ConsoleApplicationTests   B
last analyzed

Complexity

Total Complexity 8

Size/Duplication

Total Lines 281
Duplicated Lines 18.86 %

Coupling/Cohesion

Components 1
Dependencies 17

Importance

Changes 0
Metric Value
wmc 8
lcom 1
cbo 17
dl 53
loc 281
rs 7.8571
c 0
b 0
f 0

8 Methods

Rating   Name   Duplication   Size   Complexity  
A createConfiguration() 0 11 1
A createApplication() 0 13 1
B testRunHelpCommand() 0 43 1
B testRunHelpSubCommand() 0 39 1
B testRunCommandWithoutClass() 26 26 1
B testRunCommandWithoutArguments() 27 27 1
B testRunCommandWithDefaultHanlder() 0 28 1
A testRunCommandWithCustomPreDispatchHanlder() 0 58 1

How to fix   Duplicated Code   

Duplicated Code

Duplicate code is one of the most pungent code smells. A rule that is often used is to re-structure code once it is duplicated in three or more places.

Common duplication problems, and corresponding solutions are:

1
<?php
2
3
/**
4
 * This file is part of the Cubiche component.
5
 *
6
 * Copyright (c) Cubiche
7
 *
8
 * For the full copyright and license information, please view the LICENSE
9
 * file that was distributed with this source code.
10
 */
11
12
namespace Cubiche\Core\Console\Tests\Units;
13
14
use Cubiche\Core\EventBus\Event\EventBus;
15
use Cubiche\Core\Console\Api\Config\ApplicationConfig;
16
use Cubiche\Core\Console\ConsoleApplication;
17
use Cubiche\Core\Console\Tests\Fixtures\Command\BlogService;
18
use Cubiche\Core\Console\Tests\Fixtures\Command\ChangePostTitleCommand;
19
use Cubiche\Core\Console\Tests\Fixtures\Command\CreateBlogCommand;
20
use Cubiche\Core\Console\Tests\Fixtures\Command\CreatePostCommand;
21
use Cubiche\Core\Console\Tests\Fixtures\Command\PostService;
22
use Cubiche\Core\Cqrs\Command\CommandBus;
23
use Cubiche\Core\EventDispatcher\EventInterface;
24
use Webmozart\Console\Api\Args\Format\Argument;
25
use Webmozart\Console\Api\IO\Input;
26
use Webmozart\Console\Api\IO\IO;
27
use Webmozart\Console\Api\IO\Output;
28
use Webmozart\Console\Args\ArgvArgs;
29
use Webmozart\Console\Handler\Help\HelpHandler;
30
use Webmozart\Console\IO\InputStream\StringInputStream;
31
use Webmozart\Console\IO\OutputStream\BufferedOutputStream;
32
33
/**
34
 * ConsoleApplicationTests class.
35
 *
36
 * $commandBus = CommandBus::create();
37
 *
38
 * $postService = new PostService();
39
 * $commandBus->addHandler(CreateBlogCommand::class, new BlogService());
40
 * $commandBus->addHandler(CreatePostCommand::class, $postService);
41
 * $commandBus->addHandler(ChangePostTitleCommand::class, $postService);
42
 *
43
 * class SampleApplicationConfig extends DefaultApplicationConfig
44
 * {
45
 *     protected function configure()
46
 *     {
47
 *         parent::configure();
48
 *
49
 *         $this
50
 *             ->setName('test')
51
 *             ->setVersion('1.0.0')
52
 *             ->beginCommand('blog')
53
 *                 ->setClass(CreateBlogCommand::class)
54
 *                 ->setDescription('Create a new blog')
55
 *                 ->addArgument('name', Argument::REQUIRED | Argument::STRING, 'The blog name')
56
 *             ->end()
57
 *             ->beginCommand('post')
58
 *                 ->setDescription('Manage posts')
59
 *                 ->beginSubCommand('create')
60
 *                     ->setClass(CreatePostCommand::class)
61
 *                     ->setDescription('Create a new post')
62
 *                     ->addArgument('title', Argument::REQUIRED | Argument::STRING, 'The post title')
63
 *                     ->addArgument('content', Argument::OPTIONAL, 'The post content')
64
 *                     ->onPreDispatchEvent(function(EventInterface $event, IO $io) {
65
 *                         $io->writeLine($event->eventName());
66
 *                     })
67
 *                 ->end()
68
 *                 ->beginSubCommand('change')
69
 *                     ->setClass(ChangePostTitleCommand::class)
70
 *                     ->setDescription('Change the post title')
71
 *                     ->addArgument('title', Argument::REQUIRED | Argument::STRING, 'The new post title')
72
 *                     ->onPostDispatchEvent(function(EventInterface $event, IO $io) {
73
 *                         $io->writeLine($event->eventName());
74
 *                     })
75
 *                 ->end()
76
 *             ->end()
77
 *         ;
78
 *     }
79
 * }
80
 *
81
 * $cli = new ConsoleApplication(new SampleApplicationConfig(), $commandBus);
82
 * $cli->run();
83
 */
84
class ConsoleApplicationTests extends TestCase
85
{
86
    /**
87
     * @return ApplicationConfig
88
     */
89
    protected function createConfiguration()
90
    {
91
        $config = new ApplicationConfig();
92
        $config->setCatchExceptions(false);
93
        $config->setTerminateAfterRun(false);
94
        $config->setIOFactory(function ($application, $args, $inputStream, $outputStream, $errorStream) {
95
            return new IO(new Input($inputStream), new Output($outputStream), new Output($errorStream));
96
        });
97
98
        return $config;
99
    }
100
101
    /**
102
     * @param callable|ApplicationConfig $config
103
     *
104
     * @return ConsoleApplication
105
     */
106
    protected function createApplication($config)
107
    {
108
        $commandBus = CommandBus::create();
109
        $eventBus = EventBus::create();
110
111
        $postService = new PostService($eventBus);
112
113
        $commandBus->addHandler(CreateBlogCommand::class, new BlogService($eventBus));
114
        $commandBus->addHandler(CreatePostCommand::class, $postService);
115
        $commandBus->addHandler(ChangePostTitleCommand::class, $postService);
116
117
        return new ConsoleApplication($config, $commandBus, $eventBus);
118
    }
119
120
    /**
121
     * Test run help.
122
     */
123
    public function testRunHelpCommand()
124
    {
125
        $configCallback = function (ApplicationConfig $config) {
126
            $config
0 ignored issues
show
Bug introduced by
The method end does only exist in Webmozart\Console\Api\Config\CommandConfig, but not in Webmozart\Console\Api\Config\ApplicationConfig.

