reagent/test/reagenttest/testreagent.cljs

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(ns reagenttest.testreagent
(:require [cljs.test :as t :refer-macros [is deftest testing]]
[react :as react]
[create-react-class :as create-react-class]
[reagent.ratom :as rv :refer-macros [reaction]]
[reagent.debug :as debug :refer-macros [dbg println log dev?]]
[reagent.interop :refer-macros [$ $!]]
[reagent.core :as r]
[reagent.dom.server :as server]
[reagent.impl.util :as util]
[reagenttest.utils :as u :refer [with-mounted-component found-in]]
[goog.string :as gstr]
[goog.object :as gobj]
[prop-types :as prop-types]))
(def tests-done (atom {}))
(t/use-fixtures :once
{:before (fn []
(set! rv/debug true))
:after (fn []
(set! rv/debug false))})
(defn running [] (rv/running))
(def isClient r/is-client)
(def rflush r/flush)
(defn rstr [react-elem]
(server/render-to-static-markup react-elem))
(deftest really-simple-test
(when (and isClient
(not (:really-simple-test @tests-done)))
(swap! tests-done assoc :really-simple-test true)
(let [ran (r/atom 0)
really-simple (fn []
(swap! ran inc)
[:div "div in really-simple"])]
(with-mounted-component [really-simple nil nil]
(fn [c div]
(swap! ran inc)
(is (found-in #"div in really-simple" div))
(r/flush)
(is (= 2 @ran))
(r/force-update-all)
(is (= 3 @ran))))
(is (= 3 @ran)))))
(deftest test-simple-callback
(when isClient
(let [ran (r/atom 0)
comp (r/create-class
{:component-did-mount #(swap! ran inc)
:render
(fn [this]
(let [props (r/props this)]
(is (map? props))
(is (= props ((r/argv this) 1)))
(is (= 1 (first (r/children this))))
(is (= 1 (count (r/children this))))
(swap! ran inc)
[:div (str "hi " (:foo props) ".")]))})]
(with-mounted-component [comp {:foo "you"} 1]
(fn [C div]
(swap! ran inc)
(is (found-in #"hi you" div))))
(is (= 3 @ran)))))
(deftest test-state-change
(when isClient
(let [ran (r/atom 0)
self (r/atom nil)
comp (r/create-class
{:get-initial-state (fn [] {:foo "initial"})
:reagent-render
(fn []
(let [this (r/current-component)]
(reset! self this)
(swap! ran inc)
[:div (str "hi " (:foo (r/state this)))]))})]
(with-mounted-component [comp]
(fn [C div]
(swap! ran inc)
(is (found-in #"hi initial" div))
(r/replace-state @self {:foo "there"})
(r/state @self)
(rflush)
(is (found-in #"hi there" div))
(r/set-state @self {:foo "you"})
(rflush)
(is (found-in #"hi you" div))))
(is (= 4 @ran)))))
(deftest test-ratom-change
(when isClient
(let [ran (r/atom 0)
runs (running)
val (r/atom 0)
secval (r/atom 0)
v1-ran (atom 0)
v1 (reaction (swap! v1-ran inc) @val)
comp (fn []
(swap! ran inc)
[:div (str "val " @v1 @val @secval)])]
(with-mounted-component [comp]
(fn [C div]
(r/flush)
(is (not= runs (running)))
(is (found-in #"val 0" div))
(is (= 1 @ran))
(reset! secval 1)
(reset! secval 0)
(reset! val 1)
(reset! val 2)
(reset! val 1)
(is (= 1 @ran))
(is (= 1 @v1-ran))
(r/flush)
(is (found-in #"val 1" div))
(is (= 2 @ran) "ran once more")
(is (= 2 @v1-ran))
;; should not be rendered
(reset! val 1)
(is (= 2 @v1-ran))
(r/flush)
(is (= 2 @v1-ran))
(is (found-in #"val 1" div))
(is (= 2 @ran) "did not run")))
(is (= runs (running)))
(is (= 2 @ran)))))
(deftest batched-update-test []
(when isClient
(let [ran (r/atom 0)
v1 (r/atom 0)
v2 (r/atom 0)
c2 (fn [{val :val}]
(swap! ran inc)
(is (= @v1 val))
[:div @v2])
c1 (fn []
(swap! ran inc)
[:div @v1
[c2 {:val @v1}]])]
(with-mounted-component [c1]
(fn [c div]
(rflush)
(is (= @ran 2))
(swap! v2 inc)
(is (= @ran 2))
(rflush)
(is (= @ran 3))
(swap! v1 inc)
(rflush)
(is (= @ran 5))
(swap! v2 inc)
(swap! v1 inc)
(rflush)
(is (= @ran 7))
(swap! v1 inc)
(swap! v1 inc)
(swap! v2 inc)
(rflush)
(is (= @ran 9)))))))
(deftest init-state-test
(when isClient
(let [ran (r/atom 0)
really-simple (fn []
(let [this (r/current-component)]
