The karma builder config for include & export behaves different

[akhilbiju]

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

I always thought that we did not have any support to exclude tests since passing a similar glob path in include would work but it never worked in exclude!!

Seems like the include option in the angular builder for karma is normalized, while the exclude is passed directly to the glob method.
I see there are a lot of changes to the include strings that are made before it is used to match the files.
But, the exclude seems to be used directly without any modifications.

I think the exclude should have at least been normalized like the include for common user errors like using back-slashes or the relativeProjectRoot.
https://github.com/angular/angular-cli/blob/b479063ab5ef625a5ee883bf5cc335572bdcb83e/packages/angular_devkit/build_angular/src/builders/karma/find-tests-plugin.ts#L112 Opens in new window or tab

I had included the relative project root (src/) in include and it worked as expected, but when I included the same in exclude it didn't work.
As a user, I would think that include and exclude strings would work the same way, but in fact, it is not.
Also, I can't find this behavior documented anywhere.
I see only 2 special cases documented here

Can we do something here?

Minimal Reproduction

Using relative project root works with include but not with exclude
The configuration mentioned is used in the angular.json

Exception or Error

No response

Your Environment

Angular CLI: 15.2.10
Node: 18.10.0
Package Manager: npm 8.19.2
OS: win32 x64

Angular: 15.2.10
... animations, cli, common, compiler, compiler-cli, core, forms
... language-service, localize, platform-browser
... platform-browser-dynamic, router

Package                            Version
------------------------------------------------------------
@angular-devkit/architect          0.1502.10
@angular-devkit/build-angular      15.2.10
@angular-devkit/core               15.2.10
@angular-devkit/schematics         15.2.10
@angular/cdk                       15.2.9
@angular/material                  15.2.9
@angular/material-moment-adapter   15.2.9
@schematics/angular                15.2.10
rxjs                               6.6.7
typescript                         4.9.5

Anything else relevant?

No response

[akhilbiju]

++ @alan-agius4 @clydin

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