diff --git a/servers/fastapi/tests/assets/gpt-4.pdf b/servers/fastapi/tests/assets/gpt-4.pdf
deleted file mode 100644
index 3cbe8606..00000000
Binary files a/servers/fastapi/tests/assets/gpt-4.pdf and /dev/null differ
diff --git a/servers/fastapi/tests/assets/impact_of_llms.pdf b/servers/fastapi/tests/assets/impact_of_llms.pdf
new file mode 100644
index 00000000..3c4fae33
Binary files /dev/null and b/servers/fastapi/tests/assets/impact_of_llms.pdf differ
diff --git a/servers/fastapi/tests/assets/the_sun.pdf b/servers/fastapi/tests/assets/the_sun.pdf
deleted file mode 100644
index a32e1375..00000000
Binary files a/servers/fastapi/tests/assets/the_sun.pdf and /dev/null differ
diff --git a/servers/fastapi/tests/test_document_decompose.py b/servers/fastapi/tests/test_document_decompose.py
new file mode 100644
index 00000000..236c9e6b
--- /dev/null
+++ b/servers/fastapi/tests/test_document_decompose.py
@@ -0,0 +1,34 @@
+import os
+from fastapi.testclient import TestClient
+
+from api.main import app
+
+client = TestClient(app)
+
+def test_upload_and_decompose_document():
+    # Get the absolute path to the test asset
+    current_dir = os.path.dirname(os.path.abspath(__file__))
+    file_path = os.path.join(current_dir, "assets", "impact_of_llms.pdf")
+    
+    # Step 1: Upload the document
+    with open(file_path, "rb") as f:
+        upload_response = client.post(
+            "/ppt/files/upload",
+            files={"documents": ("impact_of_llms.pdf", f, "application/pdf")}
+        )
+    assert upload_response.status_code == 200
+    upload_json = upload_response.json()
+    assert "documents" in upload_json
+    assert len(upload_json["documents"]) > 0
+    
+    # Step 2: Decompose the uploaded document
+    decompose_response = client.post(
+        "/ppt/files/decompose",
+        json={"documents": upload_json["documents"]}
+    )
+    assert decompose_response.status_code == 200
+    decompose_json = decompose_response.json()
+    assert "documents" in decompose_json
+    # Verify the decomposition created a text file for the uploaded document
+    assert upload_json["documents"][0] in decompose_json["documents"]
+    assert decompose_json["documents"][upload_json["documents"][0]].endswith(".txt")
diff --git a/servers/fastapi/tests/test_document_upload.py b/servers/fastapi/tests/test_document_upload.py
new file mode 100644
index 00000000..c23b3140
--- /dev/null
+++ b/servers/fastapi/tests/test_document_upload.py
@@ -0,0 +1,24 @@
+from fastapi.testclient import TestClient
+from api.main import app
+
+client = TestClient(app)
+
+file = "tests/assets/impact_of_llms.pdf"
+
+def test_upload_files():
+    with open(file, "rb") as f:
+        response = client.post(
+            "/ppt/files/upload",
+            files={"documents": ("impact_of_llms.pdf", f, "application/pdf")},
+        )
+    assert response.status_code == 200
+    response_json = response.json()
+    assert "documents" in response_json
+    assert "images" in response_json
+
+def test_upload_files_no_files():
+    response = client.post("/ppt/files/upload")
+    assert response.status_code == 200
+    response_json = response.json()
+    assert response_json["documents"] == []
+    assert response_json["images"] == []
\ No newline at end of file
diff --git a/servers/fastapi/tests/test_image_generation.py b/servers/fastapi/tests/test_image_generation.py
deleted file mode 100644
index f29d7938..00000000
--- a/servers/fastapi/tests/test_image_generation.py
+++ /dev/null
@@ -1,16 +0,0 @@
-from image_processor.images_finder import generate_image
-from ppt_generator.models.query_and_prompt_models import (
-    ImageAspectRatio,
-    ImagePromptWithThemeAndAspectRatio,
-)
-
-
-async def test_image_generation():
-    await generate_image(
-        ImagePromptWithThemeAndAspectRatio(
-            image_prompt="halloween night at a haunted museum",
-            theme_prompt="halloween",
-            aspect_ratio=ImageAspectRatio.r_1_1,
-        ),
-        output_path="/tmp/presenton/generated_image.jpg",
-    )
diff --git a/servers/fastapi/tests/test_research_report_generator.py b/servers/fastapi/tests/test_research_report_generator.py
deleted file mode 100644
index 8f3ffbba..00000000
--- a/servers/fastapi/tests/test_research_report_generator.py
+++ /dev/null
@@ -1,8 +0,0 @@
-from research_report.generator import get_report
-
-
-async def test_research_report_generator():
-    query = "global warming"
