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test(path): add additional tests to normalize #5036

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merged 1 commit into from
Nov 9, 2023

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rwaskiewicz
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What is the current behavior?

I was questioning how this function behaves/should behave was the impetus for this change - I didn't understand what I was seeing at first when debugging some Stencil 4.x related path related bugs. this commit is spun out from that work.

GitHub Issue Number: N/A

What is the new behavior?

add additional tests to stencil's wrapped version of path.normalize, adding additional documentation to how the wrapped function works. specifically, add tests to verify the following behavior:

  1. how an empty string behaves
  2. how relative paths ('.', '..') behave
  3. how absolute paths ('/' for POSIX and '\' for Windows) behave

Does this introduce a breaking change?

  • Yes
  • No

Testing

No functional changes - added unit tests only

Other information

related to: #5029, #5032

@@ -249,6 +249,10 @@ export function join(...paths: string[]): string {
* @returns a resolved path!
*/
export function resolve(...paths: string[]): string {
/**
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I have no tests/additional PRs for resolve - so I threw a very similar comment in here for completeness sake

add additional tests to stencil's wrapped version of `path.normalize`,
adding additional documentation to how the wrapped function works.
specifically, add tests to verify the following behavior:
1. how an empty string behaves
2. how relative paths ('.', '..') behave
3. how absolute paths ('/' for POSIX and '\\' for Windows) behave

questioning how thise function behaves/should behave was the impetus
for this change - I didn't understand what I was seeing at first when
debugging some Stencil 4.x related path related bugs. this commit is
spun out from that work.

related to: #5029, #5032
@rwaskiewicz rwaskiewicz force-pushed the rwaskiewicz/test/normalize-new branch from 23c7d0f to 0bc8f6a Compare November 8, 2023 21:55
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github-actions bot commented Nov 8, 2023

--strictNullChecks error report

Typechecking with --strictNullChecks resulted in 1389 errors on this branch.

That's the same number of errors on main, so at least we're not creating new ones!

reports and statistics

Our most error-prone files
Path Error Count
src/dev-server/index.ts 37
src/mock-doc/serialize-node.ts 36
src/dev-server/server-process.ts 32
src/compiler/build/build-stats.ts 27
src/compiler/output-targets/dist-lazy/generate-lazy-module.ts 25
src/compiler/style/test/optimize-css.spec.ts 23
src/testing/puppeteer/puppeteer-element.ts 23
src/compiler/prerender/prerender-main.ts 22
src/runtime/client-hydrate.ts 19
src/screenshot/connector-base.ts 19
src/runtime/vdom/vdom-render.ts 18
src/compiler/config/test/validate-paths.spec.ts 16
src/dev-server/request-handler.ts 15
src/compiler/prerender/prerender-optimize.ts 14
src/compiler/sys/stencil-sys.ts 14
src/compiler/transpile/transpile-module.ts 14
src/runtime/vdom/vdom-annotations.ts 14
src/sys/node/node-sys.ts 14
src/compiler/build/build-finish.ts 13
src/compiler/prerender/prerender-queue.ts 13
Our most common errors
Typescript Error Code Count
TS2345 417
TS2322 394
TS18048 310
TS18047 101
TS2722 38
TS2532 34
TS2531 23
TS2454 14
TS2352 13
TS2769 10
TS2790 10
TS2538 8
TS2344 5
TS2416 4
TS2493 3
TS18046 2
TS2684 1
TS2488 1
TS2430 1

Unused exports report

There are 15 unused exports on this PR. That's the same number of errors on main, so at least we're not creating new ones!

