Function runCmapTestSuite

test/tools/cmap_spec_runner.ts:458–572

(
  tests: CmapTest[],
  options?: { testsToSkip?: SkipDescription[]; injectPoolStats?: boolean }
)

};

export function runCmapTestSuite(
  tests: CmapTest[],
  options?: { testsToSkip?: SkipDescription[]; injectPoolStats?: boolean }
) {
  for (const test of tests) {
    describe(test.name, function () {
      let hostAddress: HostAddress,
        server: Server,
        threadContext: ThreadContext,
        client: MongoClient;

      beforeEach(async function () {
        let utilClient: MongoClient;

        const skipDescription = options?.testsToSkip?.find(
          ({ description }) => description === test.description
        );
        if (skipDescription) {
          const alwaysSkip = skipDescription.skipIfCondition === 'always';
          const matchesLoadBalanceSkip =
            skipDescription.skipIfCondition === 'loadBalanced' && this.configuration.isLoadBalanced;

          if (alwaysSkip || matchesLoadBalanceSkip) {
            this.currentTest.skipReason = skipDescription.skipReason;
            this.skip();
          }
        }

        if (this.configuration.isLoadBalanced) {
          // The util client can always point at the single mongos LB frontend.
          utilClient = this.configuration.newClient(this.configuration.singleMongosLoadBalancerUri);
        } else {
          utilClient = this.configuration.newClient();
        }

        await utilClient.connect();

        const allRequirements = test.runOn || [];

        const someRequirementMet =
          !allRequirements.length ||
          (await isAnyRequirementSatisfied(this.currentTest.ctx, allRequirements, utilClient));

        if (!someRequirementMet) {
          await utilClient.close();
          this.skip();
          // NOTE: the rest of the code below won't execute after the skip is invoked
        }

        try {
          const serverDescriptionMap = utilClient.topology?.s.description.servers;
          const hosts = shuffle(serverDescriptionMap.keys());
          const selectedHostUri = hosts[0];
          hostAddress = serverDescriptionMap.get(selectedHostUri).hostAddress;

          const clientOptions: Pick<MongoClientOptions, 'appName'> = {};
          if (test.poolOptions?.appName) {
            clientOptions.appName = test.poolOptions.appName;