fix(core): add docstrings and improve tests

Also add editorconfig script

3 files changed, 23 insertions, 4 deletions

diff --git a/.editorconfig b/.editorconfig
new file mode 100644
index 0000000..14919c3
--- /dev/null
+++ b/.editorconfig
@@ -0,0 +1,14 @@
+# Cross-editor formatting rules
+# see: https://editorconfig.org
+
+root = true
+
+[*]
+charset=utf-8
+end_of_line=lf
+insert_final_newline=true
+trim_trailing_whitespace=true
+
+[*.lua]
+indent_size=4
+indent_style=space
diff --git a/core.fnl b/core.fnl
index 9f6f5aa..e004d72 100644
--- a/core.fnl
+++ b/core.fnl
@@ -380,8 +380,8 @@ oppisite truth value."
   (when-some [tbl (seq tbl)]
     (reduce -consj [] tbl)))
 
-(fn& core.inc [x] (+ x 1))
-(fn& core.dec [x] (- x 1))
+(fn* core.inc "Increase number by one" [x] (+ x 1))
+(fn* core.dec "Decrease number by one" [x] (- x 1))
 
 (fn* core.assoc
   "Associate key `k' with value `v' in `tbl'."
diff --git a/core_test.fnl b/core_test.fnl
index c618e9e..25f9e1d 100644
--- a/core_test.fnl
+++ b/core_test.fnl
@@ -423,10 +423,15 @@
 (deftest math-functions
   (testing inc
     (assert-eq (inc 1) 2)
-    (assert-eq (inc -1) 0))
+    (assert-eq (inc -1) 0)
+    (assert* (not (pcall inc)))
+    (assert* (not (pcall inc nil))))
+
   (testing dec
     (assert-eq (dec 1) 0)
-    (assert-eq (dec -1) -2)))
+    (assert-eq (dec -1) -2)
+    (assert* (not (pcall dec)))
+    (assert* (not (pcall dec nil)))))
 
 (deftest table-access
   (testing get