Import sh and python wvtest modules from open source wvtest.

Imported from commit 986215d1ac52aed4c95090c7a18cd7f4736c726a.

Arguably we should import these by adding their own git repo, but they're so
tiny and rarely-changing that it probably isn't worth it.  This keeps all
our files together nicely.

Change-Id: If5bfc90b0a701ae593690d7db98110c6c934758b
diff --git a/wvtest/LICENSE b/wvtest/LICENSE
new file mode 100644
index 0000000..eb685a5
--- /dev/null
+++ b/wvtest/LICENSE
@@ -0,0 +1,481 @@
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diff --git a/wvtest/README b/wvtest/README
new file mode 100644
index 0000000..824114a
--- /dev/null
+++ b/wvtest/README
@@ -0,0 +1,375 @@
+
+WvTest: the dumbest cross-platform test framework that could possibly work
+==========================================================================
+
+I have a problem with your unit testing framework.  Yes, you.
+The person reading this.  No, don't look away guiltily.  You
+know your unit testing framework sucks.  You know it has a
+million features you don't understand.  You know you hate it,
+and it hates you.  Don't you?
+
+Okay, fine.  Let's be honest.  Actually, I don't know who you
+are or how you feel about your unit testing framework, but I've
+tried a lot of them, and I don't like any of them.  WvTest is
+the first one I don't hate, at least sort of.  That might be
+because I'm crazy and I only like things I design, or it might
+be because I'm crazy and therefore I'm the only one capable of
+designing a likable unit testing framework.  Who am I to say?
+
+Here are the fundamental design goals of WvTest:
+
+ - Be the stupidest thing that can possibly work.  People are
+   way, way too serious about their testing frameworks.  Some
+   people build testing frameworks as their *full time job*.
+   This is ridiculous.  A test framework, at its core, only does
+   one thing: it runs a program that returns true or false.  If
+   it's false, you lose.  If it's true, you win.  Everything
+   after that is gravy.  And WvTest has only a minimal amount of
+   gravy.
+
+ - Be a protocol, not an API.  If you don't like my API, you can
+   write your own, and it can still be WvTest and it can still
+   integrate with other WvTest tools.  If you're stuck with
+   JUnit or NUnit, you can just make your JUnit/NUnit test
+   produce WvTest-compatible output if you want (although I've
+   never done this, so you'll have to do it yourself).  I'll
+   describe the protocol below.
+
+ - Work with multiple languages on multiple operating systems.
+   I'm a programmer who programs on Linux, MacOS, and Windows,
+   to name just three, and I write in lots of programming
+   languages, including C, C++, C#, Python, Perl, and others.
+   And worse, some of my projects use *multiple* languages and I
+   want to have unit tests for *all* of them.  I don't know of
+   any unit testing framework - except maybe some horrendously
+   overdesigned ones - that work with multiple languages at
+   once.  WvTest does.
+
+ - NO UNNECESSARY OBJECT ORIENTATION.  The big unit testing
+   craze seems to have been started by JUnit in Java, which is
+   object-oriented.  Now, that's not a misdesign in JUnit; it's
+   a misdesign in Java.  You see, you can't *not* encapsulate
+   absolutely everything in Java in a class, so it's perfectly
+   normal for JUnit to require you to encapsulate everything in
+   a class.  That's not true of almost any other language
+   (except C#), and yet *every* clone of JUnit in *every*
+   language seems to have copied its classes and objects.  Well,
+   that's stupid.  WvTest is designed around the simple idea of
+   test *functions*.  WvTest runs your function, it checks a
+   bunch of stuff and it returns or else it dies horribly.  If
+   your function wants to instantiate some objects while it does
+   that, then that's great; WvTest doesn't care.  And yes, you
+   can assert whether two variables are equal even if your
+   function *isn't* in a particular class, just as God intended.
+
+ - Don't make me name or describe my individual tests.  How many
+   times have you seen this?
