How to test for equality in PHPUnit?

@darrion.kuhn 

In PHPUnit, you can test for equality using various assertion methods provided by the PHPUnit_Framework_TestCase class. Here are some examples:

1. Using assertEquals() method:

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$this->assertEquals($expected, $actual);

This method checks if the $expected value is equal to the $actual value. The comparison is done using the "== " operator, so type coercion might occur.

1. Using assertSame() method:

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$this->assertSame($expected, $actual);

Similar to assertEquals(), this method checks if the $expected value is equal to the $actual value. However, it uses the "=== " operator, so type and value must be equal.

1. Using assertEqualXMLStructure() method:

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$this->assertEqualXMLStructure($expected, $actual, $checkAttributes = false, $message = '');

This method is specifically used for comparing XML structures. It checks if two XML documents have the same structure and content.

1. Using assertCount() method:

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$this->assertCount($expectedCount, $array);

This method checks if the $array contains the expected number of elements.

1. Using assertEmpty() and assertNotEmpty() methods:

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$this->assertEmpty($value);
$this->assertNotEmpty($value);

These methods check if the $value is empty or not.

These are just a few examples of the assertion methods you can use in PHPUnit to test for equality. You can find more assertion methods in the PHPUnit documentation: https://phpunit.readthedocs.io/en/9.5/assertions.html