Add Integration Tests #627

agilgur5 · 2020-03-19T06:49:45Z

This is quite a big PR as it refactors a bunch of the test set-up to handle two different types of tests, as well as adds integration tests for tiny-invariant, rollup-plugin-postcss, styled-components, and regeneratorRuntime. Fixes #481

I initially tried to have the integration tests have their own package.json and node_modules, as the build-withConfig folder had before (and with a new CI workflow with working-directory set to the integration test dir), but this proved extremely confusing and very time-consuming to deal with.
It basically requires that scripts, like tests, run from the integration test dir, as if they run from root, they won't read the node_modules (node scans upward, so from the integration test dir, it'll get the integration deps and the TSDX deps, but the opposite doesn't work). And trying to run scripts from there causes lots of inconsistencies all over the place, so I just scrapped that idea.
Open to ideas on better integration testing structures, but the other option proved completely not worth the time, so don't want to spend a ton more time trying to get something else to work either.

Also found some integration failures all over the place while adding this, welp 😕 These include:

--extractErrors removes invariant but doesn't replace it with ErrorProd or ErrorDev. And it leaves the import in, just importing nothing 😕
- warning isn't changed what-so-ever
- I still think this should be split out as its own Rollup or Babel plugin, it's fairly independent of TSDX, doesn't seem to be used much by users, and can benefit more than just TSDX
rollup-plugin-postcss any PostCSS plugins like autoprefixer and cssnano work, but the name of the extracted CSS file is the same as the output, i.e. package-name.cjs.development.css
babel-plugin-styled-components doesn't work, plugin order matters for it. See Doesn't play well with babel-plugin-styled-components -- plugin order matters #543

agilgur5 · 2020-03-23T05:11:11Z

Ok fixing the conflicts with #582 in yarn.lock was not easy 😕 . But done now, so this is ready to merge. Should go in before #525 , so need to review this soon

Realized I might be able to use yarn workspaces to have the integration-tests dir split out. Then TSDX can still be used (and as tsdx in scripts), but shared devDeps might not work correctly unless we put them in root similar to Lerna.
I feel like that's really involved prior to having a monorepo (see #634, #635), but that might correctly describe the relationship between TSDX and its integrations; i.e. that it's a separate dependency.

Hmmmmmm... Then again, the relationship between integration tests and E2E tests is actually the same -- they both should be separate workspaces with tsdx used inside of them. So can hold off on this for a bit I guess, since will be refactoring the E2E to be unit tests eventually (and so might do the same for integration?)

test/integration/fixtures/build-withBabel/src/styled.tsx

test/integration/tsdx-build-withBabel.test.js

agilgur5

Ok this looks good to go to me. Made some minor changes for review and fixed a yarn.lock issue resulting from merge conflicts.

This still has the same issue as mentioned in #621 (comment) and the grep issue in #525 (comment) but I think these added tests and fixtures should be merged with urgency given the issues in #638 etc.

Can figure out smaller nuances later. Will leave integration directory as is, maybe can consider extracting as a separate workspace/lerna repo later. Yarn workspaces wouldn't change the dependency tree anyway since they're supposed to all be at root.

test/util.js

agilgur5

Ok added the grep helper here with credit to the author. But I probably need to refactor the test utils a bit now (see above comment), welp. Was writing up an execWithCache function for this and #621 and that also needs a place to go in utils, so that needs to be done.

Also utils-safePackageName.test.ts is actually a unit test, so that should be put in a unit test directory (and that needs to be added to the README too).

Will get to these in the morning or something

- move build-withConfig into integration-tests/fixtures/ - move its package.json deps into root devDeps - it's much easier to work with this way vs. as subdirectories with separate package.json and node_modules - and consistent with how the E2E tests work too - (deps): remove eslint-config-postcss as it wasn't used anyway - move fixtures/ to test/fixtures as they're specific to E2E tests - move test/jest.config.json to root jest.config.js - so it's used by default, no need for --config - significantly simplify jest.config.js now that it's in root too - and the simplification allows it to be used for both test dirs (docs): update fixtures README to remove "manual" references (docs): reword all mentions of tests to say E2E tests - that's what they currently are, though I'd like to refactor many to be unit tests (docs): add tests README and integration test fixtures README

- the test output strips away `invariant` entirely in all builds, instead of replacing it with ErrorProd/ErrorDev etc... - it leaves an empty import however... - which gives an unused import warning during builds - and it doesn't do anything with `warning` at all, it doesn't get stripped or changed, and it's message is not in codes.json - the source code indeed only checks for 'invariant' - and it does generate errors/codes.json, ErrorProd.js, ErrorDev.js - I'm not 100% sure, but that seems to be buggy to me (refactor): split --extractError code into a build-options fixture - as it doesn't require tsdx.config.js at all - but it is an integration test, as it requires tiny-invariant etc (clean): remove the errors/ directory as that's auto-generated by --extractErrors and is the thing being tested (clean): remove src/foo.ts as it's extraneous

- add and import a basic CSS file in build-withConfig - use the existing tsdx.config.js for the rollup config - ensure that one CSS file gets extracted at the end - ensure that it is properly autoprefixed and minifed too

