test: skip child_process test in Deno, explicitly exit when tests are…

… done re: #9056

package.json

@@ -19,7 +19,7 @@
   ],
   "license": "MIT",
   "dependencies": {
-    "bson": "^4.6.5",
+    "bson": "^4.7.0",
     "kareem": "2.4.1",
     "mongodb": "4.9.1",
     "mpath": "0.9.0",

test/deno.js

@@ -30,4 +30,5 @@ for (const file of files) {
 
 mocha.run(function(failures) {
   process.exitCode = failures ? 1 : 0;  // exit with non-zero status if there were failures
+  process.exit(process.exitCode);
 });

test/errors.validation.test.js

@@ -234,6 +234,11 @@ describe('ValidationError', function() {
 
   describe('when user code defines a r/o Error#toJSON', function() {
     it('should not fail', function(done) {
+      if (typeof Deno !== 'undefined') {
+        // Deno doesn't support child_process.fork
+        return this.skip();
+      }
+
       const err = [];
       const child = require('child_process')
         .fork('./test/isolated/project-has-error.toJSON.js', ['--no-warnings'], { silent: true });

test/query.test.js

@@ -3478,7 +3478,6 @@ describe('Query', function() {
     const userSchema = Schema({ token: String });
     const User = db.model('Test', userSchema);
 
-
     const original = await User.create({ token: 'rightToken' });
     let doc = await User.findOne({ token: 'wrongToken', _bsontype: 'a' });
     assert.ok(!doc);