[Corehttp] Changelog update (#45113)

- Update changelog with new version
- Add urljoin fix from core

Signed-off-by: Paul Van Eck <paulvaneck@microsoft.com>

Author: pvaneck

sdk/core/corehttp/CHANGELOG.md

@@ -1,5 +1,17 @@
 # Release History
 
+## 1.0.0b8 (Unreleased)
+
+### Features Added
+
+### Breaking Changes
+
+### Bugs Fixed
+
+- Fixed `PipelineClient.format_url` to avoid adding trailing slashes when the URL template contains only query parameters. #45113
+
+### Other Changes
+
 ## 1.0.0b7 (2026-02-05)
 
 ### Features Added

sdk/core/corehttp/corehttp/_version.py

@@ -9,4 +9,4 @@
 # regenerated.
 # --------------------------------------------------------------------------
 
-VERSION = "1.0.0b7"
+VERSION = "1.0.0b8"

sdk/core/corehttp/corehttp/runtime/_base.py

@@ -74,9 +74,10 @@ def _urljoin(base_url: str, stub_url: str) -> str:
 
     # Note that _replace is a public API named that way to avoid conflicts in namedtuple
     # https://docs.python.org/3/library/collections.html?highlight=namedtuple#collections.namedtuple
-    parsed_base_url = parsed_base_url._replace(
-        path=parsed_base_url.path.rstrip("/") + "/" + stub_url_path,
-    )
+    if stub_url_path:
+        parsed_base_url = parsed_base_url._replace(
+            path=parsed_base_url.path.rstrip("/") + "/" + stub_url_path.lstrip("/"),
+        )
     if stub_url_query:
         query_params = [stub_url_query]
         if parsed_base_url.query:
@@ -108,7 +109,6 @@ def format_url(self, url_template: str, **kwargs: Any) -> str:
         if url:
             parsed = urlparse(url)
             if not parsed.scheme or not parsed.netloc:
-                url = url.lstrip("/")
                 try:
                     base = self._endpoint.format(**kwargs).rstrip("/")
                 except KeyError as key:

sdk/core/corehttp/tests/test_pipeline.py

@@ -22,7 +22,7 @@
     RetryPolicy,
     HTTPPolicy,
 )
-from corehttp.runtime._base import PipelineClientBase, _format_url_section
+from corehttp.runtime._base import PipelineClientBase, _format_url_section, _urljoin
 from corehttp.transport import HttpTransport
 from corehttp.transport.requests import RequestsTransport
 from corehttp.transport.httpx import HttpXTransport
@@ -90,6 +90,25 @@ def test_transport_socket_timeout(transport):
             response = pipeline.run(request, connection_timeout=0.000001, read_timeout=0.000001)
 
 
+def test_url_join():
+    assert _urljoin("devstoreaccount1", "?testdir") == "devstoreaccount1?testdir"
+    assert _urljoin("devstoreaccount1", "?testdir=foo") == "devstoreaccount1?testdir=foo"
+    assert _urljoin("devstoreaccount1/api", "?a=1") == "devstoreaccount1/api?a=1"
+    assert (
+        _urljoin("devstoreaccount1", "/?restype=service&comp=properties")
+        == "devstoreaccount1/?restype=service&comp=properties"
+    )
+    assert _urljoin("devstoreaccount1", "") == "devstoreaccount1"
+    assert _urljoin("devstoreaccount1", "testdir/") == "devstoreaccount1/testdir/"
+    assert _urljoin("devstoreaccount1/", "") == "devstoreaccount1/"
+    assert _urljoin("devstoreaccount1/", "/testdir/") == "devstoreaccount1/testdir/"
+    assert _urljoin("devstoreaccount1/", "testdir/") == "devstoreaccount1/testdir/"
+    assert _urljoin("devstoreaccount1?a=1", "testdir/") == "devstoreaccount1/testdir/?a=1"
+    assert _urljoin("devstoreaccount1", "testdir/?b=2") == "devstoreaccount1/testdir/?b=2"
+    assert _urljoin("devstoreaccount1?a=1", "testdir/?b=2") == "devstoreaccount1/testdir/?a=1&b=2"
+    assert _urljoin("devstoreaccount1", "documentModels:build") == "devstoreaccount1/documentModels:build"
+
+
 def test_format_url_basic():
     client = PipelineClientBase("https://bing.com")
     formatted = client.format_url("/{foo}", foo="bar")
@@ -177,6 +196,39 @@ def test_format_incorrect_endpoint():
     )
 
 
+def test_format_url_query_strings():
+    client = PipelineClientBase("https://foo.core.windows.net")
+    formatted = client.format_url("/")
+    assert formatted == "https://foo.core.windows.net/"
+
+    formatted = client.format_url("/?a=X&c=Y")
+    assert formatted == "https://foo.core.windows.net/?a=X&c=Y"
+
+    formatted = client.format_url("?a=X&c=Y")
+    assert formatted == "https://foo.core.windows.net?a=X&c=Y"
+
+    formatted = client.format_url("/Tables/?a=X&c=Y")
+    assert formatted == "https://foo.core.windows.net/Tables/?a=X&c=Y"
+
+    formatted = client.format_url("/Tables?a=X&c=Y")
+    assert formatted == "https://foo.core.windows.net/Tables?a=X&c=Y"
+
+
+def test_format_url_from_http_request():
+    client = PipelineClientBase("https://foo.core.windows.net")
+
+    _url = "/"
+    _params = {"foo": "bar"}
+    request = HttpRequest("GET", _url, params=_params)
+    formatted = client.format_url(request.url)
+    assert formatted == "https://foo.core.windows.net/?foo=bar"
+
+    _url = "?restype=service&comp=properties"
+    request = HttpRequest("GET", _url)
+    formatted = client.format_url(request.url)
+    assert formatted == "https://foo.core.windows.net?restype=service&comp=properties"
+
+
 def test_request_json():
 
     data = "Lots of dataaaa"