S3-Upload-JMeter-Groovy
k6
S3-Upload-JMeter-Groovy | k6 | |
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3 | 20 | |
2 | 23,495 | |
- | 1.6% | |
3.9 | 9.6 | |
about 2 years ago | 6 days ago | |
Groovy | Go | |
Apache License 2.0 | GNU Affero General Public License v3.0 |
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S3-Upload-JMeter-Groovy
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Correlation - The Hard Way in JMeter
response = prev.getResponseDataAsString() //Extract the previous response def extractTitle = /(.+?)<\/title>/ def matcher = response =~ extractTitle if (matcher.size() >=1) { println matcher.findAll()[0][1] vars.put("extractTitle",matcher.findAll()[0][1]) }
Here is the URL https://jpetstore-qainsights.cloud.okteto.net/jpetstore/actions/Catalog.action
The first step is to read the HTTP response as a string using
prev.getResponseDataAsString()
prev
is an API call which extracts the previous SampleResult. Using the methodgetResponseDataAsString()
we can extract the whole response as a string and store it in a variable.The next two lines define our regular expression pattern and the matching conditions. Groovy comes with powerful regular expression pattern matching.
def extractTitle = /(.+?)<\/title>/ def matcher = response =~ extractTitle</code></pre> <p>The next block checks for any matches of >=1, then it will print the extracted string from the array list. Then, it will store the value to the variable <code>extractTitle</code> using the <code>vars.put</code> method.</p> <pre><code>if (matcher.size() >=1) { println matcher.findAll()[0][1] vars.put("extractTitle",matcher.findAll()[0][1]) }</code></pre> <p>Here is the output:</p> <p><figure><a href="https://qainsights.com/wp-content/uploads/2022/08/image-8.png"><img src="https://res.cloudinary.com/practicaldev/image/fetch/s--u-f194J0--/c_limit%2Cf_auto%2Cfl_progressive%2Cq_auto%2Cw_880/https://qainsights.com/wp-content/uploads/2022/08/image-8.png" alt="JMeter Output" loading="lazy" width="297" height="111"></a><figcaption>JMeter Output</figcaption></figure></p> <p>The above method is not effective for a couple of reasons. One, the array index to capture the desired string might be cumbersome for the complex response. Second, typically the pattern we use here is apt for the text response, not for the HTML response. For the complex HTML response, using the regular expression might not yield better performance. </p> <p><a href="https://github.com/QAInsights/Learn-JMeter-Series/tree/master/Correlation" rel="noopener noreferrer"><span></span><span>GitHub Repo</span></a></p> <h2>Using JSoup</h2> <p>To handle the HTML response effectively, it is better to use HTML parsers such as JSoup. </p> <p><em>JSoup is a Java library for working with real-world HTML. It provides a very convenient API for fetching URLs and extracting and manipulating data, using the best of HTML5 DOM methods and CSS selectors.</em></p> <p>Let us use <code><a href="https://qainsights.com/upload-files-to-aws-s3-in-jmeter-using-groovy/" rel="noreferrer noopener">Grab</a></code>, so that JMeter will download the dependencies on its own, else you need to download the JSoup jar and keep it in the <code>lib</code> or <code>ext</code> folder. </p> <pre><code>import org.jsoup.Jsoup import org.jsoup.nodes.Document import org.jsoup.nodes.Element import org.jsoup.select.Elements @Grab(group='org.jsoup', module='jsoup', version='1.15.2') response = prev.getResponseDataAsString() // Extract response Document doc = Jsoup.parse(response) println doc.title()</code></pre> <p><code>doc</code> object will parse the response and print the title to the command prompt in JMeter.</p> <p>To print all the links and its text, the below code snippet will be useful.</p> <pre><code> import org.jsoup.Jsoup import org.jsoup.nodes.Document import org.jsoup.nodes.Element import org.jsoup.select.Elements @Grab(group='org.jsoup', module='jsoup', version='1.15.2') response = prev.getResponseDataAsString() // Extract response Document doc = Jsoup.parse(response) println doc.title() // To print all the links and its text Elements links = doc.body().getElementsByTag("a"); for (Element link : links) { String linkHref = link.attr("href"); String linkText = link.text(); println linkHref + linkText }</code></pre> <p>To print all the list box elements and random list box values for the url (http://computer-database.gatling.io/computers/new), use the below code snippet.