test(packages): Add test covering OT +ruby feature

Makefile-fonts

@@ -34,6 +34,7 @@ TESTFONTFILES  = $(DOCSFONTFILES)
 TESTFONTFILES += Amiri-Regular.ttf
 TESTFONTFILES += AmiriQuran.ttf
 TESTFONTFILES += AwamiNastaliq-Regular.ttf
+TESTFONTFILES += FRBTaiwaneseKana.otf
 TESTFONTFILES += LibertinusSans-Bold.otf
 TESTFONTFILES += NotoNaskhArabic-Regular.ttf
 TESTFONTFILES += NotoSansKannada-Regular.ttf
@@ -73,6 +74,10 @@ notobase = $(shell echo $(notdir $1) | sed -e 's/-.*//')
 .fonts/TwemojiMozilla.ttf: | .fonts
 	$(CURL) -fsSL https://github.com/mozilla/twemoji-colr/releases/download/v0.5.1/$(notdir $@) -o $@
 
+.fonts/FRBTaiwaneseKana.otf: | .fonts
+	: $(CURL) -fsSL https://github.com/ctrlcctrlv/FRBTaiwaneseKana/releases/download/v1.1/$(notdir $@) -o $@
+	$(CURL) -fsSL https://raw.githubusercontent.com/ctrlcctrlv/FRBTaiwaneseKana/5c367e9ee5aefd54b5c9c9e996705f0561fe3d15/$(notdir $@) -o $@
+
 # Tell  make how to download font file bundles (when not downloadable individually)
 
 .sources/AwamiNastaliq-2.200.zip: | .sources

tests/bug-1047.expected

@@ -0,0 +1,17 @@
+Set paper size 	297.6377985	419.5275636
+Begin page
+Mx 	24.7039
+My 	42.3452
+Set font 	FRB Taiwanese Kana;24;400;;normal;+ruby;;LTR
+T	172 w=24.0000	(タ)
+Mx 	48.7039
+T	145 w=24.0000	(イ)
+Mx 	72.7039
+T	122 w=12.0000	(𚿳)
+Mx 	24.7039
+My 	82.3452
+Mx 	34.7039
+Set font 	Noto Serif CJK TC;40;400;;normal;;;LTR
+T	34119 w=40.0000	(臺)
+End page
+Finish

tests/bug-1047.sil

@@ -0,0 +1,10 @@
+\begin[class=jplain,papersize=a6]{document}
+\nofolios
+\neverindent
+\language[main=zh]
+\use[module=packages.ruby]
+\font:remove-fallback
+\font:add-fallback[family=Noto Serif CJK TC]
+\font[family=FRB Taiwanese Kana,size=40pt]
+\ruby[reading=タイ𚿳]{臺}
+\end{document}