It seems like the method you are trying to call exists only in some of the possible types.

Let’s take a look at an example:

class A
{
    public function foo() { }
}

class B extends A
{
    public function bar() { }
}

/**
 * @param A|B $x
 */
function someFunction($x)
{
    $x->foo(); // This call is fine as the method exists in A and B.
    $x->bar(); // This method only exists in B and might cause an error.
}

Available Fixes

  1. Add an additional type-check:

    /**
     * @param A|B $x
     */
    function someFunction($x)
    {
        $x->foo();
    
        if ($x instanceof B) {
            $x->bar();
        }
    }
    
  2. Only allow a single type to be passed if the variable comes from a parameter:

    function someFunction(B $x) { /** ... */ }
    
Loading history...
127
                ->beginCommand('help')
128
                    ->markDefault()
129
                    ->setHandler(function () {
130
                        return new HelpHandler();
131
                    })
132
                ->end()
133
            ;
134
        };
135
136
        $this
137
            ->given($config = $this->createConfiguration())
138
            ->and($configCallback($config))
139
            ->and($application = $this->createApplication($config))
140
            ->and($args = new ArgvArgs(array('test', 'help')))
141
            ->and($input = new StringInputStream(''))
142
            ->and($output = new BufferedOutputStream())
143
            ->and($errorOutput = new BufferedOutputStream())
144
            ->when($application->run($args, $input, $output, $errorOutput))
145
            ->then()
146
                ->string($output->fetch())
147
                    ->constant('<c1>help</c1>')
148
        ;
149
150
        $this
151
            ->given($config = $this->createConfiguration())
152
            ->and($configCallback($config))
153
            ->and($application = $this->createApplication(function () use ($config) {
154
                return $config;
155
            }))
156
            ->and($args = new ArgvArgs(array('test', 'help')))
157
            ->and($input = new StringInputStream(''))
158
            ->and($output = new BufferedOutputStream())
159
            ->and($errorOutput = new BufferedOutputStream())
160
            ->when($application->run($args, $input, $output, $errorOutput))
161
            ->then()
162
                ->string($output->fetch())
163
                    ->constant('<c1>help</c1>')
164
        ;
165
    }
166
167
    /**
168
     * Test run help subcommand.
169
     */
170
    public function testRunHelpSubCommand()
171
    {
172
        $configCallback = function (ApplicationConfig $config) {
173
            $config
0 ignored issues
show
Bug introduced by
It seems like you code against a specific sub-type and not the parent class Webmozart\Console\Api\Config\SubCommandConfig as the method setClass() does only exist in the following sub-classes of Webmozart\Console\Api\Config\SubCommandConfig: Cubiche\Core\Console\Api\Config\SubCommandConfig. Maybe you want to instanceof check for one of these explicitly?