+
+       assertTrue(thing.works(), "thing didn't work!");
+
+   The reasoning there is that if the test fails, we want to be
+   able to print a user-friendly error message that describes
+   why.  Right?  NO!!  That is *awful*.  That just *doubled* the
+   amount of work you have to do in order to write a test.
+   Instead, WvTest auto-generates output including the line
+   number of the test and the code on that line.  So you get a
+   message like this:
+
+       ! mytest.t.cc:431  thing.works()    FAILED
+
+   and all you have to write is this:
+
+       WVPASS(thing.works());
+
+   (WVPASS is all-caps because it's a macro in C++, but also
+    because you want your tests to stand out.  That's what
+    you'll be looking for when it fails, after all.  And don't
+    even get me started about the 'True' in assertTrue.  Come
+    on, *obviously* you're going to assert that the condition is
+    true!)
+
+ - No setup() and teardown() functions or fixtures.  "Ouch!" you
+   say.  "I'm going to have so much duplicated code!" No, only
+   if you're an idiot.  You know what setup() and teardown() are
+   code names for?  Constructor and destructor.  Create some
+   objects and give them constructors and destructors, and I
+   think you'll find that, like magic, you've just invented
+   "test fixtures."  Nothing any test framework can possibly do
+   will make that any easier.  In fact, everything test
+   frameworks *try* to do with test fixtures just makes it
+   harder to write, read, and understand.  Forget it.
+
+ - Big long scary test functions.  Some test frameworks are
+   insistent about the rule that "every function should test
+   only one thing." Nobody ever really explains why.  I can't
+   understand this; it just causes uncontrolled
+   hormone-imbalance hypergrowth in your test files, and you
+   have to type more stuff... and run test fixtures over and
+   over.
+
+   My personal theory for why people hate big long test
+   functions: it's because their assertTrue() implementation
+   doesn't say which test failed, so they'd like the *name of
+   the function* to be the name of the failed test.  Well,
+   that's a cute workaround to a problem you shouldn't have had
+   in the first place.  With WvTest, WVPASS() actually tells you
+   exactly what passed and what failed, so it's perfectly okay -
+   and totally comprehensible - to have a sequence of five
+   things in a row where only thing number five failed.
+
+
+The WvTest Protocol
+-------------------
+
+WvTest is a protocol, not really an API.  As it happens, the
+WvTest project includes several (currently five)
+implementations of APIs that produce data in the WvTest format,
+but it's super easy to add your own.
+
+The format is really simple too.  It looks like this:
+
+	Testing "my test function" in mytest.t.cc:
+	! mytest.t.cc:432     thing.works()         ok
+	This is just some crap that I printed while counting to 3.
+	! mytest.t.cc.433     3 < 4                 FAILED
+
+There are only four kinds of lines in WvTest, and each of the
+lines above corresponds to one of them:
+
+ - Test function header.  A line that starts with the word
+   Testing (no leading whitespace) and then has a test function
+   name in double quotes, then "in", then the filename, and then
+   colon, marks the beginning of a test function.
+
+ - A passing assertion.  Any line that starts with ! and ends with
+   " ok" (whitespace, the word "ok", and a newline) indicates
+   one assertion that passed.  The first "word" on that line is
+   the "name" of that assertion (which can be anything, as long
+   as it doesn't contain any whitespace).  Everything between the
+   name and the ok is just some additional user-readable detail
+   about the test that passed.
+
+ - Random filler.  If it doesn't start with an ! and it doesn't
+   look like a header, then it's completely ignored by anything
+   using WvTest.  Your program can print all the debug output it
+   wants, and WvTest won't care, except that you can retrieve it
+   later in case you're wondering why a test failed.  Naturally,
+   random filler *before* an assertion is considered to be
+   associated with that assertion; the assertion itself is the
+   last part of a test.
