Add test to illustrate METAL bug

lib/python/TAL/tests/input/test_metal1.html

+<span metal:define-macro="OUTER">
+  AAA
+  <span metal:define-macro="INNER">INNER</span>
+  BBB
+</span>
+
+<xxx metal:use-macro="OUTER">
+</xxx>
+
+<xxx metal:use-macro="INNER">
+</xxx>
+
+<span metal:define-macro="OUTER2">
+  AAA
+  <xxx metal:define-slot="OUTERSLOT">
+  <span metal:define-macro="INNER2">INNER</span>
+  </xxx>
+  BBB
+</span>
+
+<xxx metal:use-macro="OUTER2">
+</xxx>
+
+<xxx metal:use-macro="INNER2">
+</xxx>
+
+<xxx metal:use-macro="OUTER2">
+  <yyy metal:fill-slot="OUTERSLOT">OUTERSLOT</yyy>
+</xxx>
+
+<span metal:define-macro="OUTER3">
+  AAA
+  <xxx metal:define-slot="OUTERSLOT">
+  <span metal:define-macro="INNER3">INNER
+    <xxx metal:define-slot="INNERSLOT">INNERSLOT</xxx>
+  </span>
+  </xxx>
+  BBB
+</span>
+
+<xxx metal:use-macro="OUTER3">
+</xxx>
+
+<xxx metal:use-macro="OUTER3">
+  <yyy metal:fill-slot="OUTERSLOT">OUTERSLOT</yyy>
+</xxx>
+
+<xxx metal:use-macro="INNER3">
+</xxx>
+
+<xxx metal:use-macro="INNER3">
+  <yyy metal:fill-slot="INNERSLOT">INNERSLOT</yyy>
+</xxx>
+
+

lib/python/TAL/tests/output/test_metal1.html

+<span metal:define-macro="OUTER">
+  AAA
+  <span metal:define-macro="INNER">INNER</span>
+  BBB
+</span>
+
+<span metal:use-macro="OUTER">
+  AAA
+  <span>INNER</span>
+  BBB
+</span>
+
+<span metal:use-macro="INNER">INNER</span>
+
+<span metal:define-macro="OUTER2">
+  AAA
+  <xxx metal:define-slot="OUTERSLOT">
+  <span metal:define-macro="INNER2">INNER</span>
+  </xxx>
+  BBB
+</span>
+
+<span metal:use-macro="OUTER2">
+  AAA
+  <xxx metal:fill-slot="OUTERSLOT">
+  <span metal:use-macro="INNER2">INNER</span>
+  </xxx>
+  BBB
+</span>
+
+<span metal:use-macro="INNER2">INNER</span>
+
+<span metal:use-macro="OUTER2">
+  AAA
+  <yyy metal:fill-slot="OUTERSLOT">OUTERSLOT</yyy>
+  BBB
+</span>
+
+<span metal:define-macro="OUTER3">
+  AAA
+  <xxx metal:define-slot="OUTERSLOT">
+  <span metal:define-macro="INNER3">INNER
+    <xxx metal:define-slot="INNERSLOT">INNERSLOT</xxx>
+  </span>
+  </xxx>
+  BBB
+</span>
+
+<span metal:use-macro="OUTER3">
+  AAA
+  <xxx metal:fill-slot="OUTERSLOT">
+  <span metal:use-macro="INNER3">INNER
+    <xxx metal:fill-slot="INNERSLOT">INNERSLOT</xxx>
+  </span>
+  </xxx>
+  BBB
+</span>
+
+<span metal:use-macro="OUTER3">
+  AAA
+  <yyy metal:fill-slot="OUTERSLOT">OUTERSLOT</yyy>
+  BBB
+</span>
+
+<span metal:use-macro="INNER3">INNER
+    <xxx metal:fill-slot="INNERSLOT">INNERSLOT</xxx>
+  </span>
+
+<span metal:use-macro="INNER3">INNER
+    <yyy metal:fill-slot="INNERSLOT">INNERSLOT</yyy>
+  </span>
+
+

lib/python/TAL/tests/test_files.py

@@ -18,9 +18,13 @@ class FileTestCase(unittest.TestCase):
         unittest.TestCase.__init__(self)
 
     def runTest(self):
-        sys.stdout.write(os.path.basename(self.__file) + " ")
+        basename = os.path.basename(self.__file)
+        sys.stdout.write(basename + " ")
         sys.stdout.flush()
-        sys.argv = ["", "-Q", self.__file]
+        if basename[:10] == 'test_metal':
+            sys.argv = ["", "-Q", "-m", self.__file]
+        else:
+            sys.argv = ["", "-Q", self.__file]
         pwd = os.getcwd()
         try:
             try: