diff --git a/.github/workflows/confluence-daily-dte.yaml b/.github/workflows/confluence-daily-dte.yaml
index 94487707..88a35f17 100644
--- a/.github/workflows/confluence-daily-dte.yaml
+++ b/.github/workflows/confluence-daily-dte.yaml
@@ -44,10 +44,6 @@ jobs:
             echo "TESTRAIL_USERNAME=${{ secrets.TESTRAIL_USERNAME }}" >> $GITHUB_ENV
             echo "TESTRAIL_PASSWORD=${{ secrets.TESTRAIL_PASSWORD }}" >> $GITHUB_ENV
             echo "GITHUB_TOKEN=${{ secrets.GITHUB_TOKEN }}" >> $GITHUB_ENV
-            echo "JIRA_HOST=${{ secrets.JIRA_HOST }}" >> $GITHUB_ENV
-            echo "JIRA_USER=${{ secrets.JIRA_USER }}" >> $GITHUB_ENV
-            echo "JIRA_PASSWORD=${{ secrets.JIRA_PASSWORD }}" >> $GITHUB_ENV
-
             echo "BUGZILLA_API_KEY=${{ secrets.BUGZILLA_API_KEY }}" >> $GITHUB_ENV
 
             echo "ATLASSIAN_API_TOKEN=${{ secrets.ATLASSIAN_API_TOKEN }}" >> $GITHUB_ENV
diff --git a/.github/workflows/confluence-daily.yaml b/.github/workflows/confluence-daily.yaml
index 5244bb5e..12b30430 100644
--- a/.github/workflows/confluence-daily.yaml
+++ b/.github/workflows/confluence-daily.yaml
@@ -38,9 +38,6 @@ jobs:
             echo "TESTRAIL_USERNAME=${{ secrets.TESTRAIL_USERNAME }}" >> $GITHUB_ENV
             echo "TESTRAIL_PASSWORD=${{ secrets.TESTRAIL_PASSWORD }}" >> $GITHUB_ENV
             echo "GITHUB_TOKEN=${{ secrets.GITHUB_TOKEN }}" >> $GITHUB_ENV
-            echo "JIRA_HOST=${{ secrets.JIRA_HOST }}" >> $GITHUB_ENV
-            echo "JIRA_USER=${{ secrets.JIRA_USER }}" >> $GITHUB_ENV
-            echo "JIRA_PASSWORD=${{ secrets.JIRA_PASSWORD }}" >> $GITHUB_ENV
 
