[refactor] Simplified code in test_asyncio_mark.

Tests use command-line arguments to set the asyncio mode and warnings filter, instead of a .ini file. This reduces the number of lines in the test module significantly.

Signed-off-by: Michael Seifert <m.seifert@digitalernachschub.de>

Author: seifertm

tests/test_asyncio_mark.py

@@ -15,18 +15,7 @@ def test_a():
             """
         )
     )
-    pytester.makefile(
-        ".ini",
-        pytest=dedent(
-            """\
-            [pytest]
-            asyncio_mode = strict
-            filterwarnings =
-                default
-            """
-        ),
-    )
-    result = pytester.runpytest()
+    result = pytester.runpytest("--asyncio-mode=strict", "-W default")
     result.assert_outcomes(passed=1)
     result.stdout.fnmatch_lines(
         ["*is marked with '@pytest.mark.asyncio' but it is not an async function.*"]
@@ -47,18 +36,7 @@ async def test_a():
             """
         )
     )
-    pytester.makefile(
-        ".ini",
-        pytest=dedent(
-            """\
-            [pytest]
-            asyncio_mode = strict
-            filterwarnings =
-                default
-            """
-        ),
-    )
-    result = pytester.runpytest()
+    result = pytester.runpytest("--asyncio-mode=strict", "-W default")
     result.assert_outcomes(xfailed=1, warnings=1)
     result.stdout.fnmatch_lines(
         ["*Tests based on asynchronous generators are not supported*"]
@@ -76,18 +54,7 @@ async def test_a():
             """
         )
     )
-    pytester.makefile(
-        ".ini",
-        pytest=dedent(
-            """\
-            [pytest]
-            asyncio_mode = auto
-            filterwarnings =
-                default
-            """
-        ),
-    )
-    result = pytester.runpytest()
+    result = pytester.runpytest("--asyncio-mode=auto", "-W default")
     result.assert_outcomes(xfailed=1, warnings=1)
     result.stdout.fnmatch_lines(
         ["*Tests based on asynchronous generators are not supported*"]
@@ -109,18 +76,7 @@ async def test_a(self):
             """
         )
     )
-    pytester.makefile(
-        ".ini",
-        pytest=dedent(
-            """\
-            [pytest]
-            asyncio_mode = strict
-            filterwarnings =
-                default
-            """
-        ),
-    )
-    result = pytester.runpytest()
+    result = pytester.runpytest("--asyncio-mode=strict", "-W default")
     result.assert_outcomes(xfailed=1, warnings=1)
     result.stdout.fnmatch_lines(
         ["*Tests based on asynchronous generators are not supported*"]
@@ -140,18 +96,7 @@ async def test_a():
             """
         )
     )
-    pytester.makefile(
-        ".ini",
-        pytest=dedent(
-            """\
-            [pytest]
-            asyncio_mode = auto
-            filterwarnings =
-                default
-            """
-        ),
-    )
-    result = pytester.runpytest()
+    result = pytester.runpytest("--asyncio-mode=auto", "-W default")
     result.assert_outcomes(xfailed=1, warnings=1)
     result.stdout.fnmatch_lines(
         ["*Tests based on asynchronous generators are not supported*"]
@@ -174,18 +119,7 @@ async def test_a():
             """
         )
     )
-    pytester.makefile(
-        ".ini",
-        pytest=dedent(
-            """\
-            [pytest]
-            asyncio_mode = strict
-            filterwarnings =
-                default
-            """
-        ),
-    )
-    result = pytester.runpytest()
+    result = pytester.runpytest("--asyncio-mode=strict", "-W default")
     result.assert_outcomes(xfailed=1, warnings=1)
     result.stdout.fnmatch_lines(
         ["*Tests based on asynchronous generators are not supported*"]
@@ -205,18 +139,7 @@ async def test_a():
             """
         )
     )
-    pytester.makefile(
-        ".ini",
-        pytest=dedent(
-            """\
-            [pytest]
-            asyncio_mode = auto
-            filterwarnings =
-                default
-            """
-        ),
-    )
-    result = pytester.runpytest()
+    result = pytester.runpytest("--asyncio-mode=auto", "-W default")
     result.assert_outcomes(xfailed=1, warnings=1)
     result.stdout.fnmatch_lines(
         ["*Tests based on asynchronous generators are not supported*"]