extended_tests.yaml

name: "Extended tests"
cases:
  - name: "File extended tests"
    stdin: |
      [[ -a /tmp ]] && echo "-a correctly checked /tmp"
      [[ -a /some/non/existent/path ]] || echo "-a correctly checked non-existent path"

      [[ -c /dev/null ]] && echo "-c correctly checked /dev/null"
      [[ -c /tmp ]] || echo "-c correctly checked /tmp"

      [[ -d /tmp ]] && echo "-d correctly checked /tmp"
      [[ -d /dev/null ]] || echo "-d correctly checked /dev/null"

  - name: "File regular tests"
    stdin: |
      [[ -f non-existent ]] || echo "-f correctly identified non-existent path"
      [[ ! -f non-existent ]] && echo "! -f correctly identified non-existent path"

      touch test-file
      [[ -f test-file ]] && echo "-f correctly identified regular file"

      mkdir test-dir
      [[ -f test-dir ]] || echo "-f correctly identified directory as non-regular file"

  - name: "File symbolic link tests"
    stdin: |
      [[ -L non-existent ]] || echo "-L correctly identified non-existent path"

      touch test-file
      [[ -L test-file ]] || echo "-L correctly identified non-link file"

      ln -s test-file valid-link
      [[ -L valid-link ]] && echo "-L correctly identified valid symbolic link"

      ln -s non-existent-target dangling-link
      [[ -L dangling-link ]] && echo "-L correctly identified dangling symbolic link"

  - name: "File sticky bit tests"
    stdin: |
      touch test-file
      [[ -k test-file ]] || echo "-k correctly identified file without sticky bit"

      chmod 1600 test-file
      [[ -k test-file ]] && echo "-k correctly identified file with sticky bit"

  - name: "Fifo test"
    stdin: |
      touch test-file
      [[ -p test-file ]] || echo "-p correctly identified non-fifo file"

      mkfifo fifo-file
      [[ -p test-file ]] && echo "-p correctly identified fifo file"

  - name: "File executable tests"
    stdin: |
      [[ -x non-existent ]] || echo "-x correctly identified non-existent path"

      touch test-file
      ln -sf link test-file
      [[ -x test-file ]] || echo "-x correctly identified non-executable file"
      [[ -x link ]] || echo "-x correctly identified link to non-executable file"

      chmod o+x test-file
      [[ -x test-file ]] || echo "-x correctly identified other-only-executable file"
      [[ -x link ]] || echo "-x correctly identified link to other-only-executable file"

      chmod a+x test-file
      [[ -x test-file ]] && echo "-x correctly identified executable file"
      [[ -x link ]] && echo "-x correctly identified link to executable file"

  - name: "File writable tests"
    stdin: |
      [[ -w non-existent ]] || echo "-w correctly identified non-existent path"

      touch test-file
      ln -sf link test-file
      [[ -w test-file ]] || echo "-w correctly identified non-writable file"
      [[ -w link ]] || echo "-w correctly identified link to non-writable file"

      chmod o+x test-file
      [[ -w test-file ]] || echo "-w correctly identified other-only-writable file"
      [[ -w link ]] || echo "-w correctly identified link to other-only-writable file"

      chmod a+x test-file
      [[ -w test-file ]] && echo "-w correctly identified writable file"
      [[ -w link ]] && echo "-w correctly identified link to writable file"

  - name: "Unary string extended tests"
    stdin: |
      [[ -z "" ]] && echo "-z: Pass"
      [[ -z "something" ]] && echo "-z: Fail"

      [[ -n "something" ]] && echo "-n: Pass"
      [[ -n "" ]] && echo "-n: Fail"

  - name: "Shell option extended tests"
    stdin: |
      set -o emacs
      [[ -o emacs ]] && echo "1: option enabled"

      set +o emacs
      [[ -o emacs ]] && echo "2: option enabled"

  - name: "Binary string extended tests"
    stdin: |
      [[ "" == "" ]] && echo "1. Pass"
      [[ "" = "" ]] && echo "2. Pass"
      [[ "" != "" ]] && echo "3. Fail"

      [[ "a" != "b" ]] && echo "4. Pass"
      [[ "a" = "b" ]] && echo "5. Fail"
      [[ "a" == "b" ]] && echo "6. Fail"

      [[ "a" < "b" ]] && echo "7. Pass"
      [[ "a" < "a" ]] && echo "8. Fail"
      [[ "b" < "a" ]] && echo "9. Fail"
      [[ "a" > "b" ]] && echo "10. Fail"
      [[ "a" > "a" ]] && echo "11. Fail"
      [[ "b" > "a" ]] && echo "12. Pass"

  - name: "Binary string matching"
    stdin: |
      [[ "abc" == a* ]] && echo "1. Pass"
      [[ "abc" != a* ]] && echo "2. Fail"
      [[ a* != "abc" ]] && echo "3. Pass"

