How to globally register Injection Tokens within the Angular TestBed
Read OriginalThis technical article explains how to configure the Angular TestBed to globally register Injection Tokens (like those for environment variables or themes) used across an application. It details the problem of repetitive provider declarations in tests, demonstrates the error thrown when tokens are missing, and provides a solution using `TestBed.overrideProvider` in a global test setup file to keep test code DRY.
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