模拟詹金斯管道步骤

Question

我有一个在我的jenkinsfile中使用的类，这里是其简化版本：

class TestBuild {
    def build(jenkins) {
        jenkins.script {
            jenkins.sh(returnStdout: true, script: "echo build")
        }
    }
}

我提供this的詹金斯在jenkinsfile使用时参数。在这里模拟具有脚本和sh的jenkins对象的最佳方法是什么？谢谢你的帮助

Answer 1

前一周我遇到了类似的问题，我想到了：

import org.jenkinsci.plugins.workflow.cps.CpsScript

def mockCpsScript() {
    return [
        'sh': { arg ->
            def script
            def returnStdout
            // depending on sh is called arg is either a map or a string vector with arguments
            if (arg.length == 1 && arg[0] instanceof Map) {
                script = arg[0]['script']
                returnStdout = arg[0]['returnStdout']
            } else {
                script = arg[0]
            }
            println "Calling sh with script: ${script}"
        },
        'script' : { arg ->
              arg[0]()
        },
    ] as CpsScript
}

并与您的脚本一起使用（以未命名的sh调用扩展）：

class TestBuild {
    def build(jenkins) {
        jenkins.script {
            jenkins.sh(returnStdout: true, script: "echo build")
            jenkins.sh("echo no named arguments")
        }
    }
}

def obj = new TestBuild()
obj.build(mockCpsScript())

它输出：

[Pipeline] echo
Calling sh with script: echo build
[Pipeline] echo
Calling sh with script: echo no named arguments

现在，它本身并不是很有用，但是很容易添加定义模拟方法行为的逻辑，例如，此版本根据要读取的目录和文件来控制readFile返回的内容：

import org.jenkinsci.plugins.workflow.cps.CpsScript

def mockCpsScript(Map<String, String> readFileMap) {
    def currentDir = null
    return [
        'dir' : { arg ->
            def dir = arg[0]
            def subClosure = arg[1]
            if (currentDir != null) {
                throw new IllegalStateException("Dir '${currentDir}' is already open, trying to open '${dir}'")
            }
            currentDir = dir
            try {
                subClosure()
            } finally {
                currentDir = null
            }
        },
        'echo': { arg ->
            println(arg[0])
        },
        'readFile' : { arg ->
            def file = arg[0]
            if (currentDir != null) {
                file = currentDir + '/' + file
            }
            def contents = readFileMap[file]
            if (contents == null) {
                throw new IllegalStateException("There is no mapped file '${file}'!")
            }
            return contents
        },
        'script' : { arg ->
              arg[0]()
        },
    ] as CpsScript
}

class TestBuild {
    def build(jenkins) {
        jenkins.script {
            jenkins.dir ('a') {
                jenkins.echo(jenkins.readFile('some.file'))
            }
            jenkins.echo(jenkins.readFile('another.file'))
        }
    }
}

def obj = new TestBuild()
obj.build(mockCpsScript(['a/some.file' : 'Contents of first file', 'another.file' : 'Some other contents']))

输出：

[Pipeline] echo
Contents of first file
[Pipeline] echo
Some other contents

如果需要使用currentBuild或类似的属性，则可以在闭包强制之后分配这些属性：

import org.jenkinsci.plugins.workflow.cps.CpsScript

def mockCpsScript() {
    def jenkins = [
        // same as above
    ] as CpsScript
    jenkins.currentBuild = [
        // Add attributes you need here. E.g. result:
        result:null,
    ]
    return jenkins
}