full coverage

local/playwright-tooling/src/collectCoverage.js

@@ -0,0 +1,22 @@
+const fs = require('fs');
+const { basename, dirname, join } = require('path');
+const v8toIstanbul = require('v8-to-istanbul');
+const { tmpCoverageDirectory } = require('@local/config/playwright.coverage');
+
+module.exports = async (coverageOutputDir, sourceDir, coverage, testfile) => {
+  // eslint-disable-next-line no-restricted-syntax
+  for (const entry of coverage) {
+    process.chdir(sourceDir);
+    const converter = v8toIstanbul('', 0, { source: entry.source });
+    // eslint-disable-next-line no-await-in-loop
+    await converter.load();
+    converter.applyCoverage(entry.functions);
+
+    const coveragePath = join(
+      coverageOutputDir,
+      `${tmpCoverageDirectory}/${basename(dirname(testfile))}_${Date.now()}.json`
+    );
+    fs.mkdirSync(dirname(coveragePath), { recursive: true });
+    fs.writeFileSync(coveragePath, JSON.stringify(converter.toIstanbul()));
+  }
+};