             echo "BUGZILLA_API_KEY=${{ secrets.BUGZILLA_API_KEY }}" >> $GITHUB_ENV
 
diff --git a/.github/workflows/preflight-push.yaml b/.github/workflows/preflight-push.yaml
index b6507d4d..5be0cdf2 100644
--- a/.github/workflows/preflight-push.yaml
+++ b/.github/workflows/preflight-push.yaml
@@ -26,9 +26,6 @@ env:
   ATLASSIAN_API_TOKEN: ${{ secrets.ATLASSIAN_API_TOKEN }}
   ATLASSIAN_HOST: ${{ secrets.ATLASSIAN_HOST }}
   ATLASSIAN_USERNAME: ${{ secrets.ATLASSIAN_USERNAME }}
-  JIRA_HOST: ${{ secrets.JIRA_HOST }}
-  JIRA_USER: ${{ secrets.JIRA_USER }}
-  JIRA_PASSWORD: ${{ secrets.JIRA_PASSWORD }}
   GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
   BUGZILLA_API_KEY: ${{ secrets.BUGZILLA_API_KEY }}
   BITRISE_HOST: ${{ secrets.BITRISE_HOST }}
diff --git a/.github/workflows/production-daily-desktop.yaml b/.github/workflows/production-daily-desktop.yaml
index 2f1e9065..26db1c71 100644
--- a/.github/workflows/production-daily-desktop.yaml
+++ b/.github/workflows/production-daily-desktop.yaml
@@ -57,9 +57,6 @@ jobs:
             echo "TESTRAIL_USERNAME=${{ secrets.TESTRAIL_USERNAME }}" >> $GITHUB_ENV
             echo "TESTRAIL_PASSWORD=${{ secrets.TESTRAIL_PASSWORD }}" >> $GITHUB_ENV
             echo "GITHUB_TOKEN=${{ secrets.GITHUB_TOKEN }}" >> $GITHUB_ENV
-            echo "JIRA_HOST=${{ secrets.JIRA_HOST }}" >> $GITHUB_ENV
-            echo "JIRA_USER=${{ secrets.JIRA_USER }}" >> $GITHUB_ENV
-            echo "JIRA_PASSWORD=${{ secrets.JIRA_PASSWORD }}" >> $GITHUB_ENV
             echo "BUGZILLA_API_KEY=${{ secrets.BUGZILLA_API_KEY }}" >> $GITHUB_ENV
             echo "ATLASSIAN_API_TOKEN=${{ secrets.ATLASSIAN_API_TOKEN }}" >> $GITHUB_ENV
             echo "ATLASSIAN_HOST=${{ secrets.ATLASSIAN_HOST }}" >> $GITHUB_ENV
diff --git a/.github/workflows/production-daily.yml b/.github/workflows/production-daily.yml
index f180e6c7..8879cc89 100644
--- a/.github/workflows/production-daily.yml
+++ b/.github/workflows/production-daily.yml
@@ -22,9 +22,6 @@ env:
   ATLASSIAN_API_TOKEN: ${{ secrets.ATLASSIAN_API_TOKEN }}
   ATLASSIAN_HOST: ${{ secrets.ATLASSIAN_HOST }}
   ATLASSIAN_USERNAME: ${{ secrets.ATLASSIAN_USERNAME }}
-  JIRA_HOST: ${{ secrets.JIRA_HOST }}
-  JIRA_USER: ${{ secrets.JIRA_USER }}
-  JIRA_PASSWORD: ${{ secrets.JIRA_PASSWORD }}
   GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
   BUGZILLA_API_KEY: ${{ secrets.BUGZILLA_API_KEY }}
   BITRISE_HOST: ${{ secrets.BITRISE_HOST }}
diff --git a/.github/workflows/production-weekly-desktop.yaml b/.github/workflows/production-weekly-desktop.yaml
index 5564e65d..1eaeb122 100644
--- a/.github/workflows/production-weekly-desktop.yaml
+++ b/.github/workflows/production-weekly-desktop.yaml
@@ -57,9 +57,6 @@ jobs:
             echo "ATLASSIAN_HOST=${{ secrets.ATLASSIAN_HOST }}" >> $GITHUB_ENV
             echo "ATLASSIAN_USERNAME=${{ secrets.ATLASSIAN_USERNAME }}" >> $GITHUB_ENV
             echo "BUGZILLA_API_KEY=${{ secrets.BUGZILLA_API_KEY }}" >> $GITHUB_ENV
-            echo "JIRA_HOST=${{ secrets.JIRA_HOST }}" >> $GITHUB_ENV
-            echo "JIRA_USER=${{ secrets.JIRA_USER }}" >> $GITHUB_ENV
-            echo "JIRA_PASSWORD=${{ secrets.JIRA_PASSWORD }}" >> $GITHUB_ENV
       - run: python ./__main__.py ${{ matrix.args }}
         continue-on-error: true
 
