PerformanceContext::javascriptFilesShouldLoadAsync() - Code Metrics - Inspection of "Remove PHPUnit dependency" - marcortola/behat-seo-contexts - Measure and Improve Code Quality continuously with Scrutinizer

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Push — master ( b42680...426658 )

by Marc

created 2019-08-18 19:02 UTC

javascriptFilesShouldLoadAsync() A

↳ Parent: PerformanceContext

Complexity

Conditions	3
Paths	2

Size

Total Lines	9
Code Lines	7

Duplication

Lines	0
Ratio	0 %

Importance

Changes

Metric	Value
cc	3
eloc	7
nc	2
nop	0
dl	0
loc	9
rs	10
c	0
b	0
f	0

<?php declare(strict_types=1);

namespace MOrtola\BehatSEOContexts\Context;

use Behat\Mink\Element\NodeElement;
use Behat\Mink\Exception\UnsupportedDriverActionException;
use Behat\Symfony2Extension\Driver\KernelDriver;
use InvalidArgumentException;
use Webmozart\Assert\Assert;

class PerformanceContext extends BaseContext
{
    const RES_EXT = [
        'PNG'             => 'png',
        'HTML'            => 'html',
        'JPEG'            => 'jpeg',
        'GIF'             => 'gif',
        'ICO'             => 'ico',
        'JAVASCRIPT'      => 'js',
        'CSS'             => 'css',
        'CSS_INLINE_HEAD' => 'css-inline-head',
        'CSS_LINK_HEAD'   => 'css-link-head',
    ];

    /**
     * @Then /^Javascript code should load (async|defer)$/
     */
    public function javascriptFilesShouldLoadAsync(): void
    {
        foreach ($this->getSelfHostedPageResources(self::RES_EXT['JAVASCRIPT']) as $scriptElement) {
            Assert::true(
                $scriptElement->hasAttribute('async') || $scriptElement->hasAttribute('defer'),
                sprintf(
                    'Javascript file %s is render blocking in %s',
                    $this->getResourceUrl($scriptElement, self::RES_EXT['JAVASCRIPT']),
                    $this->getCurrentUrl()
                )
            );
        }
    }

    /**
     * @return NodeElement[]
     */
    private function getPageResources(string $resourceType, string $host = null): array
    {
        if (!$xpath = $this->getResourceXpath($resourceType)) {
            return [];
        }

        if ('external' === $host) {
            $xpath = preg_replace(
                '/\[contains\(@(.*),/',
                '[not(starts-with(@$1,"'.$this->webUrl.'") or starts-with(@$1,"/")) and contains(@$1,',
                $xpath
            );
        } elseif (null !== $host) {
            $xpath = preg_replace(
                '/\[contains\(@(.*),/',
                '[(starts-with(@$1,"'.$host.'") or starts-with(@$1,"/")) and contains(@$1,',
                $xpath
            );
        }

        if ($xpath) {
            return $this->getSession()->getPage()->findAll('xpath', $xpath);
        }

        return [];
    }

    /**
     * @return NodeElement[]
     */
    private function getSelfHostedPageResources(string $resourceType): array
    {
        if (!$xpath = $this->getResourceXpath($resourceType)) {
            return [];
        }

        $xpath = preg_replace(
            '/\[contains\(@(.*),/',
            sprintf('[(starts-with(@$1,"%s") or starts-with(@$1,"/")) and contains(@$1,', $this->webUrl),
            $xpath
        );

        if ($xpath) {
            return $this->getSession()->getPage()->findAll('xpath', $xpath);
        }

        return [];
    }

    private function getResourceXpath(string $resourceType): string
    {
        if (in_array($resourceType, [self::RES_EXT['JPEG'], self::RES_EXT['PNG'], self::RES_EXT['GIF']], true)) {
            return sprintf('//img[contains(@src,".%s")]', $resourceType);
        }
        if (in_array($resourceType, [self::RES_EXT['ICO'], self::RES_EXT['CSS']], true)) {
            return sprintf('//link[contains(@href,".%s")]', $resourceType);
        }
        if (self::RES_EXT['JAVASCRIPT'] === $resourceType) {
            return '//script[contains(@src,".js")]';
        }
        if (self::RES_EXT['CSS_INLINE_HEAD'] === $resourceType) {
            return '//head//style';
        }
        if (self::RES_EXT['CSS_LINK_HEAD'] === $resourceType) {
            return '//head//link[contains(@href,".css")]';
        }

