dream: core types — request/response/route records + 41 tests

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

lib/dream/tests/types.sx

@@ -0,0 +1,148 @@
+;; lib/dream/tests/types.sx — request/response/route records.
+
+(define dream-ty-pass 0)
+(define dream-ty-fail 0)
+(define dream-ty-fails (list))
+
+(define
+  dream-ty-test
+  (fn
+    (name actual expected)
+    (if
+      (= actual expected)
+      (set! dream-ty-pass (+ dream-ty-pass 1))
+      (begin
+        (set! dream-ty-fail (+ dream-ty-fail 1))
+        (append! dream-ty-fails {:name name :actual actual :expected expected})))))
+
+;; ── request construction + accessors ───────────────────────────────
+(define
+  dream-ty-req
+  (dream-request "get" "/users/42?tab=info&x=1" {:X-Token "abc" :Content-Type "text/html"} "hello"))
+
+(dream-ty-test "method uppercased" (dream-method dream-ty-req) "GET")
+(dream-ty-test "path strips query" (dream-path dream-ty-req) "/users/42")
+(dream-ty-test
+  "target keeps query"
+  (dream-target dream-ty-req)
+  "/users/42?tab=info&x=1")
+(dream-ty-test "body" (dream-body dream-ty-req) "hello")
+(dream-ty-test
+  "header case-insensitive"
+  (dream-header dream-ty-req "content-type")
+  "text/html")
+(dream-ty-test
+  "header mixed case"
+  (dream-header dream-ty-req "X-Token")
+  "abc")
+(dream-ty-test
+  "missing header is nil"
+  (dream-header dream-ty-req "absent")
+  nil)
+(dream-ty-test
+  "query param tab"
+  (dream-query-param dream-ty-req "tab")
+  "info")
+(dream-ty-test "query param x" (dream-query-param dream-ty-req "x") "1")
+(dream-ty-test "params empty by default" (dream-param dream-ty-req "id") nil)
+(dream-ty-test "is a request" (dream-request? dream-ty-req) true)
+(dream-ty-test "string is not a request" (dream-request? "x") false)
+
+;; ── query edge cases ───────────────────────────────────────────────
+(dream-ty-test
+  "no query is empty"
+  (dream-query-param (dream-request "GET" "/plain" {} "") "k")
+  nil)
+(dream-ty-test
+  "valueless query param"
+  (dream-query-param (dream-request "GET" "/p?flag" {} "") "flag")
+  "")
+
+;; ── path params ────────────────────────────────────────────────────
+(define dream-ty-req2 (dream-with-param dream-ty-req "id" "42"))
+(dream-ty-test "with-param sets" (dream-param dream-ty-req2 "id") "42")
+(dream-ty-test "with-param immutable" (dream-param dream-ty-req "id") nil)
+(define dream-ty-req3 (dream-with-params dream-ty-req {:a "1" :b "2"}))
+(dream-ty-test "with-params a" (dream-param dream-ty-req3 "a") "1")
+(dream-ty-test "with-params b" (dream-param dream-ty-req3 "b") "2")
+
+;; ── response construction ──────────────────────────────────────────
+(dream-ty-test "html status" (dream-status (dream-html "<p>")) 200)
+(dream-ty-test "html body" (dream-resp-body (dream-html "<p>")) "<p>")
+(dream-ty-test
+  "html content-type"
+  (dream-resp-header (dream-html "<p>") "content-type")
+  "text/html; charset=utf-8")
+(dream-ty-test
+  "text content-type"
+  (dream-resp-header (dream-text "hi") "content-type")
+  "text/plain; charset=utf-8")
+(dream-ty-test
+  "json content-type"
+  (dream-resp-header (dream-json "{}") "content-type")
+  "application/json")
+(dream-ty-test
+  "html-status code"
+  (dream-status (dream-html-status 201 "ok"))
+  201)
+(dream-ty-test
+  "not-found status"
+  (dream-status (dream-not-found))
+  404)
+(dream-ty-test
+  "empty status"
+  (dream-status (dream-empty 204))
+  204)
+(dream-ty-test "empty body" (dream-resp-body (dream-empty 204)) "")
+(dream-ty-test
+  "redirect status"
+  (dream-status (dream-redirect "/home"))
+  303)
+(dream-ty-test
+  "redirect location"
+  (dream-resp-header (dream-redirect "/home") "location")
+  "/home")
+(dream-ty-test
+  "redirect-status code"
+  (dream-status (dream-redirect-status 301 "/x"))
+  301)
+(dream-ty-test "is a response" (dream-response? (dream-html "x")) true)
+
+;; ── response mutation ──────────────────────────────────────────────
+(define dream-ty-resp (dream-add-header (dream-html "x") "X-Custom" "yes"))
+(dream-ty-test
+  "add-header"
+  (dream-resp-header dream-ty-resp "x-custom")
+  "yes")
+(dream-ty-test "add-header keeps body" (dream-resp-body dream-ty-resp) "x")
+(dream-ty-test
+  "set-status"
+  (dream-status (dream-set-status (dream-html "x") 500))
+  500)
+
+;; ── coercion ───────────────────────────────────────────────────────
+(dream-ty-test
+  "coerce string"
+  (dream-status (dream-coerce-response "hi"))
+  200)
+(dream-ty-test
+  "coerce string body"
+  (dream-resp-body (dream-coerce-response "hi"))
+  "hi")
+(dream-ty-test
+  "coerce response passthrough"
+  (dream-status (dream-coerce-response (dream-empty 204)))
+  204)
+
+;; ── route ──────────────────────────────────────────────────────────
+(define dream-ty-h (fn (req) (dream-text "ok")))
+(define dream-ty-route (dream-route "post" "/submit" dream-ty-h))
+(dream-ty-test "route method" (dream-route-method dream-ty-route) "POST")
+(dream-ty-test "route path" (dream-route-path dream-ty-route) "/submit")
+(dream-ty-test "route is route" (dream-route? dream-ty-route) true)
+(dream-ty-test
+  "route handler invokes"
+  (dream-resp-body ((dream-route-handler dream-ty-route) dream-ty-req))
+  "ok")
+
+(define dream-ty-tests-run! (fn () {:total (+ dream-ty-pass dream-ty-fail) :passed dream-ty-pass :failed dream-ty-fail :fails dream-ty-fails}))