34 lines
1.2 KiB
Diff
34 lines
1.2 KiB
Diff
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From a916f33535177a3032822d7b47ab199d6249b989 Mon Sep 17 00:00:00 2001
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From: Benjamin Berg <bberg@redhat.com>
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Date: Thu, 28 Nov 2019 11:37:33 +0100
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Subject: [PATCH 049/181] tests: Fix endianness issue in test suite
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The test suite needs to compare greyscale images and was picking an
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undefined byte in the pixel data on big-endian. Select a byte that works
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on any endian instead.
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See: #200
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---
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tests/umockdev-test.py | 5 ++++-
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1 file changed, 4 insertions(+), 1 deletion(-)
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diff --git a/tests/umockdev-test.py b/tests/umockdev-test.py
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index d91fcb9..1b556e1 100755
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--- a/tests/umockdev-test.py
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+++ b/tests/umockdev-test.py
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@@ -48,7 +48,10 @@ def cmp_pngs(png_a, png_b):
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for x in range(img_a.get_width()):
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for y in range(img_a.get_height()):
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- assert(data_a[y * stride + x * 4] == data_b[y * stride + x * 4])
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+ # RGB24 format is endian dependent, using +1 means we test either
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+ # the G or B component, which works on any endian for the greyscale
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+ # test.
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+ assert(data_a[y * stride + x * 4 + 1] == data_b[y * stride + x * 4 + 1])
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def get_umockdev_runner(ioctl_basename):
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ioctl = os.path.join(ddir, "{}.ioctl".format(ioctl_basename))
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--
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2.24.1
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