# HG changeset patch
# User Mads Kiilerich <madski@unity3d.com>
# Date 1393549740 -3600
# Node ID 1d3aa8779efb211ffaa9095349e242f1269878f9
# Parent  e23422941bae4d5322870cb333697d4c3df6bf80
tests: add run-tests --changed option for running tests changed in revisions

Convenient when polishing patches and changing details of how they change test
output.

This will probably break in weird ways for revsets with special quoting ... but
it is good enough for run-tests.

Usage example:
  yes | ./run-tests.py -li --changed qparent

[ original upstream message ]

diff -r e23422941bae -r 1d3aa8779efb tests/run-tests.py
--- a/tests/run-tests.py	Mon Mar 10 17:52:42 2014 -0400
+++ b/tests/run-tests.py	Fri Feb 28 02:09:00 2014 +0100
@@ -141,6 +141,8 @@
         help="skip tests listed in the specified blacklist file")
     parser.add_option("--whitelist", action="append",
         help="always run tests listed in the specified whitelist file")
+    parser.add_option("--changed", type="string",
+        help="run tests that are changed in parent rev or working directory")
     parser.add_option("-C", "--annotate", action="store_true",
         help="output files annotated with coverage")
     parser.add_option("-c", "--cover", action="store_true",
@@ -1181,7 +1183,13 @@
     checktools()
 
     if not args:
-        args = os.listdir(".")
+        if options.changed:
+            proc = Popen4('hg st --rev "%s" -man0 .' % options.changed,
+                          None, 0)
+            stdout, stderr = proc.communicate()
+            args = stdout.strip('\0').split('\0')
+        else:
+            args = os.listdir(".")
 
     tests = [t for t in args
              if t.startswith("test-")