tests: lua_core: use herewords for single-line programs

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: John Kennedy <john.kennedy@delphix.com>
Reviewed-by: Ryan Moeller <ryan@iXsystems.com>
Signed-off-by: Ahelenia Ziemiańska <nabijaczleweli@nabijaczleweli.xyz>
Closes #13259

tests/zfs-tests/tests/functional/channel_program/lua_core/tst.exists.ksh

@@ -38,8 +38,6 @@ log_must_program $TESTPOOL $ZCP_ROOT/lua_core/tst.exists.zcp \
     $TESTPOOL/$TESTCLONE
 
 log_mustnot_checkerror_program "not in the target pool" \
-    $TESTPOOL - <<-EOF
-	return zfs.exists('rpool')
-EOF
+    $TESTPOOL - <<<"return zfs.exists('rpool')"
 
 log_pass "zfs.exists() gives correct results"

tests/zfs-tests/tests/functional/channel_program/lua_core/tst.integer_illegal.ksh

@@ -32,9 +32,7 @@ set -A args "1.0" \
 
 typeset -i i=0
 while (( i < ${#args[*]} )); do
-	log_mustnot_checkerror_program "malformed number" $TESTPOOL - <<-EOF
-		return ${args[i]}
-	EOF
+	log_mustnot_checkerror_program "malformed number" $TESTPOOL - <<<"return ${args[i]}"
 	((i = i + 1))
 done
 

tests/zfs-tests/tests/functional/channel_program/lua_core/tst.integer_overflow.ksh

@@ -25,8 +25,6 @@ verify_runnable "global"
 
 log_assert "overflowing a 64-bit integer should wrap around"
 
-log_must_program $TESTPOOL - <<-EOF
-	assert(18446744073709551615 + 1 == (-18446744073709551616))
-EOF
+log_must_program $TESTPOOL - <<<"assert(18446744073709551615 + 1 == (-18446744073709551616))"
 
 log_pass "overflowing a 64-bit integer should wrap around"

tests/zfs-tests/tests/functional/channel_program/lua_core/tst.language_functions_neg.ksh

@@ -43,9 +43,7 @@ log_assert "Runtime errors in lua scripts fail as expected."
 
 typeset -i i=0
 while (( i < ${#args[*]} )); do
-	log_mustnot_checkerror_program "execution failed" $TESTPOOL - <<-EOF
-		${args[i]}
-	EOF
+	log_mustnot_checkerror_program "execution failed" $TESTPOOL - <<<"${args[i]}"
 	((i = i + 1))
 done
 

tests/zfs-tests/tests/functional/channel_program/lua_core/tst.language_functions_pos.ksh

@@ -33,9 +33,7 @@ log_assert "Simple lua scripts pass."
 
 typeset -i i=0
 while (( i < ${#args[*]} )); do
-	log_must_program $TESTPOOL - <<-EOF
-		${args[i]}
-	EOF
+	log_must_program $TESTPOOL - <<<"${args[i]}"
 	((i = i + 1))
 done
 

tests/zfs-tests/tests/functional/channel_program/lua_core/tst.return_large.ksh

@@ -41,8 +41,7 @@ log_must zfs create $fs
 output_lines=$(log_must zfs program $TESTPOOL \
     $ZCP_ROOT/lua_core/tst.return_large.zcp | wc -l)
 
-[[ $output_lines -lt 5000 ]] &&
-    log_fail "Expected return of full list but only got $output_lines lines"
+log_must [ $output_lines -ge 5000 ]
 
 #
 # Make sure we fail if the return is over the memory limit

tests/zfs-tests/tests/functional/channel_program/lua_core/tst.return_nvlist_neg.ksh

@@ -45,17 +45,13 @@ set -A args 'function() return 1 end' \
 typeset -i last_index=$((${#args[*]} - 1))
 for i in $(seq 0 $last_index); do
 	log_note "running program: ${args[i]}"
-	log_mustnot_checkerror_program "execution failed" $TESTPOOL - <<-EOF
-		return ${args[i]}
-	EOF
+	log_mustnot_checkerror_program "execution failed" $TESTPOOL - <<<"return ${args[i]}"
 	((i = i + 1))
 done
 
 for i in $(seq 0 $last_index); do
 	log_note "running program: ${args[i]}"
-	log_mustnot_checkerror_program "execution failed" $TESTPOOL - <<-EOF
-		error(${args[i]})
-	EOF
+	log_mustnot_checkerror_program "execution failed" $TESTPOOL - <<<"error(${args[i]})"
 	((i = i + 1))
 done
 

tests/zfs-tests/tests/functional/channel_program/lua_core/tst.return_nvlist_pos.ksh

@@ -39,18 +39,14 @@ log_assert "Returning valid lua constructs works."
 typeset -i i=0
 while (( i < ${#args[*]} )); do
 	log_note "running program: return ${args[i]}"
-	log_must_program $TESTPOOL - <<-EOF
-		return ${args[i]}
-	EOF
+	log_must_program $TESTPOOL - <<<"return ${args[i]}"
 	((i = i + 1))
 done
 
 typeset -i i=0
 while (( i < ${#args[*]} )); do
 	log_note "running program: error(${args[i]})"
-	log_mustnot_checkerror_program "in function 'error'" $TESTPOOL - <<-EOF
-		error(${args[i]})
-	EOF
+	log_mustnot_checkerror_program "in function 'error'" $TESTPOOL - <<<"error(${args[i]})"
 	((i = i + 1))
 done