        return '';
    }

    private function getResourceUrl(NodeElement $element, string $resourceType): ?string
    {
        $this->assertResourceTypeIsValid($resourceType);

        if (in_array(
            $resourceType,
            [self::RES_EXT['PNG'], self::RES_EXT['JPEG'], self::RES_EXT['GIF'], self::RES_EXT['JAVASCRIPT']],
            true
        )) {
            return $element->getAttribute('src');
        }

        if (in_array($resourceType, [self::RES_EXT['CSS'], self::RES_EXT['ICO']], true)) {
            return $element->getAttribute('href');
        }

        throw new InvalidArgumentException(
            sprintf('%s resource type url is not implemented', $resourceType)
        );
    }

    private function assertResourceTypeIsValid(string $resourceType): void
    {
        if (!in_array($resourceType, self::RES_EXT, true)) {
            throw new InvalidArgumentException(
                sprintf(
                    '%s resource type is not valid. Allowed types are: %s',
                    $resourceType,
                    implode(',', self::RES_EXT)
                )
            );
        }
    }

    /**
     * @Then HTML code should be minified
     */
    public function htmlShouldBeMinified(): void
    {
        $this->assertContentIsMinified(
            $this->getSession()->getPage()->getContent(),
            $this->minimizeHtml($this->getSession()->getPage()->getContent())
        );
    }

    private function assertContentIsMinified(string $content, string $contentMinified): void
    {
        Assert::same(
            $content,
            $contentMinified,
            'Code is not minified.'
        );
    }

    private function minimizeHtml(string $html): string
    {
        return preg_replace('/(?<=>)\s+|\s+(?=<)/', '', $html) ?? $html;
    }

    /**
     * @Then CSS code should load deferred
     */
    public function cssFilesShouldLoadDeferred(): void
    {
        Assert::isEmpty(
            $this->getSelfHostedPageResources(self::RES_EXT['CSS_LINK_HEAD']),
            sprintf(
                'Some self hosted css files are loading in head in %s',
                $this->getCurrentUrl()
            )
        );
    }

    /**
     * @Then critical CSS code should exist in head
     */
    public function criticalCssShouldExistInHead(): void
    {
        Assert::notEmpty(
            $this->getSelfHostedPageResources(self::RES_EXT['CSS_INLINE_HEAD']),
            sprintf(
                'No inline css is loading in head in %s',
                $this->getCurrentUrl()
            )
        );
    }

    /**
     * @Then HTML code should not be minified
     */
    public function htmlShouldNotBeMinified(): void
    {
        $this->assertInverse(
            [$this, 'htmlShouldBeMinified'],
            'HTML should not be minified.'
        );
    }

    /**
     * @Then /^(CSS|Javascript) code should not be minified$/
     */
    public function cssOrJavascriptFilesShouldNotBeMinified(string $resourceType): void
    {
        $this->assertInverse(
            function () use ($resourceType) {
                $this->cssOrJavascriptFilesShouldBeMinified($resourceType);
            },
            sprintf('%s should not be minified.', $resourceType)
        );
    }

    /**
     * @throws UnsupportedDriverActionException
     * @Then /^(CSS|Javascript) code should be minified$/
     */
    public function cssOrJavascriptFilesShouldBeMinified(string $resourceType): void
    {
        $this->doesNotSupportDriver(KernelDriver::class);

        $resourceType = 'Javascript' === $resourceType ? 'js' : 'css';

        foreach ($this->getSelfHostedPageResources($resourceType) as $element) {
            if ($url = $this->getResourceUrl($element, $resourceType)) {
                $this->getSession()->visit($url);
            }

            $this->assertContentIsMinified(
                $this->getSession()->getPage()->getContent(),
                'js' === $resourceType ?
                    $this->minimizeJs($this->getSession()->getPage()->getContent())
                    : $this->minimizeCss($this->getSession()->getPage()->getContent())
            );

