feat: Add InterSystems IRIS vector database support (#29480)

Co-authored-by: Tomo Okuyama <tomo.okuyama@intersystems.com>

api/tests/integration_tests/vdb/iris/test_iris.py

@@ -0,0 +1,44 @@
+"""Integration tests for IRIS vector database."""
+
+from core.rag.datasource.vdb.iris.iris_vector import IrisVector, IrisVectorConfig
+from tests.integration_tests.vdb.test_vector_store import (
+    AbstractVectorTest,
+    setup_mock_redis,
+)
+
+
+class IrisVectorTest(AbstractVectorTest):
+    """Test suite for IRIS vector store implementation."""
+
+    def __init__(self):
+        """Initialize IRIS vector test with hardcoded test configuration.
+
+        Note: Uses 'host.docker.internal' to connect from DevContainer to
+        host OS Docker, or 'localhost' when running directly on host OS.
+        """
+        super().__init__()
+        self.vector = IrisVector(
+            collection_name=self.collection_name,
+            config=IrisVectorConfig(
+                IRIS_HOST="host.docker.internal",
+                IRIS_SUPER_SERVER_PORT=1972,
+                IRIS_USER="_SYSTEM",
+                IRIS_PASSWORD="Dify@1234",
+                IRIS_DATABASE="USER",
+                IRIS_SCHEMA="dify",
+                IRIS_CONNECTION_URL=None,
+                IRIS_MIN_CONNECTION=1,
+                IRIS_MAX_CONNECTION=3,
+                IRIS_TEXT_INDEX=True,
+                IRIS_TEXT_INDEX_LANGUAGE="en",
+            ),
+        )
+
+
+def test_iris_vector(setup_mock_redis) -> None:
+    """Run all IRIS vector store tests.
+
+    Args:
+        setup_mock_redis: Pytest fixture for mock Redis setup
+    """
+    IrisVectorTest().run_all_tests()