我正在跟踪plugin test setup/install instructions。我运行了wp scaffold plugin-tests my-plugin。但是在下一步，当我尝试运行bash bin/install-wp-tests.sh wordpress_test root '' localhost latest时，我得到了以下错误：

mysqladmin: connect to server at 'localhost' failed
error: 'Can't connect to MySQL server on 'localhost' (61)'
Check that mysqld is running on localhost and that the port is 3306.
You can check this by doing 'telnet localhost 3306'

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我的本地Wordpress网站正在运行MAMP（它正在工作）。我不确定这是否与安装脚本相关，因为我认为它正在创建一个临时DB来运行测试.如果它使用内置的OSX mysql或MAMP的MySQL，这有关系吗？
下面是wp --info的输出

$ ./vendor/wp-cli/wp-cli/bin/wp --info
PHP binary: /Applications/MAMP/bin/php/php5.6.10/bin/php
PHP version:    5.6.10
php.ini used:   /Applications/MAMP/bin/php/php5.6.10/conf/php.ini
WP-CLI root dir:    /Applications/MAMP/htdocs/pipeline/wp-content/plugins/wp-github-pipeline/vendor/wp-cli/wp-cli
WP-CLI global config:   
WP-CLI project config:  
WP-CLI version: 0.19.2

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更新2我发现原来MySQL没有安装.这就是为什么我无法连接！但现在它是。我运行安装脚本，这工作.

$ ./vendor/wp-cli/wp-cli/bin/wp db tables
wp_users
wp_usermeta
wp_posts
wp_comments
wp_links
wp_options
wp_postmeta
wp_terms
wp_term_taxonomy
wp_term_relationships
wp_commentmeta

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但是当我运行phpunit时，我得到了这个：

$ phpunit
PHP Warning:  mysqli_real_connect(): (HY000/2002): No such file or directory in /private/tmp/wordpress/wp-includes/wp-db.php on line 1452
PHP Stack trace:
PHP   1. {main}() /private/tmp/wordpress-tests-lib/includes/install.php:0
PHP   2. require_once() /private/tmp/wordpress-tests-lib/includes/install.php:21
PHP   3. require_wp_db() /private/tmp/wordpress/wp-settings.php:79
PHP   4. wpdb->__construct() /private/tmp/wordpress/wp-includes/load.php:350
PHP   5. wpdb->db_connect() /private/tmp/wordpress/wp-includes/wp-db.php:649
PHP   6. mysqli_real_connect() /private/tmp/wordpress/wp-includes/wp-db.php:1452

Warning: mysqli_real_connect(): (HY000/2002): No such file or directory in /private/tmp/wordpress/wp-includes/wp-db.php on line 1452

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我的部分问题是，我不清楚wp-PHP是否应该完全运行在原生（原生）PHP/Mysql上，或者MAMP的PHP/Mysql上，或者两者的某种组合。

更新4我很确定最后一个问题是phpunit需要安装在MAMP中，但我正在从OSX运行它。

$which phpunit
/usr/bin/phpunit

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在this gist中提到。

更新6

结果你不能再用pear安装phpunit了，所以我把它作为composer依赖添加到require-dev下，但是当我运行那个版本的时候，我得到了同样的错误！

$ ./vendor/phpunit/phpunit/phpunit
PHP Warning:  mysqli_real_connect(): (HY000/1045): Access denied for user 'root'@'localhost' (using password: NO) in /private/tmp/wordpress/wp-includes/wp-db.php on line 1452
PHP Stack trace:
PHP   1. {main}() /private/tmp/wordpress-tests-lib/includes/install.php:0
PHP   2. require_once() /private/tmp/wordpress-tests-lib/includes/install.php:21
PHP   3. require_wp_db() /private/tmp/wordpress/wp-settings.php:79
PHP   4. wpdb->__construct() /private/tmp/wordpress/wp-includes/load.php:350
PHP   5. wpdb->db_connect() /private/tmp/wordpress/wp-includes/wp-db.php:649
PHP   6. mysqli_real_connect() /private/tmp/wordpress/wp-includes/wp-db.php:1452

Warning: mysqli_real_connect(): (HY000/1045): Access denied for user 'root'@'localhost' (using password: NO) in /private/tmp/wordpress/wp-includes/wp-db.php on line 1452

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我甚至把它加到我的路径上以确保...

$ which phpunit
/Applications/MAMP/htdocs/pipeline/wp-content/plugins/wp-github-pipeline/vendor/phpunit/phpunit/phpunit

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更新7

在阅读this博客文章底部的评论后，我看到安装脚本引用了mysqladmin的OSX版本。我不确定这是否重要，但我在路径中添加了MAMPs版本，并重新运行安装脚本。无论如何，它似乎都会在/tmp/中安装WordPress文件。当我运行phpunit时也会出现同样的错误