test_sh.sh

#!/usr/bin/env bash
set -euo pipefail
source "$(dirname "$0")/helpers.sh"

pass=0 fail=0
tmpdir=$(mktemp -d)
trap 'rm -rf "$tmpdir"' EXIT

SH="$CFBOX sh"

# ── Basic command execution ──────────────────────────────────────
out=$($SH -c "echo hello")
assert_output "hello" "$out"
((++pass))

# ── Pipeline ─────────────────────────────────────────────────────
out=$($SH -c 'echo hello | wc -l')
assert_output "1" "$out"
((++pass))

out=$($SH -c 'echo aaa | cat')
assert_output "aaa" "$out"
((++pass))

out=$($SH -c 'echo -n hi | cat')
assert_output "hi" "$out"
((++pass))

# ── Variable expansion ───────────────────────────────────────────
out=$($SH -c 'X=hello; echo $X')
assert_output "hello" "$out"
((++pass))

out=$($SH -c 'X=world; echo "hi $X"')
assert_output "hi world" "$out"
((++pass))

# ── For loop ─────────────────────────────────────────────────────
out=$($SH -c 'for i in 1 2 3; do echo $i; done')
expected=$'1\n2\n3'
assert_output "$expected" "$out"
((++pass))

out=$($SH -c 'for x in a b c; do echo -$x-; done')
expected=$'-a-\n-b-\n-c-'
assert_output "$expected" "$out"
((++pass))

# ── If/then/else ─────────────────────────────────────────────────
out=$($SH -c 'if true; then echo yes; fi')
assert_output "yes" "$out"
((++pass))

out=$($SH -c 'if false; then echo yes; else echo no; fi')
assert_output "no" "$out"
((++pass))

out=$($SH -c 'if false; then echo a; elif true; then echo b; else echo c; fi')
assert_output "b" "$out"
((++pass))

# ── While loop ───────────────────────────────────────────────────
out=$($SH -c 'i=0; while [ $i -lt 3 ]; do echo $i; i=3; done')
assert_output "0" "$out"
((++pass))

# ── && and || ────────────────────────────────────────────────────
out=$($SH -c 'true && echo pass || echo fail')
assert_output "pass" "$out"
((++pass))

out=$($SH -c 'false && echo pass || echo fail')
assert_output "fail" "$out"
((++pass))

# ── Redirections ─────────────────────────────────────────────────
$SH -c "echo redir_out > $tmpdir/r.txt"
out=$(cat "$tmpdir/r.txt")
assert_output "redir_out" "$out"
((++pass))

out=$($SH -c "echo hi > $tmpdir/r2.txt; cat < $tmpdir/r2.txt")
assert_output "hi" "$out"
((++pass))

out=$($SH -c "echo a > $tmpdir/r3.txt; echo b >> $tmpdir/r3.txt; cat $tmpdir/r3.txt")
expected=$'a\nb'
assert_output "$expected" "$out"
((++pass))

# ── Command substitution ─────────────────────────────────────────
out=$($SH -c 'echo $(echo nested)')
assert_output "nested" "$out"
((++pass))

# ── Subshell ─────────────────────────────────────────────────────
out=$($SH -c '(echo sub1; echo sub2)')
expected=$'sub1\nsub2'
assert_output "$expected" "$out"
((++pass))

# ── Brace group ──────────────────────────────────────────────────
out=$($SH -c '{ echo b1; echo b2; }')
expected=$'b1\nb2'
assert_output "$expected" "$out"
((++pass))

# ── Builtin cd ───────────────────────────────────────────────────
out=$($SH -c "cd /tmp; pwd")
assert_output "/tmp" "$out"
((++pass))

# ── Builtin export ───────────────────────────────────────────────
out=$($SH -c 'export MYVAR=42; echo $MYVAR')
assert_output "42" "$out"
((++pass))

# ── Builtin exit ─────────────────────────────────────────────────
set +e
$SH -c 'exit 42'
rc=$?
set -e
[[ $rc -eq 42 ]]
((++pass))

# ── Builtin shift ────────────────────────────────────────────────
out=$($SH -c 'set -- a b c; shift; echo $1')
assert_output "b" "$out"
((++pass))

# ── Tilde expansion ──────────────────────────────────────────────
out=$($SH -c 'echo ~' | head -1)
[[ -n "$out" ]]
((++pass))

# ── Special parameters ───────────────────────────────────────────
out=$($SH -c 'echo $#' sh_name a b c)
assert_output "3" "$out"
((++pass))

# ── --help / --version ───────────────────────────────────────────
assert_exit 0 sh --help
((++pass))

assert_exit 0 sh --version
((++pass))

echo "sh: $pass passed, $fail failed"
[[ $fail -eq 0 ]]