Unused exports
File Line Identifier
src/runtime/bootstrap-lazy.ts 21 setNonce
src/screenshot/screenshot-fs.ts 18 readScreenshotData
src/testing/testing-utils.ts 198 withSilentWarn
src/utils/index.ts 145 CUSTOM
src/utils/index.ts 251 resolve
src/utils/index.ts 269 normalize
src/utils/index.ts 7 escapeRegExpSpecialCharacters
src/compiler/app-core/app-data.ts 25 BUILD
src/compiler/app-core/app-data.ts 115 Env
src/compiler/app-core/app-data.ts 117 NAMESPACE
src/compiler/fs-watch/fs-watch-rebuild.ts 123 updateCacheFromRebuild
src/compiler/types/validate-primary-package-output-target.ts 62 satisfies
src/compiler/types/validate-primary-package-output-target.ts 62 Record
src/testing/puppeteer/puppeteer-declarations.ts 485 WaitForEventOptions
src/compiler/sys/fetch/write-fetch-success.ts 7 writeFetchSuccessSync

@alicewriteswrongs
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oh still draft lol 😅

@rwaskiewicz
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@alicewriteswrongs Lol - it's done, I was just waiting for CI to pass just in case I missed something when I pulled it out of the larger paths related work

@rwaskiewicz rwaskiewicz marked this pull request as ready for review November 8, 2023 22:28
@rwaskiewicz rwaskiewicz requested a review from a team as a code owner November 8, 2023 22:28
@rwaskiewicz rwaskiewicz added this pull request to the merge queue Nov 9, 2023
Merged via the queue into main with commit 8e8f1e2 Nov 9, 2023
120 checks passed
@rwaskiewicz rwaskiewicz deleted the rwaskiewicz/test/normalize-new branch November 9, 2023 03:54
rwaskiewicz added a commit that referenced this pull request Nov 9, 2023
this patch ensures that paths are properly normalized by the compiler.
this ensures that regardless of the platform (operating system) that a
project is compiled on, paths are uniformly treated internally by
stencil. this has system-wide reaching effects - from the in-memory
filesystem, to configuration/output target validation, and file
generation.

previously, stencil's in-browser compilation support included a polyfill
for the following NodeJS `path` module functions: `join`, `normalize`,
`relative` & `resolve`. this polyfill did the following:
- it wrapped each of the aforementioned functions in a `normalizePath`
  function to convert Windows-style path separators (`\\`) to
  Unix/POSIX-style path separators (`/`)
- it overwrote the standard NodeJS `path` implementations for each of
  these functions.
as a result, calling `join` or any of the other three methods, even when
importing the method from `path` like below would result in the polyfill
being called:
```ts
import { join } from 'path'; // this imports the polyfilled `join`

// runs the native `path.join`, then normalizes the returned path
const filePath = join(part1, part2);
```

while this was 'nice' in that stencil engineers didn't need to think
about which implementation of `path` functions they were using, this
polyfill made some behavior of the compiler hard to understand.

the polyfills were removed in #4317 (b042d8b). this led to calls to the
aforementioned functions to call their original implementations, rather
than the wrapped implementations:
```ts
import { join } from 'path'; // imports Node's `join`

// run the native `path.join`, without any normalization
const filePath = join(part1, part2);
```

discrepencies arose where parts of the code would explicitly wrap a
call to `join()` (or one of its ilk) around a path normalization
function. this caused paths to not be uniformly normalized throughout
the codebase, leading to errors.

since the removal of in-browser compilation, additional pull requests
to fix path-related issues on windows have landed in the codebase:
- #4545 (cd58d9c)
- #4932 (b97dadc)

this commit builds on the previous commits by attempting to move
stencil's compiler completely over to polyfilled versions of the
mentioned `path` functions that are explicitly imported/called.

Some of the changes found herein were created/validated using Alice's
codemod branch, #4996
Co-authored-by: alicewriteswrongs <[email protected]>

STENCIL-975 Determine Scope of Path Polyfill Bug, Fix

Fixes: #4980
Fixes: #4961

Spun Off: #5036, #5032, #5029
github-merge-queue bot pushed a commit that referenced this pull request Nov 10, 2023
* fix(compiler): normalize paths on windows

this patch ensures that paths are properly normalized by the compiler.
this ensures that regardless of the platform (operating system) that a
project is compiled on, paths are uniformly treated internally by
stencil. this has system-wide reaching effects - from the in-memory
filesystem, to configuration/output target validation, and file
generation.