diff --git a/.github/workflows/production-weekly-firefox-ios-deepdive.yaml b/.github/workflows/production-weekly-firefox-ios-deepdive.yaml
index 2322420e..a119b1e5 100644
--- a/.github/workflows/production-weekly-firefox-ios-deepdive.yaml
+++ b/.github/workflows/production-weekly-firefox-ios-deepdive.yaml
@@ -23,9 +23,6 @@ env:
   ATLASSIAN_API_TOKEN: ${{ secrets.ATLASSIAN_API_TOKEN }}
   ATLASSIAN_HOST: ${{ secrets.ATLASSIAN_HOST }}
   ATLASSIAN_USERNAME: ${{ secrets.ATLASSIAN_USERNAME }}
-  JIRA_HOST: ${{ secrets.JIRA_HOST }}
-  JIRA_USER: ${{ secrets.JIRA_USER }}
-  JIRA_PASSWORD: ${{ secrets.JIRA_PASSWORD }}
   GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
   BUGZILLA_API_KEY: ${{ secrets.BUGZILLA_API_KEY }}
   BITRISE_HOST: ${{ secrets.BITRISE_HOST }}
diff --git a/.github/workflows/production-weekly.yml b/.github/workflows/production-weekly.yml
index 028adfc8..4cd29a2a 100644
--- a/.github/workflows/production-weekly.yml
+++ b/.github/workflows/production-weekly.yml
@@ -44,9 +44,6 @@ jobs:
             echo "ATLASSIAN_API_TOKEN=${{ secrets.ATLASSIAN_API_TOKEN }}" >> $GITHUB_ENV
             echo "ATLASSIAN_HOST=${{ secrets.ATLASSIAN_HOST }}" >> $GITHUB_ENV
             echo "ATLASSIAN_USERNAME=${{ secrets.ATLASSIAN_USERNAME }}" >> $GITHUB_ENV
-            echo "JIRA_HOST=${{ secrets.JIRA_HOST }}" >> $GITHUB_ENV
-            echo "JIRA_USER=${{ secrets.JIRA_USER }}" >> $GITHUB_ENV
-            echo "JIRA_PASSWORD=${{ secrets.JIRA_PASSWORD }}" >> $GITHUB_ENV
 
       #- name: Update DB - test runs 
       #  run: python ./__main__.py --report-type test-run-counts --project ALL --num-days 7
diff --git a/.github/workflows/staging-daily-desktop.yml b/.github/workflows/staging-daily-desktop.yml
index 870e630c..83f8f12b 100644
--- a/.github/workflows/staging-daily-desktop.yml
+++ b/.github/workflows/staging-daily-desktop.yml
@@ -55,9 +55,6 @@ jobs:
             echo "TESTRAIL_USERNAME=${{ secrets.TESTRAIL_USERNAME }}" >> $GITHUB_ENV
             echo "TESTRAIL_PASSWORD=${{ secrets.TESTRAIL_PASSWORD }}" >> $GITHUB_ENV
             echo "GITHUB_TOKEN=${{ secrets.GITHUB_TOKEN }}" >> $GITHUB_ENV
-            echo "JIRA_HOST=${{ secrets.JIRA_HOST }}" >> $GITHUB_ENV
-            echo "JIRA_USER=${{ secrets.JIRA_USER }}" >> $GITHUB_ENV
-            echo "JIRA_PASSWORD=${{ secrets.JIRA_PASSWORD }}" >> $GITHUB_ENV
             echo "BUGZILLA_API_KEY=${{ secrets.BUGZILLA_API_KEY }}" >> $GITHUB_ENV
             echo "ATLASSIAN_API_TOKEN=${{ secrets.ATLASSIAN_API_TOKEN }}" >> $GITHUB_ENV
             echo "ATLASSIAN_HOST=${{ secrets.ATLASSIAN_HOST }}" >> $GITHUB_ENV
diff --git a/.github/workflows/staging-daily.yml b/.github/workflows/staging-daily.yml
index 7eacac07..89192f27 100644
--- a/.github/workflows/staging-daily.yml
+++ b/.github/workflows/staging-daily.yml
@@ -23,9 +23,6 @@ env:
   ATLASSIAN_API_TOKEN: ${{ secrets.ATLASSIAN_API_TOKEN }}
   ATLASSIAN_HOST: ${{ secrets.ATLASSIAN_HOST }}
   ATLASSIAN_USERNAME: ${{ secrets.ATLASSIAN_USERNAME }}
-  JIRA_HOST: ${{ secrets.JIRA_HOST }}
-  JIRA_USER: ${{ secrets.JIRA_USER }}
-  JIRA_PASSWORD: ${{ secrets.JIRA_PASSWORD }}
   GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
   BUGZILLA_API_KEY: ${{ secrets.BUGZILLA_API_KEY }}
   BITRISE_HOST: ${{ secrets.BITRISE_HOST }}
diff --git a/.github/workflows/staging-weekly-desktop.yml b/.github/workflows/staging-weekly-desktop.yml
index 48f12123..b4ec238b 100644
--- a/.github/workflows/staging-weekly-desktop.yml
+++ b/.github/workflows/staging-weekly-desktop.yml
@@ -57,9 +57,6 @@ jobs:
             echo "ATLASSIAN_HOST=${{ secrets.ATLASSIAN_HOST }}" >> $GITHUB_ENV
             echo "ATLASSIAN_USERNAME=${{ secrets.ATLASSIAN_USERNAME }}" >> $GITHUB_ENV
             echo "BUGZILLA_API_KEY=${{ secrets.BUGZILLA_API_KEY }}" >> $GITHUB_ENV
-            echo "JIRA_HOST=${{ secrets.JIRA_HOST }}" >> $GITHUB_ENV
-            echo "JIRA_USER=${{ secrets.JIRA_USER }}" >> $GITHUB_ENV
-            echo "JIRA_PASSWORD=${{ secrets.JIRA_PASSWORD }}" >> $GITHUB_ENV
       - run: python ./__main__.py ${{ matrix.args }}
         continue-on-error: true
 
