feat: support pytest JUnit XML format

__tests__/fixtures/external/pytest/pytest-single-case.xml

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="utf-8"?>
+<testsuites>
+    <testsuite name="pytest" errors="0" failures="0" skipped="0" tests="1" time="0.178"
+               timestamp="2023-03-08T11:47:09.377238" hostname="0e634555ad5c">
+        <testcase classname="product_changes.tests.first_test.MyTestCase" name="test_something" time="0.133"/>
+    </testsuite>
+</testsuites>

__tests__/pytest-junit.test.ts

@@ -0,0 +1,24 @@
+import * as fs from 'fs'
+import * as path from 'path'
+
+import { JestJunitParser } from '../src/parsers/jest-junit/jest-junit-parser'
+import { ParseOptions } from '../src/test-parser'
+import { normalizeFilePath } from '../src/utils/path-utils'
+
+describe('pytest-junit tests', () => {
+  it('test with one successful test', async () => {
+    const fixturePath = path.join(__dirname, 'fixtures', 'external', 'pytest', 'pytest-single-case.xml')
+    const filePath = normalizeFilePath(path.relative(__dirname, fixturePath))
+    const fileContent = fs.readFileSync(fixturePath, { encoding: 'utf8' })
+
+    const opts: ParseOptions = {
+      parseErrors: true,
+      trackedFiles: []
+    }
+
+    const parser = new JestJunitParser(opts)
+    const result = await parser.parse(filePath, fileContent)
+    expect(result.tests).toBe(1)
+    expect(result.result).toBe('success')
+  })
+})

src/parsers/jest-junit/jest-junit-parser.ts

@@ -33,7 +33,7 @@ export class JestJunitParser implements TestParser {
   }
 
   private getTestRunResult(path: string, junit: JunitReport): TestRunResult {
-    const suites =
+    const suites: TestSuiteResult[] =
       junit.testsuites.testsuite === undefined
         ? []
         : junit.testsuites.testsuite.map(ts => {
@@ -43,7 +43,11 @@ export class JestJunitParser implements TestParser {
             return sr
           })
 
-    const time = parseFloat(junit.testsuites.$.time) * 1000
+    const time =
+      junit.testsuites.$ === undefined
+        ? suites.reduce((sum, suite) => sum + suite.time, 0)
+        : parseFloat(junit.testsuites.$.time) * 1000
+
     return new TestRunResult(path, suites, time)
   }
 

src/parsers/jest-junit/jest-junit-types.ts

@@ -3,7 +3,7 @@ export interface JunitReport {
 }
 
 export interface TestSuites {
-  $: {
+  $?: {
     time: string
   }
   testsuite?: TestSuite[]