redirection.yaml

name: "Redirection"
cases:
  - name: "Redirection to null"
    stdin: |
      echo hi >/dev/null

  - name: "Output redirection to file"
    stdin: |
      echo hi >out.txt
      ls out.txt
      cat out.txt

  - name: "Output redirection to file (append)"
    stdin: |
      echo hi >>out.txt
      echo there >>out.txt
      ls out.txt
      cat out.txt

  - name: "Input redirection from file"
    test_files:
      - path: "in.txt"
        contents: |
          Something here.
    stdin: |
      cat <in.txt

  - name: "Redirection to fd"
    stdin: |
      echo hi >&2

  - name: "Process substitution: basic"
    stdin: |
      shopt -u -o posix
      echo <(:) >(:)
      echo <(:) <(:)
      echo >(:) >(:)

  - name: "Process substitution: not in simple commands"
    known_failure: true # Known to fail because we are only handling them in simple commands now
    stdin: |
      shopt -u -o posix
      for f in <(echo hi); do echo $f; done

  - name: "Process substitution: builtins"
    stdin: |
      source <(echo VAR=100)
      echo "var: ${VAR}"

  - name: "Process substitution: input redirection"
    stdin: |
      shopt -u -o posix
      cat < <(echo hi)

  - name: "Process substitution: output redirection"
    skip: true # TODO: Test is flaky; needs work.
    stdin: |
      shopt -u -o posix
      echo hi > >(wc -l)
      echo hi >> >(wc -l)

  - name: "Process substitution: input"
    stdin: |
      shopt -u -o posix
      var="value"
      cat <(var="updated"; echo ${var})
      echo "Done."
      echo "${var}"

  - name: "Redirect stdout and stderr"
    stdin: |
      ls -d . non-existent-dir &>/dev/null
      ls -d . non-existent-dir &>>/dev/null

  - name: "Process substitution: input + output"
    stdin: |
      shopt -u -o posix
      cp <(echo hi) >(cat)