diff --git a/.github/workflows/staging-weekly.yml b/.github/workflows/staging-weekly.yml
index 41bcf26d..0f8b533e 100644
--- a/.github/workflows/staging-weekly.yml
+++ b/.github/workflows/staging-weekly.yml
@@ -23,9 +23,6 @@ env:
   ATLASSIAN_API_TOKEN: ${{ secrets.ATLASSIAN_API_TOKEN }}
   ATLASSIAN_HOST: ${{ secrets.ATLASSIAN_HOST }}
   ATLASSIAN_USERNAME: ${{ secrets.ATLASSIAN_USERNAME }}
-  JIRA_HOST: ${{ secrets.JIRA_HOST }}
-  JIRA_USER: ${{ secrets.JIRA_USER }}
-  JIRA_PASSWORD: ${{ secrets.JIRA_PASSWORD }}
   GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
   BUGZILLA_API_KEY: ${{ secrets.BUGZILLA_API_KEY }}
   BITRISE_HOST: ${{ secrets.BITRISE_HOST }}
diff --git a/.github/workflows/unit-tests-daily.yml b/.github/workflows/unit-tests-daily.yml
new file mode 100644
index 00000000..6b4bd7bf
--- /dev/null
+++ b/.github/workflows/unit-tests-daily.yml
@@ -0,0 +1,47 @@
+name: Unit Tests - Daily
+
+# Daily @9am UTC + manual trigger
+on:
+  schedule:
+    - cron: "0 9 * * *"
+  workflow_dispatch:
+
+env:
+  ATLASSIAN_USERNAME: ${{ secrets.ATLASSIAN_USERNAME }}
+  ATLASSIAN_API_TOKEN: ${{ secrets.ATLASSIAN_API_TOKEN }}
+
+jobs:
+  unit-tests:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Check out source repository
+        uses: actions/checkout@v6
+
+      - name: Set up Python environment
+        uses: actions/setup-python@v6
+        with:
+          python-version: "3.11"
+
+      - name: Install dependencies
+        run: pip install -r requirements.txt
+
+      - name: Run unit tests
+        run: python -m unittest discover -s tests -v
+
+      - name: Set job log URL
+        if: always()
+        run: echo "JOB_LOG_URL=https://github.com/${{ github.repository }}/actions/runs/${{ github.run_id }}" >> $GITHUB_ENV
+
+      - name: Send workflow status to Slack
+        if: always()
+        uses: slackapi/slack-github-action@v3.0.1
+        env:
+          WORKFLOW_NAME: ${{ github.workflow }}
+          BRANCH: ${{ github.head_ref || github.ref_name }}
+          JOB_STATUS: ${{ job.status == 'success' && ':white_check_mark:' || ':x:' }}
+          JOB_STATUS_COLOR: ${{ job.status == 'success' && '#36a64f' || '#FF0000' }}
+        with:
+          webhook: ${{ secrets.SLACK_WEBHOOK_URL_MOBILE_ALERTS_TOOLING }}
+          webhook-type: webhook-trigger
+          payload-templated: true
+          payload-file-path: "./config/payload-slack-content.json"
diff --git a/api/jira/client.py b/api/jira/client.py
index 76ded5c2..09d63b9e 100644
--- a/api/jira/client.py
+++ b/api/jira/client.py
@@ -18,7 +18,6 @@
     FILTER_ID_ALL_REQUEST_ISSUE_TYPE,
     FILTER_ID_QA_NEEDED_iOS,
     FIREFOX_RELEASE_TRAIN,
-    HOST_JIRA,
     MAX_RESULT,
     QATT_BOARD,
     QATT_PARENT_TICKETS_IN_BOARD,
@@ -33,11 +32,10 @@ class Jira:
 
