diff --git a/Builds/Test.py b/Builds/Test.py
new file mode 100755
index 0000000000..bb264247f9
--- /dev/null
+++ b/Builds/Test.py
@@ -0,0 +1,180 @@
+#!/usr/bin/env python
+
+#    This file is part of rippled: https://github.com/ripple/rippled
+#    Copyright (c) 2012 - 2015 Ripple Labs Inc.
+#
+#    Permission to use, copy, modify, and/or distribute this software for any
+#    purpose  with  or without fee is hereby granted, provided that the above
+#    copyright notice and this permission notice appear in all copies.
+#
+#    THE  SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+#    WITH  REGARD  TO  THIS  SOFTWARE  INCLUDING  ALL  IMPLIED  WARRANTIES  OF
+#    MERCHANTABILITY  AND  FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+#    ANY  SPECIAL ,  DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+#    WHATSOEVER  RESULTING  FROM  LOSS  OF USE, DATA OR PROFITS, WHETHER IN AN
+#    ACTION  OF  CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+#    OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+"""
+Invocation:
+  ./Builds/Test.py - builds and tests all configurations
+
+#
+# The build must succeed without shell aliases for this to work.
+#
+# Common problems:
+# 1) Boost not found. Solution: export BOOST_ROOT=[path to boost folder]
+# 2) OpenSSL not found. Solution: export OPENSSL_ROOT=[path to OpenSSL folder]
+# 3) scons is an alias. Solution: Create a script named "scons" somewhere in
+#    your $PATH (eg. ~/bin/scons will often work).
+#       #!/bin/sh
+#       python /C/Python27/Scripts/scons.py "${@}"
+"""
+from __future__ import absolute_import, division, print_function, unicode_literals
+
+import argparse
+import itertools
+import os
+import platform
+import re
+import subprocess
+import sys
+
+IS_WINDOWS = platform.system().lower() == 'windows'
+
+if IS_WINDOWS:
+    BINARY_RE = re.compile(r'build\\([^\\]+)\\rippled.exe')
+
+else:
+    BINARY_RE = re.compile(r'build/([^/]+)/rippled')
+
+ALL_TARGETS = ['debug', 'release']
+
+parser = argparse.ArgumentParser(
+    description='Test.py - run ripple tests'
+)
+
+parser.add_argument(
+    '--all', '-a',
+    action='store_true',
+    help='Build all configurations.',
+)
+
+parser.add_argument(
+    '--keep_going', '-k',
+    action='store_true',
+    help='Keep going after one configuration has failed.',
+ )
+
+parser.add_argument(
+    '--silent', '-s',
+    action='store_true',
+    help='Silence all messages except errors',
+ )
+
+parser.add_argument(
+    '--verbose', '-v',
+    action='store_true',
+    help=('Report more information about which commands are executed and the '
+          'results.'),
+ )
+
+parser.add_argument(
+    '--test', '-t',
+    default='',
+    help='Add a prefix for unit tests',
+ )
+
+parser.add_argument(
+    'scons_args',
+    default=(),
+    nargs='*'
+    )
+
+ARGS = parser.parse_args()
+
+def shell(*cmd, **kwds):
+    "Execute a shell command and return the output."
+    silent = kwds.pop('silent', ARGS.silent)
+    verbose = not silent and kwds.pop('verbose', ARGS.verbose)
+    if verbose:
+        print('$', ' '.join(cmd))
+    kwds['shell'] = IS_WINDOWS
+
+    process = subprocess.Popen(
+        cmd,
+        stdin=subprocess.PIPE,
+        stdout=subprocess.PIPE,
+        stderr=subprocess.STDOUT,
+        **kwds)
+    lines = []
+    count = 0
+    for line in process.stdout:
+        lines.append(line)
+        if verbose:
+            print(line, end='')
+        elif not silent:
+            count += 1
+            if count >= 80:
+                print()
+                count = 0
+            else:
+                print('.', end='')
+
+    if not verbose and count:
+        print()
+    process.wait()
+    return process.returncode, lines
+
+if __name__ == '__main__':
+    args = list(ARGS.scons_args)
+    if ARGS.all:
+        for a in ALL_TARGETS:
+            if a not in args:
+                args.append(a)
+    print('Building:', *(args or ['(default)']))
+
+    # Build everything.
+    resultcode, lines = shell('scons', *args)
+    if resultcode:
+        print('Build FAILED:')
+        if not ARGS.verbose:
+            print(*lines, sep='')
+        exit(1)
+
+    # Now extract the executable names and corresponding targets.
