41 lines
1.7 KiB
Bash
41 lines
1.7 KiB
Bash
#!/bin/sh
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set -x
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screenshot=xrdp-screenshot.png
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magickout=match-matrix
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testdir=$(dirname "$0")
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sudo systemctl start xrdp
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# Start XRDP and try to connect to it via Freerdp2, the package being tested.
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# Take a screenshot of the X virtual framebuffer, which should contain the
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# login screen.
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xvfb-run -l "$testdir/connect-and-capture" "$screenshot"
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# Try to remove the background to leave just the login window in the image
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cp -a "$screenshot" "${screenshot}.before.mogrify.png"
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mogrify -fuzz 4% -define trim:percent-background=0% -trim +repage -format png "$screenshot"
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# Resize the search image to match nearly the really displayed size
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convert -resize 50% /usr/share/xrdp/xrdp_logo.bmp xrdp_logo_50percent.png
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# Confirm that the XRDP logo is in the log in screen (so as to confirm that the
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# login screen is really there).
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# https://stackoverflow.com/questions/31867093/how-to-search-an-image-for-subimages-using-linux-console
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# compare creates two output files, $magickout-{0,1}; The latter
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# is a grayscale pattern, in which a white pixel represents a match.
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# If the images don't even resemble each other in any way, the compare
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# will fail but we don't need to check that specifically, because so
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# will the if below.
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compare -metric RMSE -subimage-search \
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"$screenshot" xrdp_logo_50percent.png png:"$magickout"
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# In case of match, output will be like
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# "520,347: (255,255,255) #FFFFFF gray(255)"
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# in which the first field is the coordinates of the match.
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if ! convert "$magickout-1" -threshold 95% txt: | grep -qi '#FFFFFF'; then
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2>&1 printf "%s\n" "Imagemagick did not find any occurence of the XRDP" \
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"logo inside the screenshot of the remote desktop." \
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"This test therefore failed."
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exit 2
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fi
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