Workaround window manager disrupting test in some cases

framework/core.py

@@ -29,6 +29,7 @@ import re
 import stat
 import subprocess
 import sys
+import time
 import traceback
 
 __all__ = [
@@ -275,6 +276,7 @@ class Environment:
 
 class Test:
 	ignoreErrors = []
+	sleep = 0
 
 	def __init__(self):
 		pass
@@ -305,6 +307,8 @@ class Test:
 			print "    result: %(result)s" % { 'result': result['result'] }
 
 			result.write(env.file,path)
+			if Test.sleep:
+				time.sleep(Test.sleep)
 		else:
 			print "Dry-run: %(path)s" % locals()
 
@@ -345,6 +349,7 @@ class Group(dict):
 class TestProfile:
 	def __init__(self):
 		self.tests = Group()
+		self.sleep = 0
 
 	def run(self, env):
 		self.tests.doRun(env, '')
@@ -356,7 +361,7 @@ class TestProfile:
 def loadTestProfile(filename):
 	try:
 		ns = {
-			'__file__': filename,
+			'__file__': filename
 		}
 		execfile(filename, ns)
 		return ns['profile']

tests/r300.tests

@@ -20,6 +20,12 @@ Test.ignoreErrors.append(re.compile('3D driver claims to not support'))
 # Debug info
 Test.ignoreErrors.append(re.compile('Try R300_SPAN_DISABLE_LOCKING env var if this hangs.'))
 
+# Some window managers can be confusing for some of the tests because they
+# send resize / move events that invalidate frame buffer contents.
+# It would be nice to fix these things in a reliable way, but for now
+# this workaround of waiting between tests helps...
+Test.sleep = 0.2
+
 
 # glean/blendFunc
 #   R300 blending hardware appears to be bad
@@ -32,7 +38,6 @@ env['GLEAN_BLEND_ALPHA_TOLERANCE'] = 2.0
 env = profile.tests['glean']['exactRGBA'].env
 env['GLEAN_EXACTRGBA_ROUNDING'] = 1
 
-
 # Tests specific to r300
 r300 = Group()
 # Apparently, LOD calculations are off a little for small MIP levels.