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;;; test-ai-config-model-to-symbol.el --- Tests for cj/gptel--model-to-symbol -*- lexical-binding: t; -*-
;;; Commentary:
;; Tests for cj/gptel--model-to-symbol from ai-config.el.
;;
;; Pure function that coerces a model identifier (string, symbol, or other
;; type) to a symbol. `gptel-model' MUST be a symbol -- gptel's modeline
;; code calls `symbolp' on it and signals wrong-type-argument on a string,
;; which manifests as a redisplay hang. The function's invariant is that
;; the result is always a symbol, so a value coerced through it is safe to
;; assign to `gptel-model'.
;;; Code:
(require 'ert)
(add-to-list 'load-path (expand-file-name "tests" user-emacs-directory))
(add-to-list 'load-path (expand-file-name "modules" user-emacs-directory))
(require 'testutil-ai-config)
(require 'ai-config)
;;; Normal Cases
(ert-deftest test-ai-config-model-to-symbol-normal-string-interns ()
"Normal: a string model name is interned to the matching symbol."
(should (eq (cj/gptel--model-to-symbol "claude-opus-4-8") 'claude-opus-4-8)))
(ert-deftest test-ai-config-model-to-symbol-normal-symbol-returns-symbol ()
"Normal: a symbol model name is returned unchanged."
(should (eq (cj/gptel--model-to-symbol 'gpt-4o) 'gpt-4o)))
(ert-deftest test-ai-config-model-to-symbol-normal-result-always-symbol ()
"Normal: the invariant -- the result is always a symbol (the crash guard)."
(should (symbolp (cj/gptel--model-to-symbol "gpt-5.5")))
(should (symbolp (cj/gptel--model-to-symbol 'gpt-5.5))))
;;; Boundary Cases
(ert-deftest test-ai-config-model-to-symbol-boundary-empty-string-is-symbol ()
"Boundary: empty string interns to a symbol (still satisfies the invariant)."
(should (symbolp (cj/gptel--model-to-symbol ""))))
(ert-deftest test-ai-config-model-to-symbol-boundary-nil-returns-nil ()
"Boundary: nil is already a symbol, returned unchanged."
(should (eq (cj/gptel--model-to-symbol nil) nil))
(should (symbolp (cj/gptel--model-to-symbol nil))))
(ert-deftest test-ai-config-model-to-symbol-boundary-string-with-spaces-interns ()
"Boundary: a string with spaces interns to a single symbol with that name."
(should (eq (cj/gptel--model-to-symbol "model with spaces")
(intern "model with spaces"))))
;;; Error/Odd Cases
(ert-deftest test-ai-config-model-to-symbol-number-formats-then-interns ()
"Error: a non-string, non-symbol value is formatted then interned to a symbol."
(should (eq (cj/gptel--model-to-symbol 42) (intern "42")))
(should (symbolp (cj/gptel--model-to-symbol 42))))
(provide 'test-ai-config-model-to-symbol)
;;; test-ai-config-model-to-symbol.el ends here
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