     def __init__(self):
         try:
-            # _url_host = os.environ['JIRA_HOST']
-            _url_host = f"https://{HOST_JIRA}/rest/api/3"
+            _url_host = f"https://{os.environ['ATLASSIAN_HOST']}/rest/api/3"
             self.client = JiraAPIClient(_url_host)
-            self.client.user = os.environ['JIRA_USER']
-            self.client.password = os.environ['JIRA_PASSWORD']
+            self.client.user = os.environ['ATLASSIAN_USERNAME']
+            self.client.password = os.environ['ATLASSIAN_API_TOKEN']
         except KeyError:
             print("ERROR: Missing jira env var")
             sys.exit(1)
diff --git a/api/jira/report_qa_requests.py b/api/jira/report_qa_requests.py
index 02288bcc..79566e08 100644
--- a/api/jira/report_qa_requests.py
+++ b/api/jira/report_qa_requests.py
@@ -55,8 +55,10 @@ def jira_qa_requests():
     df = prepare_jira_df(payload)
 
     if df.empty:
-        logger.warning("Jira filtersreturned empty payload; no DB delete/insert.")
-        return
+        raise ValueError(
+            "jira_qa_requests returned empty payload — "
+            "check Jira credentials or filter. Database was not modified."
+        )
 
     jira_delete(ReportJiraQARequests)
 
@@ -92,8 +94,10 @@ def jira_qa_requests_workload():
     df = prepare_jira_df(payload)
 
     if df.empty:
-        logger.warning("Empty payload; skipping DB delete/insert.")
-        return
+        raise ValueError(
+            "jira_qa_requests_workload returned empty payload — "
+            "check Jira credentials or filter. Database was not modified."
+        )
 
     jira_delete(ReportJIraQARequestsNewIssueType)
 
diff --git a/api/jira/report_qa_requests_desktop.py b/api/jira/report_qa_requests_desktop.py
index 5cc0c659..ce5ba0c1 100644
--- a/api/jira/report_qa_requests_desktop.py
+++ b/api/jira/report_qa_requests_desktop.py
@@ -79,8 +79,10 @@ def jira_qa_requests_desktop():
     df = prepare_jira_df(payload)
 
     if df.empty:
-        logger.warning("Jira filtersreturned empty payload; no DB delete/insert.")
-        return
+        raise ValueError(
+            "jira_qa_requests_desktop returned empty payload — "
+            "check Jira credentials or filter. Database was not modified."
+        )
 
     jira_delete(ReportJiraQARequestsDesktop)
 
diff --git a/api/jira/report_worklogs.py b/api/jira/report_worklogs.py
index 20388002..a39da60e 100644
--- a/api/jira/report_worklogs.py
+++ b/api/jira/report_worklogs.py
@@ -42,6 +42,12 @@ def jira_worklogs():
     worklog_data = []
     issues = jira.filter_sv_parent_in_board()
 
+    if not issues:
+        raise ValueError(
+            "No issues returned from QATT board — "
+            "check Jira credentials or filter. Database was not modified."
+        )
+
     for issue in issues:
         parent_key = (issue.get("fields", {}).get("parent") or {}).get("key", issue.get("key"))  # noqa
         parent_name = issue.get("fields", {}).get("summary", "Unknown")
@@ -139,6 +145,12 @@ def jira_worklogs():
     # FIX: Replace NaN values with None for MySQL compatibility
     df = df.astype(object).where(df.notna(), None)
 
+    if df.empty:
+        raise ValueError(
+            "Issues were fetched but no worklog data found — "
+            "Database was not modified."
+        )
+
     jira_delete(ReportJiraSoftvisionWorklogs)
     report_jira_worklogs_insert(df)
 
diff --git a/constants.py b/constants.py
index c88b9fbd..9bd43771 100644
--- a/constants.py
+++ b/constants.py
@@ -65,9 +65,6 @@
     "sentry-rates",
 ]
 
