fix and test "-rP" option to show xpass-test ids

--HG--
branch : trunk

py/_plugin/pytest_skipping.py

@@ -234,7 +234,7 @@ def pytest_terminal_summary(terminalreporter):
     for char in tr.reportchars:
         if char == "x":
             show_xfailed(terminalreporter, lines)
-        elif char == "X":
+        elif char == "P":
             show_xpassed(terminalreporter, lines)
         elif char == "f":
             show_failed(terminalreporter, lines)

testing/plugin/test_pytest_skipping.py

@@ -280,3 +280,24 @@ def test_skipped_reasons_functional(testdir):
     ])
     assert result.ret == 0
 
+def test_reportchars(testdir):
+    testdir.makepyfile("""
+        import py
+        def test_1():
+            assert 0
+        @py.test.mark.xfail
+        def test_2():
+            assert 0
+        @py.test.mark.xfail
+        def test_3():
+            pass
+        def test_4():
+            py.test.skip("four")
+    """)
+    result = testdir.runpytest("-rfxPs")
+    result.stdout.fnmatch_lines([
+        "FAIL*test_1*",
+        "XFAIL*test_2*",
+        "XPASS*test_3*",
+        "SKIP*four*",
+    ])