First CodeCeption setup.

.gitignore

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 TODO
 composer.phar
 vendor
+tests/_output/*

codeception.yml

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+actor: Tester
+paths:
+    tests: tests
+    log: tests/_output
+    data: tests/_data
+    support: tests/_support
+    envs: tests/_envs
+settings:
+    bootstrap: _bootstrap.php
+    colors: true
+    memory_limit: 1024M
+extensions:
+    enabled:
+        - Codeception\Extension\RunFailed
+modules:
+    config:
+        Db:
+            dsn: ''
+            user: ''
+            password: ''
+            dump: tests/_data/dump.sql

tests/_bootstrap.php

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+<?php
+// This is global bootstrap for autoloading

tests/_data/dump.sql

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+/* Replace this file with actual dump of your database */

tests/_output/.gitignore

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+*
+!.gitignore

tests/_support/AcceptanceTester.php

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+<?php
+
+
+/**
+ * Inherited Methods
+ * @method void wantToTest($text)
+ * @method void wantTo($text)
+ * @method void execute($callable)
+ * @method void expectTo($prediction)
+ * @method void expect($prediction)
+ * @method void amGoingTo($argumentation)
+ * @method void am($role)
+ * @method void lookForwardTo($achieveValue)
+ * @method void comment($description)
+ * @method \Codeception\Lib\Friend haveFriend($name, $actorClass = null)
+ *
+ * @SuppressWarnings(PHPMD)
+*/
+class AcceptanceTester extends \Codeception\Actor
+{
+    use _generated\AcceptanceTesterActions;
+
+   /**
+    * Define custom actions here
+    */
+}

tests/_support/FunctionalTester.php

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+<?php
+
+
+/**
+ * Inherited Methods
+ * @method void wantToTest($text)
+ * @method void wantTo($text)
+ * @method void execute($callable)
+ * @method void expectTo($prediction)
+ * @method void expect($prediction)
+ * @method void amGoingTo($argumentation)
+ * @method void am($role)
+ * @method void lookForwardTo($achieveValue)
+ * @method void comment($description)
+ * @method \Codeception\Lib\Friend haveFriend($name, $actorClass = null)
+ *
+ * @SuppressWarnings(PHPMD)
+*/
+class FunctionalTester extends \Codeception\Actor
+{
+    use _generated\FunctionalTesterActions;
+
+   /**
+    * Define custom actions here
+    */
+}

tests/_support/Helper/Acceptance.php

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+<?php
+namespace Helper;
+// here you can define custom actions
+// all public methods declared in helper class will be available in $I
+
+class Acceptance extends \Codeception\Module
+{
+
+}

tests/_support/Helper/Functional.php

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+<?php
+namespace Helper;
+// here you can define custom actions
+// all public methods declared in helper class will be available in $I
+
+class Functional extends \Codeception\Module
+{
+
+}

tests/_support/Helper/Unit.php

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+<?php
+namespace Helper;
+// here you can define custom actions
+// all public methods declared in helper class will be available in $I
+
+class Unit extends \Codeception\Module
+{
+
+}

tests/_support/UnitTester.php

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+<?php
+
+
+/**
+ * Inherited Methods
+ * @method void wantToTest($text)
+ * @method void wantTo($text)
+ * @method void execute($callable)
+ * @method void expectTo($prediction)
+ * @method void expect($prediction)
+ * @method void amGoingTo($argumentation)
+ * @method void am($role)
+ * @method void lookForwardTo($achieveValue)
+ * @method void comment($description)
+ * @method \Codeception\Lib\Friend haveFriend($name, $actorClass = null)
+ *
+ * @SuppressWarnings(PHPMD)
+*/
+class UnitTester extends \Codeception\Actor
+{
+    use _generated\UnitTesterActions;
+
+   /**
+    * Define custom actions here
+    */
+}

tests/_support/_generated/FunctionalTesterActions.php

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+<?php  //[STAMP] 65f4e005f3be69d169e0f598e3c24741
+namespace _generated;
+
+// This class was automatically generated by build task
+// You should not change it manually as it will be overwritten on next build
+// @codingStandardsIgnoreFile
+
+use Helper\Functional;
+
+trait FunctionalTesterActions
+{
+    /**
+     * @return \Codeception\Scenario
+     */
+    abstract protected function getScenario();
+
+    
+}

