From 52f5ef4b3f38bcc3fa6d796cccb19f17697d02bc Mon Sep 17 00:00:00 2001
From: Daria Pardue <81593090+dariakp@users.noreply.github.com>
Date: Wed, 12 May 2021 09:49:43 -0400
Subject: [PATCH] test: lowercase returnDocument for spec tests

---
 test/functional/crud_spec.test.js        | 3 +++
 test/functional/retryable_writes.test.js | 6 ++++--
 test/functional/spec-runner/index.js     | 4 ++++
 3 files changed, 11 insertions(+), 2 deletions(-)

diff --git a/test/functional/crud_spec.test.js b/test/functional/crud_spec.test.js
index 8991dbfa37f..14c4da4244a 100644
--- a/test/functional/crud_spec.test.js
+++ b/test/functional/crud_spec.test.js
@@ -320,6 +320,9 @@ describe('CRUD spec', function () {
     const filter = args.filter;
     const second = args.update || args.replacement;
     const options = Object.assign({}, args);
+    if (options.returnDocument) {
+      options.returnDocument = options.returnDocument.toLowerCase();
+    }
 
     delete options.filter;
     delete options.update;
diff --git a/test/functional/retryable_writes.test.js b/test/functional/retryable_writes.test.js
index 54006fe4460..1c79a06fcd6 100644
--- a/test/functional/retryable_writes.test.js
+++ b/test/functional/retryable_writes.test.js
@@ -136,8 +136,10 @@ function generateArguments(test) {
     Object.keys(test.operation.arguments).forEach(arg => {
       if (arg === 'requests') {
         args.push(test.operation.arguments[arg].map(convertBulkWriteOperation));
-      } else if (arg === 'upsert' || arg === 'returnDocument') {
-        options[arg] = test.operation.arguments[arg];
+      } else if (arg === 'upsert') {
+        options.upsert = test.operation.arguments[arg];
+      } else if (arg === 'returnDocument') {
+        options.returnDocument = test.operation.arguments[arg].toLowerCase();
       } else {
         args.push(test.operation.arguments[arg]);
       }
diff --git a/test/functional/spec-runner/index.js b/test/functional/spec-runner/index.js
index 499bc9e6104..5a493c66819 100644
--- a/test/functional/spec-runner/index.js
+++ b/test/functional/spec-runner/index.js
@@ -680,6 +680,10 @@ function testOperation(operation, obj, context, options) {
             return;
           }
 
+          if (key === 'returnDocument') {
+            opOptions.returnDocument = operation.arguments[key].toLowerCase();
+          }
+
           if (key === 'options') {
             Object.assign(opOptions, operation.arguments[key]);
             if (opOptions.readPreference) {