Programming

How to insert test context inside XML of jest

Have you ever checked an XML of test reports, and think that could be more info inside it? Today I will show you an way to insert test context inside the XML of jest (you could use any XML) In my article: Test context: A powerfull way to debug our tests Will Drygla ・ Feb 23 #api #automation #codequality #testing I talk about test context, now, we will put this context inside the XML. I use this XML on my pipelines, after test runs. Steps: While test run: 1.1 - Collect test context 1.2 - Save context to a JSON file When tests are finished 2.1 - Read the json file 2.2 - Read the XML file 2.3 - Find failures on XML 2.4 - Find an context the matchs XML failure (I match then based on test name) 2.5 - Write XML with the test context Step 1: afterEach(async () => { const { assertionCalls, numPassingAsserts, currentTestName } = expect.getState(); const failedTest = assertionCalls > numPassingAsserts; if (failedTest) { createContextJsonFile(currentTestName, testContext); } }); Step 2: 2.1: For each JSON on the 'reports' folder, whe call the function that save the data to XML report: jsonFiles.forEach((file) => { const filePath = path.join(folderPath, file); fs.readFile(filePath, 'utf8', (err, data) => { const jsonData = JSON.parse(data); saveJsonToXml(jsonData) 2.4: Find an failure that match our JSON test name and write test context to it: let extraMessage = Context of test ${data.testName}; for (const key of Object.keys(data.context)) { extraMessage = extraMessage.concat(\n${key}: ${JSON.stringify(data.context[key])}); } let fileContent = fs.readFileSync(filePath, 'utf8'); const doc = new DOMParser().parseFromString(fileContent, 'text/xml'); const testCases = doc.getElementsByTagName('testcase'); for (let index = 0; index < testCases.length; index++) { const testCase = testCases[index]; if (testCase.getAttribute('classname') === data.testName) { const failureNode = testCase.getElementsByTagName('failure')[0]; if (failureNode) { failureNode.textContent = failureNode.textContent + extraMessage; 2.5: Write the XML with addition of new content: fileContent = new XMLSerializer().serializeToString(doc); fs.writeFileSync(filePath, fileContent); The result will be an XML like this:

Feb 23, 2025 - 17:54

How to insert test context inside XML of jest

Have you ever checked an XML of test reports, and think that could be more info inside it?

Today I will show you an way to insert test context inside the XML of jest (you could use any XML)

In my article:

Test context: A powerfull way to debug our tests

Will Drygla ・ Feb 23

#api #automation #codequality #testing

I talk about test context, now, we will put this context inside the XML.

I use this XML on my pipelines, after test runs.

Steps:

While test run:
1.1 - Collect test context
1.2 - Save context to a JSON file
When tests are finished
2.1 - Read the json file
2.2 - Read the XML file
2.3 - Find failures on XML
2.4 - Find an context the matchs XML failure (I match then based on test name)
2.5 - Write XML with the test context

Step 1:
afterEach(async () => { const { assertionCalls, numPassingAsserts, currentTestName } = expect.getState(); const failedTest = assertionCalls > numPassingAsserts; if (failedTest) { createContextJsonFile(currentTestName, testContext); } });

Step 2:
2.1: For each JSON on the 'reports' folder, whe call the function that save the data to XML report:
jsonFiles.forEach((file) => { const filePath = path.join(folderPath, file); fs.readFile(filePath, 'utf8', (err, data) => { const jsonData = JSON.parse(data); saveJsonToXml(jsonData)

2.4: Find an failure that match our JSON test name and write test context to it:

2.5: Write the XML with addition of new content:

fileContent = new XMLSerializer().serializeToString(doc); fs.writeFileSync(filePath, fileContent);

The result will be an XML like this: