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authorJoshua Lock <joshua.lock@collabora.co.uk>2016-04-08 10:14:19 +0100
committerRichard Purdie <richard.purdie@linuxfoundation.org>2016-04-09 07:54:29 +0100
commit2b8299eb6b911e64d9a05b86c07b489d15eeaa5e (patch)
tree7d145bc0c8148b4fbfd666d133f1594fab28569e
parent5fd592fbae2e046bcb8c3a6c3ef4993fe0400676 (diff)
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oeqa/selftest/wic: add test case for sparse images
Add a testcase to build a directdisk image and check that the used disk size is less than the apparent size, as wic now assembles images as sparse files. Signed-off-by: Joshua Lock <joshua.lock@collabora.co.uk> Signed-off-by: Ed Bartosh <ed.bartosh@linux.intel.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
-rw-r--r--meta/lib/oeqa/selftest/wic.py13
1 files changed, 13 insertions, 0 deletions
diff --git a/meta/lib/oeqa/selftest/wic.py b/meta/lib/oeqa/selftest/wic.py
index a569fbf747..dd3207528e 100644
--- a/meta/lib/oeqa/selftest/wic.py
+++ b/meta/lib/oeqa/selftest/wic.py
@@ -276,3 +276,16 @@ class Wic(oeSelfTest):
status, output = qemu.run_serial(command)
self.assertEqual(1, status, 'Failed to run command "%s": %s' % (command, output))
self.assertEqual(output, '/dev/root /\r\n/dev/vda3 /mnt')
+
+ def test_sparseness(self):
+ """Test that assembled images are sparse; apparent size > disk usage"""
+ self.assertEqual(0, runCmd("wic create directdisk "
+ "--image-name core-image-minimal").status)
+ images = glob(self.resultdir + "directdisk-*.direct")
+ self.assertEqual(1, len(images))
+
+ imagestat = os.stat(images.pop())
+ # st_blocks is the "number of 512-byte blocks allocated for file"
+ used = imagestat.st_blocks*512
+ apparent = imagestat.st_size
+ self.assertLess(used, apparent)