add bash-it

dot_bash_it/test/lib/composure.bats

@@ -0,0 +1,13 @@
+# shellcheck shell=bats
+
+load "${MAIN_BASH_IT_DIR?}/test/test_helper.bash"
+
+function local_setup_file() {
+  true
+  # don't load any libraries as the tests here test the *whole* kit
+}
+
+@test "lib composure: _composure_keywords()" {
+  run _composure_keywords
+  assert_output "about author example group param version"
+}