75 lines
3.1 KiB
Plaintext
75 lines
3.1 KiB
Plaintext
;; lib/host/tests/otel.sx — P1: span model + API. A span dict
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;; {:trace :span :parent :name :t0 :t1 :attrs :events}; otel/with-span records
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;; t0/t1 and pushes/pops a dynamic parent stack so nesting builds the tree; a
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;; bounded ring buffer (record!/recent, cap, drop-oldest); current-span/current-trace.
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(define host-ot-pass 0)
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(define host-ot-fail 0)
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(define host-ot-fails (list))
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(define
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host-ot-test
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(fn
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(name actual expected)
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(if
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(= actual expected)
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(set! host-ot-pass (+ host-ot-pass 1))
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(begin
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(set! host-ot-fail (+ host-ot-fail 1))
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(append! host-ot-fails {:name name :actual actual :expected expected})))))
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;; ── nested with-span builds the parent tree ─────────────────────────
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(otel/reset!)
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(otel/with-span "root" {}
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(fn () (otel/with-span "child" {} (fn () 42))))
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(define host-ot-sp (otel/recent))
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(define host-ot-child (first host-ot-sp)) ;; inner span completes+records first
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(define host-ot-root (nth host-ot-sp 1))
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(host-ot-test "two spans recorded" (len host-ot-sp) 2)
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(host-ot-test "child name" (get host-ot-child :name) "child")
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(host-ot-test "root name" (get host-ot-root :name) "root")
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(host-ot-test "child parent is root span" (get host-ot-child :parent) (get host-ot-root :span))
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(host-ot-test "root has no parent" (get host-ot-root :parent) nil)
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(host-ot-test "same trace" (= (get host-ot-child :trace) (get host-ot-root :trace)) true)
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(host-ot-test "root t1 >= t0" (>= (get host-ot-root :t1) (get host-ot-root :t0)) true)
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(host-ot-test "root has attrs" (get host-ot-root :attrs) {})
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(host-ot-test "root has events list" (get host-ot-root :events) (list))
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;; ── attrs are carried through ───────────────────────────────────────
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(otel/reset!)
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(otel/with-span "req" {:http.method "GET" :http.route "/feed"} (fn () nil))
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(host-ot-test "attrs carried"
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(get (get (first (otel/recent)) :attrs) :http.method) "GET")
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;; ── current-span / current-trace track the dynamic stack ────────────
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(otel/reset!)
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(host-ot-test "no current span outside" (otel/current-span) nil)
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(host-ot-test "no current trace outside" (otel/current-trace) nil)
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(otel/with-span "x" {}
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(fn ()
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(begin
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(host-ot-test "current span set inside" (not (= (otel/current-span) nil)) true)
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(host-ot-test "current trace set inside" (not (= (otel/current-trace) nil)) true)
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nil)))
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(host-ot-test "no current span after" (otel/current-span) nil)
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;; ── ring buffer caps at N, drops oldest ─────────────────────────────
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(otel/reset!)
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(otel/set-cap! 3)
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(for-each (fn (i) (otel/record! {:span i :name "s"})) (list 1 2 3 4 5))
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(host-ot-test "ring capped at 3" (len (otel/recent)) 3)
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(host-ot-test "oldest dropped" (get (first (otel/recent)) :span) 3)
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(host-ot-test "newest kept" (get (last (otel/recent)) :span) 5)
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(otel/set-cap! 1000)
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(define
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host-ot-tests-run!
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(fn
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()
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{:total (+ host-ot-pass host-ot-fail)
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:passed host-ot-pass
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:failed host-ot-fail
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:fails host-ot-fails}))
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