Pipping echo command prints to output about shellspec HOT 2 OPEN

# Constants accessed from functions
% DATE_STR: dom 26 mar 2023 22:38:45
% LOG_DIR: .
% LOG_PATH: "$LOG_DIR/$DATE_STR test_env_builder.log"
#######################################

Mock date
    if [ ! -e "$date_lock" ]; then
        echo $DATE_STR
        touch "$date_lock"
    else
        echo dom 26 mar 2023 22:38:46
    fi
End
export "DATE_STR"

Context 'log'
    Include $script_file

    Context 'usage: caller'

        It 'should redirect the stdout to the file setted by log'

            usage() {
                log
                echo 'test message' &>> "$LOG_FILE"
            }

            When call usage

            The file "$LOG_PATH" should be a file
            The file "$LOG_PATH" should not be a empty file
            The file "$LOG_PATH" should be readable

            The output should equal "" 
        End
    End

    It 'should set the log file with the right format'
        When call log

        The variable "LOG_FILE" should equal "$LOG_PATH"
    End

    It 'should set the log file path one time only'
        log_twice() {
            log
            log
        }

        When call log_twice

        The variable "LOG_FILE" should equal "$LOG_PATH"
    End
End

LOG_FILE="$SHELLSPEC_TMPDIR/test"

remove_logs() {
    rm "$LOG_FILE"
}

Context 'log'
    AfterEach 'remove_logs'
    File log_file="$LOG_FILE"
    log_to_file(){
      echo 'test message' >> "$LOG_FILE"
    }


    It 'should log a message to file'
        When call echo 'toto' >> "$LOG_FILE"

        The file log_file should be a file
        The file log_file should not be a empty file
        The file log_file should be readable
        The length of output should equal 0
    End
End