1 files changed, 61 insertions, 0 deletions
diff --git a/src/boost/tools/build/test/param.py b/src/boost/tools/build/test/param.py
new file mode 100644
index 000000000..feba794e1
--- /dev/null
+++ b/src/boost/tools/build/test/param.py
@@ -0,0 +1,61 @@
+#!/usr/bin/python
+
+# Copyright 2018 Steven Watanabe
+# Distributed under the Boost Software License, Version 1.0.
+# (See accompanying file LICENSE.txt or copy at
+# https://www.bfgroup.xyz/b2/LICENSE.txt)
+
+import BoostBuild
+
+t = BoostBuild.Tester(pass_toolset=0)
+
+t.write("Jamroot.jam", """\
+import param ;
+import assert ;
+import errors : try catch ;
+rule test1 ( )
+{
+    param.handle-named-params ;
+}
+test1 ;
+rule test2 ( sources * )
+{
+    param.handle-named-params sources ;
+    return $(sources) ;
+}
+assert.result : test2 ;
+assert.result test1.cpp test2.cpp : test2 test1.cpp test2.cpp ;
+assert.result test1.cpp test2.cpp : test2 sources test1.cpp test2.cpp ;
+rule test3 ( sources * : requirements * )
+{
+    param.handle-named-params sources requirements ;
+    return $(sources) -- $(requirements) ;
+}
+assert.result -- : test3 ;
+assert.result -- <link>shared : test3 : <link>shared ;
+assert.result test1.cpp -- <link>shared : test3 test1.cpp : <link>shared ;
+assert.result test1.cpp -- <link>shared
+  : test3 test1.cpp : requirements <link>shared ;
+assert.result test1.cpp -- <link>shared
+  : test3 sources test1.cpp : requirements <link>shared ;
+assert.result test1.cpp -- <link>shared
+  : test3 requirements <link>shared : sources test1.cpp ;
+assert.result -- : test3 sources ;
+assert.result -- : test3 requirements ;
+assert.result -- <link>shared : test3 requirements <link>shared ;
+try ;
+{
+    test3 sources test1.cpp : sources test2.cpp ;
+}
+catch Parameter 'sources' passed more than once. ;
+try ;
+{
+    test3 sources test1.cpp : <link>shared ;
+}
+catch "Positional arguments must appear first." ;
+EXIT : 0 ;
+""")
+
+t.run_build_system()
+
+t.cleanup()