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impl.cljc
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impl.cljc
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(ns dgknght.app-lib.test-assertions.impl
(:require [clojure.data :refer [diff]]
[clojure.string :as string]
#?(:clj [clojure.data.zip :as zip])
#?(:clj [clojure.data.zip.xml :refer [xml1->]])
#?(:clj [clojure.zip :refer [xml-zip]])
#?(:clj [clojure.pprint :refer [pprint]])
#?(:clj [clj-time.format :as tf]
:cljs [cljs-time.format :as tf])
#?(:clj [clj-time.coerce :refer [to-date-time]]
:cljs [cljs-time.coerce :refer [to-date-time]])
[lambdaisland.uri :refer [uri
query-string->map]]
#?(:cljs [goog.string])
#?(:clj [dgknght.app-lib.test :refer [parse-html-body]])
[dgknght.app-lib.models :as models]
[dgknght.app-lib.core :refer [update-in-if
prune-to
safe-nth]])
#?(:clj (:import java.io.StringWriter)))
#?(:cljs (def fmt goog.string/format)
:clj (def fmt format))
(defn report-msg
[& msgs]
(->> msgs
(filter identity)
(string/join ": ")))
(defn comparable?
[msg form]
(let [expected (safe-nth form 1)
actual (safe-nth form 2)
ks (->> form
(drop 3)
(into []))]
`(let [expected# (if (seq ~ks)
(select-keys ~expected ~ks)
~expected)
actual# (prune-to ~actual expected#)
result# (if (= expected# actual#)
:pass
:fail)
diffs# (when (= :fail result#)
(clojure.data/diff expected# actual#))]
{:expected expected#
:actual actual#
:message ~msg
:type result#
:diffs [[actual# (take 2 diffs#)]]})))
(defn seq-of-maps-like?
[msg form]
(let [expected (safe-nth form 1)
actual (safe-nth form 2)]
`(let [actual# (map-indexed #(prune-to %2 (get-in ~expected [%1]))
~actual)
result# (if (= ~expected actual#)
:pass
:fail)
diffs# (when (= :fail result#)
(diff ~expected actual#))]
{:expected ~expected
:actual actual#
:message ~msg
:type result#
:diffs [[actual# (take 2 diffs#)]]})))
(defn seq-with-map-like?
[msg form]
(let [expected (safe-nth form 1)
coll (safe-nth form 2)]
`(let [coll# (map #(prune-to % ~expected) ~coll)
found# (some #(= ~expected %)
coll#)]
(merge {:expected ~expected
:actual (or found# coll#)}
(if found#
{:type :pass
:message ~msg}
{:type :fail
:message (report-msg ~msg
(fmt "Expected to find %s in collection %s"
~expected
coll#))})))))
(defn seq-with-no-map-like?
[msg form]
(let [expected (safe-nth form 1)
coll (safe-nth form 2)]
`(let [found# (->> ~coll
(filter #(= ~expected (prune-to % ~expected)))
first)]
(merge {:expected ~expected
:actual found#}
(if found#
{:type :fail
:message (report-msg ~msg
"Expected not to find a matching map, but did find one")}
{:type :pass
:message ~msg})))))
(defn seq-containing-value?
[msg form]
(let [coll (safe-nth form 2)
expected (safe-nth form 1)]
`(let [actual# (set ~coll)]
{:type (if (actual# ~expected) :pass :fail)
:message (report-msg ~msg
(fmt "Expected to find value %s within, but didn't find it"
~expected
actual#))
:expected ~expected
:actual actual#})))
(defn seq-excluding-value?
[msg form]
(let [coll (safe-nth form 2)
expected (safe-nth form 1)]
`(let [actual# (set ~coll)]
{:type (if (actual# ~expected) :fail :pass)
:message (report-msg ~msg
(fmt "Expected not to find value %s within, but found it"
~expected
actual#))
:expected ~expected
:actual actual#})))
(defn seq-containing-model?
