codecept unittest generator

Codecept UnitTest generator

This package allows you to generate PHPUnit tests from annotations, which you can write in your methods documentation.

• Basic usage of this package is to generate your tests skeleton and basic tests.
• You must check and complete all tests you generate, including the most basic methods.
• Files to parse must declare one class, abstract class, trait or interface to be accepted.

Installation

The preferred way to install this extension is through composer.

Either run

composer require hyperia/codecept-unittest-generator:"^1.0"

or add

"hyperia/codecept-unittest-generator": "^1.0"

to the require section of your composer.json.

Configuration

enable UnitGenerator extension in base /codeception.yml config file:

extensions:
    enabled:
        - CodeceptionExtensionRunFailed
    commands:
        - CodeceptionCommandUnitGenerator
unitgenerator:
    config: 
        # erase old target files with new one
        overwrite: true 
        # if you want to generate tests for Interface too
        interface: false
        # automaticaly generate tests for getter / setter method
        auto: true
        # ignore errors that can be ignored
        ignore: true
        # regex (/.*config.php/ for example) that files must not match to have a tests generation
        exclude: '/.*Trait.*/'
        # regex (/.*.php/ for example) that files should match to have a tests generation
        include: '/.*.php/'
    dirs:
        # source directory => target directory
        - common/models: tests/unit/unitgen/common/models/
        - console/models: tests/unit/unitgen/console/models/

Usage

./vendor/bin/codecept generate:unit

Annotations

/**
 * @PHPUnitGen<phpunit_assertion_method>(<expectation>:{<parameters...>}) 
 */

This annotation use some parameters:

• phpunit_assertion_method: It is the PHPUnit assertion method you want ot use (like assertEquals, assertInstanceOf, assertTrue ...).

• expectation: The method return expected value. Some PHPUnit methods does not need it (like assertTrue), so in those cases, it can be null.

• parameters: The method parameters.

See this example, we want to auto generate some simple test for this method:

<?php
// The class to test content

/** @PHPUnitGenAssertEquals('expected string':{1, 2, 'a string'}) */
/** @PHPUnitGenAssertTrue(:{4, 5, 'another'}) */
/** @PHPUnitGenAssertEquals(null) */
/** @PHPUnitGenAssertNull() */
public function method(int $arg1 = 0, int $arg2 = 0, string $arg3 = 'default') {}

Those annotations will create basic PHPUnit tests:

<?php
// The generated test for "method" in tests class

$this->assertEquals('expectation string', $this->method(1, 2, 'a string'));
$this->assertTrue($this->method(4, 5, 'another'));
$this->AssertEquals(null, $this->method());
$this->assertNull($this->method());

Getter and setter annotation

<?php
// The class to test content

/** @PHPUnitGenGet() */
/** @PHPUnitGenSet() */

Those two annotations will allow you to auto-generate tests for simple getter / setter. Your getter / setter needs to be named like the following:

get<MyProperty>() {}
set<MyProperty>() {}

PHPUnit Generator has an "auto" option: If you activate it, it will search for the property when it find a method beginning with "get" or "set", and if the property exists, it will generate tests.

Private or protected method

If the method to test is private or protected, PHPUnit Generator will access the method with PHP ReflectionClass.

Requirements

UnitGenerator needs the following components to run:

• Codeception UnitGenerator is a module for Codeception. It will need a running version of this tool.
• Phpunit-generator package.