Add -rp and -rP options to report passing tests.

-rP is an alternative to `-s` for viewing the output of passing tests.
This causes the captured stdout/stderr of passing tests to be output in
the same way as that of failing tests.

-rp adds a simple one-line-per-test summary for passing tests.

Neither option is included by -ra.

Additional changes to `pytest_capturelog` and `pytest_catchlog` are
needed for this option to also output captured logs: They must be
changed to use `rep.sections.add` instead of `rep.longrepr.addsection`,
and to add these additional sections even if the test passes, since
passing tests don't seem to have a `longrepr` at report time.

_pytest/runner.py

@@ -177,9 +177,13 @@ class BaseReport(object):
         self.__dict__.update(kw)
 
     def toterminal(self, out):
-        longrepr = self.longrepr
         if hasattr(self, 'node'):
             out.line(getslaveinfoline(self.node))
+
+        longrepr = self.longrepr
+        if longrepr is None:
+            return
+
         if hasattr(longrepr, 'toterminal'):
             longrepr.toterminal(out)
         else:

_pytest/skipping.py

@@ -252,6 +252,9 @@ def pytest_terminal_summary(terminalreporter):
             show_skipped(terminalreporter, lines)
         elif char == "E":
             show_simple(terminalreporter, lines, 'error', "ERROR %s")
+        elif char == 'p':
+            show_simple(terminalreporter, lines, 'passed', "PASSED %s")
+
     if lines:
         tr._tw.sep("=", "short test summary info")
         for line in lines:

_pytest/terminal.py

@@ -22,7 +22,8 @@ def pytest_addoption(parser):
     group._addoption('-r',
          action="store", dest="reportchars", default=None, metavar="chars",
          help="show extra test summary info as specified by chars (f)ailed, "
-              "(E)error, (s)skipped, (x)failed, (X)passed (w)pytest-warnings (a)all.")
+              "(E)error, (s)skipped, (x)failed, (X)passed (w)pytest-warnings "
+              "(p)passed, (P)passed with output, (a)all except pP.")
     group._addoption('-l', '--showlocals',
          action="store_true", dest="showlocals", default=False,
          help="show locals in tracebacks (disabled by default).")
@@ -367,10 +368,12 @@ class TerminalReporter:
             self.summary_errors()
             self.summary_failures()
             self.summary_warnings()
+            self.summary_passes()
             self.config.hook.pytest_terminal_summary(terminalreporter=self)
         if exitstatus == EXIT_INTERRUPTED:
             self._report_keyboardinterrupt()
             del self._keyboardinterrupt_memo
+
         self.summary_deselected()
         self.summary_stats()
 
@@ -446,6 +449,18 @@ class TerminalReporter:
                 self._tw.line("W%s %s %s" % (w.code,
                               w.fslocation, w.message))
 
+    def summary_passes(self):
+        if self.config.option.tbstyle != "no":
+            if self.hasopt("P"):
+                reports = self.getreports('passed')
+                if not reports:
+                    return
+                self.write_sep("=", "PASSES")
+                for rep in reports:
+                    msg = self._getfailureheadline(rep)
+                    self.write_sep("_", msg)
+                    self._outrep_summary(rep)
+
     def summary_failures(self):
         if self.config.option.tbstyle != "no":
             reports = self.getreports('failed')