User defined reports

canary can write output in a number of formats: JSON, HTML, Markdown, among others (see canary report for additional formats). User defined report formats can be created by returning an instance of canary.CanaryReporter from a _canary.plugins.hookspec.canary_session_reporter() plugin hook. For example, the following will write a custom plain text report.

import os

import canary

@canary.hookimpl
def canary_session_reporter():
    return TxtReporter()


class TxtReporter(canary.CanaryReporter)
    type = "txt"
    description = "Create a plain text report"

 def create(self, output: str | None = None) -> None:
     """Create a plain text output

     """
     output = output or "canary-report.txt"
     workspace = canary.Workspace.load()
     with open(output, "w") as fh:
         for case in workspace.active_testcases():
             fh.write("====\n")
             fh.write(f"Name: {case.spec.name}\n")
             fh.write(f"Start: {case.timekeeper.started_on}\n")
             fh.write(f"Finish: {case.timekeeper.finished_on}\n")
             fh.write(f"Status: {case.status.name}\n")

$ canary report txt -h
usage: canary report txt [-h]  ...

positional arguments:

   create    Create plain text report

options:
   -h, --help  show this help message and exit
$ canary report txt create -h
usage: canary report txt create [-h] [-o O]

options:
   -h, --help  show this help message and exit
   -o O        Output file name [default: ./output.txt]