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-rw-r--r--tests/012/seq.tl11
1 files changed, 11 insertions, 0 deletions
diff --git a/tests/012/seq.tl b/tests/012/seq.tl
index 262c7739..c3000b5e 100644
--- a/tests/012/seq.tl
+++ b/tests/012/seq.tl
@@ -883,3 +883,14 @@
(mtest
(ref 1..6 0.0) (1.0 2.0 3.0 4.0 5.0))
+
+(mtest
+ (interpose 1 '()) ()
+ (interpose 1 '(a)) (a)
+ (interpose 1 '(a b)) (a 1 b)
+ (interpose 1 '(a b c)) (a 1 b 1 c))
+
+(mtest
+ (interpose 1 "") ""
+ (interpose 1 "a") "a"
+ (interpose 1 "ab") (#\a 1 #\b))