Support calling remove callback multiple times

lib/tmp.js

@@ -376,6 +376,8 @@ function _prepareRemoveCallback(removeFunction, fileOrDirName, sync, cleanupCall
       } else {
         return removeFunction(fileOrDirName, next || function() {});
       }
+    } else if (!sync) {
+      next();
     }
   };
 }

test/inband-standard.js

@@ -92,6 +92,20 @@ function inbandStandardTests(testOpts, opts, isFile, beforeHook, sync = false) {
           throw err;
         }
       }.bind(topic));
+
+      it('should support removeCallback called multiple times', function () {
+        try {
+          this.topic.removeCallback();
+        } catch (err) {
+          // important: remove file or dir unconditionally
+          try {
+            fs.rmSync(this.topic.name, { recursive: true });
+          } catch (_ignored) {
+            // ignore
+          }
+          throw err;
+        }
+      }.bind(topic));
     } else {
       it('should have a working removeCallback', function (done) {
         const self = this;
@@ -106,6 +120,20 @@ function inbandStandardTests(testOpts, opts, isFile, beforeHook, sync = false) {
           done();
         });
       }.bind(topic));
+
+      it('should support removeCallback called multiple times', function (done) {
+        const self = this;
+        this.topic.removeCallback(function (err) {
+          if (err) return done(err);
+          try {
+            assertions.assertDoesNotExist(self.topic.name);
+          } catch (err) {
+            fs.rmSync(self.topic.name, { recursive: true });
+            return done(err);
+          }
+          done();
+        });
+      }.bind(topic));
     }
   };
 }