- change testDir in tests to the new names - reword docs and scripts so they handle this properly (refactor): interpolate directory in the lint tests - DRY up so don't have to change all these lines when the path is a constant

- because everything other than the test was indeed a fixture, and it's better to properly specify those as such for clarity - and consistency with the other tests (format): fix some linting issues in tsdx-lint.test.js - it's now no longer ignored by the lint script (which ignores the whole directory due to the fixtures)

- because it's the only actual unit test! (docs): add unit test dir to test README

- well, babel-plugin-styled-components fails... but we have a TODO to make it work at least! - ensure styled template tags get converted to regular functions - add a build-withBabel fixture (deps): add styled-components - and it has peerDeps on react-dom and react-is - add @types/styled-components for TS usage

- when using transform-runtime with helpers: false, it should import from @babel/runtime/regenerator - either this plugin configured like this or a direct import of regenerator in one's own library code is the only way to get it to be imported - just using a generator will make regenerator code added, but without any import (leading to a ReferenceError) - TODO: make it easier or automatic to use generators - useBuiltIns of preset-env?

- regular grep will have an error code if it failed to match, but shell.grep doesn't, at least not when silent (maybe it shouldn't be silent? that might be too noisy) - so add a wrapper that checks that stdout also has the pattern that was being matched (grep outputs line:pattern for each match) Co-Authored-By: Anton Gilgur <[email protected]>

- nothing uses it or its deps and it doesn't seem to have ever been used -- the commit that added it (89c0470) didn't use it either

- regression test as there was previously a bug where only plugins were merged and presets would only be merged if your preset list included preset-env - this is the first test that adds any sort of preset - couldn't find a small preset that would be easy to test against, so made a tiny one locally that just does a simple replace with babel-plugin-replace-identifiers

agilgur5 · 2020-03-27T05:08:43Z

Rebased with (refactor): split build tests into separate files per fixture #621 and added execWithCache everywhere like it has. This actually took a bit of effort due to the number of commits and renames to rebase against.
Moved grep helper to utils/shell.js
Moved util to utils/fixture.js (also took some effort due to renames / rewriting imports)
Removed unused utils/psTree.js and its dependencies
Moved utils-safePackageName.test.ts to a unit test dir
Fixed a rebase issue I made where I accidentally merged two commits together that should be split
Added a test that ensures Babel presets are merged, which was the original goal of create test setup for custom Babel configs #481, to add a regression test for the fix in (fix): ensure Babel presets are merged #473

agilgur5

LGTM

agilgur5 force-pushed the integration-tests branch 3 times, most recently from b7f3094 to d1a72e3 Compare March 19, 2020 07:17

agilgur5 force-pushed the integration-tests branch 2 times, most recently from 9764fbf to 1356486 Compare March 23, 2020 05:09

agilgur5 commented Mar 23, 2020

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test/integration/fixtures/build-withBabel/src/styled.tsx Outdated Show resolved Hide resolved

test/integration/tsdx-build-withBabel.test.js Show resolved Hide resolved

This was referenced Mar 23, 2020

An in-range update of react is breaking the build 🚨 #332

Closed

test/ dir is in include, non-spec TS files (e.g. test utils) break build with v0.13 rootDir: ./src #638

Closed

agilgur5 force-pushed the integration-tests branch from 1356486 to ac7d235 Compare March 25, 2020 06:22

agilgur5 commented Mar 25, 2020

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agilgur5 commented Mar 25, 2020

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agilgur5 and others added 9 commits March 26, 2020 00:20

(test): ensure tsdx.config.js w/ rollup-plugin-postcss works

29ebc6c

- add and import a basic CSS file in build-withConfig - use the existing tsdx.config.js for the rollup config - ensure that one CSS file gets extracted at the end - ensure that it is properly autoprefixed and minifed too

(refactor): move safePackageName test to a unit test dir

7cb8a16

- because it's the only actual unit test! (docs): add unit test dir to test README

agilgur5 force-pushed the integration-tests branch from 6997b40 to 2a04c68 Compare March 26, 2020 04:43

agilgur5 added 2 commits March 26, 2020 18:03

(clean): remove unused test/utils/psKill and its deps

6b886ed

- nothing uses it or its deps and it doesn't seem to have ever been used -- the commit that added it (89c0470) didn't use it either

agilgur5 commented Mar 27, 2020

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agilgur5 merged commit ee391e4 into jaredpalmer:master Mar 27, 2020

This was referenced Mar 28, 2020

(fix): ensure Babel presets are merged #473

Merged

(refactor): migrate all tests and test helper code to TS #649

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agilgur5 mentioned this pull request Apr 8, 2020

docs: add ambroseus as a contributor #670

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agilgur5 mentioned this pull request Sep 18, 2020

Use regenerator instead of async-to-promises to transpile async functions #795

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agilgur5 mentioned this pull request Oct 12, 2020

fix/deps: upgrade rollup-plugin-typescript2 to fix cache issue #896

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agilgur5 mentioned this pull request Oct 27, 2020

Adding --extractErrors to build throws errors #912

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agilgur5 mentioned this pull request Nov 24, 2020

yarn 2 compatibility #933

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agilgur5 mentioned this pull request May 10, 2022

test: add initial unit test suite ezolenko/rollup-plugin-typescript2#321

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Add Integration Tests #627

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