(swap! ran inc)
(r/set-state this {:foo "foobar"})
(fn []
[:div (str "this is "
(:foo (r/state this)))])))]
(with-mounted-component [really-simple nil nil]
(fn [c div]
(swap! ran inc)
(is (found-in #"this is foobar" div))))
(is (= 2 @ran)))))
(deftest shoud-update-test
(when (and isClient
(not (:should-update-test @tests-done)))
(swap! tests-done assoc :should-update-test true)
(let [parent-ran (r/atom 0)
child-ran (r/atom 0)
child-props (r/atom nil)
f (fn [])
f1 (fn [])
child (fn [p]
(swap! child-ran inc)
[:div (:val p)])
parent(fn []
(swap! parent-ran inc)
[:div "child-foo" [child @child-props]])]
(with-mounted-component [parent nil nil]
(fn [c div]
(rflush)
(is (= @child-ran 1))
(is (found-in #"child-foo" div))
(do (reset! child-props {:style {:display :none}})
(rflush))
(is (= @child-ran 2))
(do (reset! child-props {:style {:display :none}})
(rflush))
(is (= @child-ran 2) "keyw is equal")
(do (reset! child-props {:class :foo}) (rflush))
(is (= @child-ran 3))
(do (reset! child-props {:class :foo}) (rflush))
(is (= @child-ran 3))
(do (reset! child-props {:class 'foo}) (rflush))
(is (= @child-ran 4) "symbols are different from keyw")
(do (reset! child-props {:class 'foo}) (rflush))
(is (= @child-ran 4) "symbols are equal")
(do (reset! child-props {:style {:color 'red}}) (rflush))
(is (= @child-ran 5))
(do (reset! child-props {:on-change (r/partial f)})
(rflush))
(is (= @child-ran 6))
(do (reset! child-props {:on-change (r/partial f)})
(rflush))
(is (= @child-ran 6))
(do (reset! child-props {:on-change (r/partial f1)})
(rflush))
(is (= @child-ran 7))
(r/force-update-all)
(is (= @child-ran 8)))))))
(deftest dirty-test
(when isClient
(let [ran (r/atom 0)
state (r/atom 0)
really-simple (fn []
(swap! ran inc)
(if (= @state 1)
(reset! state 3))
[:div (str "state=" @state)])]
(with-mounted-component [really-simple nil nil]
(fn [c div]
(is (= 1 @ran))
(is (found-in #"state=0" div))
(reset! state 1)
(rflush)
(is (= 2 @ran))
(is (found-in #"state=3" div))))
(is (= 2 @ran)))))
(defn as-string [comp]
(server/render-to-static-markup comp))
(deftest to-string-test []
(let [comp (fn [props]
[:div (str "i am " (:foo props))])]
(is (re-find #"i am foobar"
(as-string [comp {:foo "foobar"}])))))
(deftest data-aria-test []
(is (re-find #"data-foo"
(as-string [:div {:data-foo "x"}])))
(is (re-find #"aria-labelledby"
(as-string [:div {:aria-labelledby "x"}])))
;; Skip test: produces warning in new React
;; (is (not (re-find #"enctype"
;; (as-string [:div {"enc-type" "x"}])))
;; "Strings are passed through to React.")
;; FIXME: For some reason UMD module returns everything in
;; lowercase, and CommonJS with upper T
(is (re-find #"enc[tT]ype"
(as-string [:div {"encType" "x"}]))
"Strings are passed through to React, and have to be camelcase.")
(is (re-find #"enc[tT]ype"
(as-string [:div {:enc-type "x"}]))
"Strings are passed through to React, and have to be camelcase."))
(deftest dynamic-id-class []
(is (re-find #"id=.foo"
(as-string [:div#foo {:class "bar"}])))
(is (re-find #"class=.foo bar"
(as-string [:div.foo {:class "bar"}])))
(is (re-find #"class=.foo bar"
(as-string [:div.foo.bar])))
(is (re-find #"id=.foo"
(as-string [:div#foo.foo.bar])))
(is (re-find #"class=.xxx bar"
(as-string [:div#foo.xxx.bar])))
(is (re-find #"id=.foo"
(as-string [:div.bar {:id "foo"}])))
(is (re-find #"id=.foo"
(as-string [:div.bar.xxx {:id "foo"}])))
(is (re-find #"id=.foo"
(as-string [:div#bar {:id "foo"}]))
"Dynamic id overwrites static"))
(deftest ifn-component []
(defmulti my-div :type)
(defmethod my-div :fooish [child] [:div.foo (:content child)])
(defmethod my-div :barish [child] [:div.bar (:content child)])
(let [comp {:foo [:div "foodiv"]
:bar [:div "bardiv"]}]
(is (re-find #"foodiv"
