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+;;; test-snakemake-mode.el --- Tests for snakemake-mode.el
+
+;; Copyright (C) 2015 Kyle Meyer <kyle@kyleam.com>
+
+;; Author:  Kyle Meyer <kyle@kyleam.com>
+
+;; This program is free software; you can redistribute it and/or modify
+;; it under the terms of the GNU General Public License as published by
+;; the Free Software Foundation, either version 3 of the License, or
+;; (at your option) any later version.
+
+;; This program is distributed in the hope that it will be useful,
+;; but WITHOUT ANY WARRANTY; without even the implied warranty of
+;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+;; GNU General Public License for more details.
+
+;; You should have received a copy of the GNU General Public License
+;; along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+;;; Code:
+
+(require 'snakemake-mode)
+(require 'ert)
+
+;; This is modified from `org-tests.el' (55c0708).
+(defmacro snakemake-with-temp-text (text &rest body)
+  "Run body in a temporary buffer with Snakemake mode as the
+active mode holding TEXT.  If the string \"<point>\" appears in
+TEXT then remove it and place the point there before running
+BODY, otherwise place the point at the beginning of the inserted
+text."
+  (declare (indent 1))
+  `(let ((inside-text (if (stringp ,text) ,text (eval ,text))))
+     (with-temp-buffer
+       (snakemake-mode)
+       (let ((point (string-match "<point>" inside-text)))
+         (if point
+             (progn
+               (insert (replace-match "" nil nil inside-text))
+               (goto-char (1+ (match-beginning 0))))
+           (insert inside-text)
+           (goto-char (point-min))))
+       ,@body)))
+(def-edebug-spec org-test-with-temp-text (form body))
+
+
+(ert-deftest test-snakemake-mode/indentation ()
+  "Test `snakemake-indent-line'."
+
+  ;; At top of rule block
+  (should
+   (string=
+    "rule abc:"
+    (snakemake-with-temp-text
+     "rule abc:"
+     (snakemake-indent-line)
+     (buffer-string))))
+
+  ;; At top of rule block, repeated
+  (should
+   (string=
+    "rule abc:"
+    (snakemake-with-temp-text
+     "rule abc:"
+     (snakemake-indent-line)
+     (snakemake-indent-line)
+     (buffer-string))))
+
+  ;; Below a rule block
+  (should
+   (string=
+    "
+rule abc:
+    "
+    (snakemake-with-temp-text
+     "
+rule abc:
+<point>"
+     (snakemake-indent-line)
+     (buffer-string))))
+
+  ;; Below a rule block, repeated
+  (should
+   (string=
+    "
+rule abc:
+"
+    (snakemake-with-temp-text
+     "
+rule abc:
+<point>"
+     (snakemake-indent-line)
+     (snakemake-indent-line)
+     (buffer-string))))
+
+  ;; At rule field key.
+  (should
+   (string=
+    "
+rule abc:
+    output:"
+    (snakemake-with-temp-text
+     "
+rule abc:
+<point>output:"
+     (snakemake-indent-line)
+     (buffer-string))))
+
+  ;; At rule field key, repeated
+  (should
+   (string=
+    "
+rule abc:
+    output:"
+    (snakemake-with-temp-text
+     "
+rule abc:
+<point>output:"
+     (snakemake-indent-line)
+     (snakemake-indent-line)
+     (buffer-string))))
+
+  ;; Below a filled rule field key
+  (should
+   (string=
+    "
+rule abc:
+    output: 'file'
+    "
+    (snakemake-with-temp-text
+     "
+rule abc:
+    output: 'file'
+<point>"
+     (snakemake-indent-line)
+     (buffer-string))))
+
+  ;; Below a filled rule field key, repeated once
+  (should
+   (string=
+    "
+rule abc:
+    output: 'file'
+            "
+    (snakemake-with-temp-text
+     "
+rule abc:
+    output: 'file'
+<point>"
+     (snakemake-indent-line)
+     (snakemake-indent-line)
+     (buffer-string))))
+
+  ;; Below a filled rule field key, repeated twice
+  (should
+   (string=
+    "
+rule abc:
+    output: 'file'
+"
+    (snakemake-with-temp-text
+     "
+rule abc:
+    output: 'file'
+<point>"
+     (snakemake-indent-line)
+     (snakemake-indent-line)
+     (snakemake-indent-line)
+     (buffer-string))))
+
+  ;; Body of a run field
+  (should
+   (string=
+    "
+rule abc:
+    run:
+        with this:
+            "
+    (snakemake-with-temp-text
+     "
+rule abc:
+    run:
+        with this:
+<point>"
+     (snakemake-indent-line)
+     (buffer-string))))
+
+  ;; Outside a rule block
+  (should
+   (string=
+    "
+def ok():
+    "
+    (snakemake-with-temp-text
+     "
+def ok():
+<point>"
+     (snakemake-indent-line)
+     (buffer-string)))))
+
+(ert-deftest test-snakemake-mode/in-rule-block ()
+  "Test `snakemake-in-rule-or-subworkflow-block-p'"
+
+  ;; At top of block
+  (snakemake-with-temp-text
+   "
+<point>rule abc:
+    output: 'file'"
+   (should (snakemake-in-rule-or-subworkflow-block-p)))
+
+  ;; Body of block
+  (snakemake-with-temp-text
+   "
+rule abc:
+    output: <point>'file'"
+   (should (snakemake-in-rule-or-subworkflow-block-p)))
+
+  ;; First blank line after
+  (snakemake-with-temp-text
+   "
+rule abc:
+    output: 'file'
+<point>"
+   (should (snakemake-in-rule-or-subworkflow-block-p)))
+
+  ;; Second blank line after
+  (snakemake-with-temp-text
+   "
+rule abc:
+    output: 'file'
+
+<point>"
+   (should-not (snakemake-in-rule-or-subworkflow-block-p)))
+
+  ;; Before
+  (snakemake-with-temp-text
+   "<point>
+rule abc:
+    output: 'file'"
+   (should-not (snakemake-in-rule-or-subworkflow-block-p)))
+
+  ;; Subworkflow
+  (snakemake-with-temp-text
+   "
+subworkflow otherworkflow:
+<point>    workdir: '../path/to/otherworkflow'
+    snakefile: '../path/to/otherworkflow/Snakefile'"
+   (should (snakemake-in-rule-or-subworkflow-block-p))))
+
+(ert-deftest test-snakemake-mode/run-field-line-p ()
+  "Test `snakemake-run-field-line-p'."
+  (snakemake-with-temp-text
+   "
+rule abc:
+    run:
+<point>"
+   (should (snakemake-run-field-line-p)))
+  (snakemake-with-temp-text
+   "
+rule abc:
+    run:
+        with file:
+<point>"
+   (should (snakemake-run-field-line-p)))
+  (snakemake-with-temp-text
+   "
+rule abc:
+    output: 'file'
+<point>"
+   (should-not (snakemake-run-field-line-p))))
+
+(ert-deftest test-snakemake-mode/previous-field-value-column ()
+  "Test `snakemake-previous-field-value-column'."
+  (should (= 12
+             (snakemake-with-temp-text
+              "
+rule abc:
+    output: 'file'
+<point>"
+              (snakemake-previous-field-value-column))))
+  (should (= 12
+             (snakemake-with-temp-text
+              "
+rule abc:
+    output: 'file',
+            'another'
+<point>"
+              (snakemake-previous-field-value-column)))))
+
+
+(provide 'test-snakemake-mode)
+;;; test-snakemake-mode.el ends here