Let’s take a look at an example:

abstract class User
{
    /** @return string */
    abstract public function getPassword();
}

class MyUser extends User
{
    public function getPassword()
    {
        // return something
    }

    public function getDisplayName()
    {
        // return some name.
    }
}

class AuthSystem
{
    public function authenticate(User $user)
    {
        $this->logger->info(sprintf('Authenticating %s.', $user->getDisplayName()));
        // do something.
    }
}

In the above example, the authenticate() method works fine as long as you just pass instances of MyUser. However, if you now also want to pass a different sub-classes of User which does not have a getDisplayName() method, the code will break.

Available Fixes

  1. Change the type-hint for the parameter:

    class AuthSystem
    {
        public function authenticate(MyUser $user) { /* ... */ }
    }
    
  2. Add an additional type-check:

    class AuthSystem
    {
        public function authenticate(User $user)
        {
            if ($user instanceof MyUser) {
                $this->logger->info(/** ... */);
            }
    
            // or alternatively
            if ( ! $user instanceof MyUser) {
                throw new \LogicException(
                    '$user must be an instance of MyUser, '
                   .'other instances are not supported.'
                );
            }
    
        }
    }
    
Note: PHP Analyzer uses reverse abstract interpretation to narrow down the types inside the if block in such a case.
  1. Add the method to the parent class:

    abstract class User
    {
        /** @return string */
        abstract public function getPassword();
    
        /** @return string */
        abstract public function getDisplayName();
    }
    
Loading history...
174
                ->beginCommand('post')
175
                    ->setDescription('Manage posts')
176
                    ->beginSubCommand('create')
177
                        ->setClass(CreatePostCommand::class)
178
                        ->setDescription('Create a new post')
179
                    ->end()
180
                    ->beginSubCommand('change')
181
                        ->setClass(ChangePostTitleCommand::class)
182
                        ->setDescription('Change the post title')
183
                    ->end()
184
                ->end()
185
                ->beginCommand('help')
186
                    ->markDefault()
187
                    ->addArgument('command', Argument::OPTIONAL, 'The command name')
188
                    ->setHandler(function () {
189
                        return new HelpHandler();
190
                    })
191
                ->end()
192
            ;
193
        };
194
195
        $this
196
            ->given($config = $this->createConfiguration())
197
            ->and($configCallback($config))
198
            ->and($application = $this->createApplication($config))
199
            ->and($args = new ArgvArgs(array('test', 'post')))
200
            ->and($input = new StringInputStream(''))
201
            ->and($output = new BufferedOutputStream())
202
            ->and($errorOutput = new BufferedOutputStream())
203
            ->when($application->run($args, $input, $output, $errorOutput))
204
            ->then()
205
                ->string($output->fetch())
206
                    ->constant('<c1>help</c1>')
207
        ;
208
    }
209
210
    /**
211
     * Test run command without class.
212
     */
213 View Code Duplication
    public function testRunCommandWithoutClass()
0 ignored issues
show
Duplication introduced by
This method seems to be duplicated in your project.

Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation.

You can also find more detailed suggestions in the “Code” section of your repository.

Loading history...
214
    {
215
        $configCallback = function (ApplicationConfig $config) {
216
            $config
0 ignored issues
show
Unused Code introduced by
The call to the method Cubiche\Core\Console\Api...ig\CommandConfig::end() seems un-needed as the method has no side-effects.

PHP Analyzer performs a side-effects analysis of your code. A side-effect is basically anything that might be visible after the scope of the method is left.

Let’s take a look at an example:

class User
{
    private $email;

    public function getEmail()
    {
        return $this->email;
    }

    public function setEmail($email)
    {
        $this->email = $email;
    }
}

If we look at the getEmail() method, we can see that it has no side-effect. Whether you call this method or not, no future calls to other methods are affected by this. As such code as the following is useless:

$user = new User();
$user->getEmail(); // This line could safely be removed as it has no effect.