-# Jira Host
-HOST_JIRA = "mozilla-hub.atlassian.net"
-
 # JQL query options
 SEARCH = "search/jql"
 ISSUES = "issues"
diff --git a/tests/test_jira_api_client.py b/tests/test_jira_api_client.py
index dc86fff2..dc704862 100644
--- a/tests/test_jira_api_client.py
+++ b/tests/test_jira_api_client.py
@@ -4,19 +4,26 @@
 # License, v. 2.0. If a copy of the MPL was not distributed with this
 # file, You can obtain one at http://mozilla.org/MPL/2.0/.
 
+import os
+import sys
 import unittest
 import requests
 
 from unittest.mock import MagicMock, patch
 from lib.jira_conn import JiraAPIClient
-from constants import HOST_JIRA
 
-JIRA_HOST = f"https://{HOST_JIRA}/rest/api/3/"
+# Prevent database.py from connecting to MySQL at import time during unit tests.
+# database.py runs autoload_with=pool at module level (to reflect table schemas),
+# which requires a live DB connection. Unit tests don't have one.
+if 'database' not in sys.modules:
+    sys.modules['database'] = MagicMock()
+
+ATLASSIAN_BASE_URL = f"https://{os.environ['ATLASSIAN_HOST']}/rest/api/3/"
 
 
 class TestsJiraAPIClient(unittest.TestCase):
     def setUp(self):
-        self.client = JiraAPIClient(JIRA_HOST)
+        self.client = JiraAPIClient(ATLASSIAN_BASE_URL)
         self.client.user = ""
         self.client.password = ""
 
@@ -41,7 +48,7 @@ def test_get_search_url_construction(self, mock_get):
 
         # Verify the full URL passed to requests.get
         called_url = mock_get.call_args.args[0]
-        expected_url = f"{JIRA_HOST}search/jql?jql=project=MTE"
+        expected_url = f"{ATLASSIAN_BASE_URL}search/jql?jql=project=MTE"
         self.assertEqual(called_url, expected_url)
 
     @patch("lib.jira_conn.requests.get")
@@ -120,7 +127,7 @@ def test_get_search_worklog_url_construction(self, mock_get):
 
         # Verify the full URL passed to requests.get
         called_url = mock_get.call_args.args[0]
-        expected_url = f"{JIRA_HOST}issue/MTE-123/worklog"
+        expected_url = f"{ATLASSIAN_BASE_URL}issue/MTE-123/worklog"
         self.assertEqual(called_url, expected_url)
 
     @patch("lib.jira_conn.requests.get")
@@ -194,7 +201,7 @@ def test_get_search_default_endpoint_url_construction(self, mock_get):
 
         # Verify the full URL passed to requests.get
         called_url = mock_get.call_args.args[0]
-        expected_url = f"{JIRA_HOST}project"
+        expected_url = f"{ATLASSIAN_BASE_URL}project"
         self.assertEqual(called_url, expected_url)
 
