we have a Windows Electron application that runs e2e Tests via Spectron. The application is platform-dependent and won't run on Linux (Containers). We want to run our Spectron e2e Tests inside a preconfigured Docker container to have them isolated. To get a grasp of it I have built a minimal nodejs application that does basically nothing and has an e2e test (jest) that opens a browser tab and checks the title, no functionality just a simple spike.
I created a Dockerfile to build a container to run the tests:
FROM mcr.microsoft.com/windows:20H2-amd64
RUN mkdir "C:/app"
WORKDIR "C:/app"
COPY app "C:/app"
RUN powershell -Command \
Set-ExecutionPolicy unrestricted;
ENV chocolateyUseWindowsCompression false
RUN powershell -Command \
iex ((new-object net.webclient).DownloadString('https://chocolatey.org/install.ps1'));
RUN choco install googlechrome -y --version=91.0.4472.101 --ignore-checksums
RUN choco install chromedriver -y --version=91.0.4472.1010 --ignore-checksums
RUN choco install nodejs-lts -y --version=14.17.1
RUN npm config set strict-ssl false
RUN npm install
ENTRYPOINT npm test
Note this is a Windows container, as our main app will also need a Windows container to run. The container builds and runs the test but crashes with the error: SessionNotCreatedError: session not created
thrown by from tab crashed
. On my Windows Host, the test runs fine.
Is there anything wrong with my Dockerfile or is this simply not possible in a Windows container?
I don't think it's relevant to the problem but here is also the test file that gets executed when the container does npm test
:
describe('test google.com', () => {
const {
Builder,
By,
Key,
until
} = require('selenium-webdriver');
var driver;
beforeEach(() => {
driver = new Builder()
.forBrowser('chrome')
.build();
});
afterEach(() => {
driver.quit();
});
it('should open google search', async () => {
await driver.get('http://www.google.com');
driver
.getTitle()
.then(title => {
expect(title).toEqual('Google');
});
});
});
We had a similar problem, but we are using .net-core with Selenium. For some reason, installing the Chromedriver did not work inside container, so we had to do two things:
Take look at my repo: https://github.com/yamac-kurtulus/Windows-Docker-Images/tree/master/DotnetCore%20Selenium%20With%20Chrome The relevant part is after line 23 in the Dockerfile.
Note: If you are not very deep into the project, I strongly suggest you to migrate to Linux. Working with Docker on Windows is like a nightmare that you cannot wake up from.
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