Summary
In order to vary the interaction with the database in the default read operation defined in the cppsuite in the database_operation class, we could randomise which key a thread reads.

Currently, each thread positions a cursor at the start of the collection and reads it, key after key, until the transaction is completed and resets the cursor.

Instead, we could position the cursor on a random key and start reading.

Motivation

• Is this issue urgent?
  It is great to vary the interactions with a database.

Acceptance Criteria (Definition of Done)

• Testing
  Make sure the reads start at random positions.
• Documentation update
  There should be none.

Suggested Solution
It might be as simple as passing the random cursor configuration when creating the cursor:

diff --git a/test/cppsuite/src/main/database_operation.cpp b/test/cppsuite/src/main/database_operation.cpp
index 089eeb0ae..c4b240b7b 100644
--- a/test/cppsuite/src/main/database_operation.cpp
+++ b/test/cppsuite/src/main/database_operation.cpp
@@ -231,7 +231,8 @@ database_operation::read_operation(thread_worker *tc)
         collection &coll = tc->db.get_random_collection();
 
         if (cursors.find(coll.id) == cursors.end())
-            cursors.emplace(coll.id, std::move(tc->session.open_scoped_cursor(coll.name)));
+            cursors.emplace(
+              coll.id, std::move(tc->session.open_scoped_cursor(coll.name, "next_random=true")));