centos7 scl rh-php72 phalcon-v3.4.x build, make test fails? How to run the tests?

[@test2 64bits]$ pwd
/home/software/phalcon-v3.4.x/build/php7/64bits

[@test2 64bits]$ make test

Build complete.
Don't forget to run 'make test'.

PHP Warning:  PHP Startup: Unable to load dynamic library 'phalcon.so' (tried: /home/software/phalcon-v3.4.x/build/php7/64bits/modules/phalcon.so (/home/software/phalcon-v3.4.x/build/php7/64bits/modules/phalcon.so: undefined symbol: php_json_decode_ex), /home/software/phalcon-v3.4.x/build/php7/64bits/modules/phalcon.so.so (/home/software/phalcon-v3.4.x/build/php7/64bits/modules/phalcon.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0
PHP Warning:  PHP Startup: Unable to load dynamic library 'phalcon.so' (tried: /home/software/phalcon-v3.4.x/build/php7/64bits/modules/phalcon.so (/home/software/phalcon-v3.4.x/build/php7/64bits/modules/phalcon.so: undefined symbol: php_json_decode_ex), /home/software/phalcon-v3.4.x/build/php7/64bits/modules/phalcon.so.so (/home/software/phalcon-v3.4.x/build/php7/64bits/modules/phalcon.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0

=====================================================================
PHP         : /opt/rh/rh-php72/root/usr/bin/php
Warning: PHP Startup: Unable to load dynamic library 'phalcon.so' (tried: /home/software/phalcon-v3.4.x/build/php7/64bits/modules/phalcon.so (/home/software/phalcon-v3.4.x/build/php7/64bits/modules/phalcon.so: undefined symbol: php_json_decode_ex), /home/software/phalcon-v3.4.x/build/php7/64bits/modules/phalcon.so.so (/home/software/phalcon-v3.4.x/build/php7/64bits/modules/phalcon.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0

PHP_SAPI    : cli
PHP_VERSION : 7.2.10
ZEND_VERSION: 3.2.0
PHP_OS      : Linux - Linux test2 3.10.0-957.5.1.el7.x86_64 #1 SMP Fri Feb 1 14:54:57 UTC 2019 x86_64
INI actual  : /home/software/phalcon-v3.4.x/build/php7/64bits/tmp-php.ini
More .INIs  :
CWD         : /home/software/phalcon-v3.4.x/build/php7/64bits
Extra dirs  :
VALGRIND    : Not used
=====================================================================
TIME START 2019-04-30 17:40:17
=====================================================================
No tests were run.
[@test2 64bits]$ php run-tests.php -P

=====================================================================
PHP         : /opt/rh/rh-php72/root/usr/bin/php
PHP_SAPI    : cli
PHP_VERSION : 7.2.10
ZEND_VERSION: 3.2.0
PHP_OS      : Linux - Linux test2 3.10.0-957.5.1.el7.x86_64 #1 SMP Fri Feb 1 14:54:57 UTC 2019 x86_64
INI actual  : /etc/opt/rh/rh-php72/php.ini
More .INIs  : /etc/opt/rh/rh-php72/php.d/20-bz2.ini,/etc/opt/rh/rh-php72/php.d/20-calendar.ini,/etc/opt/rh/rh-php72/php.d/20-ctype.ini,/etc/opt/rh/rh-php72/php.d/20-curl.ini,/etc/opt/rh/rh-php72/php.d/20-dom.ini,/etc/opt/rh/rh-php72/php.d/20-exif.ini,/etc/opt/rh/rh-php72/php.d/20-fileinfo.ini,/etc/opt/rh/rh-php72/php.d/20-ftp.ini,/etc/opt/rh/rh-php72/php.d/20-gd.ini,/etc/opt/rh/rh-php72/php.d/20-gettext.ini,/etc/opt/rh/rh-php72/php.d/20-iconv.ini,/etc/opt/rh/rh-php72/php.d/20-json.ini,/etc/opt/rh/rh-php72/php.d/20-mbstring.ini,/etc/opt/rh/rh-php72/php.d/20-mysqlnd.ini,/etc/opt/rh/rh-php72/php.d/20-pdo.ini,/etc/opt/rh/rh-php72/php.d/20-pgsql.ini,/etc/opt/rh/rh-php72/php.d/20-phar.ini,/etc/opt/rh/rh-php72/php.d/20-posix.ini,/etc/opt/rh/rh-php72/php.d/20-shmop.ini,/etc/opt/rh/rh-php72/php.d/20-simplexml.ini,/etc/opt/rh/rh-php72/php.d/20-soap.ini,/etc/opt/rh/rh-php72/php.d/20-sockets.ini,/etc/opt/rh/rh-php72/php.d/20-sqlite3.ini,/etc/opt/rh/rh-php72/php.d/20-sysvmsg.ini,/etc/opt/rh/rh-php72/php.d/20-sysvsem.ini,/etc/opt/rh/rh-php72/php.d/20-sysvshm.ini,/etc/opt/rh/rh-php72/php.d/20-tokenizer.ini,/etc/opt/rh/rh-php72/php.d/20-xml.ini,/etc/opt/rh/rh-php72/php.d/20-xmlwriter.ini,/etc/opt/rh/rh-php72/php.d/20-xsl.ini,/etc/opt/rh/rh-php72/php.d/20-zip.ini,/etc/opt/rh/rh-php72/php.d/30-mysqli.ini,/etc/opt/rh/rh-php72/php.d/30-pdo_mysql.ini,/etc/opt/rh/rh-php72/php.d/30-pdo_pgsql.ini,/etc/opt/rh/rh-php72/php.d/30-pdo_sqlite.ini,/etc/opt/rh/rh-php72/php.d/30-wddx.ini,/etc/opt/rh/rh-php72/php.d/30-xmlreader.ini,/etc/opt/rh/rh-php72/php.d/40-phalcon.ini
CWD         : /home/software/phalcon-v3.4.x/build/php7/64bits
Extra dirs  :
VALGRIND    : Not used
=====================================================================
TIME START 2019-04-30 17:40:05
=====================================================================
No tests were run.
edited May '19

Don't forget to run 'make test'.

It's not a Phalcon's message. It's a standard message generated by PHP. If you want to run tests you have to prepare environment and satisfy dependencies. For more see: