1
|
|
|
<?php |
2
|
|
|
/** |
3
|
|
|
* Trait to cache HTTP requests for unit tests. |
4
|
|
|
* |
5
|
|
|
* @package automattic/jetpack |
6
|
|
|
*/ |
7
|
|
|
|
8
|
|
|
namespace Automattic\Jetpack\Tests; |
9
|
|
|
|
10
|
|
|
use ReflectionClass; |
11
|
|
|
use Requests_Utility_CaseInsensitiveDictionary; |
12
|
|
|
use UnexpectedValueException; |
13
|
|
|
|
14
|
|
|
/** |
15
|
|
|
* Trait to cache HTTP requests for unit tests. |
16
|
|
|
* |
17
|
|
|
* The trait can be used in two ways. By default, it reads the cache file. |
18
|
|
|
* If you create a static property `$update_cache` set to true, it will instead |
19
|
|
|
* write to the cache file. |
20
|
|
|
*/ |
21
|
|
|
trait HttpRequestCacheTrait { |
22
|
|
|
|
23
|
|
|
/** |
24
|
|
|
* Cache array. |
25
|
|
|
* |
26
|
|
|
* @var array |
27
|
|
|
*/ |
28
|
|
|
protected static $request_cache = array(); |
29
|
|
|
|
30
|
|
|
/** |
31
|
|
|
* Args for WP_Http::request that we care about. |
32
|
|
|
* |
33
|
|
|
* @var array |
34
|
|
|
*/ |
35
|
|
|
protected static $request_args = array( 'method', 'body' ); |
36
|
|
|
|
37
|
|
|
/** |
38
|
|
|
* Determine the cache filename. |
39
|
|
|
* |
40
|
|
|
* @return string |
41
|
|
|
*/ |
42
|
|
|
private static function get_http_request_cache_filename() { |
43
|
|
|
$rc = new ReflectionClass( static::class ); |
44
|
|
|
$filename = $rc->getFileName(); |
45
|
|
|
if ( substr( $filename, -4 ) === '.php' ) { |
46
|
|
|
$filename = substr( $filename, 0, -4 ); |
47
|
|
|
} |
48
|
|
|
return $filename . '-HttpRequestCache.json'; |
49
|
|
|
} |
50
|
|
|
|
51
|
|
|
/** |
52
|
|
|
* Set up the test class. |
53
|
|
|
* |
54
|
|
|
* @beforeClass |
55
|
|
|
*/ |
56
|
|
|
public static function setup_http_request_cache_before_class() { |
57
|
|
|
if ( empty( static::$update_cache ) ) { |
58
|
|
|
$filename = self::get_http_request_cache_filename(); |
59
|
|
|
if ( file_exists( $filename ) ) { |
60
|
|
|
// phpcs:ignore WordPress.WP.AlternativeFunctions.file_get_contents_file_get_contents |
61
|
|
|
static::$request_cache = (array) json_decode( file_get_contents( $filename ), true ); |
62
|
|
|
} |
63
|
|
|
} |
64
|
|
|
} |
65
|
|
|
|
66
|
|
|
/** |
67
|
|
|
* Tear down the test class. |
68
|
|
|
* |
69
|
|
|
* @afterClass |
70
|
|
|
*/ |
71
|
|
|
public static function teardown_http_request_cache_after_class() { |
72
|
|
|
if ( ! empty( static::$update_cache ) ) { |
73
|
|
|
$filename = self::get_http_request_cache_filename(); |
74
|
|
|
if ( array() !== static::$request_cache ) { |
75
|
|
|
// phpcs:ignore WordPress.WP.AlternativeFunctions.file_system_read_file_put_contents |
76
|
|
|
file_put_contents( |
77
|
|
|
$filename, |
78
|
|
|
// phpcs:ignore WordPress.WP.AlternativeFunctions.json_encode_json_encode |
79
|
|
|
json_encode( static::$request_cache, JSON_PRETTY_PRINT | JSON_UNESCAPED_SLASHES | JSON_UNESCAPED_UNICODE ) |
80
|
|
|
); |
81
|
|
|
} elseif ( file_exists( $filename ) ) { |
82
|
|
|
unlink( $filename ); |
83
|
|
|
} |
84
|
|
|
} |
85
|
|
|
} |
86
|
|
|
|
87
|
|
|
/** |
88
|
|
|
* Set up the test. |
89
|
|
|
* |
90
|
|
|
* @before |
91
|
|
|
*/ |
92
|
|
|
public function setup_http_request_cache() { |
93
|
|
|
// This gets called before WP_UnitTestCase_Base::setUp(), so make sure the hooks are saved before we start adding some |
94
|
|
|
// so they'll get removed correctly by WP_UnitTestCase_Base::tearDown(). |
95
|
|
|
if ( ! self::$hooks_saved ) { |
96
|
|
|
$this->_backup_hooks(); |
|
|
|
|
97
|
|
|
} |
98
|
|
|
|
99
|
|
|
$request_args = array_flip( static::$request_args ); |
100
|
|
|
if ( empty( static::$update_cache ) ) { |
101
|
|
|
add_filter( |
102
|
|
|
'pre_http_request', |
103