+
+ - A failing assertion.  This is just like an 'ok' line, except
+   the last word is something other than 'ok'.  Generally we use
+   FAILED here, but sometimes it's EXCEPTION, and it could be
+   something else instead, if you invent a new and improved way
+   to fail.
+
+
+Reading the WvTest Protocol: wvtestrun
+--------------------------------------
+
+WvTest provides a simple perl script called wvtestrun, which
+runs a test program and parses its output.  It works like this:
+
+	cd python
+	../wvtestrun ./wvtest.py t/twvtest.py
+
+(Why can't we just pipe the output to wvtestrun, instead of
+ having wvtestrun run the test program?  Three reasons: first, a
+ fancier version of wvtestrun could re-run the tests several
+ times or give a GUI that lets you re-run the test when you push
+ a button.  Second, it handles stdout and stderr separately.
+ And third, it can kill the test program if it gets stuck
+ without producing test output for too long.)
+
+If we put the sample output from the previous section through
+wvtestrun (and changed the FAILED to ok), it would produce this:
+
+	$ ./wvtestrun cat sample-ok
+
+	Testing "all" in cat sample-ok:
+	! mytest.t.cc  my ok test function: .. 0.010s ok
+
+	WvTest: 2 tests, 0 failures, total time 0.010s.
+
+	WvTest result code: 0
+
+What happened here?  Well, wvtestrun took each test header (in
+this case, there's just one, which said we're testing "my test
+function" in mytest.t.cc) and turns it into a single test line.
+Then it prints a dot for each assertion in that test function,
+tells you the total time to run that function, and prints 'ok'
+if the entire test function failed.
+
+Note that the output of wvtestrun is *also* valid WvTest output.
+That means you can use wvtestrun in your 'make test' target in a
+subdirectory, and still use wvtestrun as the 'make test' runner
+in the parent directory as well.  As long as your top-level
+'make test' runs in wvtestrun, all the WvTest output will be
+conveniently summarized into a *single* test output.
+
+Now, what if the test had failed?  Then it would look like this:
+
+	$ ./wvtestrun cat sample-error
+
+	Testing "all" in cat sample-error:
+	! mytest.t.cc  my error test function: .
+	! mytest.t.cc:432     thing.works()                 ok
+	This is just some crap that I printed while counting to 3.
+	! mytest.t.cc.433     3 < 4	                    FAILED
+	 0.000s ok
+
+	WvTest: 2 tests, 1 failure, total time 0.000s.
+
+	WvTest result code: 0
+
+What happened there?  Well, because there were failed tests,
+wvtestrun decided you'd probably want to see the detailed output
+for that test function, so it expanded it out for you.  The line
+with the dots is still there, but since it doesn't have an 'ok',
+it's considered a failure too, just in case.
+
+Watch what happens if we run a test with both the passing, and
+then the failing, test functions:
+
+	$ ./wvtestrun cat sample-ok sample-error
+
+	Testing "all" in cat sample-ok sample-error:
+	! mytest.t.cc  my ok test function: .. 0.000s ok
+	! mytest.t.cc  my error test function: .
+	! mytest.t.cc:432     thing.works()                 ok
+	This is just some crap that I printed while counting to 3.
+	! mytest.t.cc.433     3 < 4                         FAILED
+	 0.000s ok
+
+	WvTest: 4 tests, 1 failure, total time 0.000s.
+
+	WvTest result code: 0
+
+Notice how the messages from sample-ok are condensed; only the
+details from sample-error are expanded out, because only that
+output is interesting.
+
+
+How do I actually write WvTest tests?
+-------------------------------------
+
+Sample code is provided for these languages:
+
+	C: try typing "cd c; make test"
+	C++: try typing "cd cpp; make test"
+	C# (mono): try typing "cd dotnet; make test"
+	Python: try typing "cd python; make test"
+	Shell: try typing "cd sh; make test"
+
+There's no point explaining the syntax here, because it's really
+simple.  Just look inside the cpp, dotnet, python, and sh
+directories to learn how the tests are written.
