bitbake: tests/fetch: handle network failures gracefully

If there is a network failure the return value from latest_versionstring() is
('','') which later causes an exception when comparing versions.

Improve this by checking the return value and failing the test early.

[ YOCTO #12053 ]

(Bitbake rev: 4284d918dc7451f6a4d00be065369e86bbaec4d2)

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

1 files changed, 2 insertions, 0 deletions

diff --git a/bitbake/lib/bb/tests/fetch.py b/bitbake/lib/bb/tests/fetch.py
index 0fd2c02163..5a8d892855 100644
--- a/bitbake/lib/bb/tests/fetch.py
+++ b/bitbake/lib/bb/tests/fetch.py
@@ -793,6 +793,7 @@ class FetchLatestVersionTest(FetcherTest):
                 ud = bb.fetch2.FetchData(k[1], self.d)
                 pupver= ud.method.latest_versionstring(ud, self.d)
                 verstring = pupver[0]
+                self.assertTrue(verstring, msg="Could not find upstream version")
                 r = bb.utils.vercmp_string(v, verstring)
                 self.assertTrue(r == -1 or r == 0, msg="Package %s, version: %s <= %s" % (k[0], v, verstring))
 
@@ -804,6 +805,7 @@ class FetchLatestVersionTest(FetcherTest):
                 ud = bb.fetch2.FetchData(k[1], self.d)
                 pupver = ud.method.latest_versionstring(ud, self.d)
                 verstring = pupver[0]
+                self.assertTrue(verstring, msg="Could not find upstream version")
                 r = bb.utils.vercmp_string(v, verstring)
                 self.assertTrue(r == -1 or r == 0, msg="Package %s, version: %s <= %s" % (k[0], v, verstring))