[PATCH 1/1] tests/fetch.py: Add test case to verify PREMIRROR with mix of remote and local

["Vishal Patel" <vishal.patel@xilinx.com>]

If the PREMIRROR lists both remote and local mirrors, and has BB_NO_NETWORK
enabled, it will fail on the first network attempt without falling back to
the local (file://) PREMIRROR.

Signed-off-by: Vishal Patel <vishal.patel@xilinx.com>
---
 lib/bb/tests/fetch.py | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/lib/bb/tests/fetch.py b/lib/bb/tests/fetch.py
index 9291ce4a..559c678b 100644
--- a/lib/bb/tests/fetch.py
+++ b/lib/bb/tests/fetch.py
@@ -823,6 +823,26 @@ class FetcherNoNetworkTest(FetcherTest):
         self.assertFalse(os.path.exists(os.path.join(self.dldir, "test-file.tar.gz")))
         self.assertFalse(os.path.exists(os.path.join(self.dldir, "test-file.tar.gz.done")))

+    def test_fetch_premirror(self):
+        mirrordir = os.path.join(self.tempdir, 'mirror')
+        os.mkdir(mirrordir)
+        # create the file in a mirror directory with correct hash
+        string = "this is a test file\n".encode("utf-8")
+        with open(os.path.join(mirrordir, "test-file.tar.gz"), "wb") as f:
+            f.write(string)
+        self.d.setVarFlag("SRC_URI", "sha256sum", "b6668cf8c46c7075e18215d922e7812ca082fa6cc34668d00a6c20aee4551fb6")
+        self.d.setVar("PREMIRRORS", "http://.*/.* file://%s/test-file.tar.gz" % mirrordir)
+        fetcher = bb.fetch.Fetch(["http://invalid.yoctoproject.org/release/test-file.tar.gz"], self.d)
+        fetcher.download()
+        self.assertEqual(os.path.getsize(self.dldir + "/test-file.tar.gz"), 20)
+        bb.utils.remove(self.dldir, recurse=True)
+
+        self.d.setVar("BB_NO_NETWORK", "1")
+        self.d.setVar("PREMIRRORS", "http://.*/.* http://downloads.yoctoproject.org/releases/bitbake \nhttp://.*/.* file://%s/test-file.tar.gz" % mirrordir)
+        fetcher = bb.fetch.Fetch(["http://invalid.yoctoproject.org/release/test-file.tar.gz"], self.d)
+        fetcher.download()
+        self.assertEqual(os.path.getsize(self.dldir + "/test-file.tar.gz"), 20)
+
 class FetcherNetworkTest(FetcherTest):
     @skipIfNoNetwork()
     def test_fetch(self):
--
2.25.1

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