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Fixtures

Name: Fixtures
Uploaded: 2019-04-10T11:59:03Z
Duration: 348 s
Description: Fixtures allow you to setup all the code and data you'll need to run your test and share that set up across multiple tests.

5:48 with Alena Holligan

Fixtures allow you to setup all the code and data you'll need to run your test and share that set up across multiple tests.

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Documentation for Fixtures

tests/FullRecipeTest.php

<?php
use the PHPUnit\Framework\TestCase;

class FullRecipeTest extends TestCase
{
    protected $recipe;

    protected function setUp(): void
    {
        $this->recipe = new Recipe("Belgian Waffles");

        $this->recipe->addIngredient("Egg", 2);
        $this->recipe->addIngredient("Butter", 1, "Cup");
        $this->recipe->addIngredient("sugar", .5, "Cup");
        $this->recipe->addIngredient("milk", 1.5, "cup");
        $this->recipe->addIngredient("vanilla", 2, "tsp");
        $this->recipe->addIngredient("flour", 2, "cup");
        $this->recipe->addIngredient("baking powder", 1, "tbsp");

        $this->recipe->addInstruction("Separate eggs. Whip egg whites until stiff peaks form. Set asside.");
        $this->recipe->addInstruction("Melt butter, and combine with sugar. Add egg yokes and mix well.");
        $this->recipe->addInstruction("Add milk and vanilla and mix well.");
        $this->recipe->addInstruction("Add flour and sugar until just combined. ");
        $this->recipe->addInstruction("Fold in egg whites.");
        $this->recipe->addInstruction("Follow instructions on waffle maker or add .5 cup of batter to waffle iron and cook for 4 minutes.");

        $this->recipe->setYield("10 waffles");
        $this->recipe->setSource("Alena Holligan");
        $this->recipe->addTag("breakfast, quick bread");
    }

    /** @test */
    function hasTitle()
    {
        $this->assertEquals(
            "Belgian Waffles",
            $this->recipe->getTitle()
        );
    }
}

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I want to be able to run tests on a fully implemented recipe. 0:00

I could setup a full recipe for each test, but there is an easier way. 0:05

Fixtures allow you to setup all the code and 0:10

the data that you'll need for your tests and show that across multiple tests. 0:13

We can use the setUp. 0:18

Much like a constructor, our setUp function will allow us to add 0:22

code that needs to happen when a test is run. 0:26

You'll notice the return type of void because test case is 0:30

an abstract class that defines the framework for this function. 0:34

We're required to use this same return type. 0:39

You can see details by visiting the repository on GitHub, 0:43

or viewing the downloaded code, in abstract class and setup. 0:48

Let's go back to our editor. 0:57

We'll create a new test file for a test that will use a full recipe. 1:00

We'll call this FullRecipeTest. 1:09

We'll use PHPUnit\Framework\TestCase and 1:18

then we'll add a class, 1:23

named FullRecipeTest that extends TestCase. 1:26

Now we can add a protected recipe and 1:37

a protected function of setUp with a return type of void. 1:42

I'm going to copy and paste a full recipe. 1:53

You can get this recipe in the notes associated with this video. 1:56

Now we can use that setUp to write a test. 2:00

We'll use function hasTitle[). 2:05

Now we can use $this->asserEquals("Belgian Waffles", 2:11

$this->recipe->getTitle()). 2:21

Let's run our test again. 2:27

Now we have a little more test coverage, great. 2:32

Let's go back and add a few more tests for this recipe. 2:35

Test, function and 2:41

we'll check if it hasAlIIngredients. 2:43

And this time we're going to this assertCount. 2:53

We're expecting 7 ingredients when 2:57

we call $this->recipe->getIngredients. 3:02

We'll add another for hasAllInstructions. 3:17

$this->assertCount and this time, we'll look for 3:25

6, $this->recipe->getInstructions. 3:31

We'll add another test. 3:39

HasYield, $this->assertEquals("10 waffles", 3:42

$this->recipe->getYield()). 3:51

And another test, hasSource, and we'll 4:01

check $this->assertEquals("Alena 4:08

Holligan", $this->recipe->getSource()) 4:15

And one more we're going to test, hasTags. 4:29

We'll assertCount(2, 4:40

$this->recipe->getTags()), we 4:44

can also add $this->assertEquals, 4:50

and we'll add an array for 4:56

breakfast and quick bread. 5:00

And we'll check $this->recipe->getTags. 5:07

Now let's try running our tests again. 5:16

Great, we have 75% code coverage. 5:20

Let's take a look in the browser. 5:24

Here, we can scroll down and see which methods are not tested yet, 5:26

_toString, addIngredient. 5:31

If we go into addIngredient, 5:36

we see that the two lines that are not tested are throwing an exception. 5:38

Let's go write some tests for checking exceptions. 5:44

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Getting Started with PHP Unit Testing

Fixtures

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