added boilerplate
diff --git a/tests/datagencli.c b/tests/datagencli.c
index c4fa7f7..772e3dc 100644
--- a/tests/datagencli.c
+++ b/tests/datagencli.c
@@ -1,28 +1,12 @@
-/*
-    datagencli.c
-    compressible data command line generator
-    Copyright (C) Yann Collet 2012-2015
+/**
+ * Copyright (c) 2016-present, Yann Collet, Facebook, Inc.
+ * All rights reserved.
+ *
+ * This source code is licensed under the BSD-style license found in the
+ * LICENSE file in the root directory of this source tree. An additional grant
+ * of patent rights can be found in the PATENTS file in the same directory.
+ */
 
-    GPL v2 License
-
-    This program is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License along
-    with this program; if not, write to the Free Software Foundation, Inc.,
-    51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
-
-    You can contact the author at :
-   - ZSTD source repository : https://github.com/Cyan4973/zstd
-   - Public forum : https://groups.google.com/forum/#!forum/lz4c
-*/
 
 /*-************************************
 *  Includes
diff --git a/tests/fullbench.c b/tests/fullbench.c
index f6852f6..eaf1fc7 100644
--- a/tests/fullbench.c
+++ b/tests/fullbench.c
@@ -1,26 +1,12 @@
-/*
-    fullbench.c - Detailed bench program for zstd
-    Copyright (C) Yann Collet 2014-2016
+/**
+ * Copyright (c) 2016-present, Yann Collet, Facebook, Inc.
+ * All rights reserved.
+ *
+ * This source code is licensed under the BSD-style license found in the
+ * LICENSE file in the root directory of this source tree. An additional grant
+ * of patent rights can be found in the PATENTS file in the same directory.
+ */
 
-    GPL v2 License
-
-    This program is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License along
-    with this program; if not, write to the Free Software Foundation, Inc.,
-    51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
-
-    You can contact the author at :
-    - zstd homepage : http://www.zstd.net
-*/
 
 /*_************************************
 *  Includes
diff --git a/tests/fuzzer.c b/tests/fuzzer.c
index bed86f5..18948b9 100644
--- a/tests/fuzzer.c
+++ b/tests/fuzzer.c
@@ -1,26 +1,12 @@
-/*
-    Fuzzer test tool for zstd
-    Copyright (C) Yann Collet 2014-2016
+/**
+ * Copyright (c) 2016-present, Yann Collet, Facebook, Inc.
+ * All rights reserved.
+ *
+ * This source code is licensed under the BSD-style license found in the
+ * LICENSE file in the root directory of this source tree. An additional grant
+ * of patent rights can be found in the PATENTS file in the same directory.
+ */
 
-    GPL v2 License
-
-    This program is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License along
-    with this program; if not, write to the Free Software Foundation, Inc.,
-    51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
-
-    You can contact the author at :
-    - ZSTD homepage : http://www.zstd.net
-*/
 
 /*-************************************
 *  Compiler specific
diff --git a/tests/namespaceTest.c b/tests/namespaceTest.c
index 49d9b36..dd63186 100644
--- a/tests/namespaceTest.c
+++ b/tests/namespaceTest.c
@@ -1,27 +1,12 @@
-/* ##########################################################################
-# namespaceTest
-# ensure xxhash namespace emulation is properly triggered
-# Copyright (C) Yann Collet 2016
-#
-# GPL v2 License
-#
-# This program is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation; either version 2 of the License, or
-# (at your option) any later version.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License along
-# with this program; if not, write to the Free Software Foundation, Inc.,
-# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
-#
-# You can contact the author at :
-#  - zstd homepage : http://www.zstd.net/
-# ########################################################################*/
+/**
+ * Copyright (c) 2016-present, Yann Collet, Facebook, Inc.
+ * All rights reserved.
+ *
+ * This source code is licensed under the BSD-style license found in the
+ * LICENSE file in the root directory of this source tree. An additional grant
+ * of patent rights can be found in the PATENTS file in the same directory.
+ */
+
 
 
 #include <stddef.h>  /* size_t */
diff --git a/tests/paramgrill.c b/tests/paramgrill.c
index 9348a40..f253fa3 100644
--- a/tests/paramgrill.c
+++ b/tests/paramgrill.c
@@ -1,26 +1,11 @@
-/*
-    paramgrill.c - parameter tester for zstd
-    Copyright (C) Yann Collet 2015-2016
-
-    GPL v2 License
-
-    This program is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License along
-    with this program; if not, write to the Free Software Foundation, Inc.,
-    51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
-
-    You can contact the author at :
-    - zstd homepage : http://www.zstd.net/
-*/
+/**
+ * Copyright (c) 2016-present, Yann Collet, Facebook, Inc.
+ * All rights reserved.
+ *
+ * This source code is licensed under the BSD-style license found in the
+ * LICENSE file in the root directory of this source tree. An additional grant
+ * of patent rights can be found in the PATENTS file in the same directory.
+ */
 