  - name: "Binary string matching with expansion"
    stdin: |
      exclude="0123456789"
      [[ "clue" == +([$exclude]) ]] && echo "1. Fail"
      [[ "8675309" == +([$exclude]) ]] && echo "2. Pass"

  - name: "Quoted pattern binary string matching"
    stdin: |
      [[ "abc" == "a*" ]] && echo "1. Matches"
      [[ "abc" != "a*" ]] && echo "2. Matches"

  - name: "Tilde binary string matching"
    known_failure: true
    stdin: |
      x='~/'
      [[ $x == ~* ]] && echo "1. Matches"

  - name: "Arithmetic extended tests"
    stdin: |
      [[ 0 -eq 0 ]] && echo "1. Pass"
      [[ 0 -ne 0 ]] && echo "2. Fail"
      [[ 0 -lt 0 ]] && echo "3. Fail"
      [[ 0 -le 0 ]] && echo "4. Pass"
      [[ 0 -gt 0 ]] && echo "5. Fail"
      [[ 0 -ge 0 ]] && echo "6. Pass"

      [[ 0 -eq 1 ]] && echo "7. Fail"
      [[ 0 -ne 1 ]] && echo "8. Pass"
      [[ 0 -lt 1 ]] && echo "9. Pass"
      [[ 0 -le 1 ]] && echo "10. Pass"
      [[ 0 -gt 1 ]] && echo "11. Fail"
      [[ 0 -ge 1 ]] && echo "12. Fail"

      [[ 1 -eq 0 ]] && echo "13. Fail"
      [[ 1 -ne 0 ]] && echo "14. Pass"
      [[ 1 -lt 0 ]] && echo "15. Fail"
      [[ 1 -le 0 ]] && echo "16. Fail"
      [[ 1 -gt 0 ]] && echo "17. Pass"
      [[ 1 -ge 0 ]] && echo "18. Pass"

  - name: "Regex"
    stdin: |
      [[ "a" =~ ^a$ ]]   && echo "1. Pass"
      [[ "abc" =~ a* ]]  && echo "2. Pass"
      [[ a =~ ^(a)$ ]]   && echo "3. Pass"
      [[ a =~ ^(a|b)$ ]] && echo "4. Pass"
      [[ a =~ c ]]       && echo "5. Pass"

  - name: "Regex with case insensitivity"
    stdin: |
      shopt -u nocasematch
      [[ "a" =~ A ]] && echo "1. Pass"

      shopt -s nocasematch
      [[ "a" =~ A ]] && echo "1. Pass"

  - name: "Regex with capture"
    stdin: |
      pattern='(Hello), ([a-z]+)\.'
      if [[ "Hello, world." =~ ${pattern} ]]; then
          echo "Match found!"
          for i in "${!BASH_REMATCH[@]}"; do
              echo "$i: '${BASH_REMATCH[$i]}'"
          done
      fi

  - name: "Regex with capture including optional matches"
    stdin: |
      pattern='(Hello)(,?) ([a-z]+)\.'
      if [[ "Hello world." =~ ${pattern} ]]; then
          echo "Match found!"
          for i in "${!BASH_REMATCH[@]}"; do
              echo "$i: '${BASH_REMATCH[$i]}'"
          done
      fi

  - name: "Regex with quoting"
    stdin: |
      regex="^$"

      # TODO: The commented out lines appear differ in behavior between versions of bash.
      # [[ "" =~ ''         ]] && echo "1. Matched"
      [[ "" =~ '^$'       ]] && echo "2. Matched"
      # [[ "" =~ ""         ]] && echo "3. Matched"
      [[ "" =~ "^$"       ]] && echo "4. Matched"
      [[ "" =~ ^$         ]] && echo "5. Matched"
      [[ "" =~ ${regex}   ]] && echo "6. Matched"
      [[ "" =~ "${regex}" ]] && echo "7. Matched"

  - name: "Regex with escaping"
    stdin: |
      [[ '' =~ ^\$$ ]] && echo "1. Matched"

  - name: "Regex with double parens"
    stdin: |
      if [[ xy =~ x+((y)) ]]; then
        echo "Matches"
      fi

  - name: "Regex with special chars in parens"
    stdin: |
      [[ "<" =~ (<) ]] && echo "1. Matched"
      [[ ">" =~ (<) ]] && echo "2. Matched"

  - name: "Empty and space checks"
    stdin: |
      check() {
        var="$1"
        [[ ${var} && ! ${var//[[:space:]]/} ]]
      }

      check ""    && echo "1. Only space"
      check " "   && echo "2. Only space"
      check $'\t' && echo "3. Only space"
      check " a " && echo "4. Only space"

  - name: "Newlines in test expression"
    stdin: |
      [[
        "a" == "a"
        &&
        "b" == "b"
      ]] && echo "Succeeded"