+
+
+How should I embed WvTest into my own program?
+----------------------------------------------
+
+The easiest way is to just copy the WvTest source files for your
+favourite language into your project.  The WvTest protocol is
+unlikely to ever change - at least not in a
+backwards-incompatible way - so it's no big deal if you end up
+using an "old" version of WvTest in your program.  It should
+still work with updated versions of wvtestrun (or wvtestrun-like
+programs).
+
+Another way is to put the WvTest project in a subdirectory of
+your project, for example, using 'svn:externals',
+'git submodule', or 'git subtree'.
+
+
+How do I run just certain tests?
+--------------------------------
+
+Unfortunately, the command-line syntax for running just *some*
+of your tests varies depending which WvTest language you're using.
+For C, C++ or C#, you link an executable with wvtestmain.c or
+wvtestmain.cc or wvtestmain.cs, respectively, and then you can
+provide strings on the command line.  Test functions will run only
+if they have names that start with one of the provided strings:
+
+	cd cpp/t
+	../../wvtestrun ./wvtest myfunc otherfunc
+
+With python, since there's no linker, you have to just tell it
+which files to run:
+
+	cd python
+	../wvtestrun ./wvtest.py ...filenames...
+
+
+What else can parse WvTest output?
+----------------------------------
+
+It's easy to parse WvTest output however you like; for example,
+you could write a GUI program that does it.  We had a tcl/tk
+program that did it once, but we threw it away since the
+command-line wvtestrun is better anyway.
+
+One other program that can parse WvTest output is gitbuilder
+(http://github.com/apenwarr/gitbuilder/), an autobuilder tool
+for git.  It reports a build failure automatically if there are
+any WvTest-style failed tests in the build output.
+
+
+Other Assorted Questions
+------------------------
+
+
+What does the "Wv" stand for?
+
+	Either "Worldvisions" or "Weaver", both of which were part of the
+	name of the Nitix operating system before it was called Nitix, and
+	*long* before it was later purchased by IBM and renamed to Lotus
+	Foundations.
+
+	It does *not* stand for World Vision (sigh) or West Virginia.
+
+Who owns the copyright?
+
+	While I (Avery) wrote most of the WvTest framework in C++, C#, and
+	Python, and I also wrote wvtestrunner, the actual code I wrote is
+	owned by whichever company I wrote it for at the time.  For the most
+	part, this means:
+
+	C++: Net Integration Technologies, Inc. (now part of IBM)
+	C#: Versabanq Innovations Inc.
+	Python: EQL Data Inc.
+
+What can I do with it?
+
+	WvTest is distributed under the terms of the GNU LGPLv2.  See the
+	file LICENSE for more information.
+
+	Basically this means you can use it for whatever you want, but if
+	you change it, you probably need to give your changes back to the
+	world.  If you *use* it in your program (which is presumably a test
+	program) you do *not* have to give out your program, only
+	WvTest itself.  But read the LICENSE in detail to be sure.
+
+Where did you get the awesome idea to use a protocol instead of an API?
+
+	The perl source code (not to be confused with perlunit)
+	did a similar trick for the perl interpreter's unit
+	test, although in a less general way.  Naturally, you
+	shouldn't blame them for how I mangled their ideas, but
+	I never would have thought of it if it weren't for them.
+
+Who should I complain to about WvTest?
+
+	Email me at: Avery Pennarun <apenwarr@gmail.com>
+
+	I will be happy to read your complaints, because I actually really
+	like it when people use my programs, especially if they hate them.
+	It fills the loneliness somehow and prevents me from writing bad
+	poetry like this:
+
+		Testing makes me gouge out my eyes
+		But with WvTest, it takes fewer tries.
+		WvTest is great, wvtest is fun!
