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#!/bin/bash
#
# File: driver.sh
#
# Copyright (C) 2023-2024 Rodrigo Arias Mallo <rodarima@gmail.com>
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 3 of the License, or
# (at your option) any later version.
set -e
set -x
DILLOBIN=${DILLOBIN:-$TOP_BUILDDIR/src/dillo}
if [ ! -e $DILLOBIN ]; then
echo missing dillo binary, set DILLOBIN with the path to dillo
exit 1
fi
magick_bin="convert"
if command -v magick 2>&1 >/dev/null; then
magick_bin="magick"
fi
function render_page() {
htmlfile="$1"
outpic="$2"
"$DILLOBIN" -f "$htmlfile" &
dillopid=$!
# TODO: We need a better system to determine when the page loaded
# This will poll for the window every 10th of a second for up to 5 seconds
found_window=false
for i in {0..50}; do
sleep 0.1
# Capture only Dillo window
winid=$(xwininfo -all -root | awk '/Dillo:/ {print $1}')
if [ ! -z "$winid" ]; then
found_window=true
# Wait some after the window appears to ensure rendering is done
sleep ${DILLO_TEST_WAIT_TIME:-1}
break
fi
done
if ! $found_window; then
echo "cannot find Dillo window" >&2
exit 1
fi
xwd -id "$winid" -silent | ${magick_bin} xwd:- png:${outpic}
kill "$dillopid"
}
function test_file() {
html_file="$1"
if [ ! -e "$html_file" ]; then
echo "missing test file: $html_file"
exit 1
fi
ref_file="${html_file%.html}.ref.html"
if [ ! -e "$ref_file" ]; then
echo "missing reference file: $ref_file"
exit 1
fi
test_name=$(basename "$html_file")
wdir="${test_name}_wdir"
# Clean any previous files
rm -rf "$wdir"
mkdir -p "$wdir"
# Use a FIFO to read the display number
mkfifo "$wdir/display.fifo"
exec 6<> "$wdir/display.fifo"
Xvfb -screen 5 1024x768x24 -displayfd 6 &
xorgpid=$!
# Always kill Xvfb on exit
trap "kill $xorgpid" EXIT
read dispnum < "$wdir/display.fifo"
export DISPLAY=":$dispnum"
render_page "$html_file" "$wdir/html.png"
render_page "$ref_file" "$wdir/ref.png"
# AE = Absolute Error count of the number of different pixels
diffcount=$(compare -metric AE "$wdir/html.png" "$wdir/ref.png" "$wdir/diff.png" 2>&1 | cut -d ' ' -f 1 || true)
# The test passes only if both images are identical
if [ "$diffcount" = "0" ]; then
echo "OK"
ret=0
else
echo "FAIL"
ret=1
fi
exec 6>&-
rm "$wdir/display.fifo"
if [ -z "$DILLO_TEST_LEAVE_FILES" ]; then
rm -rf "$wdir"
fi
return $ret
}
test_file "$1"
exit $?
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