proc setup {} {
    save_env
}

proc teardown {} {
    assert_env_unmodified {/OLDPWD=/d}
}

proc run_completion_test {cmd test candidates} {
    send_log "\nTESTING: $test\n";
    verbose "Sending ${cmd}\t..."
    send "${cmd}\t"

    expect "${cmd}\r\n"
    expect {
        -re $candidates { send_log "\n"; pass "$test" }
        -re /@ { send_log "\n"; unresolved "$test at prompt" }
        default { send_log "\n"; unresolved "$test" }
    }
    sync_after_int
}

setup


    # Try completion with one hyphen
set cmd "basicExample -"
set test "Tab should show options for '$cmd'"
set candidates "--timeUnit\\s*--timeout\\s*-t\\s*-u\r\n/@$cmd|-t\\s*--timeout\\s*--timeUnit\\s*-u\r\n/@$cmd"
run_completion_test $cmd $test $candidates


    # Try completion with two hyphens
set cmd "basicExample --"
set test "Tab should show options for '$cmd' and add shared prefix 'time' after command"
set candidates "--timeUnit\\s*--timeout\r\n/@${cmd}time|--timeout\\s*--timeUnit\r\n/@${cmd}time"
run_completion_test $cmd $test $candidates


#exp_internal 1 # tell Expect to print diagnostics on its internal operations
    # Try completion with --timeUnit
set cmd "basicExample --timeUnit "
set test "Tab should show time unit enum values for '$cmd'"
set candidates "DAYS\\s*HOURS\\s*MICROSECONDS\\s*MILLISECONDS\\s*MINUTES\\s*NANOSECONDS\\s*SECONDS\r\n/@${cmd}"
run_completion_test $cmd $test $candidates


teardown