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diff --git a/tests/test-integration-grammar-checking.el b/tests/test-integration-grammar-checking.el
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-;;; test-integration-grammar-checking.el --- Integration tests for grammar checking -*- lexical-binding: t; -*-
-
-;;; Commentary:
-;; Integration tests for the LanguageTool wrapper script with real grammar checking.
-;; Tests the integration: test fixture → wrapper script → LanguageTool → formatted output
-;;
-;; Components integrated:
-;; - scripts/languagetool-flycheck (our wrapper script)
-;; - languagetool command (external grammar checker)
-;; - Test fixtures with known grammar errors
-;; - Output formatting (JSON → flycheck format)
-;;
-;; Focus: Testing OUR integration code (wrapper), not flycheck framework.
-;; We trust that flycheck works; we test that our wrapper produces correct output.
-;;
-;; Categories: Normal workflow, Boundary cases, Error handling
-
-;;; Code:
-
-(require 'ert)
-
-;; ----------------------------- Test Helpers ----------------------------------
-
-(defun test-integration-grammar--fixture-path (filename)
-  "Return absolute path to test fixture FILENAME."
-  (expand-file-name (concat "tests/fixtures/" filename)
-                    user-emacs-directory))
-
-(defun test-integration-grammar--wrapper-output (file-path)
-  "Run languagetool-flycheck wrapper directly on FILE-PATH.
-Returns output as string."
-  (let ((wrapper (expand-file-name "~/.emacs.d/scripts/languagetool-flycheck")))
-    (with-temp-buffer
-      (call-process wrapper nil t nil file-path)
-      (buffer-string))))
-
-;; ----------------------------- Normal Cases ----------------------------------
-
-(ert-deftest test-integration-grammar-checking-normal-wrapper-detects-errors ()
-  "Test that wrapper script detects grammar errors in fixture.
-
-Components integrated:
-- scripts/languagetool-flycheck (wrapper script)
-- languagetool command (external checker)
-- Test fixture with known errors"
-  (let* ((fixture (test-integration-grammar--fixture-path "grammar-errors-basic.txt"))
-         (output (test-integration-grammar--wrapper-output fixture)))
-    ;; Should detect "This are" error
-    (should (string-match-p "PLURAL_VERB_AFTER_THIS\\|This are" output))
-    ;; Should detect "could of" error
-    (should (string-match-p "COULD_OF\\|could of" output))
-    ;; Output should be in flycheck format (filename:line:column:)
-    (should (string-match-p "grammar-errors-basic\\.txt:[0-9]+:[0-9]+:" output))))
-
-(ert-deftest test-integration-grammar-checking-normal-wrapper-format ()
-  "Test that wrapper outputs flycheck-compatible format.
-
-Components integrated:
-- scripts/languagetool-flycheck (output formatting)
-- languagetool command (JSON parsing)"
-  (let* ((fixture (test-integration-grammar--fixture-path "grammar-errors-basic.txt"))
-         (output (test-integration-grammar--wrapper-output fixture))
-         (lines (split-string output "\n" t)))
-    (dolist (line lines)
-      ;; Each line should match: filename:line:column: message
-      (should (string-match "^[^:]+:[0-9]+:[0-9]+: " line)))))
-
-(ert-deftest test-integration-grammar-checking-normal-correct-text-no-errors ()
-  "Test that grammatically correct text produces no errors.
-
-Components integrated:
-- scripts/languagetool-flycheck (wrapper script)
-- languagetool command (validation)
-- Test fixture with correct grammar"
-  (let* ((fixture (test-integration-grammar--fixture-path "grammar-correct.txt"))
-         (output (test-integration-grammar--wrapper-output fixture)))
-    ;; Correct grammar should produce no output (or only whitespace)
-    (should (or (string-empty-p (string-trim output))
-                (= 0 (length (string-trim output)))))))
-
-;; ----------------------------- Boundary Cases --------------------------------
-
-(ert-deftest test-integration-grammar-checking-boundary-empty-file ()
-  "Test that empty file produces no errors.
-
-Components integrated:
-- scripts/languagetool-flycheck (empty input handling)
-- languagetool command"
-  (let ((temp-file (make-temp-file "grammar-test-" nil ".txt")))
-    (unwind-protect
-        (let ((output (test-integration-grammar--wrapper-output temp-file)))
-          (should (or (string-empty-p (string-trim output))
-                      (= 0 (length (string-trim output))))))
-      (delete-file temp-file))))
-
-(ert-deftest test-integration-grammar-checking-boundary-single-word ()
-  "Test that single word file produces no errors.