(as-string [:div [comp :foo]])))
(is (re-find #"bardiv"
(as-string [:div [comp :bar]])))
(is (re-find #"class=.foo"
(as-string [my-div {:type :fooish :content "inner"}])))))
(deftest symbol-string-tag []
(is (re-find #"foobar"
(as-string ['div "foobar"])))
(is (re-find #"foobar"
(as-string ["div" "foobar"])))
(is (re-find #"id=.foo"
(as-string ['div#foo "x"])))
(is (re-find #"id=.foo"
(as-string ["div#foo" "x"])))
(is (re-find #"class=.foo bar"
(as-string ['div.foo {:class "bar"}])))
(is (re-find #"class=.foo bar"
(as-string ["div.foo.bar"])))
(is (re-find #"id=.foo"
(as-string ['div#foo.foo.bar]))))
(deftest partial-test []
(let [p1 (r/partial vector 1 2)]
(is (= (p1 3) [1 2 3]))
(is (= p1 (r/partial vector 1 2)))
(is (ifn? p1))
(is (= (r/partial vector 1 2) p1))
(is (not= p1 (r/partial vector 1 3)))
(is (= (hash p1) (hash (r/partial vector 1 2))))))
(deftest test-null-component
(let [null-comp (fn [do-show]
(when do-show
[:div "div in test-null-component"]))]
(is (not (re-find #"test-null-component"
(as-string [null-comp false]))))
(is (re-find #"test-null-component"
(as-string [null-comp true])))))
(deftest test-static-markup
(is (= "<div>foo</div>"
(rstr [:div "foo"])))
(is (= "<div class=\"bar\"><p>foo</p></div>"
(rstr [:div.bar [:p "foo"]])))
(is (= "<div class=\"bar\"><p>foobar</p></div>"
(rstr [:div.bar {:dangerously-set-inner-HTML
{:__html "<p>foobar</p>"}} ]))))
(deftest test-return-class
(when isClient
(let [ran (r/atom 0)
top-ran (r/atom 0)
comp (fn []
(swap! top-ran inc)
(r/create-class
{:component-did-mount #(swap! ran inc)
:render
(fn [this]
(let [props (r/props this)]
(is (map? props))
(is (= props ((r/argv this) 1)))
(is (= 1 (first (r/children this))))
(is (= 1 (count (r/children this))))
(swap! ran inc)
[:div (str "hi " (:foo props) ".")]))}))
prop (r/atom {:foo "you"})
parent (fn [] [comp @prop 1])]
(with-mounted-component [parent]
(fn [C div]
(swap! ran inc)
(is (found-in #"hi you" div))
(is (= 1 @top-ran))
(is (= 3 @ran))
(swap! prop assoc :foo "me")
(r/flush)
(is (found-in #"hi me" div))
(is (= 1 @top-ran))
(is (= 4 @ran)))))))
(deftest test-return-class-fn
(when isClient
(let [ran (r/atom 0)
top-ran (r/atom 0)
comp (fn []
(swap! top-ran inc)
(r/create-class
{:component-did-mount #(swap! ran inc)
:component-function
(fn [p a]
(is (= 1 a))
(swap! ran inc)
[:div (str "hi " (:foo p) ".")])}))
prop (r/atom {:foo "you"})
parent (fn [] [comp @prop 1])]
(with-mounted-component [parent]
(fn [C div]
(swap! ran inc)
(is (found-in #"hi you" div))
(is (= 1 @top-ran))
(is (= 3 @ran))
(swap! prop assoc :foo "me")
(r/flush)
(is (found-in #"hi me" div))
(is (= 1 @top-ran))
(is (= 4 @ran)))))))
(deftest test-create-element
(let [ae r/as-element
ce r/create-element]
(is (= (rstr (ae [:div]))
(rstr (ce "div"))))
(is (= (rstr (ae [:div]))
(rstr (ce "div" nil))))
(is (= (rstr (ae [:div "foo"]))
(rstr (ce "div" nil "foo"))))
(is (= (rstr (ae [:div "foo" "bar"]))
(rstr (ce "div" nil "foo" "bar"))))
(is (= (rstr (ae [:div "foo" "bar" "foobar"]))
(rstr (ce "div" nil "foo" "bar" "foobar"))))
(is (= (rstr (ae [:div.foo "bar"]))
(rstr (ce "div" #js{:className "foo"} "bar"))))
(is (= (rstr (ae [:div [:div "foo"]]))
(rstr (ce "div" nil (ce "div" nil "foo")))))
(is (= (rstr (ae [:div [:div "foo"]]))
(rstr (ce "div" nil (ae [:div "foo"])))))
(is (= (rstr (ae [:div [:div "foo"]]))
(rstr (ae [:div (ce "div" nil "foo")]))))))
(def ndiv (create-react-class
#js {:displayName "ndiv"
:render
(fn []
(this-as
this
(r/create-element
"div" #js{:className ($ this :props.className)}
($ this :props.children))))}))
(deftest test-adapt-class
(let [d1 (r/adapt-react-class ndiv)
d2 (r/adapt-react-class "div")]
(is (= (rstr [:div])
(rstr [d1])))
(is (= (rstr [:div "a"])
(rstr [d1 "a"])))
(is (= (rstr [:div "a" "b"])