tests/_support/_generated/UnitTesterActions.php

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+<?php  //[STAMP] 8e21b279d98b0140a061bf94fd91c121
+namespace _generated;
+
+// This class was automatically generated by build task
+// You should not change it manually as it will be overwritten on next build
+// @codingStandardsIgnoreFile
+
+use Codeception\Module\Asserts;
+use Helper\Unit;
+
+trait UnitTesterActions
+{
+    /**
+     * @return \Codeception\Scenario
+     */
+    abstract protected function getScenario();
+
+    
+    /**
+     * [!] Method is generated. Documentation taken from corresponding module.
+     *
+     * Checks that two variables are equal.
+     *
+     * @param        $expected
+     * @param        $actual
+     * @param string $message
+     *
+     * @return mixed
+     * @see \Codeception\Module\Asserts::assertEquals()
+     */
+    public function assertEquals($expected, $actual, $message = null) {
+        return $this->getScenario()->runStep(new \Codeception\Step\Action('assertEquals', func_get_args()));
+    }
+
+ 
+    /**
+     * [!] Method is generated. Documentation taken from corresponding module.
+     *
+     * Checks that two variables are not equal
+     *
+     * @param        $expected
+     * @param        $actual
+     * @param string $message
+     * @see \Codeception\Module\Asserts::assertNotEquals()
+     */
+    public function assertNotEquals($expected, $actual, $message = null) {
+        return $this->getScenario()->runStep(new \Codeception\Step\Action('assertNotEquals', func_get_args()));
+    }
+
+ 
+    /**
+     * [!] Method is generated. Documentation taken from corresponding module.
+     *
+     * Checks that two variables are same
+     *
+     * @param        $expected
+     * @param        $actual
+     * @param string $message
+     *
+     * @return mixed
+     * @see \Codeception\Module\Asserts::assertSame()
+     */
+    public function assertSame($expected, $actual, $message = null) {
+        return $this->getScenario()->runStep(new \Codeception\Step\Action('assertSame', func_get_args()));
+    }
+
+ 
+    /**
+     * [!] Method is generated. Documentation taken from corresponding module.
+     *
+     * Checks that two variables are not same
+     *
+     * @param        $expected
+     * @param        $actual
+     * @param string $message
+     * @see \Codeception\Module\Asserts::assertNotSame()
+     */
+    public function assertNotSame($expected, $actual, $message = null) {
+        return $this->getScenario()->runStep(new \Codeception\Step\Action('assertNotSame', func_get_args()));
+    }
+
+ 
+    /**
+     * [!] Method is generated. Documentation taken from corresponding module.
+     *
+     * Checks that actual is greater than expected
+     *
+     * @param        $expected
+     * @param        $actual
+     * @param string $message
+     * @see \Codeception\Module\Asserts::assertGreaterThan()
+     */
+    public function assertGreaterThan($expected, $actual, $message = null) {
+        return $this->getScenario()->runStep(new \Codeception\Step\Action('assertGreaterThan', func_get_args()));
+    }
+
+ 
+    /**
+     * [!] Method is generated. Documentation taken from corresponding module.
+     *
+     * @deprecated
+     * @see \Codeception\Module\Asserts::assertGreaterThen()
+     */
+    public function assertGreaterThen($expected, $actual, $message = null) {
+        return $this->getScenario()->runStep(new \Codeception\Step\Action('assertGreaterThen', func_get_args()));
+    }
+
+ 
+    /**
+     * [!] Method is generated. Documentation taken from corresponding module.
+     *
+     * Checks that actual is greater or equal than expected
+     *
+     * @param        $expected
+     * @param        $actual
+     * @param string $message
+     * @see \Codeception\Module\Asserts::assertGreaterThanOrEqual()
+     */
+    public function assertGreaterThanOrEqual($expected, $actual, $message = null) {
+        return $this->getScenario()->runStep(new \Codeception\Step\Action('assertGreaterThanOrEqual', func_get_args()));
+    }
+
+ 
+    /**
+     * [!] Method is generated. Documentation taken from corresponding module.
+     *
+     * @deprecated
