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TestComplete provides the ability to interact with browser content using Page and Eval methods. You can use this to fetch the coverage object.
Try the following JavaScript code in TestComplete:
function getCoverageData() {
var page = Sys.Browser("chrome").Page("*");
// Execute JavaScript in the browser context
var coverageData = page.Eval("JSON.stringify(window.__coverage__)");
if (coverageData) {
Log.Message("Coverage Data Retrieved");
Log.Message(coverageData); // Display the coverage JSON in the TestComplete log
// Save to a file
var fso = new ActiveXObject("Scripting.FileSystemObject");
var file = fso.CreateTextFile("C:\\temp\\coverage.json", true);
file.Write(coverageData);
file.Close();
Log.Message("Coverage data saved to C:\\temp\\coverage.json");
} else {
Log.Warning("No coverage data found. Ensure Istanbul is properly instrumented.");
}
}
- Access the Browser Session
- Sys.Browser("chrome").Page("*") gets the active page.
- Extract window.__coverage__
- Using Eval("JSON.stringify(window.__coverage__)") runs JavaScript in the browser.
- Log & Save Coverage Data
- Displays the JSON data in the TestComplete log.
- Saves it to C:\temp\coverage.json for further analysis.
- Verify that your app is properly instrumented and window.__coverage__ is available.
- If using a different browser, replace "chrome" with "firefox" or "edge".
- Analyze the saved coverage.json using Istanbul's reporting tools:
npx nyc report --reporter=html
Then open coverage/index.html in your browser.