            $this->getSession()->back();
        }
    }

    private function minimizeJs(string $javascript): string
    {
        $minimized = preg_replace(
            [
                '#\s*("(?:[^"\\\]++|\\\.)*+"|\'(?:[^\'\\\\]++|\\\.)*+\')\s*|\s*\/\*(?!\!|@cc_on)(?>[\s\S]*?\*\/)\s*|\s*(?<![\:\=])\/\/.*(?=[\n\r]|$)|^\s*|\s*$#',
                '#("(?:[^"\\\]++|\\\.)*+"|\'(?:[^\'\\\\]++|\\\.)*+\'|\/\*(?>.*?\*\/)|\/(?!\/)[^\n\r]*?\/(?=[\s.,;]|[gimuy]|$))|\s*([!%&*\(\)\-=+\[\]\{\}|;:,.<>?\/])\s*#s',
            ],
            ['$1', '$1$2'],
            $javascript
        );

        return $minimized ?? $javascript;
    }

    private function minimizeCss(string $css): string
    {
        $minimized = preg_replace(
            [
                '#("(?:[^"\\\]++|\\\.)*+"|\'(?:[^\'\\\\]++|\\\.)*+\')|\/\*(?!\!)(?>.*?\*\/)|^\s*|\s*$#s',
                '#("(?:[^"\\\]++|\\\.)*+"|\'(?:[^\'\\\\]++|\\\.)*+\'|\/\*(?>.*?\*\/))|\s*+;\s*+(})\s*+|\s*+([*$~^|]?+=|[{};,>~+]|\s*+-(?![0-9\.])|!important\b)\s*+|([[(:])\s++|\s++([])])|\s++(:)\s*+(?!(?>[^{}"\']++|"(?:[^"\\\]++|\\\.)*+"|\'(?:[^\'\\\\]++|\\\.)*+\')*+{)|^\s++|\s++\z|(\s)\s+#si',
            ],
            ['$1', '$1$2$3$4$5$6$7'],
            $css
        );

        return $minimized ?? $css;
    }

    /**
     * @Then critical CSS code should not exist in head
     */
    public function criticalCssShouldNotExistInHead(): void
    {
        $this->assertInverse(
            [$this, 'criticalCssShouldExistInHead'],
            'Critical CSS exist in head.'
        );
    }

    /**
     * @Then /^browser cache should not be enabled for (.+|external|internal) (png|jpeg|gif|ico|js|css) resources$/
     */
    public function browserCacheMustNotBeEnabledForResources(string $host, string $resourceType): void
    {
        $this->assertInverse(
            function () use ($host, $resourceType) {
                $this->browserCacheMustBeEnabledForResources($host, $resourceType);
            },
            sprintf('Browser cache is enabled for %s resources.', $resourceType)
        );
    }

    /**
     * @throws UnsupportedDriverActionException
     * @Then /^browser cache should be enabled for (.+|external|internal) (png|jpeg|gif|ico|js|css) resources$/
     */
    public function browserCacheMustBeEnabledForResources(string $host, string $resourceType): void
    {
        $this->doesNotSupportDriver(KernelDriver::class);

        switch ($host) {
            case 'internal':
                $elements = $this->getSelfHostedPageResources($resourceType);
                break;
            default:
                $elements = $this->getPageResources($resourceType, $host);
                break;
        }

        Assert::notEmpty(
            $elements,
            sprintf(
                'The are not %s resources in %s.',
                $host,
                $this->getCurrentUrl()
            )
        );

        $this->checkResourceCache(
            $elements[array_rand($elements)],
            $resourceType
        );
    }

    private function checkResourceCache(NodeElement $element, string $resourceType): void
    {
        $url = $this->getResourceUrl($element, $resourceType);

        Assert::notNull($url);

        $this->getSession()->visit($url);
        $headers = array_change_key_case($this->getSession()->getResponseHeaders());
        $this->getSession()->back();

        Assert::keyExists(
            $headers,
            'cache-control',
            sprintf(
                'Browser cache is not enabled for %s resources. Cache-Control HTTP header was not received.',
                $resourceType
            )
        );

        Assert::notContains(
            $headers['cache-control'][0],
            'no-cache',
            sprintf(
                'Browser cache is not enabled for %s resources. Cache-Control HTTP header is "no-cache".',
                $resourceType
            )
        );

        Assert::notContains(
            $headers['cache-control'][0],
            'max-age=0',
            sprintf(
                'Browser cache is not enabled for %s resources. Cache-Control HTTP header is "max-age=0".',
                $resourceType
            )
        );
    }

    /**
     * @Then /^Javascript code should not load (async|defer)$/
     */
    public function jsShouldNotLoadAsyncOr(): void
    {
        $this->assertInverse(
            [$this, 'javascriptFilesShouldLoadAsync'],
            'All JS files load async.'
        );
    }
}