+     * @see \Codeception\Module\Asserts::assertGreaterThenOrEqual()
+     */
+    public function assertGreaterThenOrEqual($expected, $actual, $message = null) {
+        return $this->getScenario()->runStep(new \Codeception\Step\Action('assertGreaterThenOrEqual', func_get_args()));
+    }
+
+ 
+    /**
+     * [!] Method is generated. Documentation taken from corresponding module.
+     *
+     * Checks that actual is less than expected
+     *
+     * @param        $expected
+     * @param        $actual
+     * @param string $message
+     * @see \Codeception\Module\Asserts::assertLessThan()
+     */
+    public function assertLessThan($expected, $actual, $message = null) {
+        return $this->getScenario()->runStep(new \Codeception\Step\Action('assertLessThan', func_get_args()));
+    }
+
+ 
+    /**
+     * [!] Method is generated. Documentation taken from corresponding module.
+     *
+     * Checks that actual is less or equal than expected
+     *
+     * @param        $expected
+     * @param        $actual
+     * @param string $message
+     * @see \Codeception\Module\Asserts::assertLessThanOrEqual()
+     */
+    public function assertLessThanOrEqual($expected, $actual, $message = null) {
+        return $this->getScenario()->runStep(new \Codeception\Step\Action('assertLessThanOrEqual', func_get_args()));
+    }
+
+ 
+    /**
+     * [!] Method is generated. Documentation taken from corresponding module.
+     *
+     * Checks that haystack contains needle
+     *
+     * @param        $needle
+     * @param        $haystack
+     * @param string $message
+     * @see \Codeception\Module\Asserts::assertContains()
+     */
+    public function assertContains($needle, $haystack, $message = null) {
+        return $this->getScenario()->runStep(new \Codeception\Step\Action('assertContains', func_get_args()));
+    }
+
+ 
+    /**
+     * [!] Method is generated. Documentation taken from corresponding module.
+     *
+     * Checks that haystack doesn't contain needle.
+     *
+     * @param        $needle
+     * @param        $haystack
+     * @param string $message
+     * @see \Codeception\Module\Asserts::assertNotContains()
+     */
+    public function assertNotContains($needle, $haystack, $message = null) {
+        return $this->getScenario()->runStep(new \Codeception\Step\Action('assertNotContains', func_get_args()));
+    }
+
+ 
+    /**
+     * [!] Method is generated. Documentation taken from corresponding module.
+     *
+     * Checks that string match with pattern
+     *
+     * @param string $pattern
+     * @param string $string
+     * @param string $message
+     * @see \Codeception\Module\Asserts::assertRegExp()
+     */
+    public function assertRegExp($pattern, $string, $message = null) {
+        return $this->getScenario()->runStep(new \Codeception\Step\Action('assertRegExp', func_get_args()));
+    }
+
+ 
+    /**
+     * [!] Method is generated. Documentation taken from corresponding module.
+     *
+     * Checks that string not match with pattern
+     *
+     * @param string $pattern
+     * @param string $string
+     * @param string $message
+     * @see \Codeception\Module\Asserts::assertNotRegExp()
+     */
+    public function assertNotRegExp($pattern, $string, $message = null) {
+        return $this->getScenario()->runStep(new \Codeception\Step\Action('assertNotRegExp', func_get_args()));
+    }
+
+ 
+    /**
+     * [!] Method is generated. Documentation taken from corresponding module.
+     *
+     * Checks that variable is empty.
+     *
+     * @param        $actual
+     * @param string $message
+     * @see \Codeception\Module\Asserts::assertEmpty()
+     */
+    public function assertEmpty($actual, $message = null) {
+        return $this->getScenario()->runStep(new \Codeception\Step\Action('assertEmpty', func_get_args()));
+    }
+
+ 
+    /**
+     * [!] Method is generated. Documentation taken from corresponding module.
+     *
+     * Checks that variable is not empty.
+     *
+     * @param        $actual
+     * @param string $message
+     * @see \Codeception\Module\Asserts::assertNotEmpty()
+     */
+    public function assertNotEmpty($actual, $message = null) {
+        return $this->getScenario()->runStep(new \Codeception\Step\Action('assertNotEmpty', func_get_args()));
