@firestore-emulator/jest/dist/environment/node.mjs

This package contains a [`Jest`](https://jestjs.io/) environment for setup `@firestore-emulator/server`.

// src/environment/node.ts
import { FirestoreServer } from "@firestore-emulator/server";
import { findFreePorts } from "find-free-ports";
import { TestEnvironment } from "jest-environment-node";
var FirestoreEmulatorEnvironment = class extends TestEnvironment {
  server;
  constructor(config, context) {
    super(config, context);
    this.server = new FirestoreServer();
  }
  async setup() {
    await super.setup();
    let tryCount = 0;
    while (tryCount < 50) {
      const [port] = await findFreePorts(1);
      if (!port) throw new Error("Could not find a free port");
      try {
        await this.server.start(port);
        this.global.emulator = {
          host: `0.0.0.0:${port}`,
          port,
          state: this.server.state
        };
        return;
      } catch (err) {
        if (!(err instanceof Error)) throw err;
        if (!err.message.startsWith("No address added out of total")) throw err;
      }
      tryCount++;
    }
    throw new Error("Could not find a free port");
  }
  async teardown() {
    this.server.stop();
    await super.teardown();
  }
};
export {
  FirestoreEmulatorEnvironment as default
};
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