1 files changed, 40 insertions, 0 deletions
diff --git a/jstests/noPassthrough/shell_bson_unordered_fields_compare.js b/jstests/noPassthrough/shell_bson_unordered_fields_compare.js
new file mode 100644
index 00000000000..9f9615525e2
--- /dev/null
+++ b/jstests/noPassthrough/shell_bson_unordered_fields_compare.js
@@ -0,0 +1,40 @@
+/**
+ * Tests the bsonUnorderedFieldsCompare function.
+ */
+(function() {
+"use strict";
+
+const tests = [];
+
+tests.push(function compareOrderedFieldsSameDoc() {
+    const doc = {_id: 1, field1: 1, field2: "a"};
+    assert.eq(0, bsonUnorderedFieldsCompare(doc, doc), "identical docs were not equal");
+});
+
+tests.push(function compareUnorderedFieldsSameDoc() {
+    const doc1 = {_id: 1, field1: 1, field2: "a"};
+    const doc2 = {_id: 1, field2: "a", field1: 1};
+    assert.eq(0,
+              bsonUnorderedFieldsCompare(doc1, doc2),
+              "docs with same fields but out of order were not equal");
+});
+
+tests.push(function compareOrderedFieldsDifferentDoc() {
+    const doc1 = {_id: 1, field1: 1, field2: "a"};
+    const doc2 = {_id: 1, field1: 1, field2: "b"};
+    assert.neq(0, bsonUnorderedFieldsCompare(doc1, doc2), "docs with different fields were equal");
+});
+
+tests.push(function compareUnorderedFieldsDifferentDoc() {
+    const doc1 = {_id: 1, field1: 1, field2: "a"};
+    const doc2 = {_id: 1, field2: "b", field1: 1};
+    assert.neq(0,
+               bsonUnorderedFieldsCompare(doc1, doc2),
+               "docs with different fields with different field orders were equal");
+});
+
+// Run each test.
+tests.forEach(test => {
+    test();
+});
+})();