terminal: add --name-only option to show only names of failed tests

AUTHORS

@@ -503,6 +503,7 @@ Warren Markham
 Wei Lin
 Wil Cooley
 Will Riley
+Willem Adnet
 William Lee
 Wim Glenn
 Wouter van Ackooy

changelog/14443.feature.rst

@@ -0,0 +1 @@
+Added new CLI argument ``--name-only`` to only display the name of the test when it fails, suppressing tracebacks and other detailed information.

doc/en/reference/reference.rst

@@ -3074,6 +3074,10 @@ Output and Reporting
     * ``log``: show captured logging
     * ``all`` (default): show all captured output
 
+.. option:: --name-only
+
+    Only display the name of the test when it fails, suppressing tracebacks and other detailed information.
+
 .. option:: --color=WHEN
 
     Color terminal output:

src/_pytest/terminal.py

@@ -247,6 +247,13 @@ def pytest_addoption(parser: Parser) -> None:
         help="Controls how captured stdout/stderr/log is shown on failed tests. "
         "Default: all.",
     )
+    group.addoption(
+        "--name-only",
+        action="store_true",
+        default=False,
+        dest="name_only",
+        help="Only display the name of the test when it fails.",
+    )
     group.addoption(
         "--fulltrace",
         "--full-trace",
@@ -1212,14 +1219,18 @@ def summary_failures_combined(
                 if style == "line":
                     for rep in reports:
                         line = self._getcrashline(rep)
-                        self._outrep_summary(rep)
+                        if not self.config.option.name_only:
+                            self._outrep_summary(rep)
                         self.write_line(line)
                 else:
                     for rep in reports:
                         msg = self._getfailureheadline(rep)
-                        self.write_sep("_", msg, red=True, bold=True)
-                        self._outrep_summary(rep)
-                        self._handle_teardown_sections(rep.nodeid)
+                        if self.config.option.name_only:
+                            self._tw.line(msg, red=True, bold=True)
+                        else:
+                            self.write_sep("_", msg, red=True, bold=True)
+                            self._outrep_summary(rep)
+                            self._handle_teardown_sections(rep.nodeid)
 
     def summary_errors(self) -> None:
         if self.config.option.tbstyle != "no":
@@ -1233,8 +1244,11 @@ def summary_errors(self) -> None:
                     msg = "ERROR collecting " + msg
                 else:
                     msg = f"ERROR at {rep.when} of {msg}"
-                self.write_sep("_", msg, red=True, bold=True)
-                self._outrep_summary(rep)
+                if self.config.option.name_only:
+                    self._tw.line(msg, red=True, bold=True)
+                else:
+                    self.write_sep("_", msg, red=True, bold=True)
+                    self._outrep_summary(rep)
 
     def _outrep_summary(self, rep: BaseReport) -> None:
         rep.toterminal(self._tw)

testing/test_name_only.py

@@ -0,0 +1,94 @@
+from __future__ import annotations
+
+import pytest
+
+
+class TestNameOnly:
+    def test_name_only_failures(self, pytester: pytest.Pytester) -> None:
+        pytester.makepyfile(
+            """
+            def test_fail1():
+                assert False
+            def test_fail2():
+                assert False
+            def test_pass():
+                assert True
+            """
+        )
+        result = pytester.runpytest("--name-only")
+        result.stdout.fnmatch_lines(
+            [
+                "=* FAILURES *=",
+                "test_fail1",
+                "test_fail2",
+                "=* short test summary info *=",
+            ]
+        )
+
+        output = result.stdout.str()
+        failures_part = output.split("FAILURES")[1].split("short test summary info")[0]
+        assert "test_fail1" in failures_part
+        assert "test_fail2" in failures_part
+        assert "assert False" not in failures_part
+        assert "E       assert False" not in failures_part
+
+    def test_name_only_errors(self, pytester: pytest.Pytester) -> None:
+        p = pytester.makepyfile(
+            test_error="""
+            import pytest
+            @pytest.fixture
+            def bad_fixture():
+                raise RuntimeError("error in fixture")
+            def test_error(bad_fixture):
+                pass
+        """
+        )
+        result = pytester.runpytest(p, "--name-only")
+        result.stdout.fnmatch_lines(
+            [
+                "=* ERRORS *=",
+                "ERROR at setup of test_error",
+                "=* short test summary info *=",
+                "ERROR test_error.py::test_error - RuntimeError: error in fixture",
+            ]
+        )
+        output = result.stdout.str()
+        errors_part = output.split("ERRORS")[1].split("short test summary info")[0]
+        assert "ERROR at setup of test_error" in errors_part
+        assert "RuntimeError: error in fixture" not in errors_part
+
+    def test_name_only_collection_error(self, pytester: pytest.Pytester) -> None:
+        pytester.makepyfile(
+            """
+            def test_syntax():
+                assert
+            """
+        )
+        result = pytester.runpytest("--name-only")
+        result.stdout.fnmatch_lines(
+            [
+                "=* ERRORS *=",
+                "ERROR collecting test_name_only_collection_error.py",
+                "=* short test summary info *=",
+                "ERROR test_name_only_collection_error.py",
+            ]
+        )
+        output = result.stdout.str()
+        errors_part = output.split("ERRORS")[1].split("short test summary info")[0]
+        assert "ERROR collecting test_name_only_collection_error.py" in errors_part
+        assert "SyntaxError" not in errors_part
+
+    def test_name_only_with_tb_line(self, pytester: pytest.Pytester) -> None:
+        pytester.makepyfile(
+            """
+            def test_fail():
+                assert False
+            """
+        )
+        result = pytester.runpytest("--name-only", "--tb=line")
+        result.stdout.fnmatch_lines(
+            [
+                "=* FAILURES *=",
+                "*test_name_only_with_tb_line.py*: assert False",
+            ]
+        )