refactor(prog-general): dedup the deadgrep search tail, lift its helpers

cj/deadgrep-here and cj/deadgrep-in-dir repeated the same normalize-directory + read-term + invoke-deadgrep tail. Lift cj/deadgrep--initial-term out of :config and add cj/--deadgrep-run for the shared tail; each command resolves its root then delegates. Adds coverage for the term seeding and the run helper.

1 files changed, 44 insertions, 0 deletions

diff --git a/tests/test-prog-general--deadgrep.el b/tests/test-prog-general--deadgrep.el
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index 000000000..21223105d
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+++ b/tests/test-prog-general--deadgrep.el
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+;;; test-prog-general--deadgrep.el --- Tests for the deadgrep helpers -*- lexical-binding: t; -*-
+
+;;; Commentary:
+;; cj/deadgrep--initial-term (region text or symbol at point) and cj/--deadgrep-run
+;; (the normalize-root + read-term + invoke tail shared by cj/deadgrep-here and
+;; cj/deadgrep-in-dir) were lifted out of the deadgrep use-package :config.
+;; deadgrep is mocked at the boundary.
+
+;;; Code:
+
+(require 'ert)
+(require 'cl-lib)
+
+(add-to-list 'load-path (expand-file-name "modules" user-emacs-directory))
+(require 'prog-general)
+
+(ert-deftest test-prg-deadgrep-initial-term-symbol-at-point ()
+  "Normal: with no region, the symbol at point seeds the search."
+  (with-temp-buffer
+    (insert "hello world")
+    (goto-char (point-min))
+    (should (equal (cj/deadgrep--initial-term) "hello"))))
+
+(ert-deftest test-prg-deadgrep-initial-term-region ()
+  "Normal: an active region's text seeds the search."
+  (with-temp-buffer
+    (insert "needle")
+    (transient-mark-mode 1)
+    (set-mark (point-min))
+    (goto-char (point-max))
+    (activate-mark)
+    (should (equal (cj/deadgrep--initial-term) "needle"))))
+
+(ert-deftest test-prg-deadgrep-run-normalizes-root-and-passes-term ()
+  "Normal: ROOT is normalized to a directory and TERM is passed through."
+  (let (got-term got-root)
+    (cl-letf (((symbol-function 'deadgrep)
+               (lambda (term root) (setq got-term term got-root root))))
+      (cj/--deadgrep-run "/tmp/foo" "needle"))
+    (should (equal got-term "needle"))
+    (should (equal got-root "/tmp/foo/"))))
+
+(provide 'test-prog-general--deadgrep)
+;;; test-prog-general--deadgrep.el ends here