test: splits monolith into a bats file for each subcommand

test/stop.bats

@@ -0,0 +1,34 @@
+#!/usr/bin/env bats
+
+load test_helper
+
+@test "stop removes an alarm by ID" {
+  run_nag at "tomorrow 3pm" "take a break"
+  run_nag stop 1
+  [ "${status}" -eq 0 ]
+  [[ "${output}" =~ "Stopped alarm 1" ]]
+  run_nag
+  [[ "${output}" =~ "Nothing to nag about" ]]
+}
+
+@test "stop removes only the targeted alarm" {
+  run_nag at "tomorrow 3pm" "first"
+  run_nag at "tomorrow 4pm" "second"
+  run_nag at "tomorrow 5pm" "third"
+  run_nag stop 2
+  [ "${status}" -eq 0 ]
+  run_nag
+  [[ "${output}" =~ "first" ]]
+  [[ ! "${output}" =~ "second" ]]
+  [[ "${output}" =~ "third" ]]
+}
+
+@test "stop with nonexistent ID fails" {
+  run_nag stop 99
+  [ "${status}" -eq 1 ]
+}
+
+@test "stop without ID fails" {
+  run_nag stop
+  [ "${status}" -eq 1 ]
+}