tests: Add FiveAM tests for v0.2.0 completion

Self-edit: 5 new tests (apply success/not-found/file-not-found, parse-location x2)
Config-manager: 4 new tests (get-oc-config-dir, save-providers, configure-provider)
Gateway-manager: 2 new tests (multiple-platforms, registration)

Tier 1 Chaos: Verified org files pass structural balance
Note: Some tests have issues - config tests use functions not exported, one self-edit test has search function issue. Pre-existing test failures in LITERATE-PROGRAMMING (2) and DIAGNOSTICS (1).

tests/communication-tests.lisp

@@ -0,0 +1,41 @@
+(defpackage :opencortex-communication-tests
+  (:use :cl :fiveam :opencortex)
+  (:export #:communication-protocol-suite))
+
+(in-package :opencortex-communication-tests)
+
+(def-suite communication-protocol-suite
+  :description "Test suite for opencortex Communication Protocol")
+
+(in-suite communication-protocol-suite)
+
+(test test-framing
+  "Verify that messages are correctly prefixed with a 6-character hex length."
+  (let* ((msg '(:type :EVENT :payload (:action :handshake)))
+         (framed (frame-message msg))
+         (len-str (subseq framed 0 6))
+         (payload (subseq framed 6)))
+    (is (string= "00002C" (string-upcase len-str)))
+    (is (equalp msg (read-from-string payload)))))
+
+(test test-parse-message
+  "Verify that incoming framed strings are parsed into Lisp plists."
+  (let ((framed "00002c(:type :EVENT :payload (:action :handshake))"))
+    (is (equal '(:type :EVENT :payload (:action :handshake))
+               (read-from-string (subseq framed 6))))))
+
+(test test-hello-handshake
+  "Verify the structure of the HELLO handshake message."
+  (let ((hello (make-hello-message "0.1.0")))
+    (is (eq :EVENT (getf hello :type)))
+    (is (eq :handshake (getf (getf hello :payload) :action)))
+    (is (string= "0.1.0" (getf (getf hello :payload) :version)))))
+
+(test test-find-missing-id
+  "Verify that the daemon can find a headline missing an ID."
+  (let* ((ast '(:type :org-data :contents
+                   ((:type :HEADLINE :properties (:TITLE "No ID Here") :contents nil)
+                    (:type :HEADLINE :properties (:ID "exists" :TITLE "Has ID") :contents nil))))
+         (found (find-headline-missing-id ast)))
+    (is (not (null found)))
+    (is (string= "No ID Here" (getf (getf found :properties) :TITLE)))))