sachaarbonel

Testing notes

Uncle Bob: Test First

Source: http://blog.8thlight.com/uncle-bob/2013/09/23/Test-first.html

• tests are specs for the system and are more important than the system itself
• (Tests should be) short, well factored, and well named. They ought to read like specifications; because they are specifications
• (Goal:) trust your test suite to the extent that, if it passes, you know you

sachaarbonel

package main

import "fmt"

type Strategy func(string, string) string

type Strategic interface {
  SetStrategy(Strategy)
  Result() string
}

sachaarbonel

---------- Forwarded message ----------

From: Mark S. Miller <[email protected]>
Date: Tue, Nov 16, 2010 at 3:44 PM
Subject: "Future of Javascript" doc from our internal "JavaScript Summit"
last week
To: [email protected]

sachaarbonel

package main

import "strconv"
import "fmt"

type Color string
type Make string
type Model string

const (

sachaarbonel

// BLOC

class ErrorBloc extends Bloc<ErrorBlocEvent, ErrorBlocState> {
  @override
  Stream<ClaimState> mapEventToState(ErrorBlocState currentState, ErrorBlocEvent event) async* {
    if (event is SomeEvent) {
      yield Processing();
      final result = await _doSomething();
      if(result.success) {
        yield Success();

sachaarbonel

#!/usr/bin/env bash

set -e

cweb_version=0.6.16
cweb=https://github.com/koute/cargo-web/releases/download/$cweb_version/cargo-web-x86_64-unknown-linux-gnu.gz
curl -Lo cargo-web.gz $cweb
gunzip cargo-web.gz
chmod u+x cargo-web

sachaarbonel

-- see https://github.com/ankidroid/Anki-Android/wiki/Database-Structure for a more maintained version of this

-- cards are what you review. easy!
CREATE TABLE cards (
    id              integer primary key,
      -- the epoch milliseconds of when the card was created
    nid             integer not null,
      -- notes.id
    did             integer not null,
      -- deck id (available in col table)

sachaarbonel

package main

/* 
parse json, extract type in json and save to graphql.schema
 */
import (
	"io/ioutil"
	"encoding/json"
	"reflect"
	"fmt"

sachaarbonel

Java to Dart

This is an ad-hoc Java-to-Dart translator originally written on two (admittedly long) evenings.

See http://sma.github.io/stuff/java2dartweb/java2dartweb.html for a demo.

Note: It doesn't support the complete Java grammar specification and cannot translate everything. It only translates syntax and does not attempt to translate Java library classes and methods to Dart equivalents (with the exception of String.charAt and StringBuffer.append). You will have to make changes to the resulting Dart code. It does not support anonymous inner classes.

However, I was able to successfully convert a 7000+ line command line application with only minimal fixes in 30 minutes.

sachaarbonel

import 'dart:convert';
import 'dart:html';
import 'dart:math';
import 'dart:svg' as svg;

main() {
  HttpRequest.getString('svg-datas.json').then(JSON.decode).then(calculateGravity);
}

calculateGravity(Map<String, Map> paths) {