feat(reports): extend report generation service [FASE-2.3]

Add quarterly summary and technique detail builders with UUID-safe lookups and unit tests for purple campaign context.

backend/tests/test_report_generation_service.py

@@ -0,0 +1,58 @@
+"""Report generation service tests (FASE-2.3)."""
+
+import uuid
+from unittest.mock import patch
+
+import pytest
+
+from app.domain.exceptions import EntityNotFoundError
+from app.models.campaign import Campaign, CampaignTest
+from app.models.enums import TestState
+from app.models.technique import Technique
+from app.models.test import Test
+
+
+@patch("app.services.report_generation_service.report_engine.generate_pdf")
+def test_generate_purple_campaign_report_pdf(mock_pdf, db, admin_user):
+    mock_pdf.return_value = "/tmp/fake.pdf"
+
+    technique = Technique(
+        mitre_id="T1059.001",
+        name="PowerShell",
+        tactic="execution",
+    )
+    db.add(technique)
+    db.flush()
+
+    campaign = Campaign(name="Q1 Purple", description="Scope", status="active")
+    db.add(campaign)
+    db.flush()
+
+    test = Test(
+        name="PS test",
+        technique_id=technique.id,
+        state=TestState.validated,
+        created_by=admin_user.id,
+    )
+    db.add(test)
+    db.flush()
+    db.add(CampaignTest(campaign_id=campaign.id, test_id=test.id))
+    db.commit()
+
+    path = __import__(
+        "app.services.report_generation_service",
+        fromlist=["generate_purple_campaign_report"],
+    ).generate_purple_campaign_report(db, str(campaign.id), "pdf")
+
+    assert path == "/tmp/fake.pdf"
+    mock_pdf.assert_called_once()
+    context = mock_pdf.call_args[0][1]
+    assert context["tests_validated"] == 1
+    assert len(context["tests"]) == 1
+
+
+def test_generate_technique_detail_not_found(db):
+    from app.services.report_generation_service import generate_technique_detail_report
+
+    with pytest.raises(EntityNotFoundError):
+        generate_technique_detail_report(db, str(uuid.uuid4()), "html")