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rose-ash/lib/feed/tests/basic.sx
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feed: Phase 1 stream model — normalize, APL-backed filter/sort/take/reverse, post/all api + 30 tests
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-06-06 16:31:36 +00:00

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; Phase 1 — normalize, stream ops, api. Uses the feed-test harness
; (feed-test name got expected) provided by conformance.sh.
; ---------- normalize ----------
(feed-test
"normalize default actor"
(feed/actor (feed/normalize {}))
"")
(feed-test
"normalize default verb"
(feed/verb (feed/normalize {}))
"post")
(feed-test
"normalize default at"
(feed/at (feed/normalize {}))
0)
(feed-test
"normalize default object"
(feed/object (feed/normalize {}))
nil)
(feed-test
"normalize default tags"
(feed/tags (feed/normalize {}))
(list))
(feed-test
"normalize keeps actor"
(feed/actor (feed/normalize {:actor "alice"}))
"alice")
(feed-test
"normalize keeps verb"
(feed/verb (feed/normalize {:verb "like"}))
"like")
(feed-test
"normalize scalar tag -> list"
(feed/tags (feed/normalize {:tags "x"}))
(list "x"))
(feed-test
"normalize list tags kept"
(feed/tags (feed/normalize {:tags (list "a" "b")}))
(list "a" "b"))
(feed-test
"activity constructor at"
(feed/at (feed/activity "a" "post" "o" 5 (list)))
5)
(feed-test
"activity? on activity"
(feed/activity? (feed/normalize {:actor "a"}))
true)
(feed-test "activity? on number" (feed/activity? 5) false)
(feed-test "activity? on bare dict" (feed/activity? {:foo 1}) false)
; ---------- stream ----------
(define
S
(feed/stream
(list
(feed/activity "alice" "post" "p1" 30 (list))
(feed/activity "bob" "like" "p1" 10 (list))
(feed/activity "alice" "post" "p2" 20 (list)))))
(feed-test "stream count" (feed/count S) 3)
(feed-test "stream items len" (len (feed/items S)) 3)
(feed-test
"sort-by-at actors asc"
(map feed/actor (feed/items (feed/sort-by-at S)))
(list "bob" "alice" "alice"))
(feed-test
"recent newest first"
(map feed/at (feed/items (feed/recent S)))
(list 30 20 10))
(feed-test
"take 2 of recent"
(feed/count (feed/take (feed/recent S) 2))
2)
(feed-test
"take clamps past end"
(feed/count (feed/take S 10))
3)
(feed-test
"by-actor alice count"
(feed/count (feed/by-actor S "alice"))
2)
(feed-test
"by-verb like actor"
(map feed/actor (feed/items (feed/by-verb S "like")))
(list "bob"))
(feed-test
"by-object p1 count"
(feed/count (feed/by-object S "p1"))
2)
(feed-test
"since 20 count"
(feed/count (feed/since S 20))
2)
(feed-test
"reverse ats"
(map feed/at (feed/items (feed/reverse S)))
(list 20 10 30))
(feed-test "empty? on empty" (feed/empty? feed/empty) true)
(feed-test
"empty? on filtered-out"
(feed/empty? (feed/by-actor S "zzz"))
true)
; ---------- api ----------
(feed/reset!)
(feed/post {:actor "x" :at 1 :verb "post"})
(feed/post {:actor "y" :at 2 :verb "like"})
(feed-test "api size after posts" (feed/size) 2)
(feed-test "api all count" (feed/count (feed/all)) 2)
(feed-test
"post returns normalized verb"
(feed/verb (feed/post {:actor "z"}))
"post")
(feed-test "api size after third post" (feed/size) 3)