(rstr [d1 "a" "b"])))
(is (= (rstr [:div.foo "a"])
(rstr [d1 {:class "foo"} "a"])))
(is (= (rstr [:div "a" "b" [:div "c"]])
(rstr [d1 "a" "b" [:div "c"]])))
(is (= (rstr [:div])
(rstr [d2])))
(is (= (rstr [:div "a"])
(rstr [d2 "a"])))
(is (= (rstr [:div "a" "b"])
(rstr [d2 "a" "b"])))
(is (= (rstr [:div.foo "a"])
(rstr [d2 {:class "foo"} "a"])))
(is (= (rstr [:div "a" "b" [:div "c"]])
(rstr [d2 "a" "b" [:div "c"]])))))
(deftest test-adapt-class-2
(let [d1 ndiv
d2 "div"]
(is (= (rstr [:div])
(rstr [:> d1])))
(is (= (rstr [:div "a"])
(rstr [:> d1 "a"])))
(is (= (rstr [:div "a" "b"])
(rstr [:> d1 "a" "b"])))
(is (= (rstr [:div.foo "a"])
(rstr [:> d1 {:class "foo"} "a"])))
(is (= (rstr [:div "a" "b" [:div "c"]])
(rstr [:> d1 "a" "b" [:div "c"]])))
(is (= (rstr [:div])
(rstr [:> d2])))
(is (= (rstr [:div "a"])
(rstr [:> d2 "a"])))
(is (= (rstr [:div "a" "b"])
(rstr [:> d2 "a" "b"])))
(is (= (rstr [:div.foo "a"])
(rstr [:> d2 {:class "foo"} "a"])))
(is (= (rstr [:div "a" "b" [:div "c"]])
(rstr [:> d2 "a" "b" [:div "c"]])))))
(deftest test-reactize-component
(let [ae r/as-element
ce r/create-element
a (atom nil)
c1r (fn reactize [p & args]
(reset! a args)
[:p "p:" (:a p) (:children p)])
c1 (r/reactify-component c1r)]
(is (= (rstr [:p "p:a"])
(rstr (ce c1 #js{:a "a"}))))
(is (= @a nil))
(is (= (rstr [:p "p:"])
(rstr (ce c1 #js{:a nil}))))
(is (= (rstr [:p "p:"])
(rstr (ce c1 nil))))
(is (= (rstr [:p "p:a" [:b "b"]])
(rstr (ce c1 #js{:a "a"}
(ae [:b "b"])))))
(is (= @a nil))
(is (= (rstr [:p "p:a" [:b "b"] [:i "i"]])
(rstr (ce c1 #js{:a "a"}
(ae [:b "b"])
(ae [:i "i"])))))
(is (= @a nil))))
(deftest test-keys
(let [a nil ;; (r/atom "a")
c (fn key-tester []
[:div
(for [i (range 3)]
^{:key i} [:p i (some-> a deref)])
(for [i (range 3)]
[:p {:key i} i (some-> a deref)])])]
(with-mounted-component [c]
(fn [c div]
;; Just make sure this doesn't print a debug message
))))
(deftest test-extended-syntax
(is (= (rstr [:p>b "foo"])
"<p><b>foo</b></p>"))
(is (= (rstr [:p.foo>b "x"])
(rstr [:p.foo [:b "x"]])))
(is (= (rstr [:div.foo>p.bar.foo>b.foobar "xy"])
(rstr [:div.foo [:p.bar.foo [:b.foobar "xy"]]])))
(is (= (rstr [:div.foo>p.bar.foo>b.foobar {} "xy"])
(rstr [:div.foo [:p.bar.foo [:b.foobar "xy"]]])))
(is (= (rstr [:div>p.bar.foo>a.foobar {:href "href"} "xy"])
(rstr [:div [:p.bar.foo [:a.foobar {:href "href"} "xy"]]]))))
(deftest extended-syntax-metadata
(when r/is-client
(let [comp (fn []
[:div
(for [k [1 2]]
^{:key k} [:div>div "a"])])]
(with-mounted-component [comp]
(fn [c div]
;; Just make sure this doesn't print a debug message
)))))
(deftest test-class-from-collection
(is (= (rstr [:p {:class ["a" "b" "c" "d"]}])
(rstr [:p {:class "a b c d"}])))
(is (= (rstr [:p {:class ["a" nil "b" false "c" nil]}])
(rstr [:p {:class "a b c"}])))
(is (= (rstr [:p {:class '("a" "b" "c")}])
(rstr [:p {:class "a b c"}])))
(is (= (rstr [:p {:class #{"a" "b" "c"}}])
(rstr [:p {:class "a b c"}]))))
(deftest class-different-types
(testing "named values are supported"
(is (= (rstr [:p {:class :a}])
(rstr [:p {:class "a"}])))
(is (= (rstr [:p.a {:class :b}])
(rstr [:p {:class "a b"}])))
(is (= (rstr [:p.a {:class 'b}])
(rstr [:p {:class "a b"}])))
(is (= (rstr [:p {:class [:a :b]}])
(rstr [:p {:class "a b"}])))
(is (= (rstr [:p {:class ['a :b]}])
(rstr [:p {:class "a b"}]))))
(testing "non-named values like numbers"
(is (= (rstr [:p {:class [1 :b]}])
(rstr [:p {:class "1 b"}]))))
(testing "falsey values are filtered from collections"
(is (= (rstr [:p {:class [:a :b false nil]}])
(rstr [:p {:class "a b"}])))) )
(deftest test-force-update
(let [v (atom {:v1 0
:v2 0})
comps (atom {})
c1 (fn []
(swap! comps assoc :c1 (r/current-component))
[:p "" (swap! v update-in [:v1] inc)])
c2 (fn []
(swap! comps assoc :c2 (r/current-component))
