test.describe.parallel('Agent API', () => {
  let macOs: AgentList;
  let windows: AgentList;
  let debian: AgentList;
  let manager: AgentList;
  let ubuntu: AgentList;
  let astra: AgentList;
  let redOs: AgentList;
  let agentList: AgentList[];

  test.beforeAll(async () => {
    const agentList = await storageHelper.getAgentList(AgentStatus.Active);
    macOs = agentService.filterAgent(agentList, OsName.MacOS, OsVersion.MacOS_13_4)[0];
    windows = agentService.filterAgent(agentList, AgentName.Windows10Pro)[0];
    debian = agentService.filterAgent(agentList, OsName.Debian, OsVersion.Debian_10)[0];
    ubuntu = agentService.filterAgent(agentList, OsName.Ubuntu, OsVersion.Ubuntu_22_04)[0];
    astra = agentService.filterAgent(agentList, OsName.Astra, OsVersion.Astra_2_12)[0];
    redOs = agentService.filterAgent(agentList, OsName.RedOS, OsVersion.RedOS_7_3)[0];
    manager = agentService.filterManager(agentList)[0];
    agentList = await storageHelper.getAgentList(AgentStatus.Active);
  });

  test(`Check rvision scan fail from ${OsName.Windows10Pro} ${OsVersion.Windows10Pro_10_0}`, () => {
    expect(windows.fail >= 0).toBeTruthy();
    expect(agentService.filterAgent(agentList, AgentName.Windows10Pro)[0].fail >= 0).toBeTruthy();
  });

  test(`Check rvision scan invalid from ${OsName.Windows10Pro} ${OsVersion.Windows10Pro_10_0}`, () => {
    expect(windows.invalid >= 0).toBeTruthy();
    expect(agentService.filterAgent(agentList, AgentName.Windows10Pro)[0].invalid >= 0).toBeTruthy();
  });

  test(`Check rvision scan pass from ${OsName.Windows10Pro} ${OsVersion.Windows10Pro_10_0}`, () => {
    expect(windows.pass >= 0).toBeTruthy();
    expect(agentService.filterAgent(agentList, AgentName.Windows10Pro)[0].pass >= 0).toBeTruthy();
  });

  test(`Check rvision scan fail from ${OsName.MacOS} ${OsVersion.MacOS_13_4}`, () => {
    expect(macOs.fail >= 0).toBeTruthy();
    expect(agentService.filterAgent(agentList, OsName.MacOS, OsVersion.MacOS_13_4)[0].fail >= 0).toBeTruthy();
  });

  test(`Check rvision scan invalid from ${OsName.MacOS} ${OsVersion.MacOS_13_4}`, () => {
    expect(macOs.invalid >= 0).toBeTruthy();
    expect(agentService.filterAgent(agentList, OsName.MacOS, OsVersion.MacOS_13_4)[0].invalid >= 0).toBeTruthy();
  });

  test(`Check rvision scan pass from ${OsName.MacOS} ${OsVersion.MacOS_13_4}`, () => {
    expect(macOs.pass >= 0).toBeTruthy();
    expect(agentService.filterAgent(agentList, OsName.MacOS, OsVersion.MacOS_13_4)[0].pass >= 0).toBeTruthy();
  });

  test(`Check rvision scan fail from ${OsName.Debian} ${OsVersion.Debian_10}`, () => {
    expect(debian.fail >= 0).toBeTruthy();
    expect(agentService.filterAgent(agentList, OsName.Debian, OsVersion.Debian_10)[0].fail >= 0).toBeTruthy();
  });

  test(`Check rvision scan invalid from ${OsName.Debian} ${OsVersion.Debian_10}`, () => {
    expect(debian.invalid >= 0).toBeTruthy();
    expect(agentService.filterAgent(agentList, OsName.Debian, OsVersion.Debian_10)[0].invalid >= 0).toBeTruthy();
  });

