#!/bin/sh

. ./test.sh

test "prints error on trailing newlines"
{
echo "bar"
echo "baz"
printf "\n"
} > foo

[ "$(ltn foo 2>&1)" = "foo: Trailing newlines" ]

test "return error status on trailing newlines"
{
echo "bar"
echo "baz"
printf "\n"
} > foo

! ltn foo 2>/dev/null

test "print error on trailing newlines in multiple files"
{
echo "bar"
echo "baz"
printf "\n"
} > foo

{
echo "bar"
echo "baz"
printf "\n"
} > bar

{
echo "bar"
echo "baz"
} > baz

printf "" > fiz

[ "$(ltn ./* 2>&1)" = "./bar: Trailing newlines
./fiz: Trailing newlines
./foo: Trailing newlines" ]

test "return error status on trailing newlines in multiple files"
{
echo "bar"
echo "baz"
printf "\n"
} > foo

{
echo "bar"
echo "baz"
printf "\n"
} > bar

{
echo "bar"
echo "baz"
} > baz

! ltn foo ./* 2>/dev/null

test "prints error on trailing newlines from standard input"
[ "$( (echo foo; printf "\n")  | ltn 2>&1)" = ": Trailing newlines" ]

test "returns error status on trailing newlines from standard input"
! ( echo foo; printf "\n" ) | ltn  >/dev/null 2>&1

test "returns success status on empty file"
echo > foo
ltn foo ./* 2>/dev/null

test "returns success status on empty standard input"
echo | ltn