|
|
|
function ( $preempt, $parsed_args, $url ) use ( $request_args ) { |
104
|
|
|
if ( $preempt ) { |
105
|
|
|
// Something else already overrode it. |
106
|
|
|
return $preempt; |
107
|
|
|
} |
108
|
|
|
if ( ! isset( static::$request_cache[ $url ] ) ) { |
109
|
|
|
throw new UnexpectedValueException( "No cache for $url" ); |
110
|
|
|
} |
111
|
|
|
$args = array_intersect_key( $parsed_args, $request_args ); |
112
|
|
|
ksort( $args ); |
113
|
|
|
foreach ( static::$request_cache[ $url ] as $data ) { |
114
|
|
|
if ( $data['args'] === $args ) { |
115
|
|
|
$ret = $data['response']; |
116
|
|
|
if ( is_string( $ret ) ) { |
117
|
|
|
// phpcs:ignore WordPress.PHP.DiscouragedPHPFunctions.serialize_unserialize |
118
|
|
|
$ret = unserialize( $ret ); |
119
|
|
|
} elseif ( is_array( $ret ) && isset( $ret['headers'] ) ) { |
120
|
|
|
$headers = new Requests_Utility_CaseInsensitiveDictionary(); |
121
|
|
|
foreach ( $ret['headers'] as $k => $v ) { |
122
|
|
|
$headers[ $k ] = $v; |
123
|
|
|
} |
124
|
|
|
$ret['headers'] = $headers; |
125
|
|
|
} |
126
|
|
|
return $ret; |
127
|
|
|
} |
128
|
|
|
} |
129
|
|
|
// phpcs:ignore WordPress.PHP.DevelopmentFunctions.error_log_var_export |
130
|
|
|
throw new UnexpectedValueException( "No cache for $url with the specified arguments\n" . var_export( $args, 1 ) ); |
131
|
|
|
}, |
132
|
|
|
90, |
133
|
|
|
3 |
134
|
|
|
); |
135
|
|
|
} else { |
136
|
|
|
add_action( |
137
|
|
|
'http_api_debug', |
138
|
|
|
function ( $response, $context, $class, $parsed_args, $url ) use ( $request_args ) { |
139
|
|
|
$args = array_intersect_key( $parsed_args, $request_args ); |
140
|
|
|
ksort( $args ); |
141
|
|
|
|
142
|
|
|
if ( is_object( $response ) ) { |
143
|
|
|
// Probably a WP_Error. |
144
|
|
|
// phpcs:ignore WordPress.PHP.DiscouragedPHPFunctions.serialize_serialize |
145
|
|
|
$response = serialize( $response ); |
146
|
|
|
} elseif ( is_array( $response ) ) { |
147
|
|
|
// We probably don't care about most of these fields. If it turns out you do, comment |
148
|
|
|
// out the appropriate lines temporarily (or just add them back to the json manually). |
149
|
|
|
$response['headers'] = iterator_to_array( $response['headers'] ); |
150
|
|
|
unset( $response['http_response'] ); |
151
|
|
|
unset( $response['cookies'] ); |
152
|
|
|
unset( $response['headers'] ); |
153
|
|
|
unset( $response['filename'] ); |
154
|
|
|
} |
155
|
|
|
|
156
|
|
|
if ( isset( static::$request_cache[ $url ] ) ) { |
157
|
|
|
foreach ( static::$request_cache[ $url ] as $data ) { |
158
|
|
|
if ( $data['args'] === $args ) { |
159
|
|
|
// Duplicate. Hope the response is functionally the same. |
160
|
|
|
return; |
161
|
|
|
} |
162
|
|
|
} |
163
|
|
|
} |
164
|
|
|
static::$request_cache[ $url ][] = array( |
165
|
|
|
'args' => $args, |
166
|
|
|
'response' => $response, |
167
|
|
|
); |
168
|
|
|
}, |
169
|
|
|
10, |
170
|
|
|
5 |
171
|
|
|
); |
172
|
|
|
} |
173
|
|
|
} |
174
|
|
|
|
175
|
|
|
/** |
176
|
|
|
* Fail tests if `$update_cache` is set. |
177
|
|
|
*/ |
178
|
|
|
public function test_update_cache_setting() { |
179
|
|
|
$this->assertTrue( empty( static::$update_cache ), __CLASS__ . '::$update_cache cannot be set for tests to pass' ); |
|
|
|
|
180
|
|
|
} |
181
|
|
|
} |
182
|
|
|
|
This check looks for methods that are used by a trait but not required by it.
To illustrate, let’s look at the following code example
The trait
Idable
provides a methodequalsId
that in turn relies on the methodgetId()
. If this method does not exist on a class mixing in this trait, the method will fail.Adding the
getId()
as an abstract method to the trait will make sure it is available.