Adding back the callback assert

Author: schmidt-sebastian

packages/firestore/test/unit/specs/spec_builder.ts

@@ -464,7 +464,7 @@ export class SpecBuilder {
   /**
    * Acks a write with a version and optional additional options.
    *
-   * expectUserCallback defaults to true if options are omitted.
+   * expectUserCallback defaults to true if omitted.
    */
   writeAcks(
     doc: string,
@@ -478,7 +478,7 @@ export class SpecBuilder {
       writeAck: { version, keepInQueue: !!options.keepInQueue }
     };
 
-    if (options.expectUserCallback) {
+    if (options.expectUserCallback !== false) {
       return this.expectUserCallbacks({ acknowledged: [doc] });
     } else {
       return this;
@@ -488,7 +488,7 @@ export class SpecBuilder {
   /**
    * Fails a write with an error and optional additional options.
    *
-   * expectUserCallback defaults to true if options are omitted.
+   * expectUserCallback defaults to true if omitted.
    */
   failWrite(
     doc: string,
@@ -508,7 +508,7 @@ export class SpecBuilder {
 
     this.currentStep = { failWrite: { error, keepInQueue } };
 
-    if (options.expectUserCallback) {
+    if (options.expectUserCallback !== false) {
       return this.expectUserCallbacks({ rejected: [doc] });
     } else {
       return this;