On the hand, if we look at the setEmail(), this method _has_ side-effects. In the following case, we could not remove the method call:

$user = new User();
$user->setEmail('email@domain'); // This line has a side-effect (it changes an
                                 // instance variable).
Loading history...
217
                ->beginCommand('create-blog')
218
                    ->setDescription('Create a new blog')
219
                    // should set ->setClass()
220
                ->end()
221
            ;
222
        };
223
224
        $this
225
            ->given($config = $this->createConfiguration())
226
            ->and($configCallback($config))
227
            ->and($application = $this->createApplication($config))
228
            ->and($args = new ArgvArgs(array('test', 'create-blog')))
229
            ->and($input = new StringInputStream(''))
230
            ->and($output = new BufferedOutputStream())
231
            ->and($errorOutput = new BufferedOutputStream())
232
            ->then()
233
                ->exception(function () use ($application, $args, $input, $output, $errorOutput) {
234
                    $application->run($args, $input, $output, $errorOutput);
235
                })
236
                ->isInstanceOf(\RuntimeException::class)
237
        ;
238
    }
239
240
    /**
241
     * Test run command without arguments.
242
     */
243 View Code Duplication
    public function testRunCommandWithoutArguments()
0 ignored issues
show
Duplication introduced by
This method seems to be duplicated in your project.

Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation.

You can also find more detailed suggestions in the “Code” section of your repository.

Loading history...
244
    {
245
        $configCallback = function (ApplicationConfig $config) {
246
            $config
0 ignored issues
show
Unused Code introduced by
The call to the method Cubiche\Core\Console\Api...ig\CommandConfig::end() seems un-needed as the method has no side-effects.

PHP Analyzer performs a side-effects analysis of your code. A side-effect is basically anything that might be visible after the scope of the method is left.

Let’s take a look at an example:

class User
{
    private $email;

    public function getEmail()
    {
        return $this->email;
    }

    public function setEmail($email)
    {
        $this->email = $email;
    }
}

If we look at the getEmail() method, we can see that it has no side-effect. Whether you call this method or not, no future calls to other methods are affected by this. As such code as the following is useless:

$user = new User();
$user->getEmail(); // This line could safely be removed as it has no effect.

On the hand, if we look at the setEmail(), this method _has_ side-effects. In the following case, we could not remove the method call:

$user = new User();
$user->setEmail('email@domain'); // This line has a side-effect (it changes an
                                 // instance variable).
Loading history...
247
                ->beginCommand('create-blog')
248
                    ->setDescription('Create a new blog')
249
                    ->setClass(CreateBlogCommand::class)
250
                    // should have ->addArgument('name', Argument::REQUIRED | Argument::STRING, 'The blog name')
0 ignored issues
show
Unused Code Comprehensibility introduced by
42% of this comment could be valid code. Did you maybe forget this after debugging?

Sometimes obsolete code just ends up commented out instead of removed. In this case it is better to remove the code once you have checked you do not need it.

The code might also have been commented out for debugging purposes. In this case it is vital that someone uncomments it again or your project may behave in very unexpected ways in production.

This check looks for comments that seem to be mostly valid code and reports them.

Loading history...
251
                ->end()
252
            ;
253
        };
254
255
        $this
256
            ->given($config = $this->createConfiguration())
257
            ->and($configCallback($config))
258
            ->and($application = $this->createApplication($config))
259
            ->and($args = new ArgvArgs(array('test', 'create-blog')))
260
            ->and($input = new StringInputStream(''))
261
            ->and($output = new BufferedOutputStream())
262
            ->and($errorOutput = new BufferedOutputStream())
263
            ->then()
264
                ->exception(function () use ($application, $args, $input, $output, $errorOutput) {
265
                    $application->run($args, $input, $output, $errorOutput);
266
                })
267
                ->isInstanceOf(\InvalidArgumentException::class)
268
        ;
269
    }
270
271
    /**
272
     * Test run command with default handlers.
273
     */
274
    public function testRunCommandWithDefaultHanlder()
275
    {
276
        $configCallback = function (ApplicationConfig $config) {
277
            $config
0 ignored issues
show
Bug introduced by
The method end does only exist in Webmozart\Console\Api\Config\CommandConfig, but not in Webmozart\Console\Api\Config\ApplicationConfig.

