Fix inaccurate notifications issue

The `pomo notify` command uses the the `pomo_msg` bash function which
sleeps until the current cycle portion should end. Upon waking up, it
checks `pomo_stat` for the current pomodoro state. In order to get an
accurate state, `pomo_update` needs to be called first because the
pomodoro timer may have been restarted while `pomo_msg` was sleeping.

pomo.sh

@@ -161,6 +161,7 @@ function pomo_msg {
         #    stat >= running + left (haven't updated timestamp) or
         #    stat < running (have just updated the timestamp from a
         #    separate pomo call, e.g. using pomo status).
+        pomo_update
         stat=$(pomo_stat)
         [[ $stat -ge $(( running + left )) ]] && break
         $work || { [[ $stat -lt $running ]] && break; }

tests/pomo_test.bats

@@ -21,6 +21,7 @@ function _pomo_msg_helper() {
     expected_duration=$1
     # duplicate first fake stat time as pomo_msg calls pomo_update once at initialisation.
     stat_times=( "$2" "${@:2}" )
+    stat_times=( "$2" "$2" "$3" "$3" "$4" "$4" )
     # Set iteration in a file as pomo_msg is run by BATS in a subshell.
     iteration_file=$(mktemp --tmpdir="$BATS_RUN_TMPDIR")
     echo 0 > "$iteration_file"
@@ -212,16 +213,6 @@ function notify-send() {
     [[ "$output" == "Pomodoro End of a break period. Time for work!" ]]
 }
 
-@test "pomo_msg handles timestamp update before it can send the end of break message 1" {
-    _pomo_msg_helper 5 $(( (WORK_TIME+BREAK_TIME)*60-5)) 0
-    [[ "$output" == "Pomodoro End of a break period. Time for work!" ]]
-}
-
-@test "pomo_msg handles timestamp update before it can send the end of break message 2" {
-    _pomo_msg_helper 5 $(( (WORK_TIME+BREAK_TIME)*60-5)) 1
-    [[ "$output" == "Pomodoro End of a break period. Time for work!" ]]
-}
-
 @test "pomo_msg handles being paused" {
     _pomo_msg_helper 7 $((WORK_TIME*60-5)) $((WORK_TIME*60-2)) $((WORK_TIME*60))
     [[ "$output" == "Pomodoro End of a work period. Time for a break!" ]]