     @patch("lib.jira_conn.requests.get")
@@ -264,3 +271,121 @@ def test_base_url_keeps_trailing_slash(self):
         self.assertTrue(client_with_slash._JiraAPIClient__url.endswith('/'))
         # Should not have double slash
         self.assertFalse(client_with_slash._JiraAPIClient__url.endswith('//'))
+
+
+class TestJiraCredentialsIntegration(unittest.TestCase):
+    """
+    Integration test — hits the real Jira API using ATLASSIAN_USERNAME and
+    ATLASSIAN_API_TOKEN env vars. Fails if credentials are missing, expired,
+    or revoked.
+    """
+    def setUp(self):
+        self.user = os.environ["ATLASSIAN_USERNAME"]
+        self.password = os.environ["ATLASSIAN_API_TOKEN"]
+        self.base_url = ATLASSIAN_BASE_URL
+
+    def test_credentials_are_valid(self):
+        r = requests.get(
+            self.base_url + "myself",
+            headers={"Accept": "application/json"},
+            auth=(self.user, self.password),
+            timeout=60,
+        )
+        self.assertEqual(
+            r.status_code, 200,
+            f"Auth failed for {self.user} — {r.status_code}: {r.text}"
+        )
+
+
+class TestJiraWorklogs(unittest.TestCase):
+
+    @patch("api.jira.report_worklogs._jira")
+    def test_raises_if_no_issues_returned(self, mock_jira):
+        """If the board returns 0 issues, raise ValueError and do not touch the DB."""
+        from api.jira.report_worklogs import jira_worklogs
+
+        mock_jira.return_value.filter_sv_parent_in_board.return_value = []
+
+        with self.assertRaises(ValueError) as ctx:
+            jira_worklogs()
+
+        self.assertIn("No issues returned", str(ctx.exception))
+
+    @patch("api.jira.report_worklogs.jira_delete")
+    @patch("api.jira.report_worklogs._jira")
+    def test_db_not_cleared_when_no_issues(self, mock_jira, mock_delete):
+        """jira_delete must not be called if 0 issues are returned."""
+        from api.jira.report_worklogs import jira_worklogs
+
+        mock_jira.return_value.filter_sv_parent_in_board.return_value = []
+
+        try:
+            jira_worklogs()
+        except ValueError:
+            pass
+
+        mock_delete.assert_not_called()
+
+    @patch("api.jira.report_worklogs.jira_delete")
+    @patch("api.jira.report_worklogs._jira")
+    def test_db_not_cleared_when_no_worklogs(self, mock_jira, mock_delete):
+        """jira_delete must not be called if issues exist but all have 0 worklogs."""
+        from api.jira.report_worklogs import jira_worklogs
+
+        mock_client = mock_jira.return_value
+        mock_client.filter_sv_parent_in_board.return_value = [
+            {"key": "QATT-1", "fields": {"summary": "Test issue", "parent": None}}
+        ]
+        mock_client.filter_child_issues.return_value = []
+        mock_client.filter_worklogs.return_value = []
+
+        with self.assertRaises(ValueError) as ctx:
+            jira_worklogs()
+
+        self.assertIn("no worklog data found", str(ctx.exception))
+        mock_delete.assert_not_called()
+
+
+class TestJiraQARequestsEmptyPayload(unittest.TestCase):
+
+    @patch("api.jira.report_qa_requests.jira_delete")
+    @patch("api.jira.report_qa_requests._jira")
+    def test_qa_requests_raises_on_empty_payload(self, mock_jira, mock_delete):
+        """jira_delete must not be called if filters() returns no issues."""
+        from api.jira.report_qa_requests import jira_qa_requests
+
+        mock_jira.return_value.filters.return_value = []
+
+        with self.assertRaises(ValueError) as ctx:
+            jira_qa_requests()
+
+        self.assertIn("empty payload", str(ctx.exception))
+        mock_delete.assert_not_called()
+
+    @patch("api.jira.report_qa_requests.jira_delete")
+    @patch("api.jira.report_qa_requests._jira")
+    def test_qa_requests_workload_raises_on_empty_payload(self, mock_jira, mock_delete):
+        """jira_delete must not be called if filters_new_issue_type() returns empty."""
+        from api.jira.report_qa_requests import jira_qa_requests_workload
+
+        mock_jira.return_value.filters_new_issue_type.return_value = []
+
+        with self.assertRaises(ValueError) as ctx:
+            jira_qa_requests_workload()
+
+        self.assertIn("empty payload", str(ctx.exception))
+        mock_delete.assert_not_called()
+
+    @patch("api.jira.report_qa_requests_desktop.jira_delete")
+    @patch("api.jira.report_qa_requests_desktop._jira")
+    def test_qa_requests_desktop_raises_on_empty_payload(self, mock_jira, mock_delete):
+        """jira_delete must not be called if filters() returns no issues."""
+        from api.jira.report_qa_requests_desktop import jira_qa_requests_desktop
+
+        mock_jira.return_value.filters.return_value = []
+
+        with self.assertRaises(ValueError) as ctx:
+            jira_qa_requests_desktop()
+
+        self.assertIn("empty payload", str(ctx.exception))
+        mock_delete.assert_not_called()