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rose-ash/lib/persist/tests/kv.sx
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persist: Phase 1 — log + kv facets on injectable in-memory backend + 28 tests
event/backend/log/kv/api over one injected backend protocol (mem default).
log: append/read/read-from, sequential per-stream seq, stream isolation.
kv: get/put/delete/has?/keys/get-or/update. conformance.sh + 3 suites, 28/28.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-06-06 18:32:51 +00:00

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; Phase 1 — kv facet: get/put/delete/has?/keys, get-or, update.
(persist-test "absent key reads nil" (persist/kv-get (persist/open) "x") nil)
(persist-test
"has? false when absent"
(persist/kv-has? (persist/open) "x")
false)
(persist-test
"put then get"
(let
((b (persist/open)))
(begin (persist/kv-put b "x" 7) (persist/kv-get b "x")))
7)
(persist-test
"put returns value"
(let ((b (persist/open))) (persist/kv-put b "x" 9))
9)
(persist-test
"has? true after put"
(let
((b (persist/open)))
(begin (persist/kv-put b "x" 1) (persist/kv-has? b "x")))
true)
(persist-test
"put overwrites"
(let
((b (persist/open)))
(begin
(persist/kv-put b "x" 1)
(persist/kv-put b "x" 2)
(persist/kv-get b "x")))
2)
(persist-test
"delete removes key"
(let
((b (persist/open)))
(begin
(persist/kv-put b "x" 1)
(persist/kv-delete b "x")
(persist/kv-has? b "x")))
false)
(persist-test
"delete then get is nil"
(let
((b (persist/open)))
(begin
(persist/kv-put b "x" 1)
(persist/kv-delete b "x")
(persist/kv-get b "x")))
nil)
(persist-test
"keys lists stored keys"
(let
((b (persist/open)))
(begin
(persist/kv-put b "a" 1)
(persist/kv-put b "b" 2)
(len (persist/kv-keys b))))
2)
(persist-test
"get-or returns default when absent"
(persist/kv-get-or (persist/open) "x" 99)
99)
(persist-test
"get-or returns value when present"
(let
((b (persist/open)))
(begin
(persist/kv-put b "x" 5)
(persist/kv-get-or b "x" 99)))
5)
(persist-test
"kv-update applies fn over default"
(let
((b (persist/open)))
(begin
(persist/kv-update b "n" 0 (fn (v) (+ v 1)))
(persist/kv-update b "n" 0 (fn (v) (+ v 1)))
(persist/kv-get b "n")))
2)
(persist-test
"kv facet does not touch log"
(let
((b (persist/open)))
(begin (persist/kv-put b "x" 1) (persist/count b "x")))
0)