+    failed = []
+    _, lines = shell('scons', '-n', '--tree=derived', *args, silent=True)
+    for line in lines:
+        match = BINARY_RE.search(line)
+        if match:
+            executable, target = match.group(0, 1)
+
+            print('Unit tests for', target)
+            testflag = '--unittest'
+            if ARGS.test:
+                testflag += ('=' + ARGS.test)
+
+            resultcode, lines = shell(executable, testflag)
+            if resultcode:
+                print('ERROR:', *lines, sep='')
+                failed.append([target, 'unittest'])
+                if not ARGS.keep_going:
+                    break
+            ARGS.verbose and print(*lines, sep='')
+
+            print('npm tests for', target)
+            resultcode, lines = shell('npm', 'test', '--rippled=' + executable)
+            if resultcode:
+                print('ERROR:\n', *lines, sep='')
+                failed.append([target, 'npm'])
+                if not ARGS.keep_going:
+                    break
+            else:
+                ARGS.verbose and print(*lines, sep='')
+
+    if failed:
+        print('FAILED:', *(':'.join(f) for f in failed))
+        exit(1)
+    else:
+        print('Success')
diff --git a/Builds/test-all.sh b/Builds/test-all.sh
deleted file mode 100755
index 6eccb9a488..0000000000
--- a/Builds/test-all.sh
+++ /dev/null
@@ -1,36 +0,0 @@
-#/bin/sh
-
-#    This file is part of rippled: https://github.com/ripple/rippled
-#    Copyright (c) 2012 - 2015 Ripple Labs Inc.
-#
-#    Permission to use, copy, modify, and/or distribute this software for any
-#    purpose  with  or without fee is hereby granted, provided that the above
-#    copyright notice and this permission notice appear in all copies.
-#
-#    THE  SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
-#    WITH  REGARD  TO  THIS  SOFTWARE  INCLUDING  ALL  IMPLIED  WARRANTIES  OF
-#    MERCHANTABILITY  AND  FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
-#    ANY  SPECIAL ,  DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
-#    WHATSOEVER  RESULTING  FROM  LOSS  OF USE, DATA OR PROFITS, WHETHER IN AN
-#    ACTION  OF  CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
-#    OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
-
-# Invoke as "sh ./Builds/test-all.sh"
-# or first make it executable ("chmod a+rx ./Builds/test-all.sh")
-#   then invoke as "./Builds/test-all.sh"
-#
-# The build must succeed without shell aliases for this to work. 
-#
-# Common problems:
-# 1) Boost not found. Solution: export BOOST_ROOT=[path to boost folder]
-# 2) OpenSSL not found. Solution: export OPENSSL_ROOT=[path to OpenSSL folder]
-# 3) scons is an alias. Solution: Create a script named "scons" somewhere in
-#    your $PATH (eg. ~/bin/scons will often work).
-#       #!/bin/sh
-#       python /C/Python27/Scripts/scons.py "${@}"
-
-BUILD=( "debug" "release" "all" )
-test=$( dirname $0 )
-test="${test}/test-only.sh"
-
-"${test}" "${BUILD[@]}"
diff --git a/Builds/test-only.sh b/Builds/test-only.sh
deleted file mode 100755
index 626697ef49..0000000000
--- a/Builds/test-only.sh
+++ /dev/null
@@ -1,61 +0,0 @@
-#/bin/sh
-
-#    This file is part of rippled: https://github.com/ripple/rippled
-#    Copyright (c) 2012 - 2015 Ripple Labs Inc.
-#
-#    Permission to use, copy, modify, and/or distribute this software for any
-#    purpose  with  or without fee is hereby granted, provided that the above
-#    copyright notice and this permission notice appear in all copies.
-#
-#    THE  SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
-#    WITH  REGARD  TO  THIS  SOFTWARE  INCLUDING  ALL  IMPLIED  WARRANTIES  OF
-#    MERCHANTABILITY  AND  FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
-#    ANY  SPECIAL ,  DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
-#    WHATSOEVER  RESULTING  FROM  LOSS  OF USE, DATA OR PROFITS, WHETHER IN AN
-#    ACTION  OF  CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
-#    OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
-
-# Invoke as "sh ./Builds/test-only [build type(s)]"
-# or first make it executable ("chmod a+rx ./Builds/test-all.sh")
-#   then invoke as "./Builds/test-only [build type(s)]"
-#
-# The build must succeed without shell aliases for this to work. 
-#
-# Common problems:
-# 1) Boost not found. Solution: export BOOST_ROOT=[path to boost folder]
-# 2) OpenSSL not found. Solution: export OPENSSL_ROOT=[path to OpenSSL folder]
-# 3) scons is an alias. Solution: Create a script named "scons" somewhere in
-#    your $PATH (eg. ~/bin/scons will often work).
-#       #!/bin/sh
-#       python /C/Python27/Scripts/scons.py "${@}"
-
-success=""
-scons "${@}" || exit 1 && \
-  for RIPPLED in $( scons --tree=derived "${@}" | grep "^  +-" | sed 's/^  +-//' | sort -u )
-  do
-    RUN=$( echo "${RIPPLED}" | sed 's/\\/\//g' | cut -d/ -f2 )
-    if [ ! -x "${RIPPLED}" ]
-    then
-      echo -e "\n${RIPPLED} is not a build target dir\n"
-      continue
-    fi
-    echo -e "\n\n\nTesting ${RIPPLED}\n\n\n"
-    LOG="unittest.${RUN}.log"
-    "${RIPPLED}" --unittest | tee "${LOG}" && \
-      grep -q "0 failures" "${LOG}" && \
-        rm -v "${LOG}" && \
-          npm test --rippled="${RIPPLED}" \
-            || break
-    success="${success} ${RUN}"
-    RUN=
-  done
-
-if [ -n "${success}" ]
-then
-  echo -e "\nSuccess on ${success}"
-fi
-if [ -n "${RUN}" ]
-then
-  echo -e "\nFailed on ${RUN}" 
-  exit 1
-fi