fix: handle-single-packages-in-cobertura-files

Author: craigbroadman

src/reports/cobertura/parser/index.ts

@@ -8,17 +8,19 @@ import {
 import {Cobertura, Package} from '../types'
 
 export default async function parse(cobertura: Cobertura): Promise<Coverage> {
-  const fileList = cobertura.coverage.packages.package.map(
+  const packages = cobertura.coverage.packages.package
+  const packageArray = Array.isArray(packages) ? packages : [packages]
+
+  const fileList = packageArray.map(
     ({'@_name': name}) => {
       return name
     }
   )
-
   const basePath = `${determineCommonBasePath(fileList)}`
   const r = new RegExp(`^${escapeRegExp(`${basePath}/`)}`)
 
   return {
-    files: cobertura.coverage.packages.package.reduce(
+    files: packageArray.reduce(
       (previous, {'@_name': name, '@_line-rate': lineRate}: Package) => ({
         ...previous,
         [createHash(name.replace(r, ''))]: {