[:div "" (swap! v update-in [:v2] inc)
[c1]])
state (r/atom 0)
spy (r/atom 0)
t (fn [] @state)
t1 (fn [] @(r/track t))
c3 (fn []
(swap! comps assoc :c3 (r/current-component))
[:div "" (reset! spy @(r/track t1))])]
(with-mounted-component [c2]
(fn [c div]
(is (= @v {:v1 1 :v2 1}))
(r/force-update (:c2 @comps))
(is (= @v {:v1 1 :v2 2}))
(r/force-update (:c1 @comps))
(is (= @v {:v1 2 :v2 2}))
(r/force-update (:c2 @comps) true)
(is (= @v {:v1 3 :v2 3}))))
(with-mounted-component [c3]
(fn [c]
(is (= @spy 0))
(swap! state inc)
(is (= @spy 0))
(r/force-update (:c3 @comps))
(is (= @spy 1))))))
(deftest test-component-path
(let [a (atom nil)
tc (r/create-class {:display-name "atestcomponent"
:render (fn []
(let [c (r/current-component)]
(reset! a (r/component-path c))
[:div]))})]
(with-mounted-component [tc]
(fn [c]
(is (seq @a))
(is (re-find #"atestcomponent" @a) "component-path should work")))))
(deftest test-sorted-map-key
(let [c1 (fn [map]
[:div (map 1)])
c2 (fn []
[c1 (sorted-map 1 "foo" 2 "bar")])]
(is (= (rstr [c2]) "<div>foo</div>"))))
(deftest basic-with-let
(when isClient
(let [n1 (atom 0)
n2 (atom 0)
n3 (atom 0)
val (r/atom 0)
c (fn []
(r/with-let [v (swap! n1 inc)]
(swap! n2 inc)
[:div @val]
(finally
(swap! n3 inc))))]
(with-mounted-component [c]
(fn [_ div]
(is (= [1 1 0] [@n1 @n2 @n3]))
(swap! val inc)
(is (= [1 1 0] [@n1 @n2 @n3]))
(r/flush)
(is (= [1 2 0] [@n1 @n2 @n3]))))
(is (= [1 2 1] [@n1 @n2 @n3])))))
(deftest with-let-destroy-only
(when isClient
(let [n1 (atom 0)
n2 (atom 0)
c (fn []
(r/with-let []
(swap! n1 inc)
[:div]
(finally
(swap! n2 inc))))]
(with-mounted-component [c]
(fn [_ div]
(is (= [1 0] [@n1 @n2]))))
(is (= [1 1] [@n1 @n2])))))
(deftest with-let-arg
(when isClient
(let [a (atom 0)
s (r/atom "foo")
f (fn [x]
(r/with-let []
(reset! a x)
[:div x]))
c (fn []
(r/with-let []
[f @s]))]
(with-mounted-component [c]
(fn [_ div]
(is (= @a "foo"))
(reset! s "bar")
(r/flush)
(is (= @a "bar")))))))
(deftest with-let-non-reactive
(let [n1 (atom 0)
n2 (atom 0)
n3 (atom 0)
c (fn []
(r/with-let [a (swap! n1 inc)]
(swap! n2 inc)
[:div a]
(finally
(swap! n3 inc))))]
(is (= (rstr [c]) (rstr [:div 1])))
(is (= [1 1 1] [@n1 @n2 @n3]))))
(deftest lifecycle
(let [n1 (atom 0)
t (atom 0)
res (atom {})
add-args (fn [key args]
(swap! res assoc key
{:at (swap! n1 inc)
:args (vec args)}))
render (fn [& args]
(this-as c (is (= c (r/current-component))))
(add-args :render args)
[:div "" (first args)])
render2 (fn [& args]
(add-args :render args)
[:div "" (first args)])
ls {:get-initial-state
(fn [& args]
(reset! t (first args))
(add-args :initial-state args)
{:foo "bar"})
:component-will-mount
(fn [& args]
(this-as c (is (= c (first args))))
(add-args :will-mount args))
:component-did-mount
(fn [& args]
(this-as c (is (= c (first args))))
(add-args :did-mount args))
:should-component-update
(fn [& args]
(this-as c (is (= c (first args))))
(add-args :should-update args) true)
:component-will-receive-props
(fn [& args]
(this-as c (is (= c (first args))))
(add-args :will-receive args))
:component-will-update
(fn [& args]
(this-as c (is (= c (first args))))
(add-args :will-update args))
:component-did-update
(fn [& args]
(this-as c (is (= c (first args))))
(add-args :did-update args))
:component-will-unmount
(fn [& args]
(this-as c (is (= c (first args))))
(add-args :will-unmount args))}
c1 (r/create-class
(assoc ls :reagent-render render))
defarg ["a" "b"]
arg (r/atom defarg)
comp (atom c1)
c2 (fn []
(apply vector @comp @arg))
cnative (fn []
(into [:> @comp] @arg))
check (fn []
(is (= (:initial-state @res)
{:at 1 :args [@t]}))
(is (= (:will-mount @res)
{:at 2 :args [@t]}))
(is (= (:render @res)
{:at 3 :args ["a" "b"]}))
(is (= (:did-mount @res)
{:at 4 :args [@t]}))
