@angular/build:karma ignores overrides in karma.conf.js
Command
test
Is this a regression?
- Yes, this behavior used to work in the previous version
The previous version in which this bug was not present was
No response
Description
Using the new @angular/build:karma builder, coverage overrides defined in the karma.conf.js are ignored.
Minimal Reproduction
- clone https://github.com/fynnfeldpausch/karma-coverage
- take a look at
app.ts- there is an additional method - take a look at
karma.conf.jsand the defined coverage- global coverage is set to 80%
- local coverage is set to 0% for
app.ts
- run
ng test -- --no-watch --no-progress --browsers=ChromeHeadless --code-coverage
Exception or Error
Test run fails with coverage errors:
19 08 2025 15:57:46.079:ERROR [coverage]: Chrome Headless 139.0.0.0 (Mac OS 10.15.7): Coverage for statements (75%) does not meet per-file (/repro-app/src/app/app.ts) threshold (80%)
19 08 2025 15:57:46.079:ERROR [coverage]: Chrome Headless 139.0.0.0 (Mac OS 10.15.7): Coverage for lines (66.66%) does not meet per-file (/repro-app/src/app/app.ts) threshold (80%)
19 08 2025 15:57:46.079:ERROR [coverage]: Chrome Headless 139.0.0.0 (Mac OS 10.15.7): Coverage for functions (0%) does not meet per-file (/repro-app/src/app/app.ts) threshold (80%)
Your Environment
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/ ___ \| | | | (_| | |_| | | (_| | | | |___| |___ | |
/_/ \_\_| |_|\__, |\__,_|_|\__,_|_| \____|_____|___|
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Angular CLI: 20.1.6
Node: 24.2.0
Package Manager: npm 11.3.0
OS: darwin arm64
Angular: 20.1.7
... common, compiler, compiler-cli, core, forms
... platform-browser, router
Package Version
------------------------------------------------------
@angular-devkit/architect 0.2001.6
@angular-devkit/core 20.1.6
@angular-devkit/schematics 20.1.6
@angular/build 20.1.6
@angular/cli 20.1.6
@schematics/angular 20.1.6
rxjs 7.8.2
typescript 5.8.3
zone.js 0.15.1
Anything else relevant?
No response