split up report header lines

i found it painful to read crammed in a single line
thus rootdir, config file and testpaths now have own lines

Author: RonnyPfannschmidt

changelog/10727.improvement.rst

@@ -0,0 +1 @@
+Split the report header for ``rootdir``, ``config file`` and ``testpaths`` so each has its own line.

src/_pytest/terminal.py

@@ -739,16 +739,14 @@ def _write_report_lines_from_hooks(
                     self.write_line(line)
 
     def pytest_report_header(self, config: Config) -> List[str]:
-        line = "rootdir: %s" % config.rootpath
+        result = [f"rootdir: {config.rootpath}"]
 
         if config.inipath:
-            line += ", configfile: " + bestrelpath(config.rootpath, config.inipath)
+            result.append("configfile: " + bestrelpath(config.rootpath, config.inipath))
 
         if config.args_source == Config.ArgsSource.TESTPATHS:
             testpaths: List[str] = config.getini("testpaths")
-            line += ", testpaths: {}".format(", ".join(testpaths))
-
-        result = [line]
+            result.append("testpaths: {}".format(", ".join(testpaths)))
 
         plugininfo = config.pluginmanager.list_plugin_distinfo()
         if plugininfo:

testing/test_config.py

@@ -74,7 +74,7 @@ def test_setupcfg_uses_toolpytest_with_pytest(self, pytester: Pytester) -> None:
             % p1.name,
         )
         result = pytester.runpytest()
-        result.stdout.fnmatch_lines(["*, configfile: setup.cfg, *", "* 1 passed in *"])
+        result.stdout.fnmatch_lines(["configfile: setup.cfg", "* 1 passed in *"])
         assert result.ret == 0
 
     def test_append_parse_args(

testing/test_terminal.py

@@ -909,7 +909,7 @@ def test_header(self, pytester: Pytester) -> None:
         # with configfile
         pytester.makeini("""[pytest]""")
         result = pytester.runpytest()
-        result.stdout.fnmatch_lines(["rootdir: *test_header0, configfile: tox.ini"])
+        result.stdout.fnmatch_lines(["rootdir: *test_header0", "configfile: tox.ini"])
 
         # with testpaths option, and not passing anything in the command-line
         pytester.makeini(
@@ -920,12 +920,12 @@ def test_header(self, pytester: Pytester) -> None:
         )
         result = pytester.runpytest()
         result.stdout.fnmatch_lines(
-            ["rootdir: *test_header0, configfile: tox.ini, testpaths: tests, gui"]
+            ["rootdir: *test_header0", "configfile: tox.ini", "testpaths: tests, gui"]
         )
 
         # with testpaths option, passing directory in command-line: do not show testpaths then
         result = pytester.runpytest("tests")
-        result.stdout.fnmatch_lines(["rootdir: *test_header0, configfile: tox.ini"])
+        result.stdout.fnmatch_lines(["rootdir: *test_header0", "configfile: tox.ini"])
 
     def test_header_absolute_testpath(
         self, pytester: Pytester, monkeypatch: MonkeyPatch
@@ -944,9 +944,9 @@ def test_header_absolute_testpath(
         result = pytester.runpytest()
         result.stdout.fnmatch_lines(
             [
-                "rootdir: *absolute_testpath0, configfile: pyproject.toml, testpaths: {}".format(
-                    tests
-                )
+                "rootdir: *absolute_testpath0",
+                "configfile: pyproject.toml",
+                f"testpaths: {tests}",
             ]
         )