 
 /*-************************************
diff --git a/tests/roundTripCrash.c b/tests/roundTripCrash.c
index d5b673f..a296d41 100644
--- a/tests/roundTripCrash.c
+++ b/tests/roundTripCrash.c
@@ -1,26 +1,12 @@
-/*
-  roundTripCrash
-  Copyright (C) Yann Collet 2013-2016
+/**
+ * Copyright (c) 2016-present, Yann Collet, Facebook, Inc.
+ * All rights reserved.
+ *
+ * This source code is licensed under the BSD-style license found in the
+ * LICENSE file in the root directory of this source tree. An additional grant
+ * of patent rights can be found in the PATENTS file in the same directory.
+ */
 
-  GPL v2 License
-
-  This program is free software; you can redistribute it and/or modify
-  it under the terms of the GNU General Public License as published by
-  the Free Software Foundation; either version 2 of the License, or
-  (at your option) any later version.
-
-  This program is distributed in the hope that it will be useful,
-  but WITHOUT ANY WARRANTY; without even the implied warranty of
-  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-  GNU General Public License for more details.
-
-  You should have received a copy of the GNU General Public License along
-  with this program; if not, write to the Free Software Foundation, Inc.,
-  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
-
-  You can contact the author at :
-  - zstd homepage : http://www.zstd.net
-*/
 /*
   This program takes a file in input,
   performs a zstd round-trip test (compression - decompress)
diff --git a/tests/test-zstd-speed.py b/tests/test-zstd-speed.py
index dba4f85..45cfe86 100755
--- a/tests/test-zstd-speed.py
+++ b/tests/test-zstd-speed.py
@@ -1,5 +1,14 @@
 #! /usr/bin/env python
 
+#
+# Copyright (c) 2016-present, Yann Collet, Facebook, Inc.
+# All rights reserved.
+#
+# This source code is licensed under the BSD-style license found in the
+# LICENSE file in the root directory of this source tree. An additional grant
+# of patent rights can be found in the PATENTS file in the same directory.
+#
+
 import argparse
 import os
 import string
diff --git a/tests/test-zstd-versions.py b/tests/test-zstd-versions.py
index a0a179c..5a24bc4 100755
--- a/tests/test-zstd-versions.py
+++ b/tests/test-zstd-versions.py
@@ -1,7 +1,14 @@
 #!/usr/bin/env python3
 """Test zstd interoperability between versions"""
-# Copyright Yann Collet, Przemyslaw Skibinski and Takayuki Matsuoka
-# License GPLv2
+
+#
+# Copyright (c) 2016-present, Yann Collet, Facebook, Inc.
+# All rights reserved.
+#
+# This source code is licensed under the BSD-style license found in the
+# LICENSE file in the root directory of this source tree. An additional grant
+# of patent rights can be found in the PATENTS file in the same directory.
+#
 
 import filecmp
 import glob
diff --git a/tests/zbufftest.c b/tests/zbufftest.c
index 563a5c9..5289799 100644
--- a/tests/zbufftest.c
+++ b/tests/zbufftest.c
@@ -1,26 +1,12 @@
-/*
-    Fuzzer test tool for ZBUFF - a buffered streaming API for ZSTD
-    Copyright (C) Yann Collet 2015-2016
+/**
+ * Copyright (c) 2016-present, Yann Collet, Facebook, Inc.
+ * All rights reserved.
+ *
+ * This source code is licensed under the BSD-style license found in the
+ * LICENSE file in the root directory of this source tree. An additional grant
+ * of patent rights can be found in the PATENTS file in the same directory.
+ */
 
-    GPL v2 License
-
-    This program is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License along
-    with this program; if not, write to the Free Software Foundation, Inc.,
-    51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
-
-    You can contact the author at :
-    - ZSTD homepage : https://www.zstd.net/
-*/
 
 /*-************************************
 *  Compiler specific
diff --git a/tests/zstreamtest.c b/tests/zstreamtest.c
index dd00864..f021974 100644
--- a/tests/zstreamtest.c
+++ b/tests/zstreamtest.c
@@ -1,26 +1,12 @@
-/*
-    Fuzzer test tool for zstd streaming API
-    Copyright (C) Yann Collet 2016
+/**
+ * Copyright (c) 2016-present, Yann Collet, Facebook, Inc.
+ * All rights reserved.
+ *
+ * This source code is licensed under the BSD-style license found in the
+ * LICENSE file in the root directory of this source tree. An additional grant
+ * of patent rights can be found in the PATENTS file in the same directory.
+ */
 
-    GPL v2 License
-
-    This program is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License along
-    with this program; if not, write to the Free Software Foundation, Inc.,
-    51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
-
-    You can contact the author at :
-    - ZSTD homepage : https://www.zstd.net/
-*/
 
 /*-************************************
 *  Compiler specific