Model testing in PHP

NotesTableTest.php

<?php
namespace App\Test\TestCase\Model\Table;

use App\Model\Table\NotesTable;
use Cake\ORM\RulesChecker;
use Cake\ORM\TableRegistry;
use Cake\TestSuite\TestCase;
use Cake\Validation\Validator;

/**
 * App\Model\Table\NotesTable Test Case
 */
class NotesTableTest extends TestCase
{
    /**
     * Test subject
     *
     * @var \App\Model\Table\NotesTable
     */
    public $Notes;

    /**
     * Fixtures
     *
     * @var array
     */
    public $fixtures = [
        'app.Notes',
        'app.Profiles'
    ];

    /**
     * setUp method
     *
     * @return void
     */
    public function setUp()
    {
        parent::setUp();
        $config = TableRegistry::getTableLocator()->exists('Notes') ? [] : ['className' => NotesTable::class];
        $this->Notes = TableRegistry::getTableLocator()->get('Notes', $config);
    }

    /**
     * tearDown method
     *
     * @return void
     */
    public function tearDown()
    {
        unset($this->Notes);

        parent::tearDown();
    }

    /**
     * Test initialize method
     *
     * @return void
     */
    public function testInitialize()
    {
        $this->Notes->initialize([]);

        $this->assertEquals('id', $this->Notes->getPrimaryKey(), 'The [Notes] default primary key is expected to be `id`');

        $exepctedAssociations = [
            'Profiles'
        ];

        foreach ($exepctedAssociations as $exepctedAssociation) {
            $this->assertTrue(
                $this->Notes->associations()->has($exepctedAssociation),
                "Cursory sanity check The [Notes] Table is expected to be associated with $exepctedAssociation"
            );
        }

        $expectedBehaviors = [
            'Timestamp',
            //'CreatorModifier'
        ];

        foreach ($expectedBehaviors as $expectedBehavior) {
            $this->assertTrue(
                $this->Notes->behaviors()->has($expectedBehavior),
                "Cursory sanity check The [Notes] Table is expected to use $expectedBehavior behavior"
            );
        }
    }

    /**
     * Test validationDefault method
     *
     * @return void
     */
    public function testValidationDefault()
    {
        $validator = new Validator();
        $validator = $this->Notes->validationDefault($validator);

        $this->assertTrue($validator->hasField('id'));
    }

    /**
     * Test buildRules method
     *
     * @return void
     */
    public function testBuildRules()
    {
        $this->assertInstanceOf(
            RulesChecker::class,
            $this->Notes->buildRules(new RulesChecker()),
            "Cursory sanity check buildRules() should return a ruleChecker."
        );
    }
}