new += line + "\n"
27 }
28
29 writeFile file: file_path, text: file_content_new, encoding: "UTF-8"
30}
31return this;
32
测试结果：
http://65.49.216.200:8080/job/selenium-pipeline-demo/23/console
主要日志如下：
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2Running on win-anthony-demo in C:\JenkinsNode\workspace\selenium-pipeline-demo
3[Pipeline] {
4[Pipeline] load
5[Pipeline] { (C:\JenkinsNode\workspace\selenium-pipeline-demo\pipeline\selenium.groovy)
6[Pipeline] }
7[Pipeline] // load
8[Pipeline] readFile
9[Pipeline] echo
10baseURL=http://demo.guru99.com/v4/index.php
11# https://www.utest.com backup website
12userName=mngr169501
13password=sYhYtUd
14
15# browser driver path
16firefoxpath=./Drivers\\geckodriver.exe
17chromepath=./Drivers\\chromedriver.exe
18
19# browser instance
20# the browser vlaue will only be firefox or chrome here
21browser=chrome
22
23
24[Pipeline] writeFile
25[Pipeline] readFile
26[Pipeline] echo
27baseURL=http://demo.guru99.com/v4/index.php
28# https://www.utest.com backup website
29userName=mngr169501
30password=sYhYtUd
31
32# browser driver path
33firefoxpath=./Drivers\\geckodriver.exe
34chromepath=./Drivers\\chromedriver.exe
35
36# browser instance
37# the browser vlaue will only be firefox or chrome here
38browser=chrome
39
40
41[Pipeline] }
42[Pipeline] // node
43[Pipeline] }
44[Pipeline] // script
45[Pipeline] }
46[Pipeline] // stage
47[Pipeline] stage
48[Pipeline] { (Run Selenium Test)
49[Pipeline] script
50[Pipeline] {
51[Pipeline] node
52Running on win-anthony-demo in C:\JenkinsNode\workspace\selenium-pipeline-demo
53[Pipeline] {
54[Pipeline] bat
55[selenium-pipeline-demo] Running batch script
56C:\JenkinsNode\workspace\selenium-pipeline-demo>C:\JenkinsNode\workspace\selenium-pipeline-demo\run.bat
57
58C:\JenkinsNode\workspace\selenium-pipeline-demo>cd C:\Users\Anthont\git\AnthonyWebAutoDemo
59
60C:\Users\Anthont\git\AnthonyWebAutoDemo>mvn clean install
61[INFO] Scanning for projects...
62[WARNING]
63[WARNING] Some problems were encountered while building the effective model for AnthonyAutoV10:AnthonyAutoV10:jar:0.0.1-SNAPSHOT
64[WARNING] 'build.plugins.plugin.version' for org.apache.maven.plugins:maven-compiler-plugin is missing. @ line 19, column 15
65[WARNING]
66[WARNING] It is highly recommended to fix these problems because they threaten the stability of your build.
67[WARNING]
68[WARNING] For this reason, future Maven versions might no longer support building such malformed projects.
69[WARNING]
70[INFO]
71[INFO] -------------------< AnthonyAutoV10:AnthonyAutoV10 >--------------------
72[INFO] Building AnthonyAutoV10 0.0.1-SNAPSHOT
73[INFO] --------------------------------[ jar ]---------------------------------
74[WARNING] The POM for com.beust:jcommander:jar:1.66 is missing, no dependency information available
75[INFO]
76[INFO] --- maven-clean-plugin:2.5:clean (default-clean) @ AnthonyAutoV10 ---
77[INFO] Deleting C:\Users\Anthont\git\AnthonyWebAutoDemo\target
78[INFO]
79[INFO] --- maven-resources-plugin:2.6:resources (default-resources) @ AnthonyAutoV10 ---
80[INFO] Using 'UTF-8' encoding to copy filtered resources.