</p> <pre><code>import org.jsoup.Jsoup import org.jsoup.nodes.Document import org.jsoup.nodes.Element import org.jsoup.select.Elements @Grab(group='org.jsoup', module='jsoup', version='1.15.2') response = prev.getResponseDataAsString() // Extract response companyList = [] Random random = new Random() Document doc = Jsoup.parse(response) // To print all the list box elements Elements lists = doc.body().select("select option") for (Element list : lists) { println "Company is " + list.text() companyList.add(list.text()) } // To print random list box element println("The total companies are " + companyList.size()) println(companyList[random.nextInt(companyList.size())])</code></pre> <h2>Final Words</h2> <p>As you learned, by leveraging the <code>prev</code> API we can extract the response and then parse it using JSoup library or by writing desired regular expressions in a hard way without using the built-in elements such as Regular Expression Extractor or JSON Extractor and more. This approach might not save time, but it is worth learning this approach which comes handy in situations like interviews. </p>
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Upload files to AWS S3 in k6
In my last post, we discussed how to upload files to AWS S3 in JMeter using Groovy. We have also seen Grape package manager on JMeter. Recently, k6 announced its next iteration with a lot of new features and fixes. In this blog post, we are going to see how to upload files to AWS S3 in k6.
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Upload files to AWS S3 in JMeter using Groovy
Here is the repository to download the sample JMeter test plan for your reference.
k6
- K6: A modern load testing tool, using Go and JavaScript
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HTTPie Desktop: cross-platform API testing client for humans
I know this is about Desktop HTTP testing but has anyone experimented with command-line HTTP testing?
I recall having a good experience with https://github.com/grafana/k6 some eons ago.
It's geared towards writing load testing in JS but it also allows you to check HTTP body, headers, etc.
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Examples of using task scheduler with Go?
K6' usage - pretty friggin robust - is here https://github.com/grafana/k6/tree/master/js
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Announcing the Tracetest integration with k6: Deep Load Testing of your Cloud Native System
k6 allows you to build performant load tests that take a fraction of the resources legacy load-testing tools require. The tests are written in an easy-to-follow JavaScript form and can be extended with a number of extensions. The tests execute via a Go-JavaScript compiler so they take a minimal amount of resources when being executed, allowing the scaling of load tests with fewer resources.
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Maximizing concurrent outbound http requests
I’d use K6 for this. It’s been optimised for this purpose. https://github.com/grafana/k6
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Need help load testing an API
k6
- Recommended tooling for load-testing an express REST API
- IoT devices orchestrate load testing
- A modern load testing tool, using Go and JavaScript !!
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Upload files to AWS S3 in k6
k6 0.38.1 is a minor patch. To view all the new features, check out k6 0.38.0 tag. Following are the noteworthy features in 0.38.0.
What are some alternatives?
job-dsl-plugin - A Groovy DSL for Jenkins Jobs - Sweeeeet!
Vegeta - HTTP load testing tool and library. It's over 9000!
Learn-JMeter-Series - ⚡ Learn JMeter Series
Gatling - Modern Load Testing as Code
job-dsl-gradle-example - An example Job DSL project that uses Gradle for building and testing.
Hey - HTTP load generator, ApacheBench (ab) replacement
nextflow - A DSL for data-driven computational pipelines
artillery - The complete load testing platform. Everything you need for production-grade load tests. Serverless & distributed. Load test with Playwright. Load test HTTP APIs, GraphQL, WebSocket, and more. Use any Node.js module.
oauth2 - Go OAuth2
pactum - REST API Testing Tool for all levels in a Test Pyramid
Grafana - The open and composable observability and data visualization platform. Visualize metrics, logs, and traces from multiple sources like Prometheus, Loki, Elasticsearch, InfluxDB, Postgres and many more.
goimports - [mirror] Go Tools