[msg form]
(let [coll (safe-nth form 2)
expected (safe-nth form 1)]
`(let [id# (models/->id ~expected)
actual# (->> ~coll
(map models/->id)
set)]
{:type (if (actual# id#) :pass :fail)
:message (report-msg ~msg
(fmt "Expected to find model with :id %s, but didn't find it"
id#))
:expected id#
:actual actual#})))
(defn seq-excluding-model?
[msg form]
(let [coll (safe-nth form 2)
expected (safe-nth form 1)]
`(let [id# (models/->id ~expected)
actual# (->> ~coll
(map models/->id)
set)]
{:type (if (actual# id#) :fail :pass)
:message (report-msg ~msg
(fmt "Expected not to find model with :id %s, but found it"
id#))
:expected id#
:actual actual#})))
; if the form has 3 elements, the 2nd is the unvalidated model
; and the 3rd is the spec.
; if the form has 2 elements, the 2nd is the already-validated model
(defn valid?
[msg form]
(let [model (safe-nth form 1)
spec (safe-nth form 2)]
`(let [validated# (if ~spec
(dgknght.app-lib.validation/validate ~model ~spec)
~model)
messages# (dgknght.app-lib.validation/error-messages validated#)]
(merge {:expected {} :actual messages#}
(if (seq messages#)
{:type :fail :message (report-msg ~msg "Found unexpected errors")}
{:type :pass :message ~msg})))))
(defn invalid?
[msg form]
(let [model (safe-nth form 1)
path (safe-nth form 2)
expected-msg (safe-nth form 3)
spec (safe-nth form 4)]
`(let [validated# (if ~spec
(dgknght.app-lib.validation/validate ~model ~spec)
~model)
messages# (set (dgknght.app-lib.validation/error-messages validated# ~path))
pass?# (if ~expected-msg
(messages# ~expected-msg)
(seq messages#))]
(merge {:expected ~expected-msg :actual messages#}
(if pass?#
{:type :pass :message ~msg}
{:type :fail :message (report-msg ~msg "Didn't find the expected error message")})))))
(defn http-redirect-to?
[msg form]
(let [req (safe-nth form 1)
target (safe-nth form 2)]
`(let [res# ~req]
(if (= 302 (:status res#))
(if (= ~target
(get-in res# [:headers "Location"]))
{:type :pass
:message ~msg
:expected ~target
:actual (get-in res# [:headers "Location"])}
{:type :fail
:message (fmt "Expected response to redirect to %s, but it didn't" ~target)
:expected ~target
:actual (get-in res# [:headers "Location"])})
{:type :fail
:message "Expected response to be a redirect, but it wasn't"
:expected 302
:actual (:status res#)}))))
(defn assert-http-status
[expected-status msg form]
(let [response (safe-nth form 1)]
`(let [status# (get-in ~response [:status])]
{:type (if (= ~expected-status status#)
:pass
:fail)
:message (report-msg ~msg
(fmt "Expected HTTP status code %s, but found %s"
~expected-status
status#))
:expected ~expected-status
:actual status#})))
(defn http-success?
[msg form]
(let [response (safe-nth form 1)]
`{:type (if (< 199 (:status ~response) 300)
:pass
:fail)
:message (fmt "Expected an HTTP status code in the 200s, but found %s: %s"
(:status ~response)
~msg)
:expected "20x"
:actual (:status ~response)}))
(defn comparable-uri
[input]
(-> {}
(into (uri input))
(update-in-if [:query] query-string->map)))
(defn uri=
[& args]
(->> args
(map comparable-uri)
(apply =)))
(defn uri-diff
[& args]
(->> args
(take 2)
(map comparable-uri)
(apply diff)))
(defn uri-diff-str
[uri-1 uri-2]
(let [[missing extra] (uri-diff uri-1 uri-2)]
#?(:clj
(when-let [out (StringWriter.)] ; when-let stops the linter from complaining about redundant let
(.write out "missing:\n")
(pprint missing out)
(.write out "extra:\n")
(pprint extra out)
(.toString out))
:cljs
(str "missing:\n"
(prn-str missing)
"extra:\n"
(prn-str extra)))))
(defn url-like?