1			<?php declare(strict_types=1);
2
3			namespace MOrtola\BehatSEOContexts\Context;
4
5			use Behat\Mink\Element\NodeElement;
6			use Behat\Mink\Exception\UnsupportedDriverActionException;
7			use Behat\Symfony2Extension\Driver\KernelDriver;
8			use InvalidArgumentException;
9			use Webmozart\Assert\Assert;
10
11			class PerformanceContext extends BaseContext
12			{
13			const RES_EXT = [
14			'PNG' => 'png',
15			'HTML' => 'html',
16			'JPEG' => 'jpeg',
17			'GIF' => 'gif',
18			'ICO' => 'ico',
19			'JAVASCRIPT' => 'js',
20			'CSS' => 'css',
21			'CSS_INLINE_HEAD' => 'css-inline-head',
22			'CSS_LINK_HEAD' => 'css-link-head',
23			];
24
25			/**
26			* @Then /^Javascript code should load (async\|defer)$/
27			*/
28			public function javascriptFilesShouldLoadAsync(): void
29			{
30			foreach ($this->getSelfHostedPageResources(self::RES_EXT['JAVASCRIPT']) as $scriptElement) {
31			Assert::true(
32			$scriptElement->hasAttribute('async') \|\| $scriptElement->hasAttribute('defer'),
33			sprintf(
34			'Javascript file %s is render blocking in %s',
35			$this->getResourceUrl($scriptElement, self::RES_EXT['JAVASCRIPT']),
36			$this->getCurrentUrl()
37			)
38			);
39			}
40			}
41
42			/**
43			* @return NodeElement[]
44			*/
45			private function getPageResources(string $resourceType, string $host = null): array
46			{
47			if (!$xpath = $this->getResourceXpath($resourceType)) {
48			return [];
49			}
50
51			if ('external' === $host) {
52			$xpath = preg_replace(
53			'/\[contains\(@(.*),/',
54			'[not(starts-with(@$1,"'.$this->webUrl.'") or starts-with(@$1,"/")) and contains(@$1,',
55			$xpath
56			);
57			} elseif (null !== $host) {
58			$xpath = preg_replace(
59			'/\[contains\(@(.*),/',
60			'[(starts-with(@$1,"'.$host.'") or starts-with(@$1,"/")) and contains(@$1,',
61			$xpath
62			);
63			}
64
65			if ($xpath) {
66			return $this->getSession()->getPage()->findAll('xpath', $xpath);
67			}
68
69			return [];
70			}
71
72			/**
73			* @return NodeElement[]
74			*/
75			private function getSelfHostedPageResources(string $resourceType): array
76			{
77			if (!$xpath = $this->getResourceXpath($resourceType)) {
78			return [];
79			}
80
81			$xpath = preg_replace(
82			'/\[contains\(@(.*),/',
83			sprintf('[(starts-with(@$1,"%s") or starts-with(@$1,"/")) and contains(@$1,', $this->webUrl),
84			$xpath
85			);
86
87			if ($xpath) {
88			return $this->getSession()->getPage()->findAll('xpath', $xpath);
89			}
90
91			return [];
92			}
93
94			private function getResourceXpath(string $resourceType): string
95			{
96			if (in_array($resourceType, [self::RES_EXT['JPEG'], self::RES_EXT['PNG'], self::RES_EXT['GIF']], true)) {
97			return sprintf('//img[contains(@src,".%s")]', $resourceType);
98			}
99			if (in_array($resourceType, [self::RES_EXT['ICO'], self::RES_EXT['CSS']], true)) {
100			return sprintf('//link[contains(@href,".%s")]', $resourceType);
101			}
102			if (self::RES_EXT['JAVASCRIPT'] === $resourceType) {
103			return '//script[contains(@src,".js")]';
104			}
105			if (self::RES_EXT['CSS_INLINE_HEAD'] === $resourceType) {
106			return '//head//style';
107			}
108			if (self::RES_EXT['CSS_LINK_HEAD'] === $resourceType) {
109			return '//head//link[contains(@href,".css")]';
110			}
111
112			return '';
113			}
114
115			private function getResourceUrl(NodeElement $element, string $resourceType): ?string
116			{
117			$this->assertResourceTypeIsValid($resourceType);
118
119			if (in_array(
120			$resourceType,
121			[self::RES_EXT['PNG'], self::RES_EXT['JPEG'], self::RES_EXT['GIF'], self::RES_EXT['JAVASCRIPT']],
122			true
123			)) {
124			return $element->getAttribute('src');
125			}
126
127			if (in_array($resourceType, [self::RES_EXT['CSS'], self::RES_EXT['ICO']], true)) {
128			return $element->getAttribute('href');
129			}
130
131			throw new InvalidArgumentException(
