- This is the code we start with.…We have a simple snippet that uses our Email class…to send messages.…Behind the scenes, this Email class just uses PHP's…default email-sending mechanism.…Now, we're not actually sending a message here,…I've commented that section out.…But we can see it would have sent a message…and we go ahead an echo a statement saying that.…While this works as expected, we don't have…a good way of testing it until we insert a mock object.…So if we load this file in the browser.…Here's what we get.…We get the echo statement of…"This email has been sent."…This is how we modify the object.…
We extend our base object and override…the individual methods that we need to.…In this case, we want to change how…the send method words, as in we don't actually…want it to send.…You can see here the MockEmail class…has extended the Email class.…We've written our own version of send(),…which just echos a statement,…"This would not have sent a message."…Therefore, we implement that single method…and leave everything else alone…
Author
Released
1/28/2015- Accessing data with the active record and table data gateway patterns
- Creating objects with the factory, singleton, and mock objects patterns
- Extending code with decorator and adapter patterns
- Structuring applications with MVC and Action-Domain-Responder patterns
Each chapter features a design pattern in a real-world coding scenario, and closes with a practice challenge to test your new skills.
Skill Level Intermediate
Duration
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PHP: Creating Secure Websites (2014)
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PHP: Accessing Databases with PDO and MySQLi
with David Powers3h 47m Intermediate
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Introduction
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Welcome51s
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1. The Active Record Pattern
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2. The Adapter Pattern
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3. The Decorator Pattern
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4. The Factory Pattern
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5. Mock Objects
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Introducing mock objects2m 18s
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6. The Model-View-Controller Pattern
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7. The Action-Domain-Response Pattern
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8. The Publish/Subscriber Pattern
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9. The Singleton Pattern
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10. The Strategy Pattern
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11. The Table Data Gateway Pattern
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Conclusion
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Next steps2m 8s
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Video: Exploring a use case for mock objects