1 files changed, 45 insertions, 0 deletions
diff --git a/sort-test.csc b/sort-test.csc
new file mode 100644
index 0000000..b922484
--- /dev/null
+++ b/sort-test.csc
@@ -0,0 +1,45 @@
+(import (scheme base)
+        (only (csc testing)
+              define-test
+              errorf)
+        (csc sort))
+
+
+(define-test (test-sort t)
+  (define-record-type <test-case>
+    (test-case desc xs want)
+    test-case?
+    (desc desc)
+    (xs xs)
+    (want want))
+  (let ((tests (list
+                 (test-case
+                   "ten elem"
+                   '(9 4 5 100 3 2 4 6 0 -2)
+                   '(-2 0 2 3 4 4 5 6 9 100))
+                 (test-case
+                   "empty"
+                   '()
+                   '())
+                 (test-case
+                   "singleton"
+                   '(1)
+                   '(1))
+                 (test-case
+                   "two"
+                   '(2 1)
+                   '(1 2))
+                 (test-case
+                   "reversed"
+                   '(20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1)
+                   '(1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20))
+                 (test-case
+                   "already sorted"
+                   '(1 2 3 4 5 6 7 8 9 10)
+                   '(1 2 3 4 5 6 7 8 9 10)))))
+    (for-each
+      (lambda (tc)
+        (let ((got (sort (lambda (x1 x2) (< x1 x2)) (xs tc))))
+          (unless (equal? got (want tc))
+            (errorf t "(sort {}) = {}, want {}." (xs tc) got (want tc)))))
+      tests)))