running a phpUnit test within a docker container - docker

Question

i want to run a specific version of phpUnit WITHIN a docker container. This container will use a specific version of php. i.e
php:5.6-apache
Its a Laravel application. i have install phpunit via composer on the hostfiles and then used the volume command to transfer this to the container.
my composer.json file has following entry:
"require-dev": {
"phpunit/phpunit": "^5.0"
},
This is my docker run command to run the test on my testdev container:
docker run --rm -it -v ~/Users/mow/Documents/devFolder/testdev:/app testdev_php "php ./vendor/bin/phpunit"
This returns the error:
exec: fatal: unable to exec php ./vendor/bin/phpunit: No such file or directory
i am unclear why it says this because te vendor directory is at the root of my site directory.
this is my dockerfile
FROM php:5.6-apache
ENV S6_OVERLAY_VERSION 1.11.0.1
RUN apt-get update && apt-get install -y \
libldap2-dev \
git \
--no-install-recommends \
&& rm -r /var/lib/apt/lists/* \
&& docker-php-ext-configure ldap --with-libdir=lib/x86_64-linux-gnu/ \
&& docker-php-ext-install ldap \
&& docker-php-ext-install mysqli pdo pdo_mysql
#install xdebug
RUN git clone https://github.com/xdebug/xdebug.git \
&& cd xdebug \
&& git checkout tags/XDEBUG_2_5_5 \
&& phpize \
&& ./configure --enable-xdebug \
&& make \
&& make install
RUN a2enmod rewrite
COPY ./docker/rootfs /
COPY . /app
WORKDIR /app
ENTRYPOINT ["/init"]
I guess the real question is this: what is the correct way to run a phpUnit test within a docker container so that its subject to the php version within that container.

Answer 1

In the Entrypoint, you need to ran composer install to install the requisite packages that will be available in the docker container

Answer 2

without Dockerfile use this code in windows PowerShell :
docker run --rm -v ${pwd}:/app composer:latest require --dev phpunit/phpunit:^8
create composer container to install phpunit then remove the container.
note: in windows Command %cd% / in windows PowerShell ${pwd} / in linux $PWD
then Create new PHP container with copy all fills include phpuint feamework
docker run -d -p 80:80 --name my-php-apache -v ${pwd}:/var/www/html php:7.4.0-apache
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