fix type errors in core tests

Author: lobsterkatie

packages/core/test/lib/base.test.ts

@@ -69,7 +69,7 @@ describe('BaseClient', () => {
 
       const options = { dsn: PUBLIC_DSN };
       const client = new TestClient(options, setupTestTransport(options).transport);
-      expect(dsnToString(client.getDsn())).toBe(PUBLIC_DSN);
+      expect(dsnToString(client.getDsn()!)).toBe(PUBLIC_DSN);
     });
 
     test('allows missing Dsn', () => {

packages/core/test/mocks/client.ts

@@ -79,7 +79,7 @@ export function setupTestTransport(options: TestOptions): { transport: Transport
   const transportOptions = options.transportOptions ? options.transportOptions : { dsn: options.dsn };
 
   if (options.transport) {
-    return { transport: new this._options.transport(transportOptions) };
+    return { transport: new options.transport(transportOptions) };
   }
 
   return noop;