It seems like the method you are trying to call exists only in some of the possible types.

Let’s take a look at an example:

class A
{
    public function foo() { }
}

class B extends A
{
    public function bar() { }
}

/**
 * @param A|B $x
 */
function someFunction($x)
{
    $x->foo(); // This call is fine as the method exists in A and B.
    $x->bar(); // This method only exists in B and might cause an error.
}

Available Fixes

  1. Add an additional type-check:

    /**
     * @param A|B $x
     */
    function someFunction($x)
    {
        $x->foo();
    
        if ($x instanceof B) {
            $x->bar();
        }
    }
    
  2. Only allow a single type to be passed if the variable comes from a parameter:

    function someFunction(B $x) { /** ... */ }
    
Loading history...
278
                ->beginCommand('create-blog')
279
                    ->setDescription('Create a new blog')
280
                    ->setClass(CreateBlogCommand::class)
281
                    ->addArgument('name', Argument::REQUIRED | Argument::STRING, 'The blog name')
282
                ->end()
283
            ;
284
        };
285
286
        $this
287
            ->given($config = $this->createConfiguration())
288
            ->and($configCallback($config))
289
            ->and($application = $this->createApplication($config))
290
            ->and($args = new ArgvArgs(array('test', 'create-blog', 'foo')))
291
            ->and($input = new StringInputStream(''))
292
            ->and($output = new BufferedOutputStream())
293
            ->and($errorOutput = new BufferedOutputStream())
294
            ->when($application->run($args, $input, $output, $errorOutput))
295
            ->then()
296
                ->string($output->fetch())
297
                    ->contains('blog was created')
298
                    ->contains('<c1>blog was created</c1> success')
299
                    ->contains('name')
300
        ;
301
    }
302
303
    /**
304
     * Test run command with custom predispatch handler.
305
     */
306
    public function testRunCommandWithCustomPreDispatchHanlder()
307
    {
308
        $configCallback = function (ApplicationConfig $config) {
309
            $config
310
                ->beginCommand('post')
311
                    ->setDescription('Manage posts')
312
                    ->beginSubCommand('create')
313
                        ->setClass(CreatePostCommand::class)
314
                        ->setDescription('Create a new post')
315
                        ->addArgument('title', Argument::REQUIRED | Argument::STRING, 'The post title')
316
                        ->addArgument('content', Argument::OPTIONAL, 'The post content')
317
                        ->onPreDispatchEvent(function (EventInterface $event, IO $io) {
318
                            $io->writeLine('on pre dispatch');
319
                        })
320
                    ->end()
321
                    ->beginSubCommand('change')
322
                        ->setClass(ChangePostTitleCommand::class)
323
                        ->setDescription('Change the post title')
324
                        ->addArgument('title', Argument::REQUIRED | Argument::STRING, 'The new post title')
325
                        ->onPostDispatchEvent(function (EventInterface $event, IO $io) {
326
                            $io->writeLine('on post dispatch');
327
                        })
328
                    ->end()
329
                ->end()
330
            ;
331
        };
332
333
        $this
334
            ->given($config = $this->createConfiguration())
335
            ->and($configCallback($config))
336
            ->and($application = $this->createApplication($config))
337
            ->and($args = new ArgvArgs(array('test', 'post', 'create', 'foo', 'bar')))
338
            ->and($input = new StringInputStream(''))
339
            ->and($output = new BufferedOutputStream())
340
            ->and($errorOutput = new BufferedOutputStream())
341
            ->when($application->run($args, $input, $output, $errorOutput))
342
            ->then()
343
                ->string($output->fetch())
344
                    ->contains('on pre dispatch')
345
                    ->contains('<c1>post was created</c1> success')
346
        ;
347
348
        $this
349
            ->given($config = $this->createConfiguration())
350
            ->and($configCallback($config))
351
            ->and($application = $this->createApplication($config))
352
            ->and($args = new ArgvArgs(array('test', 'post', 'change', 'baz')))
353
            ->and($input = new StringInputStream(''))
354
            ->and($output = new BufferedOutputStream())
355
            ->and($errorOutput = new BufferedOutputStream())
356
            ->when($application->run($args, $input, $output, $errorOutput))
357
            ->then()
358
                ->string($output->fetch())
359
                    ->contains('post title was changed')
360
                    ->contains('on post dispatch')
361
                    ->contains('title')
362
        ;
363
    }
364
}
365