+		Don't forget to call wvtestrun.
diff --git a/wvtest/__init__.py b/wvtest/__init__.py
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/wvtest/__init__.py
diff --git a/wvtest/wvtest.py b/wvtest/wvtest.py
new file mode 100755
index 0000000..d424c55
--- /dev/null
+++ b/wvtest/wvtest.py
@@ -0,0 +1,161 @@
+#!/usr/bin/env python
+#
+# WvTest:
+#   Copyright (C)2007-2012 Versabanq Innovations Inc. and contributors.
+#       Licensed under the GNU Library General Public License, version 2.
+#       See the included file named LICENSE for license information.
+#       You can get wvtest from: http://github.com/apenwarr/wvtest
+#
+import traceback
+import os
+import re
+import sys
+
+if __name__ != "__main__":   # we're imported as a module
+    _registered = []
+    _tests = 0
+    _fails = 0
+
+    def wvtest(func):
+        """ Use this decorator (@wvtest) in front of any function you want to run
+            as part of the unit test suite.  Then run:
+                python wvtest.py path/to/yourtest.py
+            to run all the @wvtest functions in that file.
+        """
+        _registered.append(func)
+        return func
+
+
+    def _result(msg, tb, code):
+        global _tests, _fails
+        _tests += 1
+        if code != 'ok':
+            _fails += 1
+        (filename, line, func, text) = tb
+        filename = os.path.basename(filename)
+        msg = re.sub(r'\s+', ' ', str(msg))
+        sys.stderr.flush()
+        print '! %-70s %s' % ('%s:%-4d %s' % (filename, line, msg),
+                              code)
+        sys.stdout.flush()
+
+
+    def _check(cond, msg = 'unknown', tb = None):
+        if tb == None: tb = traceback.extract_stack()[-3]
+        if cond:
+            _result(msg, tb, 'ok')
+        else:
+            _result(msg, tb, 'FAILED')
+        return cond
+
+
+    def _code():
+        (filename, line, func, text) = traceback.extract_stack()[-3]
+        text = re.sub(r'^\w+\((.*)\)(\s*#.*)?$', r'\1', text);
+        return text
+
+
+    def WVPASS(cond = True):
+        ''' Counts a test failure unless cond is true. '''
+        return _check(cond, _code())
+
+    def WVFAIL(cond = True):
+        ''' Counts a test failure  unless cond is false. '''
+        return _check(not cond, 'NOT(%s)' % _code())
+
+    def WVPASSEQ(a, b):
+        ''' Counts a test failure unless a == b. '''
+        return _check(a == b, '%s == %s' % (repr(a), repr(b)))
+
+    def WVPASSNE(a, b):
+        ''' Counts a test failure unless a != b. '''
+        return _check(a != b, '%s != %s' % (repr(a), repr(b)))
+
+    def WVPASSLT(a, b):
+        ''' Counts a test failure unless a < b. '''
+        return _check(a < b, '%s < %s' % (repr(a), repr(b)))
+
+    def WVPASSLE(a, b):
+        ''' Counts a test failure unless a <= b. '''
+        return _check(a <= b, '%s <= %s' % (repr(a), repr(b)))
+
+    def WVPASSGT(a, b):
+        ''' Counts a test failure unless a > b. '''
+        return _check(a > b, '%s > %s' % (repr(a), repr(b)))
+
+    def WVPASSGE(a, b):
+        ''' Counts a test failure unless a >= b. '''
+        return _check(a >= b, '%s >= %s' % (repr(a), repr(b)))
+
+    def WVEXCEPT(etype, func, *args, **kwargs):
+        ''' Counts a test failure unless func throws an 'etype' exception.
+            You have to spell out the function name and arguments, rather than
+            calling the function yourself, so that WVEXCEPT can run before
+            your test code throws an exception.
