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Diffstat (limited to 'docs/testing.md')
| -rw-r--r-- | docs/testing.md | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/docs/testing.md b/docs/testing.md index bb2790670..db81ee341 100644 --- a/docs/testing.md +++ b/docs/testing.md @@ -204,3 +204,29 @@ failure, you can specify the `--failfast` flag when running the suite. ```shell deno test --failfast ``` + +## Test coverage + +Deno will automatically determine test coverage for your code if you specify the +`--coverage` flag when starting `deno test`. Coverage is determined on a line by +line basis, and is acquired directly from the JavaScript runtime (V8). Because +of this, this coverage is very accurate. + +When all tests are done running a summary of coverage per file is printed to +stdout. In the future there will be support for `lcov` output too. + +``` +$ git clone git@github.com:denosaurs/deno_brotli.git && cd deno_brotli +$ deno test --coverage --unstable +Debugger listening on ws://127.0.0.1:9229/ws/5a593019-d185-478b-a928-ebc33e5834be +Check file:///home/deno/deno_brotli/.deno.test.ts +running 2 tests +test compress ... ok (26ms) +test decompress ... ok (13ms) + +test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out (40ms) + +test coverage: +file:///home/deno/deno_brotli/mod.ts 100.000% +file:///home/deno/deno_brotli/wasm.js 100.000% +``` |