[devtomtom]

Overview

Reworks @ui5/middleware-code-coverage to support UI5 CLI v5. The middleware now instruments the build output exposed through the new builtResources reader (Specification Version 5.0+), handles preload bundles and source maps.

⚠️ BREAKING CHANGE: The middleware uses specVersion 5.0 and requires UI5 CLI v5 or higher.

What changed

Coverage against the build output. Instead of instrumenting source resources, the middleware reads from builtResources (root project + dependencies). The UI5 runtime loads each covered module individually as its unminified -dbg variant; the middleware instruments that -dbg source for faithful per-line coverage, falling back to the runtime file when no -dbg exists (minify disabled, or -dbg requested directly), and reports everything under the runtime path so coverage keys line up with what the client selects.

Bundle handling. Preload bundles (*-preload.js, etc.) are never instrumented — a concatenated bundle corrupts coverage and its indexed source map crashes istanbul. They are served verbatim by the middleware.

Source maps / TypeScript. When a module carries a sourceMappingURL (inline data-URI or a sibling .map), the middleware feeds istanbul the input source map so coverage is attributed to the original source — e.g. a TypeScript project's -dbg output maps back to the .ts.
Fixes: #189

Related UI5 runtime change:
UI5/openui5@8baf315

JIRA: CPOUI5FOUNDATION-1350
JIRA: CPOUI5FOUNDATION-1203

[d3xter666]

The solution works as expected and I have tested the scenarios in the fixtures and whether they provide coverage and correct paths to the files.

As this is a breaking change it's worth mentioning why is it breaking.
For exmaple: specVersion 5 is not available in @ui5/cli version 4 as well as builtResources

[matz3]

Just a first review, but looks very good so far 👍🏻
I have tested it locally on macOS and want to test on Windows.

[matz3]

I have tested it locally on macOS and want to test on Windows.

I also tested on Windows, incl. TypeScript and it works as expected. Rewriting the paths to strip the drive (e.g. c:\\) is needed and works as expected.