TypeScriptBrowserPetstoreClientTests failure in CircleCI node 3

[wing328]

CircleCI tests (node 3) failed more often these days:

Running tests...

Running 2 test files...


dist/isomorphic-fetch.test.js:

 ❌ Isomorphic Fetch > GET-Request
      Error: Timeout of 2000ms exceeded. For async tests and hooks, ensure "done()" is called; if returning a Promise, ensure it resolves.
        at createTimeoutError (node_modules/@web/test-runner-mocha/dist/autorun.js:1:243195)
        at Ty.Gg._timeoutError (node_modules/@web/test-runner-mocha/dist/autorun.js:1:259145)
        at node_modules/@web/test-runner-mocha/dist/autorun.js:1:257217

 ❌ Isomorphic Fetch > POST-Request
      Error: Timeout of 2000ms exceeded. For async tests and hooks, ensure "done()" is called; if returning a Promise, ensure it resolves.
        at createTimeoutError (node_modules/@web/test-runner-mocha/dist/autorun.js:1:243195)
        at Ty.Gg._timeoutError (node_modules/@web/test-runner-mocha/dist/autorun.js:1:259145)
        at node_modules/@web/test-runner-mocha/dist/autorun.js:1:257217

Chromium: |██████████████████████████████| 2/2 test files | 10 passed, 2 failed

Finished running tests in 5s with 2 failed tests.


[ERROR] Failed to execute goal org.codehaus.mojo:exec-maven-plugin:1.2.1:exec (npm-test) on project TypeScriptBrowserPetstoreClientTests: Command execution failed.: Process exited with an error: 1 (Exit value: 1) -> [Help 1]
[ERROR] 
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR] 
[ERROR] For more information about the errors and possible solutions, please read the following articles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/MojoExecutionException

e.g. https://app.circleci.com/pipelines/github/OpenAPITools/openapi-generator/23117/workflows/8a4b3cbe-5ab0-4f3f-8351-f40621cd7e82/jobs/65428

maybe httpbin.org is throttling connections from the CI? not sure but we should switch to Echo API server instead: https://github.com/OpenAPITools/openapi-generator/wiki/Integration-Tests#echo-server

cc @TiFu (2017/07) @taxpon (2017/07) @sebastianhaas (2017/07) @kenisteward (2017/07) @Vrolijkx (2017/09) @macjohnny (2018/01) @topce (2018/10) @akehir (2019/07) @petejohansonxo (2019/11) @amakhrov (2020/02) @davidgamero (2022/03) @mkusaka (2022/04)

also cc @TiFu - the author of the typescript client generator