(reset! arg ["a" "c"])
(r/flush)
(is (= (:will-receive @res)
{:at 5 :args [@t [@comp "a" "c"]]}))
(is (= (:should-update @res)
{:at 6 :args [@t [@comp "a" "b"] [@comp "a" "c"]]}))
(is (= (:will-update @res)
{:at 7 :args [@t [@comp "a" "c"]]}))
(is (= (:render @res)
{:at 8 :args ["a" "c"]}))
(is (= (:did-update @res)
{:at 9 :args [@t [@comp "a" "b"]]})))]
(when isClient
(with-mounted-component [c2] check)
(is (= (:will-unmount @res)
{:at 10 :args [@t]}))
(reset! comp (with-meta render2 ls))
(reset! arg defarg)
(reset! n1 0)
(with-mounted-component [c2] check)
(is (= (:will-unmount @res)
{:at 10 :args [@t]})))))
(deftest lifecycle-native
(let [n1 (atom 0)
t (atom 0)
res (atom {})
oldprops (atom nil)
newprops (atom nil)
add-args (fn [key args]
(swap! res assoc key
{:at (swap! n1 inc)
:args (vec args)}))
render (fn [& args]
(this-as
c
(when @newprops
(is (= @newprops) (first args))
(is (= @newprops) (r/props c)))
(is (= c (r/current-component)))
(is (= (first args) (r/props c)))
(add-args :render
{:children (r/children c)})
[:div "" (first args)]))
ls {:get-initial-state
(fn [& args]
(reset! t (first args))
(reset! oldprops (-> args first r/props))
(add-args :initial-state args)
{:foo "bar"})
:component-will-mount
(fn [& args]
(this-as c (is (= c (first args))))
(add-args :will-mount args))
:component-did-mount
(fn [& args]
(this-as c (is (= c (first args))))
(add-args :did-mount args))
:should-component-update
(fn [& args]
(this-as c (is (= c (first args))))
(add-args :should-update args) true)
:component-will-receive-props
(fn [& args]
(reset! newprops (-> args second second))
(this-as c
(is (= c (first args)))
(add-args :will-receive (into [(dissoc (r/props c) :children)]
(:children (r/props c))))))
:component-will-update
(fn [& args]
(this-as c (is (= c (first args))))
(add-args :will-update args))
:component-did-update
(fn [& args]
(this-as c (is (= c (first args))))
(add-args :did-update args))
:component-will-unmount
(fn [& args]
(this-as c (is (= c (first args))))
(add-args :will-unmount args))}
c1 (r/create-class
(assoc ls :reagent-render render))
defarg [{:foo "bar"} "a" "b"]
arg (r/atom defarg)
comp (atom c1)
cnative (fn []
(into [:> @comp] @arg))
check (fn []
(is (= (:initial-state @res)
{:at 1 :args [@t]}))
(is (= (:will-mount @res)
{:at 2 :args [@t]}))
(is (= (:render @res)
{:at 3 :args [[:children ["a" "b"]]]}))
(is (= (:did-mount @res)
{:at 4 :args [@t]}))
(reset! arg [{:f "oo"} "a" "c"])
(r/flush)
(is (= (:will-receive @res)
{:at 5 :args [{:foo "bar"} "a" "b"]}))
(let [a (:should-update @res)
{at :at
[this oldv newv] :args} a]
(is (= at 6))
(is (= (count (:args a)) 3))
(is (= (js->clj oldv) (js->clj [@comp @oldprops])))
(is (= newv [@comp @newprops])))
(let [a (:will-update @res)
{at :at
[this newv] :args} a]
(is (= at 7))
(is (= newv [@comp @newprops])))
(is (= (:render @res)
{:at 8 :args [[:children ["a" "c"]]]}))
(let [a (:did-update @res)
{at :at
[this oldv] :args} a]
(is (= at 9))
(is (= oldv [@comp @oldprops]))))]
(when isClient
(with-mounted-component [cnative] check)
(is (= (:will-unmount @res)
{:at 10 :args [@t]})))))
(defn foo []
[:div])
(defn log-error [& f]
(debug/error (apply str f)))
(defn wrap-capture-window-error [f]
(if (exists? js/window)
(fn []
(let [org js/console.onerror]
(set! js/window.onerror (fn [e]
(log-error e)
true))
(try
(f)
(finally
(set! js/window.onerror org)))))
(fn []
(let [process (js/require "process")
l (fn [e]
(log-error e))]
(.on process "uncaughtException" l)
(try
(f)
(finally
(.removeListener process "uncaughtException" l)))))))
(defn wrap-capture-console-error [f]
(fn []
(let [org js/console.error]
(set! js/console.error log-error)
(try
(f)
(finally
(set! js/console.error org))))))
(deftest test-err-messages
(when (dev?)
