feat: add experimental precompilation to global setup #1434
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Precompilation uses TypeScript API + Angular AST transformers to compile all files which are included in the tsconfig file one is using for Jest. With precompilation, the precompiled output is written in disk and `ng-jest-transformer` will read disk to get it. After that `ng-jest-transformer` can reuse the precompilation output to reduce the resources to compile codes as well as fixing some issues related to missing source files in compiler. ## Caveats TypeScript solution style is not supported yet. To workaround it, one needs to specify a wild card syntax in the tsconfig file which is provided to `ngJest` option.
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Summary
Precompilation uses TypeScript API + Angular AST transformers to compile all files which are included in the tsconfig file one is using for Jest.
With precompilation, the precompiled output is written in disk and
ng-jest-transformerwill read disk to get it. After thatng-jest-transformercan reuse the precompilation output to reduce the resources to compile codes as well as fixing some issues related to missing source files in compilerFixes #963
Fixes #1199
Caveats
TypeScript solution style is not supported yet. To workaround it, one needs to specify a wild card syntax in the tsconfig file which is provided to
ngJestoption.Test plan
Added example test cases from the linked issues.
Green CI
Does this PR introduce a breaking change?
Other information
N.A.