From Marcello Duarte's PhpSpec 2.0 ilustrated by examples slides (http://pt.slideshare.net/marcello.duarte/phpspec-20-ilustrated-by-examples)

phpspec_cheatsheet.md

PhpSpec 2.0 Cheat Sheet

Object: $result ($this)

Expectation: should or shouldNot

Matcher: Be...()

Types of Matchers:

1. Identity (===)

   <?php
   
   $this->method()->shouldReturn('something');
   $this->method()->shouldBe('something');
   $this->method()->shouldBeEqualTo('something');
   $this->method()->shouldEqual('something');

2. Comparison (==)

   <?php
   
   $this->method()->shouldBeLike('something');

3. Throw

   <?php
   
   $this->shouldThrow('EndOfTheWorld')->duringGreet();
   $this->shouldThrow('EndOfTheWorld')->during('greet');
   $this->greet()->shouldThrow(new \Exception)->duringGreet();
   $this->greet()->shouldThrow(new \Exception)->during('greet', ['arguments']);

4. Type

   <?php
   
   $this->greet()->shouldBeAnInstanceOf('Greeting');
   $this->greet()->returnAnInstanceOf('Greeting');
   $this->greet()->haveType('Greeting');

5. Object State

   • has -> have

     <?php
     
     class ShoppingCartSpec extends ObjectBehavior
     {
       function it_is_created_empty()
       {
         $this->shouldNotHaveItems();
       }
     }
     
     class ShoppingCart
     {
       public function hasItem() {}
     }

   • is -> be

     <?php
     
     class LifeSpec extends ObjectBehavior
     {
       function it_is_simple()
       {
         $this->shouldBeSimple();
       }
     }
     
     class Life
     {
       public function isSimple() {}
     }

6. Inline

   <?php
   
   class NeoSpec extends ObjectBehavior
   {
     function it_should_be_the_one()
     {
       $this->shouldBeTheOne();
     }
     function getMatchers()
     {
       return [
         'beTheOne' => function($actual)
         {
           return $actual instanceOf TheOne;
         }
       ];
     }
   }

Let & Let Go:

<?php

class SomeSpec extends ObjectBehavior
{
    function let()
    {
      // run before every example
    }
    
    function it_greets_with_hello()
    {
      $this->greet()->shouldReturn('Hello, World!');
    }
    
    function let_go()
    {
      // run after every example
    }
}

Constructors:

<?php

//...

function let()
{
  $this->beConstructedWith('Hello, World!');
}

Stubbing:

<?php

class SomeSpec extends ObjectBehavior
{
    function let(Greeting $greeting)
    {
      $this->beConstructedWith($greeting); 
    }
    
    function it_greets_with_hello_world(Greeting $greeting)
    {
      $greeting->getMessage()->willReturn('Hello, World!');
    
      $this->greet()->shouldReturn('Hello, World!');
    }
}

Mocking:

<?php

class SomeSpec extends ObjectBehavior
{
    function let(Greeter $greeter)
    {
      $this->beConstructedWith($greeter); 
    }
    
    function it_uses_a_greeter(Greeter $greeter)
    {
      $greeting->sayHelloWorld()->shouldBeCalled();
    
      $this->greet();
    }
}

Added <?php in some samples solely for syntax highligthing.

Cool, thanks.
I just converted it to play nice with Dash.app: Kapeli/cheatsheets#1

That's awesome @jk! Congrats!

Will try Dash as soon as possible.