SONARPY-3250 S6243: document FP (#439)

GitOrigin-RevId: 3e6d4a7f9f0740286d569d3ac600c6ef5427f22a

Author: Seppli11

python-checks/src/main/java/org/sonar/python/checks/AwsLambdaClientInstantiationCheck.java

@@ -60,6 +60,7 @@ public class AwsLambdaClientInstantiationCheck extends PythonSubscriptionCheck {
 
   private final TypeCheckMap<String> isClientOrResourceTypeCheckMap = new TypeCheckMap<>();
 
+  @Override
   public void initialize(Context context) {
     context.registerSyntaxNodeConsumer(Tree.Kind.FILE_INPUT, this::setupTypeChecker);
     context.registerSyntaxNodeConsumer(Tree.Kind.CALL_EXPR, this::checkCall);

python-checks/src/test/resources/checks/awsLambdaClientInstantiation.py

@@ -39,6 +39,23 @@ def lambda_handler(event, context):
 
     mongoengine_connection = mongoengine.connect('project1')  # Noncompliant
 
+def fps_client_created_from_event_handler(event, context):
+    # FPs from SONARPY-3242
+
+    s3_client = boto3.client('s3', event) # Noncompliant
+
+    s3_client = boto3.client('s3', event['region']) # Noncompliant
+
+    s3_client = boto3.client('s3', context.get_remaining_time_in_millis()) # Noncompliant
+    s3_client = boto3.client('s3', context.function_name) # Noncompliant
+
+    region = get_region(event) 
+    s3_client = boto3.client('s3', region) # Noncompliant
+
+
+def get_region(event):
+    return event
+
 
 s3_client = boto3.client('s3')
 s3 = boto3.resource('s3')