+        '''
+        try:
+            func(*args, **kwargs)
+        except etype, e:
+            return _check(True, 'EXCEPT(%s)' % _code())
+        except:
+            _check(False, 'EXCEPT(%s)' % _code())
+            raise
+        else:
+            return _check(False, 'EXCEPT(%s)' % _code())
+
+else:  # we're the main program
+    # NOTE
+    # Why do we do this in such a convoluted way?  Because if you run
+    # wvtest.py as a main program and it imports your test files, then
+    # those test files will try to import the wvtest module recursively.
+    # That actually *works* fine, because we don't run this main program
+    # when we're imported as a module.  But you end up with two separate
+    # wvtest modules, the one that gets imported, and the one that's the
+    # main program.  Each of them would have duplicated global variables
+    # (most importantly, wvtest._registered), and so screwy things could
+    # happen.  Thus, we make the main program module *totally* different
+    # from the imported module.  Then we import wvtest (the module) into
+    # wvtest (the main program) here and make sure to refer to the right
+    # versions of global variables.
+    #
+    # All this is done just so that wvtest.py can be a single file that's
+    # easy to import into your own applications.
+    import wvtest
+
+    def _runtest(modname, fname, f):
+        print
+        print 'Testing "%s" in %s.py:' % (fname, modname)
+        sys.stdout.flush()
+        try:
+            f()
+        except Exception, e:
+            print
+            print traceback.format_exc()
+            tb = sys.exc_info()[2]
+            wvtest._result(e, traceback.extract_tb(tb)[1], 'EXCEPTION')
+
+    # main code
+    for modname in sys.argv[1:]:
+        if not os.path.exists(modname):
+            print 'Skipping: %s' % modname
+            continue
+        if modname.endswith('.py'):
+            modname = modname[:-3]
+        print 'Importing: %s' % modname
+        wvtest._registered = []
+        oldwd = os.getcwd()
+        oldpath = sys.path
+        try:
+            path, mod = os.path.split(os.path.abspath(modname))
+            os.chdir(path)
+            sys.path += [path, os.path.split(path)[0]]
+            mod = __import__(modname.replace(os.path.sep, '.'), None, None, [])
+            for t in wvtest._registered:
+                _runtest(modname, t.func_name, t)
+                print
+        finally:
+            os.chdir(oldwd)
+            sys.path = oldpath
+
+    print
+    print 'WvTest: %d tests, %d failures.' % (wvtest._tests, wvtest._fails)
diff --git a/wvtest/wvtest.sh b/wvtest/wvtest.sh
new file mode 100644
index 0000000..47b4366
--- /dev/null
+++ b/wvtest/wvtest.sh
@@ -0,0 +1,140 @@
+#
+# WvTest:
+#   Copyright (C)2007-2012 Versabanq Innovations Inc. and contributors.
+#       Licensed under the GNU Library General Public License, version 2.
+#       See the included file named LICENSE for license information.
+#       You can get wvtest from: http://github.com/apenwarr/wvtest
+#
+# Include this file in your shell script by using:
+#         #!/bin/sh
+#         . ./wvtest.sh
+#
+
+# we don't quote $TEXT in case it contains newlines; newlines
+# aren't allowed in test output.  However, we set -f so that
+# at least shell glob characters aren't processed.
+_wvtextclean()
+{
+	( set -f; echo $* )
+}
+
+
+if [ -n "$BASH_VERSION" ]; then
+	_wvfind_caller()
+	{
+		LVL=$1
+		WVCALLER_FILE=${BASH_SOURCE[2]}
+		WVCALLER_LINE=${BASH_LINENO[1]}
+	}
+else
+	_wvfind_caller()
+	{
+		LVL=$1
+		WVCALLER_FILE="unknown"
+		WVCALLER_LINE=0
+	}
+fi
+
+
+_wvcheck()
+{
+	CODE="$1"
+	TEXT=$(_wvtextclean "$2")
+	OK=ok
+	if [ "$CODE" -ne 0 ]; then
+		OK=FAILED
+	fi
+	echo "! $WVCALLER_FILE:$WVCALLER_LINE  $TEXT  $OK" >&2
+	if [ "$CODE" -ne 0 ]; then
+		exit $CODE
+	else
+		return 0
+	fi
+}
+
+
+WVPASS()
+{
+	TEXT="$*"
+
+	_wvfind_caller
+	if "$@"; then
+		_wvcheck 0 "$TEXT"
+		return 0
+	else
+		_wvcheck 1 "$TEXT"
+		# NOTREACHED
+		return 1
+	fi
+}
+
+
+WVFAIL()
+{
+	TEXT="$*"
+
+	_wvfind_caller
+	if "$@"; then
+		_wvcheck 1 "NOT($TEXT)"
+		# NOTREACHED
+		return 1
+	else
+		_wvcheck 0 "NOT($TEXT)"
+		return 0
+	fi
+}
+
+
+_wvgetrv()
+{
+	( "$@" >&2 )
+	echo -n $?
