[Piglit] [PATCH 4/5] Run random UBO tests forever looking for failures

[Ian Romanick]

From: Ian Romanick <ian.d.romanick at intel.com>

Doesn't actually run forever.  Passing tests are put in a directory
called "pass", and failing tests are put in a directory called "fail".
The test will terminate when 1,000 failing tests are generated.

This is an example of how random_ubo.py can be used.  This is how I
found SIX bugs in Mesa's UBO code.  I don't think we want this in
piglit, but it should live somewhere.

Signed-off-by: Ian Romanick <ian.d.romanick at intel.com>
---
 random_runs.sh | 40 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 40 insertions(+)
 create mode 100644 random_runs.sh

diff --git a/random_runs.sh b/random_runs.sh
new file mode 100644
index 0000000..2d3af90
--- /dev/null
+++ b/random_runs.sh
@@ -0,0 +1,40 @@
+#!/bin/bash
+
+typeset -i i
+typeset -i f
+
+i=1
+f=0
+
+if [ -d pass ]; then
+	rm -f pass/*.shader_test
+else
+	mkdir pass
+fi
+
+if [ -d fail ]; then
+	rm -f fail/*.shader_test
+else
+	mkdir fail
+fi
+
+while true; do
+    t=$(printf "0x%08x.shader_test" $i)
+
+    python2 generated_tests/random_ubo.py 330 > $t
+
+    if mesa installed bin/shader_runner ./$t -auto -fbo | grep -q pass; then
+	mv $t pass/
+    else
+	mv $t fail/
+	echo $t
+	f=$((f + 1))
+    fi
+
+    if [ $f -ge 1000 ]; then
+	echo $i total tests
+	exit 0
+    fi
+
+    i=$((i + 1))
+done
-- 
1.8.1.4