OpenBMC Webserver Testing

This doc describes what type of functional testing, which contributors should perform before requesting code reviews, and tips for each type. Contributors should add types of testing they performed and their results as "Tested" footers in commit messages.

General Methodology

There are a variety of ways to develop and test bmcweb software changes. Here are the steps for using the SDK and QEMU.

  • Follow all development environment setup directions in the development environment setup document. This will get QEMU started up and you in the SDK environment.

  • Follow all of the gerrit setup directions in the gerrit setup document.

  • Clone bmcweb from gerrit

    git clone ssh://openbmc.gerrit/openbmc/bmcweb/
    
  • Follow directions in README.md to compile

  • Reduce binary size by stripping it when ready for testing

    arm-openbmc-linux-gnueabi-strip bmcweb
    

    Note: Stripping is not required and having the debug symbols could be useful depending on your testing. Leaving them will drastically increase your transfer time to the BMC.

  • Copy your bmcweb you want to test to /tmp/ in QEMU

    scp -P 2222 bmcweb root@127.0.0.1:/tmp/
    

    Special Notes: The address and port shown here (127.0.0.1 and 2222) reaches the QEMU session you set up in your development environment as described above.

  • Stop bmcweb service within your QEMU session

    systemctl stop bmcweb
    

    Note: bmcweb supports being started directly in parallel with the bmcweb running as a service. The standalone bmcweb will be available on port 18080. An advantage of this is you can compare between the two easily for testing. In QEMU you would need to open up port 18080 when starting QEMU. Your curl commands would need to use 18080 to communicate.

  • If running within a system that has read-only /usr/ filesystem, issue the following commands one time per QEMU boot to make the filesystem writable

    mkdir -p /var/persist/usr
    mkdir -p /var/persist/work/usr
    mount -t overlay -o lowerdir=/usr,upperdir=/var/persist/usr,workdir=/var/persist/work/usr overlay /usr
    
  • Remove the existing bmcweb from the filesystem in QEMU

    rm /usr/bin/bmcweb
    
  • Link to your new bmcweb in /tmp/

    ln -sf /tmp/bmcweb /usr/bin/bmcweb
    
  • Test your changes. bmcweb will be started automatically upon your first REST or Redfish command

    curl -c cjar -b cjar -k -H "Content-Type: application/json" -X POST https://127.0.0.1:2443/login -d "{\"data\": [ \"root\", \"0penBmc\" ] }"
    curl -c cjar -b cjar -k -X GET https://127.0.0.1:2443/xyz/openbmc_project/state/bmc0
    
  • Stop the bmcweb service and scp new file over to /tmp/ each time you want to retest a change.

    See the REST and Redfish cheatsheets for valid commands.

Types of Changes to Run

A committer should run tests that exercise all paths changed in the patchset. If making changes to the http core, that are expected to effect all types of routes, testing one route of each class (websocket, HTTP get, HTTP post) is required.

Typical Types of Changes

Basic Redfish Robot Test on QEMU

Run the upstream Robot QEMU test. This test is performed automatically when bumping SRCREV. Ensuring this test passing makes your CL less likely to be rolled back while bumping SRCREV of bmcweb.

Websocket

Turn on the rest meson option which provides a websocket route.

# run the websocket testing script and verify results
$ python scripts/websocket_test.py  --host 1.2.3.4:443 --ssl

Redfish Validator

Committers are required to run the Redfish Validator anytime they make a change to the GET behavior of the redfish tree. The test must run on real hardware since the resource tree will be more complete.

$ git clone https://github.com/DMTF/Redfish-Service-Validator.git

# run validator and inspect the report for failures
$ python3 RedfishServiceValidator.py \
  --auth Session -i https://1.2.3.4:443 \
  -u root -p 0penBmc

Your change should not introduce any new validator errors. Please include something to the effect of "Redfish service validator passing" in your commit message.

Error Status

Test error status for your newly added resources or core codes, e.g., 4xx client errors, 5xx server errors.