Unit tests in Laravel - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to create a basic unit test class in Laravel.

Laravel

<?php

namespace Tests\Unit;

use PHPUnit\Framework\TestCase;

class ExampleTest extends TestCase
{
    public function testBasicTest()
    {
        $this->assertTrue([1]);
    }
}

Drag options to blanks, or click blank then click option'

ATrue

Btrue

C1

Dfalse

Attempts:

3 left

💡 Hint

Common Mistakes

Using uppercase True instead of lowercase true.

Passing false or 1 instead of true.

The assertTrue method expects a boolean true value to pass the test.

2fill in blank

medium

Complete the code to run a test that checks if two values are equal.

Laravel

public function testValuesAreEqual()
{
    $expected = 5;
    $actual = 2 + 3;
    $this->assert[1]($expected, $actual);
}

Drag options to blanks, or click blank then click option'

ASame

BEqual

CEquals

DEqualTo

Attempts:

3 left

💡 Hint

Common Mistakes

Using assertEqual which does not exist.

Using assertSame which is stricter than needed.

The correct PHPUnit assertion method to check equality is assertEquals.

3fill in blank

hard

Fix the error in the test method to correctly check if a string contains a substring.

Laravel

public function testStringContains()
{
    $string = 'Laravel Framework';
    $this->assertStringContainsString([1], $string);
}

Drag options to blanks, or click blank then click option'

A'framework'

B'Framework'

C'laravel'

D'Laravel'

Attempts:

3 left

💡 Hint

Common Mistakes

Using lowercase 'framework' which does not match the case.

Using lowercase 'laravel' instead of 'Laravel'.

The substring check is case-sensitive. The string contains 'Laravel' with uppercase L, so the exact case must be used.

4fill in blank

hard

Fill both blanks to create a test that expects an exception to be thrown.

Laravel

public function testException()
{
    $this->expectException([1]::class);
    throw new [2]();
}

Drag options to blanks, or click blank then click option'

A\InvalidArgumentException

B\Exception

C\RuntimeException

D\LogicException

Attempts:

3 left

💡 Hint

Common Mistakes

Using different exception classes in the expect and throw statements.

Omitting the leading backslash in the class name.

The test expects an InvalidArgumentException to be thrown, so both places must use the same exception class.

5fill in blank

hard

Fill all three blanks to write a test that mocks a class method and asserts it was called once.

Laravel

public function testMockMethodCall()
{
    $mock = $this->createMock([1]::class);
    $mock->expects($this->once())
         ->method([2])
         ->willReturn([3]);
    
    $result = $mock->process();
    $this->assertEquals('done', $result);
}

Drag options to blanks, or click blank then click option'

AApp\Services\Processor

B'process'

C'done'

DApp\Models\User

Attempts:

3 left

💡 Hint

Common Mistakes

Using wrong class names for mocking.

Passing method name without quotes.

Returning a value that does not match the assertion.

The test mocks the Processor class, expects the process method to be called once, and returns 'done'.