(is (thrown-with-msg?
:default #"Hiccup form should not be empty: \[]"
(rstr [])))
(is (thrown-with-msg?
:default #"Invalid Hiccup tag: \[:>div \[reagenttest.testreagent.foo]]"
(rstr [:>div [foo]])))
(is (thrown-with-msg?
:default #"Invalid Hiccup form: \[23]"
(rstr [23])))
;; This used to be asserted by Reagent, but because it is hard to validate
;; components, now we just trust React will validate elements.
; (is (thrown-with-msg?
; :default #"Expected React component in: \[:> \[:div]]"
; (rstr [:> [:div]])))
;; This is from React.createElement
;; NOTE: browser-npm uses production cjs bundle for now which only shows
;; the minified error
(debug/track-warnings
(wrap-capture-console-error
#(is (thrown-with-msg?
:default #"(Element type is invalid:|Minified React error)"
(rstr [:> [:div]])))))
(is (thrown-with-msg?
:default #"Invalid tag: 'p.'"
(rstr [:p.])))
(when r/is-client
(let [comp1 (fn comp1 [x]
x)
comp2 (fn comp2 [x]
[comp1 x])
comp3 (fn comp3 []
(r/with-let [a (r/atom "foo")]
[:div (for [i (range 0 1)]
^{:key i} [:p @a])]))
comp4 (fn comp4 []
(for [i (range 0 1)]
[:p "foo"]))
nat (create-react-class #js {:render (fn [])})
pkg "reagenttest.testreagent."
stack1 (str "in " pkg "comp1")
stack2 (str "in " pkg "comp2 > " pkg "comp1")
re (fn [& s]
(re-pattern (apply str s)))
rend (fn [x]
(with-mounted-component x identity))]
(let [e (debug/track-warnings
(wrap-capture-window-error
(wrap-capture-console-error
#(is (thrown-with-msg?
:default (re "Invalid tag: 'div.' \\(" stack2 "\\)")
(rend [comp2 [:div. "foo"]]))))))]
(is (= (last (:error e))
(str "Error rendering component (" stack2 ")"))))
(let [e (debug/track-warnings
(wrap-capture-window-error
(wrap-capture-console-error
#(is (thrown-with-msg?
:default (re "Invalid tag: 'div.' \\(" stack1 "\\)")
(rend [comp1 [:div. "foo"]]))))))]
(is (= (last (:error e))
(str "Error rendering component (" stack1 ")"))))
(let [e (debug/track-warnings #(r/as-element [nat]))]
(is (re-find #"Using native React classes directly"
(-> e :warn first))))
(let [e (debug/track-warnings
#(rend [comp3]))]
(is (re-find #"Reactive deref not supported"
(-> e :warn first))))
(let [e (debug/track-warnings
#(r/as-element (comp4)))]
(is (re-find #"Every element in a seq should have a unique :key"
(-> e :warn first))))))))
(deftest test-error-boundary
(let [error (r/atom nil)
error-boundary (fn error-boundary [comp]
(r/create-class
{:component-did-catch (fn [this e info]
(reset! error e))
:reagent-render (fn [comp]
(if @error
[:div "Something went wrong."]
comp))}))
comp1 (fn comp1 []
(throw (js/Error. "Test error")))]
(debug/track-warnings
(wrap-capture-window-error
(wrap-capture-console-error
#(with-mounted-component [error-boundary [comp1]]
(fn [c div]
(r/flush)
(is (= "Test error" (.-message @error)))
(is (re-find #"Something went wrong\." (.-innerHTML div))))))))))
(deftest test-dom-node
(let [node (atom nil)
ref (atom nil)
comp (r/create-class
{:reagent-render (fn test-dom []
[:div {:ref #(reset! ref %)} "foobar"])
:component-did-mount
(fn [this]
(reset! node (r/dom-node this)))})]
(with-mounted-component [comp]
(fn [c div]
(is (= (.-innerHTML @ref) "foobar"))
(is (= (.-innerHTML @node) "foobar"))
(is (identical? @ref @node))))))
(deftest test-empty-input
(is (= "<div><input/></div>"
(rstr [:div [:input]]))))
(deftest test-object-children
(is (= "<p>foo bar1</p>"
(rstr [:p 'foo " " :bar nil 1])))
(is (= "<p>#&lt;Atom: 1&gt;</p>"
(rstr [:p (r/atom 1)]))))
(deftest test-after-render
(let [spy (atom 0)
val (atom 0)
exp (atom 0)
node (atom nil)
state (r/atom 0)
comp (fn []
(let [old @spy]
(is (nil? (r/after-render
(fn []
(is (= "DIV" ($ @node :tagName)))
(swap! spy inc)))))
(is (= old @spy))
(is (= @exp @val))
[:div {:ref #(reset! node %)} @state]))]
(with-mounted-component [comp]
(fn [c div]
(is (= @spy 1))
(swap! state inc)
(is (= @spy 1))
(is (nil? (r/next-tick #(swap! val inc))))
(reset! exp 1)
(is (= @val 0))
(is (nil? (r/flush)))
(is (= @val 1))
(is (= @spy 2))
(is (nil? (r/force-update c)))
(is (= @spy 3))
(is (nil? (r/next-tick #(reset! spy 0))))
