abuild: add test for -doc subpackages

tests/abuild_test

@@ -25,7 +25,8 @@ init_tests \
 	abuild_git_ceiling \
 	abuild_package_size_zero \
 	abuild_package_size_nonzero \
-	abuild_amove
+	abuild_amove \
+	abuild_doc
 
 export ABUILD_SHAREDIR=$(atf_get_srcdir)/..
 export ABUILD_CONF=/dev/null
@@ -594,3 +595,41 @@ abuild_amove_body() {
 		test -f pkg/$i || atf_fail "$i failed"
 	done
 }
+
+abuild_doc_body() {
+	init_keys
+	mkdir -p foo
+
+	cd foo
+	cat > APKBUILD <<-EOF
+		# Maintainer: Test User 123 <123@example.com>
+		# test package
+		pkgname="foo"
+		pkgver="1.0"
+		pkgrel=0
+		pkgdesc='Dummy test package - doc'
+		url='https://gitlab.alpinelinux.org/alpine/aports'
+		arch='noarch'
+		license='MIT'
+		subpackages="\$pkgname-doc"
+
+		build() {
+			touch foo foo.1 readme
+		}
+
+		package() {
+			install -Dt "\$pkgdir"/usr/bin foo
+			install -Dt "\$pkgdir"/usr/share/man/man1 foo.1
+			install -Dt "\$pkgdir"/usr/share/doc/foo readme
+		}
+	EOF
+	abuild build rootpkg || atf_fail "abuild rootpkg failed"
+	find pkg
+	for i in \
+			foo/usr/bin/foo \
+			foo-doc/usr/share/man/man1/foo.1.gz \
+			foo-doc/usr/share/doc/foo/readme \
+			; do \
+		test -f pkg/$i || atf_fail "$i failed"
+	done
+}