将 .properties 文件设置为 testng.xml [英] Set .properties file to testng.xml

问题描述

我有一个 data.properties 文件，其中包含以下几行:

I have a data.properties file with the following lines :

data.login=login
data.password=password

我有一个简单的测试(使用 testng):

and I have a simple test(with testng):

@Test
@Parameters({"data.login","data.password"})
public void testSimpleExample(String login, String password) throws Exception {
    Assert.assertTrue(login.equals("login"));
    Assert.assertTrue(password.equals("password"));
}

在 testng.xml 文件中我可以写下一个字符串:

In testng.xml file I can write next strings :

<parameter name="data.login" value="login" />
<parameter name="data.password" value="password" />

但我想使用我的 data.properties 文件.我可以以某种方式将此文件设置为 testng.xml 并使用此属性文件中的参数吗?当然没有使用下一个代码:

but I want to use my data.properties file. Can I somehow set this file into testng.xml and use parameters from this properties file ? Of course without using next code :

Properties properties = new Properties();
properties.load(....);
    ....
properties.getProperty("data.login");

推荐答案

如果您不想使用 @juherr 提出的数据提供程序方法，这里有另一种方法.

Here's another way of doing it, if you don't want to make use of the data provider approach that @juherr has called out.

属性文件代表一个键/值对，所以本质上它是一个映射.因此，您执行以下操作:

Properties file represents a Key/Value pair, so essentially its a map. So you do the following :

1. 确保您使用的是 TestNG v6.11(或)更高版本.
2. 使用 @Parameters 注释，就像您要从 TestNG 套件 xml 文件中获取值一样.
3. 构建一个 org.testng.IAlterSuiteListener 实现，您可以在其中读取属性文件，提取地图，然后将此地图作为参数注入您的 XmlSuite 对象.
4. 您可以通过套件 xml 中的 <listeners> 标记(或)通过服务加载器机制连接您在 (3) 中创建的此侦听器.

1. Ensure you are using TestNG v6.11 (or) higher.
2. Use the @Parameters annotation as if you are going to get the values from your TestNG suite xml file.
3. Build a org.testng.IAlterSuiteListener implementation wherein you read your properties file, extract out the map, and then inject this map as parameters into your XmlSuite object.
4. You wire in this listener that you created in (3) either via the <listeners> tag in your suite xml (or) via a Service loader mechanism.

现在您可以继续使用 @Parameters 注释，但您的所有属性都是动态注入的.

Now you can continue to work with the @Parameters annotation, but all of your properties are injected dynamically.

这是所有这些操作的示例.

Here's a sample of all this in action.

TestClass 如下所示

package com.rationaleemotions.stackoverflow.qn46224926;

import org.testng.annotations.Parameters;
import org.testng.annotations.Test;

public class TestClass {
    @Test
    @Parameters("name")
    public void testMethod(String name) {
        System.err.println("Hello " + name);
    }
}

IAlterSuiteListener 实现如下所示:

package com.rationaleemotions.stackoverflow.qn46224926;

import org.testng.IAlterSuiteListener;
import org.testng.xml.XmlSuite;

import java.io.FileReader;
import java.io.IOException;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Properties;

public class PropertyInjectorListener implements IAlterSuiteListener {
    @Override
    public void alter(List<XmlSuite> suites) {
        XmlSuite suite = suites.get(0);
        Properties properties = new Properties();
        try {
            properties.load(new FileReader("src/test/resources/46224926/qn46224926.properties"));
        } catch (IOException e) {
            throw new RuntimeException(e);
        }
        Map<String, String> params = new HashMap<>();
        for (Map.Entry<Object, Object> each : properties.entrySet()) {
            params.put(each.getKey().toString(), each.getValue().toString());

        }
        suite.setParameters(params);
    }
}

示例属性文件如下所示:

A sample properties file can look like below:

name=Jack

套件 xml 文件如下所示:

The suite xml file would look like below:

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE suite SYSTEM "http://testng.org/testng-1.0.dtd">
<suite name="46224926_Suite" verbose="2">
    <listeners>
        <listener class-name="com.rationaleemotions.stackoverflow.qn46224926.PropertyInjectorListener"/>
    </listeners>
    <test name="46224926_test">
        <classes>
            <class name="com.rationaleemotions.stackoverflow.qn46224926.TestClass"/>
        </classes>
    </test>
</suite>

当你运行它时，你应该看到如下输出:

When you run this, you should see an output as below:

...
... TestNG 6.12 by Cédric Beust ([e-mail])
...
Hello Jack
PASSED: testMethod("Jack")

===============================================
    46224926_test
    Tests run: 1, Failures: 0, Skips: 0
===============================================

===============================================
46224926_Suite
Total tests run: 1, Failures: 0, Skips: 0
===============================================

如您所见，套件 xml 文件根本不包含任何 标记.但是 @Test 方法仍然假设它将通过 @Parameters 注释获取参数值.由于我们的侦听器负责读取所有属性并将它们作为参数映射注入，因此 TestNG 不会抱怨.

As you can see, the suite xml file does not contain any <parameters> tag at all. But the @Test method still assumes that it will get parameter values via the @Parameters annotation. Since our listener takes care of reading all the properties and injecting them as a parameter map, TestNG does not complain.

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