| 1 | #!/bin/sh |
| 2 | # ===================================== |
| 3 | # POSIX Redirection Gap Tests |
| 4 | # ===================================== |
| 5 | # Tests for POSIX redirection operators |
| 6 | # Split from posix_compliance_gaps.sh for better organization |
| 7 | |
| 8 | # Colors (POSIX-compliant way) |
| 9 | RED='\033[0;31m' |
| 10 | GREEN='\033[0;32m' |
| 11 | YELLOW='\033[1;33m' |
| 12 | BLUE='\033[0;34m' |
| 13 | NC='\033[0m' |
| 14 | |
| 15 | # Test identification |
| 16 | TEST_PREFIX="[gaps-redirect]" |
| 17 | CURRENT_SECTION="" |
| 18 | TEST_NUM=0 |
| 19 | |
| 20 | PASSED=0 |
| 21 | FAILED=0 |
| 22 | SKIPPED=0 |
| 23 | FAILED_TESTS_LIST="" |
| 24 | |
| 25 | # Get script directory (POSIX way) |
| 26 | SCRIPT_DIR=$(cd "$(dirname "$0")" && pwd) |
| 27 | SHELL_BIN="${SHELL_BIN:?ERROR: SHELL_BIN must be set}" |
| 28 | BASH_REF="${BASH_REF:-bash}" |
| 29 | |
| 30 | # Check if shell binary exists |
| 31 | if [ ! -x "$SHELL_BIN" ]; then |
| 32 | printf "${RED}ERROR${NC}: shell binary not found at $SHELL_BIN\n" |
| 33 | printf "Please set SHELL_BIN or set SHELL_BIN environment variable\n" |
| 34 | exit 1 |
| 35 | fi |
| 36 | |
| 37 | pass() { |
| 38 | TEST_NUM=$((TEST_NUM + 1)) |
| 39 | printf "${GREEN}✓ PASS${NC} ${TEST_PREFIX} ${CURRENT_SECTION}.${TEST_NUM}: %s\n" "$1" |
| 40 | PASSED=$((PASSED + 1)) |
| 41 | } |
| 42 | |
| 43 | fail() { |
| 44 | TEST_NUM=$((TEST_NUM + 1)) |
| 45 | TEST_ID="${TEST_PREFIX} ${CURRENT_SECTION}.${TEST_NUM}" |
| 46 | printf "${RED}✗ FAIL${NC} ${TEST_ID}: %s\n" "$1" |
| 47 | FAILED_TESTS_LIST="${FAILED_TESTS_LIST} ${TEST_ID}: $1\n" |
| 48 | if [ -n "$2" ]; then printf " posix: %s\n" "$2"; fi |
| 49 | if [ -n "$3" ]; then printf " shell: %s\n" "$3"; fi |
| 50 | FAILED=$((FAILED + 1)) |
| 51 | } |
| 52 | |
| 53 | section() { |
| 54 | CURRENT_SECTION=$(echo "$1" | grep -oE '^[0-9]+' || echo "0") |
| 55 | TEST_NUM=0 |
| 56 | printf "\n${BLUE}==========================================\n%s\n==========================================${NC}\n" "$1" |
| 57 | } |
| 58 | |
| 59 | normalize_output() { sed -e 's|^[^ ]*/[a-z]*sh[0-9]*: |sh: |' -e 's|^[a-z]*sh[0-9]*: |sh: |' -e 's/line [0-9]*: //'; } |
| 60 | |
| 61 | compare_posix_output() { |
| 62 | test_name="$1"; command="$2" |
| 63 | posix_out=$("$BASH_REF" -c "$command" 2>&1 | normalize_output) |
| 64 | shell_out=$("$SHELL_BIN" -c "$command" 2>&1 | normalize_output) |
| 65 | if [ "$posix_out" = "$shell_out" ]; then pass "$test_name" |
| 66 | else fail "$test_name" "$posix_out" "$shell_out"; fi |
| 67 | } |
| 68 | |
| 69 | compare_posix_exit_code() { |
| 70 | test_name="$1"; command="$2" |
| 71 | "$BASH_REF" -c "$command" >/dev/null 2>&1; posix_code=$? |
| 72 | "$SHELL_BIN" -c "$command" >/dev/null 2>&1; shell_code=$? |
| 73 | if [ "$posix_code" = "$shell_code" ]; then pass "$test_name" |
| 74 | else fail "$test_name" "exit $posix_code" "exit $shell_code"; fi |
| 75 | } |
| 76 | |
| 77 | # ============================================================================ |
| 78 | # BASIC REDIRECTIONS |
| 79 | # ============================================================================ |
| 80 | |
| 81 | section "1. OUTPUT REDIRECTION" |
| 82 | compare_posix_output "redir out" 'echo test > /tmp/r$$; cat /tmp/r$$; rm /tmp/r$$' |
| 83 | compare_posix_output "redir in" 'echo test > /tmp/r$$; cat < /tmp/r$$; rm /tmp/r$$' |
| 84 | compare_posix_output "redir append" 'echo a > /tmp/r$$; echo b >> /tmp/r$$; cat /tmp/r$$; rm /tmp/r$$' |
| 85 | compare_posix_output "redir stderr" 'ls /nonexistent$$ 2>/dev/null; echo done' |
| 86 | |
| 87 | section "2. READ/WRITE REDIRECTION" |
| 88 | compare_posix_exit_code "redirect <> creates file" "echo test <> /tmp/posix_gaps_rw_$$; test -f /tmp/posix_gaps_rw_$$; rm -f /tmp/posix_gaps_rw_$$" |
| 89 | compare_posix_exit_code "redirect <> opens existing" "echo data > /tmp/posix_gaps_rw2_$$; cat <> /tmp/posix_gaps_rw2_$$ 2>/dev/null; rm -f /tmp/posix_gaps_rw2_$$" |
