fix: exportFileName checks in tests

Author: CountRedClaw

src/builder.ts

@@ -816,6 +816,8 @@ export class PackageVersionBuilder implements IPackageVersionBuilder {
     this.packageChangesCache.clear()
     this.operations.clear()
     this.documents.clear()
+    this.exportDocuments = []
+    this.exportFileName = undefined
     this.comparisons = []
 
     this.notifications = []

test/export.test.ts

@@ -157,7 +157,7 @@ describe('Export test', () => {
       buildType: BUILD_TYPE.EXPORT_VERSION,
       format: 'json',
     })
-    expect(result.exportFileName).toEqual('export_single-document-version.zip')
+    expect(result.exportFileName).toEqual('export_single-document-version_1.json')
     // todo check zip content
   })
 
@@ -167,7 +167,7 @@ describe('Export test', () => {
       buildType: BUILD_TYPE.EXPORT_VERSION,
       format: 'yaml',
     })
-    expect(result.exportFileName).toEqual('export_single-document-version.zip')
+    expect(result.exportFileName).toEqual('export_single-document-version_1.yaml')
     // todo check zip content
   })