  test(`Check rvision scan pass from ${OsName.Debian} ${OsVersion.Debian_10}`, () => {
    expect(debian.pass >= 0).toBeTruthy();
    expect(agentService.filterAgent(agentList, OsName.Debian, OsVersion.Debian_10)[0].pass >= 0).toBeTruthy();
  });

  test('Check rvision scan fail from manager', () => {
    expect(manager.fail >= 0).toBeTruthy();
    expect(agentService.filterManager(agentList)[0].fail >= 0).toBeTruthy();
  });

  test('Check rvision scan invalid from manager', () => {
    expect(manager.invalid >= 0).toBeTruthy();
    expect(agentService.filterManager(agentList)[0].invalid >= 0).toBeTruthy();
  });

  test('Check rvision scan pass from manager', () => {
    expect(manager.pass >= 0).toBeTruthy();
    expect(agentService.filterManager(agentList)[0].pass >= 0).toBeTruthy();
  });

  test(`Check rvision scan fail from ${OsName.Ubuntu} ${OsVersion.Ubuntu_22_04}`, () => {
    expect(ubuntu.fail >= 0).toBeTruthy();
    expect(agentService.filterAgent(agentList, OsName.Ubuntu, OsVersion.Ubuntu_22_04)[0].fail >= 0).toBeTruthy();
  });

  test(`Check rvision scan invalid from ${OsName.Ubuntu} ${OsVersion.Ubuntu_22_04}`, () => {
    expect(ubuntu.invalid >= 0).toBeTruthy();
    expect(agentService.filterAgent(agentList, OsName.Ubuntu, OsVersion.Ubuntu_22_04)[0].invalid >= 0).toBeTruthy();
  });

  test(`Check rvision scan pass from ${OsName.Ubuntu} ${OsVersion.Ubuntu_22_04}`, () => {
    expect(ubuntu.pass >= 0).toBeTruthy();
    expect(agentService.filterAgent(agentList, OsName.Ubuntu, OsVersion.Ubuntu_22_04)[0].pass >= 0).toBeTruthy();
  });

  test(`Check rvision scan fail from ${OsName.Astra} ${OsVersion.Astra_2_12}`, () => {
    expect(astra.fail >= 0).toBeTruthy();
    expect(agentService.filterAgent(agentList, OsName.Astra, OsVersion.Astra_2_12)[0].fail >= 0).toBeTruthy();
  });

  test(`Check rvision scan invalid from ${OsName.Astra} ${OsVersion.Astra_2_12}`, () => {
    expect(astra.invalid >= 0).toBeTruthy();
    expect(agentService.filterAgent(agentList, OsName.Astra, OsVersion.Astra_2_12)[0].invalid >= 0).toBeTruthy();
  });

  test(`Check rvision scan pass from ${OsName.Astra} ${OsVersion.Astra_2_12}`, () => {
    expect(astra.pass >= 0).toBeTruthy();
    expect(agentService.filterAgent(agentList, OsName.Astra, OsVersion.Astra_2_12)[0].pass >= 0).toBeTruthy();
  });

  test(`Check rvision scan fail from ${OsName.RedOS} ${OsVersion.RedOS_7_3}`, () => {
    expect(redOs.fail >= 0).toBeTruthy();
    expect(agentService.filterAgent(agentList, OsName.RedOS, OsVersion.RedOS_7_3)[0].fail >= 0).toBeTruthy();
  });

  test(`Check rvision scan invalid from ${OsName.RedOS} ${OsVersion.RedOS_7_3}`, () => {
    expect(redOs.invalid >= 0).toBeTruthy();
    expect(agentService.filterAgent(agentList, OsName.RedOS, OsVersion.RedOS_7_3)[0].invalid >= 0).toBeTruthy();
  });

  test(`Check rvision scan pass from ${OsName.RedOS} ${OsVersion.RedOS_7_3}`, () => {
    expect(redOs.pass >= 0).toBeTruthy();
    expect(agentService.filterAgent(agentList, OsName.RedOS, OsVersion.RedOS_7_3)[0].pass >= 0).toBeTruthy();
  });
});


Объясни что здесь происходит и что такое 
test.describe.parallel