diff --git a/run_tests.py b/run_tests.py
new file mode 100755
index 000000000..7a86711f1
--- /dev/null
+++ b/run_tests.py
@@ -0,0 +1,44 @@
+#!/usr/bin/python3 -tt
+
+# Copyright 2012 Jussi Pakkanen
+
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+
+#     http://www.apache.org/licenses/LICENSE-2.0
+
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+from glob import glob
+import os, subprocess, shutil
+
+test_build_dir = 'test build area'
+builder_command = './runbuilder.py'
+
+def run_test(testdir):
+    shutil.rmtree(test_build_dir)
+    os.mkdir(test_build_dir)
+    print('Running test: ' + testdir)
+    p = subprocess.Popen([builder_command, testdir, test_build_dir])
+    p.wait()
+    if p.returncode != 0:
+        raise RuntimeError('Test failed.')
+
+def run_tests():
+    tests = glob('test cases/*')
+    tests.sort()
+    try:
+        os.mkdir(test_build_dir)
+    except OSError:
+        pass
+    [run_test(t) for t in tests]
+
+
+if __name__ == '__main__':
+    os.chdir(os.path.split(__file__)[0])
+    run_tests()
diff --git a/test cases/1 trivial/builder.txt b/test cases/1 trivial/builder.txt
new file mode 100644
index 000000000..e69de29bb