From 1c8e0b4922f77c9dec591aa4ec30708cf4c55f1a Mon Sep 17 00:00:00 2001
From: Douglas RAILLARD <douglas.raillard@arm.com>
Date: Fri, 8 Feb 2019 11:46:38 +0000
Subject: [PATCH] exekall: compare: handle when no test ID is matching

---
 lisa/exekall_customize.py | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/lisa/exekall_customize.py b/lisa/exekall_customize.py
index 99896ac36..2e2518249 100644
--- a/lisa/exekall_customize.py
+++ b/lisa/exekall_customize.py
@@ -168,6 +168,10 @@ class LISAAdaptor(AdaptorBase):
             alpha=alpha,
         )
 
+        if not regr_list:
+            print('No matching test IDs have been found, use "--remove-tag board" to match across "board" tags')
+            return
+
         print('testcase failure rate changes with alpha={}\n'.format(alpha))
 
         id_len = max(len(regr.testcase_id) for regr in regr_list)
-- 
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