fix(@angular/build): enhance Vitest dependency externalization and pre-bundling #31781
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…e-bundling This commit refactors the dependency handling for the Vitest runner to improve flexibility and correctness, especially for browser-based tests. The previously hardcoded list of external Angular packages has been removed. Instead, a new `externalPackages: true` option is passed to the application builder, allowing for more dynamic and configurable externalization of packages. This prevents packages from `node_modules` from being bundled into the test entry points. Note: For cases where a dependency should not be pre-bundled, the `optimizeDeps.exclude` option can be used within a custom runner configuration file.
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Closes angular#31745 Actually closed by angular#31781
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This commit refactors the dependency handling for the Vitest runner to improve flexibility and correctness, especially for browser-based tests.
The previously hardcoded list of external Angular packages has been removed. Instead, a new
externalPackages: trueoption is passed to the application builder, allowing for more dynamic and configurable externalization of packages. This prevents packages fromnode_modulesfrom being bundled into the test entry points.Note: For cases where a dependency should not be pre-bundled, the
optimizeDeps.excludeoption can be used within a custom runner configuration file.