81[INFO] skip non existing resourceDirectory C:\Users\Anthont\git\AnthonyWebAutoDemo\src\main\resources
82[INFO]
83[INFO] --- maven-compiler-plugin:3.1:compile (default-compile) @ AnthonyAutoV10 ---
84[INFO] Nothing to compile - all classes are up to date
85[INFO]
86[INFO] --- maven-resources-plugin:2.6:testResources (default-testResources) @ AnthonyAutoV10 ---
87[INFO] Using 'UTF-8' encoding to copy filtered resources.
88[INFO] skip non existing resourceDirectory C:\Users\Anthont\git\AnthonyWebAutoDemo\src\test\resources
89[INFO]
90[INFO] --- maven-compiler-plugin:3.1:testCompile (default-testCompile) @ AnthonyAutoV10 ---
91[INFO] Changes detected - recompiling the module!
92[INFO] Compiling 11 source files to C:\Users\Anthont\git\AnthonyWebAutoDemo\target\test-classes
93[INFO]
94[INFO] --- maven-surefire-plugin:2.18.1:test (default-test) @ AnthonyAutoV10 ---
95[INFO] Surefire report directory: C:\Users\Anthont\git\AnthonyWebAutoDemo\target\surefire-reports
96
97-------------------------------------------------------
98 T E S T S
99-------------------------------------------------------
100Running TestSuite
101Starting ChromeDriver 2.40.565498 (ea082db3280dd6843ebfb08a625e3eb905c4f5ab) on port 1780
102Only local connections are allowed.
103Dec 23, 2018 9:52:43 PM org.openqa.selenium.remote.ProtocolHandshake createSession
104INFO: Detected dialect: OSS
105 INFO [main] (TC_NewCustomer_004.java:22)- Login is completed
106 INFO [main] (TC_NewCustomer_004.java:28)- Proving customer details.............
107 INFO [main] (TC_NewCustomer_004.java:46)- Validating adding new customer..............
108Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 166.426 sec - in TestSuite
109
110Results :
111
112Tests run: 1, Failures: 0, Errors: 0, Skipped: 0
113
114[INFO]
115[INFO] --- maven-jar-plugin:2.4:jar (default-jar) @ AnthonyAutoV10 ---
116[WARNING] JAR will be empty - no content was marked for inclusion!
117[INFO] Building jar: C:\Users\Anthont\git\AnthonyWebAutoDemo\target\AnthonyAutoV10-0.0.1-SNAPSHOT.jar
118[INFO]
119[INFO] --- maven-install-plugin:2.4:install (default-install) @ AnthonyAutoV10 ---
120[INFO] Installing C:\Users\Anthont\git\AnthonyWebAutoDemo\target\AnthonyAutoV10-0.0.1-SNAPSHOT.jar to C:\Users\Anthont\.m2\repository\AnthonyAutoV10\AnthonyAutoV10\0.0.1-SNAPSHOT\AnthonyAutoV10-0.0.1-SNAPSHOT.jar
121[INFO] Installing C:\Users\Anthont\git\AnthonyWebAutoDemo\pom.xml to C:\Users\Anthont\.m2\repository\AnthonyAutoV10\AnthonyAutoV10\0.0.1-SNAPSHOT\AnthonyAutoV10-0.0.1-SNAPSHOT.pom
122[INFO] ------------------------------------------------------------------------
123[INFO] BUILD SUCCESS
124[INFO] ------------------------------------------------------------------------
125[INFO] Total time: 03:05 min
126[INFO] Finished at: 2018-12-23T21:55:24+08:00
127[INFO] ------------------------------------------------------------------------
128[Pipeline] }
129[Pipeline] // node
130[Pipeline] }
131[Pipeline] // script
132[Pipeline] }
133[Pipeline] // stage
134[Pipeline] }
135[Pipeline] // withEnv
136[Pipeline] }
137[Pipeline] // node
138[Pipeline] End of Pipeline
139Finished: SUCCESS
140
这里灵活的参数，我们实现了需求。
下一篇文章，我们来思考下如何把测试过程的日志和报告文件给放到Jenkins上，点击链接可以预览。这个我之前也没有做过，先研究下，有知道的同学可以告诉我哈。
