oeqa/core/case: add file exists assertion

Add assertFileExists() to simply tests that want to check that a file
exists.

(From OE-Core rev: b62e53a0cff2522fef3b89de875c9526a626d7dd)

Signed-off-by: Ross Burton <ross.burton@arm.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 8 insertions, 0 deletions

diff --git a/meta/lib/oeqa/core/case.py b/meta/lib/oeqa/core/case.py
index bc4446a938..ad5524a714 100644
--- a/meta/lib/oeqa/core/case.py
+++ b/meta/lib/oeqa/core/case.py
@@ -5,6 +5,7 @@
 #
 
 import base64
+import os
 import zlib
 import unittest
 
@@ -57,6 +58,13 @@ class OETestCase(unittest.TestCase):
             d.tearDownDecorator()
         self.tearDownMethod()
 
+    def assertFileExists(self, filename, msg=None):
+        """
+        Test that filename exists. If it does not, the test will fail.
+        """
+        if not os.path.exists(filename):
+            self.fail(msg or "%s does not exist" % filename)
+
 class OEPTestResultTestCase:
     """
     Mix-in class to provide functions to make interacting with extraresults for