Add BERTopic.

LLMTopicDetection_BERTopic/tests/test_plotting/test_documents.py

@@ -0,0 +1,22 @@
+import copy
+import pytest
+
+
+@pytest.mark.parametrize(
+    "model",
+    [
+        ("kmeans_pca_topic_model"),
+        ("base_topic_model"),
+        ("custom_topic_model"),
+        ("merged_topic_model"),
+        ("reduced_topic_model"),
+    ],
+)
+def test_documents(model, reduced_embeddings, documents, request):
+    topic_model = copy.deepcopy(request.getfixturevalue(model))
+    topics = set(topic_model.topics_)
+    if -1 in topics:
+        topics.remove(-1)
+    fig = topic_model.visualize_documents(documents, embeddings=reduced_embeddings, hide_document_hover=True)
+    fig_topics = [int(data["name"].split("_")[0]) for data in fig.to_dict()["data"][1:]]
+    assert set(fig_topics) == topics