angular/packages/core/test/bundling/README.md

Bundle

js_expected_symbol_test

This folder contains tests which assert that most of the code is tree shaken away. This is asserted by keeping gold files of all symbols which are expected to be retained. When doing renaming it is often necessary to update the gold files; to do so use these scripts:

yarn run symbol-extractor:check
yarn run symbol-extractor:update

Debugging

You can inspect the build output of each project by using the bundle.debug target.

yarn bazel build  //packages/core/test/bundling/standalone_bootstrap:bundle.debug

This target mostly tree shakes while keeping the symbols. To have a look at the minimal output (with inlining etc.) use the bundle.debug.min target.

yarn bazel build  //packages/core/test/bundling/standalone_bootstrap:bundle.debug.min