* [SIP-9] Introduce TypeScript
- Introduce TypeScript and co to both source and tests
- Define alias for src directory in both webpack config and jest config so we can avoid using long relative paths like ../../src in both source and tests
- Type check feature flags system to prevent typos of flag names
- Change the feature flags system and the flags on window instead of populating them through the state tree. When introducing the first SCOPED_FILTER feature flag, it became too difficult to pipe the flags through the state initializers and layers of components and containers (the resulting code is hard to read and has a handful of methods taking an additional feature flag map parameter). Given that feature flags don't change throughout the life time of the app, it is better to leave them on window for easy access than piping them through the global state tree, which is meant to store the state of the app which changes frequently.
- Add a barebone filter panel that only shows when the SCOPED_FILTER feature flag is on
* Remove unnecessary dev-dependency on gl
* - Adding linting for TypeScript files via tslint.
- Fixing linting for Javascript files importing Typscript files
- Also fix linting for Javascript files that now leverage the webpack alias for the src directory
- up Typescript and type def versions
* Rename src directory's webpack alias from @ to src to be more explicit.
* [refactor] Migrate from Mocha+Chai to Jest
This change migrates all the existing unit tests
- to Jest's global expect and matchers from chai's imported expect, asserts and matchers.
- to Jest's describe/test from mocha's describe/it
The majority of the mechanical changes to tests are achieved through running jest-codemods. The only two note-worthy manual tweaks:
1. Setting a testURL of http://localhost in jest config and adjusting a few tests to leverage this value instead of relying on about:blank.
2. Re-enabling ExploreChartPanel_spec which was previously commented out as we cannot have empty tests with nothing in it with Jest. :)
This change also removes dependencies to Mocha and Chai.
* Remove the test:one command as it now does the same thing as test.
* Fixing lint errors. The diff looks large but is large done through `yarn run lint --fix`
The only noteworthy change is the one in eslintrc for tests. The env has been updated from mocha to jest.
* Adding eslint-plugin-jest and further modify tests.
- One small fix in sqllab's Timer Spec for a test that is not using the spy it created for testing.
- Deletion of a duplicated test caught by eslint-plugin-jest.
* - Make istanbul coverage work with Jest.
- Remove dependency on stand-alone istanbul and babel-istanbul as they're built-into jest. Yes!
* Attempt to fix dynamic imports in tests.
* run sequentially and log heap usage
* - tweaking maxworkers for travis and specifying coverageDirectory for codecov
- remove dynamic import in shim.js now that it is set in babelrc for tests only.
* rename spec folder
* remove special handling for viz_type control since it now uses VizTypeControl
* add test for getOptions
* linting
* add test for cwp
* linting