132			sprintf('%s resource type url is not implemented', $resourceType)
133			);
134			}
135
136			private function assertResourceTypeIsValid(string $resourceType): void
137			{
138			if (!in_array($resourceType, self::RES_EXT, true)) {
139			throw new InvalidArgumentException(
140			sprintf(
141			'%s resource type is not valid. Allowed types are: %s',
142			$resourceType,
143			implode(',', self::RES_EXT)
144			)
145			);
146			}
147			}
148
149			/**
150			* @Then HTML code should be minified
151			*/
152			public function htmlShouldBeMinified(): void
153			{
154			$this->assertContentIsMinified(
155			$this->getSession()->getPage()->getContent(),
156			$this->minimizeHtml($this->getSession()->getPage()->getContent())
157			);
158			}
159
160			private function assertContentIsMinified(string $content, string $contentMinified): void
161			{
162			Assert::same(
163			$content,
164			$contentMinified,
165			'Code is not minified.'
166			);
167			}
168
169			private function minimizeHtml(string $html): string
170			{
171			return preg_replace('/(?<=>)\s+\|\s+(?=<)/', '', $html) ?? $html;
172			}
173
174			/**
175			* @Then CSS code should load deferred
176			*/
177			public function cssFilesShouldLoadDeferred(): void
178			{
179			Assert::isEmpty(
180			$this->getSelfHostedPageResources(self::RES_EXT['CSS_LINK_HEAD']),
181			sprintf(
182			'Some self hosted css files are loading in head in %s',
183			$this->getCurrentUrl()
184			)
185			);
186			}
187
188			/**
189			* @Then critical CSS code should exist in head
190			*/
191			public function criticalCssShouldExistInHead(): void
192			{
193			Assert::notEmpty(
194			$this->getSelfHostedPageResources(self::RES_EXT['CSS_INLINE_HEAD']),
195			sprintf(
196			'No inline css is loading in head in %s',
197			$this->getCurrentUrl()
198			)
199			);
200			}
201
202			/**
203			* @Then HTML code should not be minified
204			*/
205			public function htmlShouldNotBeMinified(): void
206			{
207			$this->assertInverse(
208			[$this, 'htmlShouldBeMinified'],
209			'HTML should not be minified.'
210			);
211			}
212
213			/**
214			* @Then /^(CSS\|Javascript) code should not be minified$/
215			*/
216			public function cssOrJavascriptFilesShouldNotBeMinified(string $resourceType): void
217			{
218			$this->assertInverse(
219			function () use ($resourceType) {
220			$this->cssOrJavascriptFilesShouldBeMinified($resourceType);
221			},
222			sprintf('%s should not be minified.', $resourceType)
223			);
224			}
225
226			/**
227			* @throws UnsupportedDriverActionException
228			* @Then /^(CSS\|Javascript) code should be minified$/
229			*/
230			public function cssOrJavascriptFilesShouldBeMinified(string $resourceType): void
231			{
232			$this->doesNotSupportDriver(KernelDriver::class);
233
234			$resourceType = 'Javascript' === $resourceType ? 'js' : 'css';
235
236			foreach ($this->getSelfHostedPageResources($resourceType) as $element) {
237			if ($url = $this->getResourceUrl($element, $resourceType)) {
238			$this->getSession()->visit($url);
239			}
240
241			$this->assertContentIsMinified(
242			$this->getSession()->getPage()->getContent(),
243			'js' === $resourceType ?
244			$this->minimizeJs($this->getSession()->getPage()->getContent())
245			: $this->minimizeCss($this->getSession()->getPage()->getContent())
246			);
247
248			$this->getSession()->back();
249			}
250			}
251
252			private function minimizeJs(string $javascript): string
253			{
254			$minimized = preg_replace(
255			[
256			'#\s("(?:[^"\\\]++\|\\\.)+"\|\'(?:[^\'\\\\]++\|\\\.)+\')\s\|\s\/\(?!\!\|@cc_on)(?>[\s\S]?\\/)\s\|\s(?<![\:\=])\/\/.(?=[\n\r]\|$)\|^\s\|\s*$#',
257			'#("(?:[^"\\\]++\|\\\.)+"\|\'(?:[^\'\\\\]++\|\\\.)+\'\|\/\(?>.?\\/)\|\/(?!\/)[^\n\r]?\/(?=[\s.,;]\|[gimuy]\|$))\|\s([!%&\(\)\-=+\[\]\{\}\|;:,.<>?\/])\s*#s',
258			],
259			['$1', '$1$2'],
260			$javascript
