[bitbake-devel][PATCH V2 3/3] tests/fetch.py: add test case to ensure downloadfilename is used for premirror

[Chen Qi <Qi.Chen@windriver.com>]

Add a test case test_fetch_premirror_use_downloadfilename_to_fetch to ensure
that 'downloadfilename' is used when fetching from premirror.

Although the other two previous test cases, test_fetch_premirror_specify_downloadfilename_regex_uri
and test_fetch_premirror_specify_downloadfilename_specific_uri already
implicitly contain such verification, we still need to add a very clear
case to ensure no regression.

Signed-off-by: Chen Qi <Qi.Chen@windriver.com>
---
 bitbake/lib/bb/tests/fetch.py | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/bitbake/lib/bb/tests/fetch.py b/bitbake/lib/bb/tests/fetch.py
index d06580db88..a008e7cc5b 100644
--- a/bitbake/lib/bb/tests/fetch.py
+++ b/bitbake/lib/bb/tests/fetch.py
@@ -887,6 +887,14 @@ class FetcherNetworkTest(FetcherTest):
         fetcher.download()
         self.assertEqual(os.path.getsize(self.dldir + "/bitbake-1.0.tar.gz"), 57749)
 
+    @skipIfNoNetwork()
+    def test_fetch_premirror_use_downloadfilename_to_fetch(self):
+        # Ensure downloadfilename is used when fetching from premirror.
+        self.d.setVar("PREMIRRORS", "http://.*/.* https://downloads.yoctoproject.org/releases/bitbake")
+        fetcher = bb.fetch.Fetch(["http://invalid.yoctoproject.org/releases/bitbake/bitbake-1.1.tar.gz;downloadfilename=bitbake-1.0.tar.gz"], self.d)
+        fetcher.download()
+        self.assertEqual(os.path.getsize(self.dldir + "/bitbake-1.0.tar.gz"), 57749)
+
     @skipIfNoNetwork()
     def gitfetcher(self, url1, url2):
         def checkrevision(self, fetcher):
-- 
2.33.0