A simple Deno tool which parses the output of deno coverage to check for a minimum coverage threshold
This is intended as a dead-simple check for a basic minimum threshold of test code coverage. It's a stop-gap until deno
implements some for of defining thresholds natively during a deno coverage run.
It parses the output of deno coverage, and only checks the All files line, for branch and line coverage,
ensuring they meet a minimum threshold.
First, you should run tests and generate a coverage report. Then you can run the deno coverage command and pipe the
output to this script, with optional values for branch and threshold (defaults to 85 for both).
deno test --coverage
deno coverage | deno run jsr:@silverbucket/threshold 90 92In this case the threshold for branch is 90% and the threshold for line is 91%
You can optionally import the Threshold class in your program.
import Threshold from "jsr:@silverbucket/threshold";
const thres = new Threshold(90, 92);
// get deno converage output
const errors = thres.processInput(deno_coverage);
if (errors.length) {
// report errors
}Nick Jennings nick@silverbucket.net
MIT