andygrove commented on code in PR #3370:
URL: https://github.com/apache/datafusion-comet/pull/3370#discussion_r2759930034


##########
docs/source/contributor-guide/sql-file-tests.md:
##########
@@ -25,10 +25,21 @@ way to add expression and operator test coverage without 
writing Scala test code
 
 ## Running the tests
 
+Run all SQL file tests:
+
+```shell
+mvn test -Dsuites="org.apache.comet.CometSqlFileTestSuite" -Dtest=none
+```
+
+Run a single test file by adding the file name (without `.sql` extension) 
after the suite name:
+
 ```shell
-mvn test -pl spark -Dsuites="org.apache.comet.CometSqlFileTestSuite" 
-Dtest=none
+mvn test -Dsuites="org.apache.comet.CometSqlFileTestSuite create_named_struct" 
-Dtest=none
 ```
 
+This uses ScalaTest's substring matching, so the argument must match part of 
the test name.
+Test names follow the pattern `sql-file: expressions/<category>/<file>.sql 
[<config>]`.

Review Comment:
   Yes, you can specify the full test name, including config.



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