# HG changeset patch
# User Doug Simon <doug.simon@oracle.com>
# Date 1365709252 -7200
# Node ID 08a16c26907f211e934dbde10d3ad4d423c3822a
# Parent  1eb16dbb31a7a564a870eecdb86a626613aee340
MX_TESTFILE environment variable can be used to specify (and preserve) the test list file used by 'mx unittest'.
This is useful when wanting to run the command under gdb.

diff -r 1eb16dbb31a7 -r 08a16c26907f mx/commands.py
--- a/mx/commands.py	Thu Apr 11 21:38:09 2013 +0200
+++ b/mx/commands.py	Thu Apr 11 21:40:52 2013 +0200
@@ -777,7 +777,9 @@
     name = 'JUnitWrapper'
     javaSource = join(mxdir, name + '.java')
     javaClass = join(mxdir, name + '.class')
-    (_, testfile) = tempfile.mkstemp(".testclasses", "graal")
+    testfile = os.environ.get('MX_TESTFILE', None)
+    if testfile is None:
+        (_, testfile) = tempfile.mkstemp(".testclasses", "graal")
 
     def harness(projectscp, vmArgs):
         if not exists(javaClass) or getmtime(javaClass) < getmtime(javaSource):
@@ -791,7 +793,8 @@
     try:
         _run_tests(args, harness, annotations, testfile)
     finally:
-        os.remove(testfile)
+        if os.environ.get('MX_TESTFILE') is None:
+            os.remove(testfile)
 
 def unittest(args):
     """run the JUnit tests (all testcases)