Merge branch 'okken_report_xfail' into report_xfails

AUTHORS

@@ -266,6 +266,7 @@ Michael Goerz
 Michael Krebs
 Michael Seifert
 Michal Wajszczuk
+Michał Górny
 Michał Zięba
 Mickey Pashov
 Mihai Capotă

changelog/11712.bugfix.rst

@@ -0,0 +1 @@
+Fixed handling ``NO_COLOR`` and ``FORCE_COLOR`` to ignore an empty value.

doc/en/reference/reference.rst

@@ -1146,13 +1146,13 @@ When set to ``0``, pytest will not use color.
 
 .. envvar:: NO_COLOR
 
-When set (regardless of value), pytest will not use color in terminal output.
+When set to a non-empty string (regardless of value), pytest will not use color in terminal output.
 ``PY_COLORS`` takes precedence over ``NO_COLOR``, which takes precedence over ``FORCE_COLOR``.
 See `no-color.org <https://no-color.org/>`__ for other libraries supporting this community standard.
 
 .. envvar:: FORCE_COLOR
 
-When set (regardless of value), pytest will use color in terminal output.
+When set to a non-empty string (regardless of value), pytest will use color in terminal output.
 ``PY_COLORS`` and ``NO_COLOR`` take precedence over ``FORCE_COLOR``.
 
 Exceptions

src/_pytest/_io/terminalwriter.py

@@ -29,9 +29,9 @@ def should_do_markup(file: TextIO) -> bool:
         return True
     if os.environ.get("PY_COLORS") == "0":
         return False
-    if "NO_COLOR" in os.environ:
+    if os.environ.get("NO_COLOR"):
         return False
-    if "FORCE_COLOR" in os.environ:
+    if os.environ.get("FORCE_COLOR"):
         return True
     return (
         hasattr(file, "isatty") and file.isatty() and os.environ.get("TERM") != "dumb"

src/_pytest/terminal.py

@@ -1202,8 +1202,11 @@ class TerminalReporter:
                     verbose_word, **{_color_for_type["warnings"]: True}
                 )
                 nodeid = _get_node_id_with_markup(self._tw, self.config, rep)
+                line = f"{markup_word} {nodeid}"
                 reason = rep.wasxfail
-                lines.append(f"{markup_word} {nodeid} {reason}")
+                if reason:
+                    line += " - " + str(reason)
+                lines.append(line)
 
         def show_skipped(lines: List[str]) -> None:
             skipped: List[CollectReport] = self.stats.get("skipped", [])

testing/io/test_terminalwriter.py

@@ -5,6 +5,7 @@ import shutil
 import sys
 from pathlib import Path
 from typing import Generator
+from typing import Optional
 from unittest import mock
 
 import pytest
@@ -164,53 +165,67 @@ def test_attr_hasmarkup() -> None:
     assert "\x1b[0m" in s
 
 
-def assert_color_set():
+def assert_color(expected: bool, default: Optional[bool] = None) -> None:
     file = io.StringIO()
-    tw = terminalwriter.TerminalWriter(file)
+    if default is None:
-    assert tw.hasmarkup
+        default = not expected
+    file.isatty = lambda: default  # type: ignore
+    tw = terminalwriter.TerminalWriter(file=file)
+    assert tw.hasmarkup is expected
     tw.line("hello", bold=True)
     s = file.getvalue()
-    assert len(s) > len("hello\n")
+    if expected:
-    assert "\x1b[1m" in s
+        assert len(s) > len("hello\n")
-    assert "\x1b[0m" in s
+        assert "\x1b[1m" in s
-
+        assert "\x1b[0m" in s
-
+    else:
-def assert_color_not_set():
+        assert s == "hello\n"
-    f = io.StringIO()
-    f.isatty = lambda: True  # type: ignore
-    tw = terminalwriter.TerminalWriter(file=f)
-    assert not tw.hasmarkup
-    tw.line("hello", bold=True)
-    s = f.getvalue()
-    assert s == "hello\n"
 
 
 def test_should_do_markup_PY_COLORS_eq_1(monkeypatch: MonkeyPatch) -> None:
     monkeypatch.setitem(os.environ, "PY_COLORS", "1")
-    assert_color_set()
+    assert_color(True)
 
 
 def test_should_not_do_markup_PY_COLORS_eq_0(monkeypatch: MonkeyPatch) -> None:
     monkeypatch.setitem(os.environ, "PY_COLORS", "0")
-    assert_color_not_set()
+    assert_color(False)
 
 
 def test_should_not_do_markup_NO_COLOR(monkeypatch: MonkeyPatch) -> None:
     monkeypatch.setitem(os.environ, "NO_COLOR", "1")
-    assert_color_not_set()
+    assert_color(False)
 
 
 def test_should_do_markup_FORCE_COLOR(monkeypatch: MonkeyPatch) -> None:
     monkeypatch.setitem(os.environ, "FORCE_COLOR", "1")
-    assert_color_set()
+    assert_color(True)
 
 
-def test_should_not_do_markup_NO_COLOR_and_FORCE_COLOR(
+@pytest.mark.parametrize(
+    ["NO_COLOR", "FORCE_COLOR", "expected"],
+    [
+        ("1", "1", False),
+        ("", "1", True),
+        ("1", "", False),
+    ],
+)
+def test_NO_COLOR_and_FORCE_COLOR(
     monkeypatch: MonkeyPatch,
+    NO_COLOR: str,
+    FORCE_COLOR: str,
+    expected: bool,
 ) -> None:
-    monkeypatch.setitem(os.environ, "NO_COLOR", "1")
+    monkeypatch.setitem(os.environ, "NO_COLOR", NO_COLOR)
-    monkeypatch.setitem(os.environ, "FORCE_COLOR", "1")
+    monkeypatch.setitem(os.environ, "FORCE_COLOR", FORCE_COLOR)
-    assert_color_not_set()
+    assert_color(expected)
+
+
+def test_empty_NO_COLOR_and_FORCE_COLOR_ignored(monkeypatch: MonkeyPatch) -> None:
+    monkeypatch.setitem(os.environ, "NO_COLOR", "")
+    monkeypatch.setitem(os.environ, "FORCE_COLOR", "")
+    assert_color(True, True)
+    assert_color(False, False)
 
 
 class TestTerminalWriterLineWidth:

testing/test_skipping.py

@@ -649,7 +649,7 @@ class TestXFail:
             result.stdout.fnmatch_lines(
                 [
                     "*test_strict_xfail*",
-                    "XPASS test_strict_xfail.py::test_foo unsupported feature",
+                    "XPASS test_strict_xfail.py::test_foo - unsupported feature",
                 ]
             )
         assert result.ret == (1 if strict else 0)

testing/test_terminal.py

@@ -2614,3 +2614,122 @@ def test_format_trimmed() -> None:
 
     assert _format_trimmed(" ({}) ", msg, len(msg) + 4) == " (unconditional skip) "
     assert _format_trimmed(" ({}) ", msg, len(msg) + 3) == " (unconditional ...) "
+
+
+def test_summary_xfail_reason(pytester: Pytester) -> None:
+    pytester.makepyfile(
+        """
+        import pytest
+
+        @pytest.mark.xfail
+        def test_xfail():
+            assert False
+
+        @pytest.mark.xfail(reason="foo")
+        def test_xfail_reason():
+            assert False
+        """
+    )
+    result = pytester.runpytest("-rx")
+    expect1 = "XFAIL test_summary_xfail_reason.py::test_xfail"
+    expect2 = "XFAIL test_summary_xfail_reason.py::test_xfail_reason - foo"
+    result.stdout.fnmatch_lines([expect1, expect2])
+    assert result.stdout.lines.count(expect1) == 1
+    assert result.stdout.lines.count(expect2) == 1
+
+
+def test_summary_xfail_tb(pytester: Pytester) -> None:
+    pytester.makepyfile(
+        """
+        import pytest
+
+        @pytest.mark.xfail
+        def test_xfail():
+            a, b = 1, 2
+            assert a == b
+        """
+    )
+    result = pytester.runpytest("-rx")
+    result.stdout.fnmatch_lines(
+        [
+            "*= XFAILURES =*",
+            "*_ test_xfail _*",
+            "* @pytest.mark.xfail*",
+            "* def test_xfail():*",
+            "*    a, b = 1, 2*",
+            "> *assert a == b*",
+            "E *assert 1 == 2*",
+            "test_summary_xfail_tb.py:6: AssertionError*",
+            "*= short test summary info =*",
+            "XFAIL test_summary_xfail_tb.py::test_xfail",
+            "*= 1 xfailed in * =*",
+        ]
+    )
+
+
+def test_xfail_tb_line(pytester: Pytester) -> None:
+    pytester.makepyfile(
+        """
+        import pytest
+
+        @pytest.mark.xfail
+        def test_xfail():
+            a, b = 1, 2
+            assert a == b
+        """
+    )
+    result = pytester.runpytest("-rx", "--tb=line")
+    result.stdout.fnmatch_lines(
+        [
+            "*= XFAILURES =*",
+            "*test_xfail_tb_line.py:6: assert 1 == 2",
+            "*= short test summary info =*",
+            "XFAIL test_xfail_tb_line.py::test_xfail",
+            "*= 1 xfailed in * =*",
+        ]
+    )
+
+
+def test_summary_xpass_reason(pytester: Pytester) -> None:
+    pytester.makepyfile(
+        """
+        import pytest
+
+        @pytest.mark.xfail
+        def test_pass():
+            ...
+
+        @pytest.mark.xfail(reason="foo")
+        def test_reason():
+            ...
+        """
+    )
+    result = pytester.runpytest("-rX")
+    expect1 = "XPASS test_summary_xpass_reason.py::test_pass"
+    expect2 = "XPASS test_summary_xpass_reason.py::test_reason - foo"
+    result.stdout.fnmatch_lines([expect1, expect2])
+    assert result.stdout.lines.count(expect1) == 1
+    assert result.stdout.lines.count(expect2) == 1
+
+
+def test_xpass_output(pytester: Pytester) -> None:
+    pytester.makepyfile(
+        """
+        import pytest
+
+        @pytest.mark.xfail
+        def test_pass():
+            print('hi there')
+        """
+    )
+    result = pytester.runpytest("-rX")
+    result.stdout.fnmatch_lines(
+        [
+            "*= XPASSES =*",
+            "*_ test_pass _*",
+            "*- Captured stdout call -*",
+            "*= short test summary info =*",
+            "XPASS test_xpass_output.py::test_pass*",
+            "*= 1 xpassed in * =*",
+        ]
+    )