previously, stencil's in-browser compilation support included a polyfill
for the following NodeJS `path` module functions: `join`, `normalize`,
`relative` & `resolve`. this polyfill did the following:
- it wrapped each of the aforementioned functions in a `normalizePath`
  function to convert Windows-style path separators (`\\`) to
  Unix/POSIX-style path separators (`/`)
- it overwrote the standard NodeJS `path` implementations for each of
  these functions.
as a result, calling `join` or any of the other three methods, even when
importing the method from `path` like below would result in the polyfill
being called:
```ts
import { join } from 'path'; // this imports the polyfilled `join`

// runs the native `path.join`, then normalizes the returned path
const filePath = join(part1, part2);
```

while this was 'nice' in that stencil engineers didn't need to think
about which implementation of `path` functions they were using, this
polyfill made some behavior of the compiler hard to understand.

the polyfills were removed in #4317 (b042d8b). this led to calls to the
aforementioned functions to call their original implementations, rather
than the wrapped implementations:
```ts
import { join } from 'path'; // imports Node's `join`

// run the native `path.join`, without any normalization
const filePath = join(part1, part2);
```

discrepencies arose where parts of the code would explicitly wrap a
call to `join()` (or one of its ilk) around a path normalization
function. this caused paths to not be uniformly normalized throughout
the codebase, leading to errors.

since the removal of in-browser compilation, additional pull requests
to fix path-related issues on windows have landed in the codebase:
- #4545 (cd58d9c)
- #4932 (b97dadc)

this commit builds on the previous commits by attempting to move
stencil's compiler completely over to polyfilled versions of the
mentioned `path` functions that are explicitly imported/called.

Some of the changes found herein were created/validated using Alice's
codemod branch, #4996
Co-authored-by: alicewriteswrongs <[email protected]>

STENCIL-975 Determine Scope of Path Polyfill Bug, Fix

Fixes: #4980
Fixes: #4961

Spun Off: #5036, #5032, #5029

* fix validate-dist-collection tests

* fix prerendered-write-path test

* fix stencil-types tests

this commit removes a spy on `join.resolve` and updates the mocks to
properly spy on the wrapped `@utils`' `resolve` fn

* fix validate-paths tests

this commit updates the tests for `validate-paths`. it replaces
instances of `path.join` in assertions with stencil's own `join`
function. existing instances of `path.join` have been left as-is if they
pertain to user input. this allows us to exercise a user using either
path separator in CI (which runs in windows and linux).

the cache directory is now normalized if it is absolute. otherwise,
provided cache directories in `stencil.config.ts` would never get
normalized

* fix validate-output-www tests

this commit updates the tests for `validate-paths`. it replaces
instances of `path.join` in assertions with stencil's own `join`
function. existing instances of `path.join` have been left as-is if they
pertain to user input. this allows us to exercise a user using either
path separator in CI (which runs in windows and linux).

* fix validate-output-dist tests

this commit updates the tests for `validate-output`. it replaces
instances of `path.join` in assertions with stencil's own `join`
function. existing instances of `path.join` have been left as-is if they
pertain to user input. this allows us to exercise a user using either
path separator in CI (which runs in windows and linux).

this commit also switches `output-target.ts#getcomponentsDtsSrcFilePath`
over to use Stencil's join function to fix the tests

* fix validate-output-dist-custom-element tests

this commit updates the tests for `validate-output-dist-custom-element`.
it replaces instances of `path.join` in assertions with stencil's own `join
function. existing instances of `path.join` have been left as-is if they
pertain to user input. this allows us to exercise a user using either
path separator in CI (which runs in windows and linux).

* fix validate-testing tests

this commit updates the tests for `validate-testing`. it replaces
instances of `path.join` in assertions with stencil's own `join`
function. existing instances of `path.join` have been left as-is if they
pertain to user input. this allows us to exercise a user using either
path separator in CI (which runs in windows and linux).

the screenshot connector is now normalized if it is absolute. otherwise,
provided connector file path in `stencil.config.ts` would never get
normalized
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3 participants