-    language = "English"
-    report = await get_report(query, language)
-    print(report)
diff --git a/servers/fastapi/tests/test_stream_presentation.py b/servers/fastapi/tests/test_stream_presentation.py
new file mode 100644
index 00000000..2a8c1ada
--- /dev/null
+++ b/servers/fastapi/tests/test_stream_presentation.py
@@ -0,0 +1,88 @@
+from unittest.mock import patch, MagicMock
+from fastapi.testclient import TestClient
+import json
+
+from api.main import app
+from api.models import SessionModel
+
+client = TestClient(app)
+
+def mock_stream_response():
+    return [
+        {"type": "start", "data": "Starting presentation generation"},
+        {"type": "slide_start", "data": "Generating slide 1"},
+        {"type": "slide_end", "data": "Completed slide 1"},
+        {"type": "slide_start", "data": "Generating slide 2"},
+        {"type": "slide_end", "data": "Completed slide 2"},
+        {"type": "end", "data": "Presentation generation complete"}
+    ]
+
+@patch('api.routers.presentation.handlers.generate_stream.PresentationGenerateStreamHandler.get')
+def test_presentation_flow(mock_stream):
+    # Setup mock for streaming response
+    mock_stream.return_value = mock_stream_response()
+
+    # Step 1: Upload document
+    test_file_path = "tests/assets/impact_of_llms.pdf"
+    with open(test_file_path, "rb") as f:
+        upload_response = client.post(
+            "/ppt/files/upload",
+            files={"documents": ("impact_of_llms.pdf", f, "application/pdf")}
+        )
+    assert upload_response.status_code == 200
+    upload_json = upload_response.json()
+    assert "documents" in upload_json
+    assert len(upload_json["documents"]) > 0
+
+    # Step 2: Decompose uploaded document
+    decompose_response = client.post(
+        "/ppt/files/decompose",
+        json={"documents": upload_json["documents"]}
+    )
+    assert decompose_response.status_code == 200
+    decompose_json = decompose_response.json()
+    assert "documents" in decompose_json
+    assert upload_json["documents"][0] in decompose_json["documents"]
+
+    # Step 3: Create presentation
+    create_response = client.post(
+        "/ppt/create",
+        json={
+            "prompt": "Create a presentation about LLMs",
+            "n_slides": 2,
+            "language": "en",
+            "documents": upload_json["documents"]
+        }
+    )
+    assert create_response.status_code == 200
+    presentation = create_response.json()
+    presentation_id = presentation["id"]
+
+    # Step 4: Generate presentation data and get session
+    gen_data_response = client.post(
+        "/ppt/generate/data",
+        json={
+            "presentation_id": presentation_id,
+            "theme": None,
+            "images": None,
+            "watermark": True,
+            "titles": ["Introduction to LLMs", "Impact of LLMs"]
+        }
+    )
+    assert gen_data_response.status_code == 200
+    session_data = gen_data_response.json()
+    assert "session" in session_data
+
+    # Step 5: Stream presentation generation
+    stream_response = client.get(f"/ppt/generate/stream?presentation_id={presentation_id}&session={session_data['session']}")
+    assert stream_response.status_code == 200
+    
+    # Verify stream events
+    events = list(mock_stream_response())
+    assert len(events) > 0
+    assert events[0]["type"] == "start"
+    assert events[-1]["type"] == "end"
+    assert any(event["type"] == "slide_start" for event in events)
+    assert any(event["type"] == "slide_end" for event in events)
+
+
diff --git a/servers/fastapi/tests/test_summary_generator.py b/servers/fastapi/tests/test_summary_generator.py
deleted file mode 100644
index 1112347f..00000000
--- a/servers/fastapi/tests/test_summary_generator.py
+++ /dev/null
@@ -1,22 +0,0 @@
-import asyncio
-from dotenv import load_dotenv
-
-load_dotenv()
-
-from document_processor.loader import DocumentsLoader
-from ppt_config_generator.document_summary_generator import generate_document_summary
-from api.services.instances import temp_file_service
-
-
-async def test_generate_document_summary():
-    documents_loader = DocumentsLoader(
-        [
-            "tests/assets/the_sun.pdf",
-        ]
-    )
-    temp_dir = temp_file_service.create_temp_dir()
-    await documents_loader.load_documents(temp_dir)
-
-    summary = await generate_document_summary(documents_loader.documents)
-    print(summary)
-    assert summary is not None