[msg form]
(let [expected (uri (safe-nth form 1))
actual (safe-nth form 2)]
`(let [actual# (uri ~actual)]
{:expected (str ~expected)
:actual (str actual#)
:message (fmt "%s:\n%s"
~msg
(uri-diff-str ~expected actual#))
:type (if (uri= ~expected actual#)
:pass
:fail)})))
(defn not-url-like?
[msg form]
(let [expected (uri (safe-nth form 1))
actual (safe-nth form 2)]
`(let [actual# (uri ~actual)]
{:expected (str ~expected)
:actual (str actual#)
:message ~msg
:type (if (uri= ~expected actual#)
:fail
:pass)})))
(defn mime-msg-containing?
[msg form]
(let [content-type (safe-nth form 1)
pattern (safe-nth form 2)
mime-msg (safe-nth form 3)]
`(let [content# (->> (:body ~mime-msg)
(filter #(= ~content-type (:type %)))
(map :content)
first)]
{:type (if (and content#
(re-find ~pattern content#))
:pass
:fail)
:message (if content#
(report-msg ~msg (fmt "Expected to find \"%s\" in the %s content, but did not find it."
~pattern
~content-type))
(report-msg ~msg (fmt "Expected to find content type %s in the message, but did not find it."
~content-type)))
:expected ~pattern
:actual content#})))
(defn http-response-with-cookie?
[msg form]
(let [cookie-name (safe-nth form 1)
expected (safe-nth form 2)
response (safe-nth form 3)]
`(let [cookie# (->> (get-in ~response [:headers "Set-Cookie"])
(filter #(string/starts-with? % ~cookie-name))
first)
actual# (when cookie# (re-find #"(?<==)[^;]+" cookie#))]
{:type (if (= ~expected actual#)
:pass
:fail)
:message (if cookie#
(report-msg ~msg (fmt "Expected cookie \"%s\" to have value \"%s\", but found \"%s\""
~cookie-name
~expected
actual#))
(report-msg ~msg (fmt "Expected to find cookie \"%s\" in the response, but did not find it."
~cookie-name)))
:expected ~expected
:actual actual#})))
(defn http-response-without-cookie?
[msg form]
(let [response (safe-nth form 1)
cookie-name (safe-nth form 2)]
`(let [cookie# (->> (get-in ~response [:headers "Set-Cookie"])
(filter #(string/starts-with? % ~cookie-name))
first)]
{:type (if cookie#
:fail
:pass)
:message (report-msg ~msg (fmt "Expected not to find a cookie \"%s\", but found one."
~cookie-name))
:expected "no cookie"
:actual cookie#})))
#?(:clj
(defn html-response-with-content?
[msg form]
(let [response (safe-nth form 1)
predicates (drop 2 form)]
`(let [f# (fn [x#]
(apply xml1-> x# ~predicates))
match# (some f#
(zip/descendants
(-> ~response
parse-html-body
:html-body
xml-zip)))]
{:type (if match# :pass :fail)
:message (report-msg ~msg "Did not find the expected html content.")
:expected ~predicates
:actual "not found"}))))
(defn format-comparable-date
[d]
(tf/unparse (tf/formatters :date) (to-date-time d)))
#?(:clj
(defn same-date?
[msg form]
(let [expected (safe-nth form 1)
actual (safe-nth form 2)]
`(let [expected# (format-comparable-date ~expected)
actual# (format-comparable-date ~actual)]
{:type (if (= expected# actual#) :pass :fail)
:message (report-msg ~msg (fmt "Expected \"%s\", but found \"%s\"" expected# actual#))
:expected expected#
:actual actual#}))))