switch to using global config's rootDir field

Author: ajwootto

src/environment.ts

@@ -21,7 +21,7 @@ module.exports = class MongoEnvironment extends TestEnvironment {
   globalConfigPath: string;
   constructor(config: JestEnvironmentConfig, context: EnvironmentContext) {
     super(config, context);
-    this.globalConfigPath = pathJoin(config.projectConfig.rootDir, 'globalConfig.json');
+    this.globalConfigPath = pathJoin(config.globalConfig.rootDir, 'globalConfig.json');
   }
 
   async setup() {

src/setup.ts

@@ -22,8 +22,7 @@ const mongo: Mongo = isReplSet
   : new MongoMemoryServer(mongoMemoryServerOptions);
 
 module.exports = async (config: JestEnvironmentConfig['globalConfig']) => {
-  const projects = config.projects.length ? config.projects : [config.rootDir];
-  const globalConfigPaths = projects.map(project => join(project, 'globalConfig.json'));
+  const globalConfigPath = join(config.rootDir, 'globalConfig.json');
 
   const options = getMongodbMemoryOptions();
   const mongoConfig: {mongoUri?: string; mongoDBName?: string} = {};
@@ -49,9 +48,6 @@ module.exports = async (config: JestEnvironmentConfig['globalConfig']) => {
   mongoConfig.mongoDBName = options.instance.dbName;
 
   // Write global config to disk because all tests run in different contexts.
-  // write one for each registered "project"
-  for (const path of globalConfigPaths) {
-    writeFileSync(path, JSON.stringify(mongoConfig));
-  }
+  writeFileSync(globalConfigPath, JSON.stringify(mongoConfig));
   debug('Config is written');
 };

src/teardown.ts

@@ -5,22 +5,18 @@ import type {JestEnvironmentConfig} from '@jest/environment';
 const debug = require('debug')('jest-mongodb:teardown');
 
 module.exports = async function (config: JestEnvironmentConfig['globalConfig']) {
-  const projects = config.projects.length ? config.projects : [config.rootDir];
-  const globalConfigPaths = projects.map(project => join(project, 'globalConfig.json'));
+  const globalConfigPath = join(config.rootDir, 'globalConfig.json');
 
   debug('Teardown mongod');
   if (global.__MONGOD__) {
     await global.__MONGOD__.stop();
   }
+  unlink(globalConfigPath, err => {
+    if (err) {
+      debug('Config could not be deleted');
 
-  for (const path of globalConfigPaths) {
-    unlink(path, err => {
-      if (err) {
-        debug('Config could not be deleted');
-
-        return;
-      }
-      debug('Config is deleted');
-    });
-  }
+      return;
+    }
+    debug('Config is deleted');
+  });
 };