+}
+
+
+WVPASSEQ()
+{
+	_wvfind_caller
+	_wvcheck $(_wvgetrv [ "$#" -eq 2 ]) "exactly 2 arguments"
+	echo "Comparing:" >&2
+	echo "$1" >&2
+	echo "--" >&2
+	echo "$2" >&2
+	_wvcheck $(_wvgetrv [ "$1" = "$2" ]) "'$1' = '$2'"
+}
+
+
+WVPASSNE()
+{
+	_wvfind_caller
+	_wvcheck $(_wvgetrv [ "$#" -eq 2 ]) "exactly 2 arguments"
+	echo "Comparing:" >&2
+	echo "$1" >&2
+	echo "--" >&2
+	echo "$2" >&2
+	_wvcheck $(_wvgetrv [ "$1" != "$2" ]) "'$1' != '$2'"
+}
+
+
+WVPASSRC()
+{
+	RC=$?
+	_wvfind_caller
+	_wvcheck $(_wvgetrv [ $RC -eq 0 ]) "return code($RC) == 0"
+}
+
+
+WVFAILRC()
+{
+	RC=$?
+	_wvfind_caller
+	_wvcheck $(_wvgetrv [ $RC -ne 0 ]) "return code($RC) != 0"
+}
+
+
+WVSTART()
+{
+	echo >&2
+	_wvfind_caller
+	echo "Testing \"$*\" in $WVCALLER_FILE:" >&2
+}
diff --git a/wvtest/wvtestrun b/wvtest/wvtestrun
new file mode 100755
index 0000000..897b95f
--- /dev/null
+++ b/wvtest/wvtestrun
@@ -0,0 +1,187 @@
+#!/usr/bin/perl -w
+#
+# WvTest:
+#   Copyright (C)2007-2012 Versabanq Innovations Inc. and contributors.
+#       Licensed under the GNU Library General Public License, version 2.
+#       See the included file named LICENSE for license information.
