Add test for version

Author: Akeboshiwind

test/test-version.bats

@@ -0,0 +1,20 @@
+#!./test/libs/bats/bin/bats
+
+load 'helpers'
+
+setup() {
+  setupNotesEnv
+}
+
+teardown() {
+  teardownNotesEnv
+}
+
+notes="./notes"
+
+@test "Should print version successfully if requested" {
+  run $notes --version
+
+  assert_success
+  assert_line --regexp '^.+ [0-9]\.[0-9]\.[0-9]$'
+}