+    }
+
+ 
+    /**
+     * [!] Method is generated. Documentation taken from corresponding module.
+     *
+     * Checks that variable is NULL
+     *
+     * @param        $actual
+     * @param string $message
+     * @see \Codeception\Module\Asserts::assertNull()
+     */
+    public function assertNull($actual, $message = null) {
+        return $this->getScenario()->runStep(new \Codeception\Step\Action('assertNull', func_get_args()));
+    }
+
+ 
+    /**
+     * [!] Method is generated. Documentation taken from corresponding module.
+     *
+     * Checks that variable is not NULL
+     *
+     * @param        $actual
+     * @param string $message
+     * @see \Codeception\Module\Asserts::assertNotNull()
+     */
+    public function assertNotNull($actual, $message = null) {
+        return $this->getScenario()->runStep(new \Codeception\Step\Action('assertNotNull', func_get_args()));
+    }
+
+ 
+    /**
+     * [!] Method is generated. Documentation taken from corresponding module.
+     *
+     * Checks that condition is positive.
+     *
+     * @param        $condition
+     * @param string $message
+     * @see \Codeception\Module\Asserts::assertTrue()
+     */
+    public function assertTrue($condition, $message = null) {
+        return $this->getScenario()->runStep(new \Codeception\Step\Action('assertTrue', func_get_args()));
+    }
+
+ 
+    /**
+     * [!] Method is generated. Documentation taken from corresponding module.
+     *
+     * Checks that condition is negative.
+     *
+     * @param        $condition
+     * @param string $message
+     * @see \Codeception\Module\Asserts::assertFalse()
+     */
+    public function assertFalse($condition, $message = null) {
+        return $this->getScenario()->runStep(new \Codeception\Step\Action('assertFalse', func_get_args()));
+    }
+
+ 
+    /**
+     * [!] Method is generated. Documentation taken from corresponding module.
+     *
+     * Checks if file exists
+     *  
+     * @param string $filename
+     * @param string $message
+     * @see \Codeception\Module\Asserts::assertFileExists()
+     */
+    public function assertFileExists($filename, $message = null) {
+        return $this->getScenario()->runStep(new \Codeception\Step\Action('assertFileExists', func_get_args()));
+    }
+
+ 
+    /**
+     * [!] Method is generated. Documentation taken from corresponding module.
+     *
+     * Checks if file doesn't exists
+     *  
+     * @param string $filename
+     * @param string $message
+     * @see \Codeception\Module\Asserts::assertFileNotExists()
+     */
+    public function assertFileNotExists($filename, $message = null) {
+        return $this->getScenario()->runStep(new \Codeception\Step\Action('assertFileNotExists', func_get_args()));
+    }
+
+ 
+    /**
+     * [!] Method is generated. Documentation taken from corresponding module.
+     *
+     * Fails the test with message.
+     *
+     * @param $message
+     * @see \Codeception\Module\Asserts::fail()
+     */
+    public function fail($message) {
+        return $this->getScenario()->runStep(new \Codeception\Step\Action('fail', func_get_args()));
+    }
+}

tests/acceptance.suite.yml

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+# Codeception Test Suite Configuration
+#
+# Suite for acceptance tests.
+# Perform tests in browser using the WebDriver or PhpBrowser.
+# If you need both WebDriver and PHPBrowser tests - create a separate suite.
+
+class_name: AcceptanceTester
+modules:
+    enabled:
+        - PhpBrowser:
+            url: http://localhost/myapp
+        - \Helper\Acceptance

tests/acceptance/_bootstrap.php

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+<?php
+// Here you can initialize variables that will be available to your tests

tests/unit.suite.yml

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+# Codeception Test Suite Configuration
+#
+# Suite for unit (internal) tests.
+
+class_name: UnitTester
+modules:
+    enabled:
+        - Asserts
+        - \Helper\Unit

tests/unit/_bootstrap.php

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+<?php
+// Here you can initialize variables that will be available to your tests