261			);
262
263			return $minimized ?? $javascript;
264			}
265
266			private function minimizeCss(string $css): string
267			{
268			$minimized = preg_replace(
269			[
270			'#("(?:[^"\\\]++\|\\\.)+"\|\'(?:[^\'\\\\]++\|\\\.)+\')\|\/\(?!\!)(?>.?\\/)\|^\s\|\s*$#s',
271			'#("(?:[^"\\\]++\|\\\.)+"\|\'(?:[^\'\\\\]++\|\\\.)+\'\|\/\(?>.?\\/))\|\s+;\s+(})\s+\|\s+([$~^\|]?+=\|[{};,>~+]\|\s+-(?![0-9\.])\|!important\b)\s+\|([[(:])\s++\|\s++([])])\|\s++(:)\s+(?!(?>[^{}"\']++\|"(?:[^"\\\]++\|\\\.)+"\|\'(?:[^\'\\\\]++\|\\\.)+\')+{)\|^\s++\|\s++\z\|(\s)\s+#si',
272			],
273			['$1', '$1$2$3$4$5$6$7'],
274			$css
275			);
276
277			return $minimized ?? $css;
278			}
279
280			/**
281			* @Then critical CSS code should not exist in head
282			*/
283			public function criticalCssShouldNotExistInHead(): void
284			{
285			$this->assertInverse(
286			[$this, 'criticalCssShouldExistInHead'],
287			'Critical CSS exist in head.'
288			);
289			}
290
291			/**
292			* @Then /^browser cache should not be enabled for (.+\|external\|internal) (png\|jpeg\|gif\|ico\|js\|css) resources$/
293			*/
294			public function browserCacheMustNotBeEnabledForResources(string $host, string $resourceType): void
295			{
296			$this->assertInverse(
297			function () use ($host, $resourceType) {
298			$this->browserCacheMustBeEnabledForResources($host, $resourceType);
299			},
300			sprintf('Browser cache is enabled for %s resources.', $resourceType)
301			);
302			}
303
304			/**
305			* @throws UnsupportedDriverActionException
306			* @Then /^browser cache should be enabled for (.+\|external\|internal) (png\|jpeg\|gif\|ico\|js\|css) resources$/
307			*/
308			public function browserCacheMustBeEnabledForResources(string $host, string $resourceType): void
309			{
310			$this->doesNotSupportDriver(KernelDriver::class);
311
312			switch ($host) {
313			case 'internal':
314			$elements = $this->getSelfHostedPageResources($resourceType);
315			break;
316			default:
317			$elements = $this->getPageResources($resourceType, $host);
318			break;
319			}
320
321			Assert::notEmpty(
322			$elements,
323			sprintf(
324			'The are not %s resources in %s.',
325			$host,
326			$this->getCurrentUrl()
327			)
328			);
329
330			$this->checkResourceCache(
331			$elements[array_rand($elements)],
332			$resourceType
333			);
334			}
335
336			private function checkResourceCache(NodeElement $element, string $resourceType): void
337			{
338			$url = $this->getResourceUrl($element, $resourceType);
339
340			Assert::notNull($url);
341
342			$this->getSession()->visit($url);
343			$headers = array_change_key_case($this->getSession()->getResponseHeaders());
344			$this->getSession()->back();
345
346			Assert::keyExists(
347			$headers,
348			'cache-control',
349			sprintf(
350			'Browser cache is not enabled for %s resources. Cache-Control HTTP header was not received.',
351			$resourceType
352			)
353			);
354
355			Assert::notContains(
356			$headers['cache-control'][0],
357			'no-cache',
358			sprintf(
359			'Browser cache is not enabled for %s resources. Cache-Control HTTP header is "no-cache".',
360			$resourceType
361			)
362			);
363
364			Assert::notContains(
365			$headers['cache-control'][0],
366			'max-age=0',
367			sprintf(
368			'Browser cache is not enabled for %s resources. Cache-Control HTTP header is "max-age=0".',
369			$resourceType
370			)
371			);
372			}
373
374			/**
375			* @Then /^Javascript code should not load (async\|defer)$/
376			*/
377			public function jsShouldNotLoadAsyncOr(): void
378			{
379			$this->assertInverse(
380			[$this, 'javascriptFilesShouldLoadAsync'],
381			'All JS files load async.'
382			);
383			}
384			}
385

marcortola / behat-seo-contexts

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javascriptFilesShouldLoadAsync() A

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