[mmu probing] pr08.test: Add integration tests for end-to-end probing workflows

tests/saitests/mock/it/__init__.py

@@ -0,0 +1,17 @@
+"""
+Probe Mock Tests
+
+This directory contains Probe Mock Tests (PMT) for the Mock Testing Framework.
+
+Test Coverage:
+- test_pfc_xoff_probing.py: PFC XOFF threshold detection
+- test_ingress_drop_probing.py: Ingress drop threshold detection
+- test_headroom_pool_probing.py: Headroom calculation (multi-executor)
+
+Running Tests:
+    cd tests/saitests/mock/it
+    python3 -m pytest . -v -s
+
+Output:
+All tests produce markdown table output identical to physical tests.
+"""

tests/saitests/mock/it/conftest.py

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+#!/usr/bin/env python3
+# -*- coding: utf-8 -*-
+
+"""
+Pytest configuration for Probe Mock Tests
+"""
+
+import pytest
+
+
+@pytest.fixture
+def mock_observer():
+    """Mock observer for simple tests (deprecated - use ProbingObserver)"""
+    class MockObserver:
+        def __init__(self):
+            pass
+
+        def on_iteration_start(self, *args, **kwargs):
+            pass
+
+        def on_iteration_complete(self, *args, **kwargs):
+            pass
+    return MockObserver()