Add automatic rendering tests

These tests render a HTML page in Dillo and save a screenshot which is
compared with another one rendered by a reference HTML file which
doesn't make use of the feature under test.

Running these tests require some additional dependencies to run a Xorg
server and capture screenshots of the browser, so they are only enabled
when configured with the --enable-html-tests option.

Additionally, running Dillo and opening local files requires a working
file dpi plugin. So, when running the HTML tests it is required that a
working dpid server can be launched by Dillo. To do so, Dillo can be
first installed to a prefix directory, the dpidrc file copied to
~/.dillo/ and then the DILLOBIN variable set to the path of the dillo
binary under test.

1 files changed, 14 insertions, 0 deletions

diff --git a/test/html/manual/KHM1b.html b/test/html/manual/KHM1b.html
new file mode 100644
index 00000000..adefc1ef
--- /dev/null
+++ b/test/html/manual/KHM1b.html
@@ -0,0 +1,14 @@
+<p style="text-align: justify">In den al&shy;ten Zei&shy;ten, wo das
+Wün&shy;schen noch ge&shy;hol&shy;fen hat, leb&shy;te ein Kö&shy;nig,
+des&shy;sen Töch&shy;ter wa&shy;ren al&shy;le schön, aber die
+jüng&shy;ste war so schön, daß die Son&shy;ne sel&shy;ber, die doch so
+vie&shy;les ge&shy;se&shy;hen hat, sich ver&shy;wun&shy;der&shy;te so
+oft sie ihr ins Ge&shy;sicht schien. Na&shy;he bei dem Schlos&shy;se
+des Kö&shy;nigs lag ein gro&shy;ßer dunk&shy;ler Wald, und in dem
+Wal&shy;de un&shy;ter ei&shy;ner al&shy;ten Lin&shy;de war ein
+Brun&shy;nen: wenn nun der Tag recht heiß war, so ging das
+Kö&shy;nigs&shy;kind hin&shy;aus in den Wald und setz&shy;te sich an
+den Rand des küh&shy;len Brun&shy;nens: und wenn sie
+Lan&shy;ge&shy;wei&shy;le hat&shy;te, so nahm sie eine
+gol&shy;de&shy;ne Ku&shy;gel, warf sie in die Hö&shy;he und fieng sie
+wie&shy;der; und das war ihr liebs&shy;tes Spiel&shy;werk.</p>