Increase RGBASM test coverage

test/link/pipeline/a.asm

@@ -0,0 +1,10 @@
+section "test", rom0
+db 1, 4, 9, 16
+
+section "entrypoint", rom0[$100]
+ld b, b
+jp Start
+
+section "start", rom0[$150]
+Start::
+jp Start

test/link/test.sh

@@ -26,6 +26,7 @@ rescolors="$(tput op)"
 
 RGBASM=../../rgbasm
 RGBLINK=../../rgblink
+RGBFIX=../../rgbfix
 
 startTest () {
 	echo "${bold}${green}${test} assembling...${rescolors}${resbold}"
@@ -71,7 +72,7 @@ tryCmpRomSize () {
 }
 
 rgblinkQuiet () {
-	out="$(env $RGBLINK -Weverything -B collapse "$@")" || return $?
+	out="$(env "$RGBLINK" -Weverything -B collapse "$@")" || return $?
 	if [[ -n "$out" ]]; then
 		echo "$bold${red}Linking shouldn't produce anything on stdout!${rescolors}${resbold}"
 		false
@@ -251,6 +252,16 @@ tryDiff "$test"/out.err "$outtemp"
 tryCmp "$test"/out.gb "$gbtemp"
 evaluateTest
 
+test="pipeline"
+startTest
+continueTest
+("$RGBASM" -Weverything -B collapse -o - - | \
+ "$RGBLINK" -Weverything -B collapse -o - - | \
+ "$RGBFIX" -Weverything -v -p 0xff -) < "$test"/a.asm > "$gbtemp"
+# This test does not trim its output with 'dd' because it needs to verify the correct output size
+tryCmp "$test"/out.gb "$gbtemp"
+evaluateTest
+
 test="same-consts"
 startTest
 "$RGBASM" -o "$otemp" "$test"/a.asm