From 73d562d5aa1b5a557cbda17c14e5bb3bc23e96d6 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=C4=90=E1=BB=8Bnh=20Nguy=E1=BB=85n?= <N.X.Dinh@outlook.com>
Date: Fri, 22 May 2026 14:45:21 -0400
Subject: [PATCH 1/2] Add data source LU1 (Luxembourg STATEC)

Registers the Luxembourg national statistical office (STATEC,
dissemination platform LUSTAT) as data source LU1. LU1 is the
service's own SDMX agency id, so a bare Client("LU1").dataflow()
resolves without an explicit agency argument.

- sources.json: LU1 entry; the supports block disables the five
  structural endpoints the service answers with HTTP 404.
- test_sources.py: TestLU1 - endpoint_args for the data endpoint and
  an xfail mapping for the endpoints returning HTTP 400
  (organisationscheme) and 501 (structure), plus the sdmx-internal
  metadata and registration entries.
- test_source.py: bump the expected source count to 36.
- sources.rst: LU1 source section.
- whatsnew.rst: changelog entry.

DataSourceTest against the live service: 13 passed, 21 xfailed.
---
 doc/sources.rst            | 11 +++++++++++
 doc/whatsnew.rst           |  6 ++++--
 sdmx/sources.json          | 12 ++++++++++++
 sdmx/tests/test_source.py  |  2 +-
 sdmx/tests/test_sources.py | 17 +++++++++++++++++
 5 files changed, 45 insertions(+), 3 deletions(-)

diff --git a/doc/sources.rst b/doc/sources.rst
index 3fa8de16..c2e8cd09 100644
--- a/doc/sources.rst
+++ b/doc/sources.rst
@@ -421,6 +421,17 @@ SDMX-ML —
 - This web service returns the non-standard HTTP content-type "application/force-download"; :mod:`sdmx` replaces it with "application/xml".
 
 
+.. _LU1:
+
+``LU1``: STATEC (Luxembourg)
+----------------------------
+
+SDMX-ML —
+`Website <https://lustat.statec.lu/>`__
+
+- LUSTAT is the data dissemination platform of STATEC, the national statistical institute of Luxembourg.
+
+
 .. _NB:
 
 ``NB``: Norges Bank (Norway)
diff --git a/doc/whatsnew.rst b/doc/whatsnew.rst
index 7f771914..9f178274 100644
--- a/doc/whatsnew.rst
+++ b/doc/whatsnew.rst
@@ -3,8 +3,10 @@
 What's new?
 ***********
 
-.. Next release
-.. ============
+Next release
+============
+
+- Add :ref:`LU1` data source: Luxembourg STATEC (LUSTAT).
 
 v2.26.0 (2026-04-04)
 ====================
diff --git a/sdmx/sources.json b/sdmx/sources.json
index cc53a6b1..2cc24885 100644
--- a/sdmx/sources.json
+++ b/sdmx/sources.json
@@ -342,6 +342,18 @@
       "structureset": false
     }
   },
+  {
+    "id": "LU1",
+    "name": "Luxembourg STATEC",
+    "url": "https://lustat.statec.lu/rest",
+    "supports": {
+      "agencyscheme": false,
+      "dataconsumerscheme": false,
+      "metadataflow": false,
+      "metadatastructure": false,
+      "structureset": false
+    }
+  },
   {
     "id": "NB",
     "name": "Norges Bank (NO)",
diff --git a/sdmx/tests/test_source.py b/sdmx/tests/test_source.py
index 5782cd74..d9a46bb5 100644
--- a/sdmx/tests/test_source.py
+++ b/sdmx/tests/test_source.py
@@ -17,7 +17,7 @@ def test_get_source(caplog):
 def test_list_sources():
     source_ids = list_sources()
     # Correct number of sources, excluding those created for testing
-    assert 35 == len(set(source_ids) - {"MOCK", "TEST"})
+    assert 36 == len(set(source_ids) - {"MOCK", "TEST"})
 
     # Listed alphabetically
     assert "ABS" == source_ids[0]
diff --git a/sdmx/tests/test_sources.py b/sdmx/tests/test_sources.py
index 75352186..83bf9635 100644
--- a/sdmx/tests/test_sources.py
+++ b/sdmx/tests/test_sources.py
@@ -577,6 +577,23 @@ class TestLSD(DataSourceTest):
     }
 
 
+class TestLU1(DataSourceTest):
+    """Luxembourg STATEC (LUSTAT)."""
+
+    source_id = "LU1"
+
+    endpoint_args = {
+        "data": dict(resource_id="DF_A1100", params=dict(lastNObservations=1)),
+    }
+
+    xfail = {
+        "metadata": NotImplementedError,  # Internal to sdmx1
+        "organisationscheme": HTTPError,  # 400 Bad Request
+        "registration": ValueError,  # Internal to sdmx1
+        "structure": NotImplementedError,  # 501 Not Implemented
+    }
+
+
 class TestNB(DataSourceTest):
     """Norges Bank.
 

From 18743dc26bb4520e752724d7d04d2712d6f0ec4a Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=C4=90=E1=BB=8Bnh=20Nguy=E1=BB=85n?= <N.X.Dinh@outlook.com>
Date: Fri, 22 May 2026 15:57:10 -0400
Subject: [PATCH 2/2] Reference PR #283 in the LU1 whatsnew entry

---
 doc/whatsnew.rst | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/doc/whatsnew.rst b/doc/whatsnew.rst
index 9f178274..1cbaf7a8 100644
--- a/doc/whatsnew.rst
+++ b/doc/whatsnew.rst
@@ -6,7 +6,7 @@ What's new?
 Next release
 ============
 
-- Add :ref:`LU1` data source: Luxembourg STATEC (LUSTAT).
+- Add :ref:`LU1` data source: Luxembourg STATEC (LUSTAT) (:pull:`283`).
 
 v2.26.0 (2026-04-04)
 ====================