(is (= @spy 3))
(r/flush)
(is (= @spy 0))))
(is (= @node nil))))
(deftest style-property-names-are-camel-cased
(is (re-find #"<div style=\"text-align:center(;?)\">foo</div>"
(rstr [:div {:style {:text-align "center"}} "foo"]))))
(deftest custom-element-class-prop
(is (re-find #"<custom-element class=\"foobar\">foo</custom-element>"
(rstr [:custom-element {:class "foobar"} "foo"])))
(is (re-find #"<custom-element class=\"foobar\">foo</custom-element>"
(rstr [:custom-element.foobar "foo"]))))
(deftest html-entities
(testing "entity numbers can be unescaped always"
(is (= "<i> </i>"
(rstr [:i (gstr/unescapeEntities "&#160;")]))))
(when r/is-client
(testing "When DOM is available, all named entities can be unescaped"
(is (= "<i> </i>"
(rstr [:i (gstr/unescapeEntities "&nbsp;")]))))))
(defn context-wrapper []
(r/create-class
{:get-child-context (fn []
(this-as this
#js {:foo "bar"}))
:child-context-types #js {:foo prop-types/string.isRequired}
:reagent-render (fn [child]
[:div
"parent,"
child])}))
(defn context-child []
(r/create-class
{:context-types #js {:foo prop-types/string.isRequired}
:reagent-render (fn []
(let [this (r/current-component)]
;; Context property name is not mangled, so need to use gobj/get to access property by string name
;; React extern handles context name.
[:div "child," (gobj/get (.-context this) "foo")]))}))
(deftest context-test
(with-mounted-component [context-wrapper [context-child]]
(fn [c div]
(is (= "parent,child,bar"
(.-innerText div))))))
(deftest test-fragments
(testing "Fragment as array"
(let [comp (fn comp1 []
#js [(r/as-element [:div "hello"])
(r/as-element [:div "world"])])]
(is (= "<div>hello</div><div>world</div>"
(as-string [comp])))))
(testing "Fragment element, :<>"
(let [comp (fn comp2 []
[:<>
[:div "hello"]
[:div "world"]
[:div "foo"] ])]
(is (= "<div>hello</div><div>world</div><div>foo</div>"
(as-string [comp])))))
(testing "Fragment key"
;; This would cause React warning if both fragements didn't have key set
;; But wont fail the test
(let [children (fn comp4 []
[:<>
[:div "foo"]])
comp (fn comp3 []
[:div
(list
[:<>
{:key 1}
[:div "hello"]
[:div "world"]]
^{:key 2}
[children])])]
(is (= "<div><div>hello</div><div>world</div><div>foo</div></div>"
(as-string [comp]))))))
(defonce my-context (react/createContext "default"))
(def Provider (.-Provider my-context))
(def Consumer (.-Consumer my-context))
(deftest new-context-test
(is (= "<div>Context: foo</div>"
(rstr (r/create-element
Provider #js {:value "foo"}
(r/create-element
Consumer #js {}
(fn [v]
(r/as-element [:div "Context: " v])))))))
(testing "context default value works"
(is (= "<div>Context: default</div>"
(rstr (r/create-element
Consumer #js {}
(fn [v]
(r/as-element [:div "Context: " v])))))))
(testing "context works with adapt-react-class"
(let [provider (r/adapt-react-class Provider)
consumer (r/adapt-react-class Consumer)]
(is (= "<div>Context: bar</div>"
(rstr [provider {:value "bar"}
[consumer {}
(fn [v]
(r/as-element [:div "Context: " v]))]])))))
(testing "context works with :>"
(is (= "<div>Context: bar</div>"
(rstr [:> Provider {:value "bar"}
[:> Consumer {}
(fn [v]
(r/as-element [:div "Context: " v]))]])))))
(deftest on-failed-prop-comparison-in-should-update-swallow-exception-and-do-not-update-component
(let [prop (r/atom {:todos 1})
component-was-updated (atom false)
error-thrown-after-updating-props (atom false)
component-class (r/create-class {:reagent-render (fn [& args]
[:div (str (first args))])
:component-did-update (fn [& args]
(reset! component-was-updated true))})
component (fn []
[component-class @prop])]
(when (and isClient (dev?))
(let [e (debug/track-warnings
#(with-mounted-component [component]
(fn [c div]
(reset! prop (sorted-map 1 2))
(try
(r/flush)
(catch :default e
(reset! error-thrown-after-updating-props true)))
(is (not @component-was-updated))
(is (not @error-thrown-after-updating-props)))))]
(is (re-find #"Warning: Exception thrown while comparing argv's in shouldComponentUpdate:"
(first (:warn e))))))))