Fix starlette testing matrix for updated behavior. (#869)

Co-authored-by: Lalleh Rafeei <lrafeei@users.noreply.github.com>
Co-authored-by: Hannah Stepanek <hmstepanek@users.noreply.github.com>
Co-authored-by: Uma Annamalai <umaannamalai@users.noreply.github.com>

tests/framework_starlette/test_bg_tasks.py

@@ -89,11 +89,20 @@ def _test():
 
     # The bug was fixed in version 0.21.0 but re-occured in 0.23.1.
     # The bug was also not present on 0.20.1 to 0.23.1 if using Python3.7.
-    BUG_COMPLETELY_FIXED = (0, 21, 0) <= starlette_version < (0, 23, 1) or (
-        (0, 20, 1) <= starlette_version < (0, 23, 1) and sys.version_info[:2] > (3, 7)
+    # The bug was fixed again in version 0.29.0
+    BUG_COMPLETELY_FIXED = any(
+        (
+            (0, 21, 0) <= starlette_version < (0, 23, 1),
+            (0, 20, 1) <= starlette_version < (0, 23, 1) and sys.version_info[:2] > (3, 7),
+            starlette_version >= (0, 29, 0),
+        )
+    )
+    BUG_PARTIALLY_FIXED = any(
+        (
+            (0, 20, 1) <= starlette_version < (0, 21, 0),
+            (0, 23, 1) <= starlette_version < (0, 29, 0),
+        )
     )
-    BUG_PARTIALLY_FIXED = (0, 20, 1) <= starlette_version < (0, 21, 0) or starlette_version >= (0, 23, 1)
-
     if BUG_COMPLETELY_FIXED:
         # Assert both web transaction and background task transactions are present.
         _test = validate_transaction_metrics(

tox.ini

@@ -149,7 +149,7 @@ envlist =
     python-framework_pyramid-{py37,py38,py39,py310,py311,pypy38}-Pyramidlatest,
     python-framework_sanic-{py38,pypy38}-sanic{190301,1906,1912,200904,210300,2109,2112,2203,2290},
     python-framework_sanic-{py37,py38,py39,py310,py311,pypy38}-saniclatest,
-    python-framework_starlette-{py310,pypy38}-starlette{0014,0015,0019},
+    python-framework_starlette-{py310,pypy38}-starlette{0014,0015,0019,0028},
     python-framework_starlette-{py37,py38}-starlette{002001},
     python-framework_starlette-{py37,py38,py39,py310,py311,pypy38}-starlettelatest,
     python-framework_strawberry-{py37,py38,py39,py310,py311}-strawberrylatest,
@@ -359,6 +359,7 @@ deps =
     framework_starlette-starlette0015: starlette<0.16
     framework_starlette-starlette0019: starlette<0.20
     framework_starlette-starlette002001: starlette==0.20.1
+    framework_starlette-starlette0028: starlette<0.29
     framework_starlette-starlettelatest: starlette
     framework_strawberry: starlette
     framework_strawberry-strawberrylatest: strawberry-graphql