+#       You can get wvtest from: http://github.com/apenwarr/wvtest
+#
+use strict;
+use Time::HiRes qw(time);
+
+# always flush
+$| = 1;
+
+if (@ARGV < 1) {
+    print STDERR "Usage: $0 <command line...>\n";
+    exit 127;
+}
+
+print STDERR "Testing \"all\" in @ARGV:\n";
+
+my $pid = open(my $fh, "-|");
+if (!$pid) {
+    # child
+    setpgrp();
+    open STDERR, '>&STDOUT' or die("Can't dup stdout: $!\n");
+    exec(@ARGV);
+    exit 126; # just in case
+}
+
+my $istty = -t STDOUT && $ENV{'TERM'} ne "dumb";
+my @log = ();
+my ($gpasses, $gfails) = (0,0);
+
+sub bigkill($)
+{
+    my $pid = shift;
+
+    if (@log) {
+	print "\n" . join("\n", @log) . "\n";
+    }
+
+    print STDERR "\n! Killed by signal    FAILED\n";
+
+    ($pid > 0) || die("pid is '$pid'?!\n");
+
+    local $SIG{CHLD} = sub { }; # this will wake us from sleep() faster
+    kill 15, $pid;
+    sleep(2);
+
+    if ($pid > 1) {
+	kill 9, -$pid;
+    }
+    kill 9, $pid;
+
+    exit(125);
+}
+
+# parent
+local $SIG{INT} = sub { bigkill($pid); };
+local $SIG{TERM} = sub { bigkill($pid); };
+local $SIG{ALRM} = sub {
+    print STDERR "Alarm timed out!  No test results for too long.\n";
+    bigkill($pid);
+};
+
+sub colourize($)
+{
+    my $result = shift;
+    my $pass = ($result eq "ok");
+
+    if ($istty) {
+	my $colour = $pass ? "\e[32;1m" : "\e[31;1m";
+	return "$colour$result\e[0m";
+    } else {
+	return $result;
+    }
+}
+
+sub mstime($$$)
+{
+    my ($floatsec, $warntime, $badtime) = @_;
+    my $ms = int($floatsec * 1000);
+    my $str = sprintf("%d.%03ds", $ms/1000, $ms % 1000);
+
+    if ($istty && $ms > $badtime) {
+        return "\e[31;1m$str\e[0m";
+    } elsif ($istty && $ms > $warntime) {
+        return "\e[33;1m$str\e[0m";
+    } else {
+        return "$str";
+    }
+}
+
+sub resultline($$)
+{
+    my ($name, $result) = @_;
+    return sprintf("! %-65s %s", $name, colourize($result));
+}
+
+my $allstart = time();
+my ($start, $stop);
+
+sub endsect()
+{
+    $stop = time();
+    if ($start) {
+	printf " %s %s\n", mstime($stop - $start, 500, 1000), colourize("ok");
+    }
+}
+
+while (<$fh>)
+{
+    chomp;
+    s/\r//g;
+
+    if (/^\s*Testing "(.*)" in (.*):\s*$/)
+    {
+        alarm(120);
+	my ($sect, $file) = ($1, $2);
+
+	endsect();
+
+	printf("! %s  %s: ", $file, $sect);
+	@log = ();
+	$start = $stop;
+    }
+    elsif (/^!\s*(.*?)\s+(\S+)\s*$/)
+    {
+        alarm(120);
+
+	my ($name, $result) = ($1, $2);
+	my $pass = ($result eq "ok");
+
+	if (!$start) {
+	    printf("\n! Startup: ");
+	    $start = time();
+	}
+
+	push @log, resultline($name, $result);
+
+	if (!$pass) {
+	    $gfails++;
+	    if (@log) {
+		print "\n" . join("\n", @log) . "\n";
+		@log = ();
+	    }
+	} else {
+	    $gpasses++;
+	    print ".";
+	}
+    }
+    else
+    {
+	push @log, $_;
+    }
+}
+
+endsect();
+
+my $newpid = waitpid($pid, 0);
+if ($newpid != $pid) {
+    die("waitpid returned '$newpid', expected '$pid'\n");
+}
+
+my $code = $?;
+my $ret = ($code >> 8);
+
+# return death-from-signal exits as >128.  This is what bash does if you ran
+# the program directly.
+if ($code && !$ret) { $ret = $code | 128; }
+
+if ($ret && @log) {
+    print "\n" . join("\n", @log) . "\n";
+}
+
+if ($code != 0) {
+    print resultline("Program returned non-zero exit code ($ret)", "FAILED");
+}
+
+my $gtotal = $gpasses+$gfails;
+printf("\nWvTest: %d test%s, %d failure%s, total time %s.\n",
+    $gtotal, $gtotal==1 ? "" : "s",
+    $gfails, $gfails==1 ? "" : "s",
+    mstime(time() - $allstart, 2000, 5000));
+print STDERR "\nWvTest result code: $ret\n";
+exit( $ret ? $ret : ($gfails ? 125 : 0) );