This is a proposal for a lightning talk at Reactive Conf. Please 🌟 this gist to push the proposal!
Do you test presentational logic of your components? No? Yes, but you feel like you are writing a lot of dummy tests? You even probably use snapshot tests for that, but don't feel like you make enought value from them..
If so, click 🌟 button on that Gist!
I'll talk how our team is using snapshot testing to iterate faster,
| rightCurry = function (f) { | |
| let args = Array.prototype.slice.call(arguments).slice(1); | |
| return function(firstArg) { | |
| return f.apply(null, [firstArg].concat(args)) | |
| } | |
| } | |
| fullName = function (name, middleName, lastName) { return name + " " + middleName + " " + lastName } | |
| // rightCurry(fullName, "David", "Doe")("John") -> "John David Doe" |
| flipArgs = function (f) { | |
| return function() { | |
| let args = Array.prototype.slice.call(arguments); | |
| return f.apply(null, args.slice(1).concat(args[0])) | |
| } | |
| } | |
| fullName = function(name, lastName) { return name + ' ' + lastName} | |
| // fullName("John", "Doe") -> "John Doe" |
| (defn split-by | |
| "Create from sequence (l) sequence of sequences with specified number of elemenets (c) | |
| Example: | |
| (split-by 2 [1 2 3 4 5 6 7]) | |
| => '((1 2) (3 4) (5 6) (7))" | |
| [c l] | |
| (if (seq l) | |
| (cons (take c l) (split-by c (drop c l))))) | |
| (defn split-into-chunks |
| (defn validate [data schema] | |
| (into {} (for [[x y] schema] | |
| [x (if (contains? data x) | |
| (let [res (x data)] | |
| (try (y res) (catch IllegalArgumentException e false))) | |
| false)]))) | |
| (defn valid? [data schema] | |
| (every? true? (vals (validate data schema)))) |
| h1 = { "a" => 100, "b" => 200 } | |
| h2 = { "b" => 254, "c" => 300 } | |
| h3 = h1.merge(h2) | |
| h3 #=> {"a"=>100, "b"=>254, "c"=>300} | |
| h1 #=> { "a" => 100, "b" => 200 } |
| (defroutes posts-routes | |
| (context "/posts" [] | |
| (GET "/" request ...) | |
| (GET "/new" request ...) | |
| (POST "/" request ...))) |
| (use 'net.cgrand.enlive-html) | |
| ; Define our posts, it can be response from the database. | |
| (def posts [{:title "First post" | |
| :content "Content of my first post." | |
| :comments [{ | |
| :user "edtsech" | |
| :text "boom"} | |
| {:user "anonymous" | |
| :text "blah-blah-blah"}]} |
| THOUSAND = -> p { -> x { p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[ | |
| p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[ | |
| p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[ | |
| p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[ | |
| p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p[p |
| ContentFor = Class.new | |
| x = ContentFor.new | |
| puts x.class.object_id # => 2266662780 | |
| # puts x.class.name | |
| ContentFor = Class.new | |
| y = ContentFor.new | |
| puts x.class.object_id # => 2266662780 |
