Add dart-json snapshot test

__tests__/dart-json.test.ts

@@ -0,0 +1,26 @@
+import * as fs from 'fs'
+import * as path from 'path'
+
+import {parseDartJson} from '../src/parsers/dart-json/dart-json-parser'
+import {ParseOptions} from '../src/parsers/test-parser'
+
+const xmlFixture = fs.readFileSync(path.join(__dirname, 'fixtures', 'dart-json.json'), {encoding: 'utf8'})
+const outputPath = __dirname + '/__outputs__/dart-json.md'
+
+describe('dart-json tests', () => {
+  it('matches report snapshot', async () => {
+    const opts: ParseOptions = {
+      name: 'Dart tests',
+      annotations: true,
+      trackedFiles: ['test/main_test.dart', 'test/second_test.dart'],
+      workDir: 'C:/Users/Michal/Workspace/dorny/test-check/reports/dart/'
+    }
+
+    const result = await parseDartJson(xmlFixture, opts)
+    fs.mkdirSync(path.dirname(outputPath), {recursive: true})
+    fs.writeFileSync(outputPath, result?.output?.summary ?? '')
+
+    expect(result.success).toBeFalsy()
+    expect(result?.output).toMatchSnapshot()
+  })
+})