[BUG] Unit Tests failing on Amazon Linux 2 docker image due to OS-level or Docker-related wording difference

[zhongnansu]

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Describe the bug Unit Tests failing on Amazon Linux 2 docker image. IMO, unit tests should not be coupled with OS-level wording difference. The 3 failed unit tests are checking for text containing "permission denied", which exists on Debian-based OS. But AL2 is CentOS based, and it throws out "UV_EACCES" instead.

A worker process has failed to exit gracefully and has been force exited. This is likely caused by tests leaking due to improper teardown. Try running with --detectOpenHandles to find leaks. Active timers can also cause this, ensure that .unref() was called on them.
Summary of all failing tests
FAIL src/core/server/plugins/discovery/plugins_discovery.test.ts (23.132 s)
  ● plugins discovery system › return errors when the plugin search path is not accessible

    expect(received).toEqual(expected) // deep equality

    Expected: ArrayContaining [StringContaining "Error: EACCES, permission denied '/home/jenkins/workspace/OSD-testing_opensearch-3.1.0-dev/OpenSearch-Dashboards/src/plugins"]
    Received: ["Error: EACCES, UV_EACCES '/home/jenkins/workspace/OSD-testing_opensearch-3.1.0-dev/OpenSearch-Dashboards/src/plugins' (invalid-search-path, /home/jenkins/workspace/OSD-testing_opensearch-3.1.0-dev/OpenSearch-Dashboards/src/plugins)", "Error: ENOENT, UV_ENOENT '/home/jenkins/workspace/OSD-testing_opensearch-3.1.0-dev/OpenSearch-Dashboards/plugins' (invalid-search-path, /home/jenkins/workspace/OSD-testing_opensearch-3.1.0-dev/OpenSearch-Dashboards/plugins)", "Error: ENOENT, UV_ENOENT '/home/jenkins/workspace/OSD-testing_opensearch-3.1.0-dev/opensearch-dashboards-extra' (invalid-search-path, /home/jenkins/workspace/OSD-testing_opensearch-3.1.0-dev/opensearch-dashboards-extra)"]

      238 |
      239 |     const srcPluginsPath = resolve(PROCESS_WORKING_DIR, 'src', 'plugins');
    > 240 |     expect(errors).toEqual(
          |                    ^
      241 |       expect.arrayContaining([
      242 |         expect.stringContaining(`Error: EACCES, permission denied '${standardize(srcPluginsPath)}`),
      243 |       ])

      at Object.<anonymous> (src/core/server/plugins/discovery/plugins_discovery.test.ts:240:20)

  ● plugins discovery system › return an error when the manifest file is not accessible

    expect(received).toEqual(expected) // deep equality

    Expected: ArrayContaining [StringContaining "Error: EACCES, permission denied '/home/jenkins/workspace/OSD-testing_opensearch-3.1.0-dev/OpenSearch-Dashboards/src/plugins/plugin_a/opensearch_dashboards.json"]
    Received: ["Error: ENOENT, UV_ENOENT '/home/jenkins/workspace/OSD-testing_opensearch-3.1.0-dev/OpenSearch-Dashboards/plugins' (invalid-search-path, /home/jenkins/workspace/OSD-testing_opensearch-3.1.0-dev/OpenSearch-Dashboards/plugins)", "Error: ENOENT, UV_ENOENT '/home/jenkins/workspace/OSD-testing_opensearch-3.1.0-dev/opensearch-dashboards-extra' (invalid-search-path, /home/jenkins/workspace/OSD-testing_opensearch-3.1.0-dev/opensearch-dashboards-extra)", "Error: EACCES, UV_EACCES '/home/jenkins/workspace/OSD-testing_opensearch-3.1.0-dev/OpenSearch-Dashboards/src/plugins/plugin_a/opensearch_dashboards.json' (missing-manifest, /home/jenkins/workspace/OSD-testing_opensearch-3.1.0-dev/OpenSearch-Dashboards/src/plugins/plugin_a/opensearch_dashboards.json)"]

      273 |
      274 |     const errorPath = manifestPath('plugin_a');
    > 275 |     expect(errors).toEqual(
          |                    ^
      276 |       expect.arrayContaining([
      277 |         expect.stringContaining(`Error: EACCES, permission denied '${standardize(errorPath)}`),
      278 |       ])

      at Object.<anonymous> (src/core/server/plugins/discovery/plugins_discovery.test.ts:275:20)

FAIL src/core/server/metrics/collectors/cgroup.test.ts
  ● OsCgroupMetricsCollector › returns empty object and logs error on an EACCES error

    expect(jest.fn()).toHaveBeenCalledWith(...expected)

    Expected: "cgroup metrics could not be read due to error: [Error: EACCES, permission denied '/sys/fs/cgroup/cpuacct/groupname/cpuacct.usage']"
    Received: "cgroup metrics could not be read due to error: [Error: EACCES, UV_EACCES '/sys/fs/cgroup/cpuacct/groupname/cpuacct.usage']"

    Number of calls: 1

      148 |     const collector = new OsCgroupMetricsCollector({ logger });
      149 |     expect(await collector.collect()).toEqual({});
    > 150 |     expect(logger.error).toHaveBeenCalledWith(
          |                          ^
      151 |       `cgroup metrics could not be read due to error: [Error: EACCES, permission denied '${usagePath}']`
      152 |     );
      153 |   });

      at Object.<anonymous> (src/core/server/metrics/collectors/cgroup.test.ts:150:26)

To Reproduce Steps to reproduce the behavior:

1. Use AL2 docker image
2. run yarn test:jest

Expected behavior A clear and concise description of what you expected to happen.