| 90 | |
| 91 | # ============================================================================ |
| 92 | # ADVANCED REDIRECTIONS |
| 93 | # ============================================================================ |
| 94 | |
| 95 | section "3. FD REDIRECTION" |
| 96 | compare_posix_output "redirect order matters" "echo test 2>&1 >/dev/null | wc -l" |
| 97 | compare_posix_output "redirect to same fd" "echo test >&1 2>&1" |
| 98 | compare_posix_output "redirect append" "echo a > /tmp/posix_gaps_redir_$$; echo b >> /tmp/posix_gaps_redir_$$; wc -l < /tmp/posix_gaps_redir_$$; rm -f /tmp/posix_gaps_redir_$$" |
| 99 | |
| 100 | section "4. HERE DOCUMENTS IN REDIRECT" |
| 101 | compare_posix_output "redirect here-string alternative" "cat <<EOF |
| 102 | test |
| 103 | EOF" |
| 104 | compare_posix_output "redirect duplicate stdin" "cat <&0 <<EOF |
| 105 | input |
| 106 | EOF" |
| 107 | |
| 108 | section "5. LOOP REDIRECTIONS" |
| 109 | compare_posix_output "redirect in loop" 'for i in 1 2 3; do echo $i; done > /tmp/redir_test_$$; cat /tmp/redir_test_$$; rm /tmp/redir_test_$$' |
| 110 | compare_posix_output "append multiple" 'echo a >> /tmp/app_test_$$; echo b >> /tmp/app_test_$$; cat /tmp/app_test_$$; rm /tmp/app_test_$$' |
| 111 | compare_posix_output "stderr to file" 'ls /nonexistent 2>/tmp/err_test_$$ || cat /tmp/err_test_$$ | wc -l; rm -f /tmp/err_test_$$' |
| 112 | |
| 113 | # ============================================================================ |
| 114 | # IFS FIELD SPLITTING |
| 115 | # ============================================================================ |
| 116 | |
| 117 | section "6. IFS FIELD SPLITTING" |
| 118 | compare_posix_output "IFS mixed ws and non-ws" "IFS=': \t'; VAR='a:b c:d'; set -- \$VAR; echo \$# \$1 \$2 \$3 \$4" |
| 119 | compare_posix_output "IFS multiple delimiters" "IFS=',:'; VAR='a,b:c,d'; set -- \$VAR; echo \$#" |
| 120 | compare_posix_output "IFS trailing delimiters" "IFS=:; VAR='a:b:c:'; set -- \$VAR; echo \$#" |
| 121 | compare_posix_output "IFS leading and trailing" "IFS=:; VAR=':a:b:'; set -- \$VAR; echo \$# \$1 \$2" |
| 122 | compare_posix_output "IFS consecutive delimiters" "IFS=:; VAR='a::b'; set -- \$VAR; echo \$# \$1 \$2 \$3" |
| 123 | compare_posix_output "IFS whitespace collapsing" "IFS=' '; VAR='a b c'; set -- \$VAR; echo \$#" |
| 124 | |
| 125 | # ============================================================================ |
| 126 | # COMMENTS |
| 127 | # ============================================================================ |
| 128 | |
| 129 | section "7. COMMENTS" |
| 130 | compare_posix_output "comment inline" 'echo yes # comment' |
| 131 | compare_posix_output "comment in dquote" 'echo "not # comment"' |
| 132 | compare_posix_output "comment in squote" "echo 'not # comment'" |
| 133 | |
| 134 | # ============================================================================ |
| 135 | # EXIT CODES |
| 136 | # ============================================================================ |
| 137 | |
| 138 | section "8. EXIT CODES" |
| 139 | compare_posix_exit_code "true exits 0" "true" |
| 140 | compare_posix_exit_code "false exits 1" "false" |
| 141 | compare_posix_exit_code "exit 0" "(exit 0)" |
| 142 | compare_posix_output "exit code chain" "true; echo \$?" |
| 143 | compare_posix_output "backtick vs dollar-paren" "a=\`echo test\`; b=\$(echo test); test \"\$a\" = \"\$b\" && echo same" |
| 144 | |
| 145 | # Summary |
| 146 | printf "\n==========================================\n" |
| 147 | printf "REDIRECTION GAP TEST RESULTS\n" |
| 148 | printf "==========================================\n" |
| 149 | printf "${GREEN}Passed:${NC} %d\n" "$PASSED" |
| 150 | printf "${RED}Failed:${NC} %d\n" "$FAILED" |
| 151 | printf "Total: %d\n" "$((PASSED + FAILED))" |
| 152 | if [ "$FAILED" -gt 0 ]; then |
| 153 | printf "\n${RED}Failed tests:${NC}\n%b" "$FAILED_TESTS_LIST" |
| 154 | exit 1 |
| 155 | fi |
| 156 | exit 0 |