-
-Components integrated:
-- scripts/languagetool-flycheck (minimal input)
-- languagetool command"
-  (let ((temp-file (make-temp-file "grammar-test-" nil ".txt")))
-    (unwind-protect
-        (progn
-          (with-temp-file temp-file
-            (insert "Hello"))
-          (let ((output (test-integration-grammar--wrapper-output temp-file)))
-            ;; Single word might produce no errors or might flag as incomplete sentence
-            ;; Just verify it doesn't crash
-            (should (stringp output))))
-      (delete-file temp-file))))
-
-(ert-deftest test-integration-grammar-checking-boundary-multiple-paragraphs ()
-  "Test that file with multiple paragraphs is checked completely.
-
-Components integrated:
-- scripts/languagetool-flycheck (multi-paragraph handling)
-- languagetool command (full file processing)"
-  (let* ((fixture (test-integration-grammar--fixture-path "grammar-errors-basic.txt"))
-         (output (test-integration-grammar--wrapper-output fixture))
-         (lines (split-string output "\n" t)))
-    ;; Should detect errors in multiple lines
-    ;; Check that we have multiple error reports with different line numbers
-    (let ((line-numbers '()))
-      (dolist (line lines)
-        (when (string-match ":[0-9]+:" line)
-          (let ((line-num (string-to-number
-                           (nth 1 (split-string line ":")))))
-            (push line-num line-numbers))))
-      ;; Should have errors from multiple lines
-      (should (> (length (delete-dups line-numbers)) 1)))))
-
-;; ----------------------------- Error Cases -----------------------------------
-
-(ert-deftest test-integration-grammar-checking-error-nonexistent-file ()
-  "Test that wrapper handles nonexistent file with error.
-
-Components integrated:
-- scripts/languagetool-flycheck (error handling)
-- File system (missing file)
-- Python exception handling"
-  (let* ((nonexistent "/tmp/this-file-does-not-exist-12345.txt")
-         (wrapper (expand-file-name "~/.emacs.d/scripts/languagetool-flycheck"))
-         (exit-code nil)
-         (output nil))
-    (with-temp-buffer
-      (setq exit-code (call-process wrapper nil t nil nonexistent))
-      (setq output (buffer-string)))
-    ;; LanguageTool/Python should handle the error
-    ;; Check that we get output (error message or error in flycheck format)
-    (should (stringp output))
-    ;; Output should contain some indication of the error (filename or error marker)
-    (should (or (string-match-p nonexistent output)
-                (string-match-p "error" output)
-                (string-match-p "Error" output)
-                ;; Or it might report no errors for a nonexistent file
-                (string-empty-p (string-trim output))))))
-
-(ert-deftest test-integration-grammar-checking-error-no-file-argument ()
-  "Test that wrapper requires file argument.
-
-Components integrated:
-- scripts/languagetool-flycheck (argument validation)"
-  (let* ((wrapper (expand-file-name "~/.emacs.d/scripts/languagetool-flycheck"))
-         (exit-code nil))
-    (with-temp-buffer
-      (setq exit-code (call-process wrapper nil t nil))
-      ;; Should exit with non-zero status when no file provided
-      (should-not (= 0 exit-code)))))
-
-;; ----------------------------- Integration with Real Files -------------------
-
-(ert-deftest test-integration-grammar-checking-integration-comprehensive-errors ()
-  "Test that wrapper catches multiple types of grammar errors in one file.
-
-Components integrated:
-- scripts/languagetool-flycheck (our wrapper)
-- languagetool command (comprehensive checking)
-- Test fixture with various error types"
-  (let* ((fixture (test-integration-grammar--fixture-path "grammar-errors-basic.txt"))
-         (output (test-integration-grammar--wrapper-output fixture))
-         (lines (split-string output "\n" t)))
-    ;; Should detect multiple errors (at least 3-4 in the fixture)
-    (should (>= (length lines) 3))
-    ;; All lines should be properly formatted
-    (dolist (line lines)
-      (should (string-match "^[^:]+:[0-9]+:[0-9]+: " line)))))
-
-(provide 'test-integration-grammar-checking)
-;;; test-integration-grammar-checking.el ends here