✨ (utils.test.ts): add test for parsing cobertura project with a single file to enhance test coverage

📝 (utils.test.ts.snap): update snapshot to include new test case for single file coverage
📝 (cobertura-project-single-file.xml): add fixture for cobertura project with a single file to support new test
♻️ (utils.ts): refactor parseXML function to include 'coverage.project.file' in the array for improved parsing logic

Author: tm1000

__tests__/__snapshots__/utils.test.ts.snap

@@ -1,4 +1,4 @@
-// Jest Snapshot v1, https://goo.gl/fbAQLP
+// Jest Snapshot v1, https://jestjs.io/docs/snapshot-testing
 
 exports[`parse cobertura file with empty classes 1`] = `
 {
@@ -48,6 +48,21 @@ exports[`parse cobertura file with empty packages 1`] = `
 }
 `;
 
+exports[`parse cobertura project with single file 1`] = `
+{
+  "basePath": "/foo.php",
+  "coverage": 2.65,
+  "files": {
+    "83e0f134b069618626405250ccb3fd4adcc0fdfc7714b387d4aa4f30862f75a7": {
+      "absolute": "/foo.php",
+      "coverage": 0,
+      "relative": "/foo.php",
+    },
+  },
+  "timestamp": 1752615692,
+}
+`;
+
 exports[`parse empty cobertura file 1`] = `
 {
   "basePath": "",

__tests__/fixtures/cobertura-project-single-file.xml

@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<coverage generated="1752615692">
+  <project timestamp="1752615692">
+    <file name="/foo.php">
+      <metrics loc="17" ncloc="17" classes="0" methods="0" coveredmethods="0" conditionals="0" coveredconditionals="0" statements="0" coveredstatements="0" elements="0" coveredelements="0"/>
+    </file>
+    <metrics files="130" loc="11080" ncloc="9188" classes="122" methods="224" coveredmethods="13" conditionals="0" coveredconditionals="0" statements="4039" coveredstatements="100" elements="4263" coveredelements="113"/>
+  </project>
+</coverage>

__tests__/utils.test.ts

@@ -174,6 +174,11 @@ test('parse empty cobertura file', async () => {
   expect(ret).toMatchSnapshot()
 })
 
+test('parse cobertura project with single file', async () => {
+  const ret = await parseCoverage(__dirname + '/fixtures/cobertura-project-single-file.xml')
+  expect(ret).toMatchSnapshot()
+})
+
 test('parse cobertura file with empty packages', async () => {
   const ret = await parseCoverage(__dirname + '/fixtures/cobertura-empty-packages.xml')
   expect(ret).toMatchSnapshot()

dist/index.js

@@ -50,6 +50,7 @@ export async function parseXML<T>(filename: string): Promise<T | null> {
         return false;
       }
       return inArray(jpath, [
+        'coverage.project.file',
         'coverage.project.package',
         'coverage.project.package.file',
         'coverage.packages.package',