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Test coverage #1

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Merged
joshpensky merged 14 commits into from
Mar 30, 2020
Merged

Test coverage #1

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154d21f
adding jest and hooks testing, adding useState tests
joshpensky Mar 26, 2020
d32b276
adds usePrevious tests
joshpensky Mar 26, 2020
a2ac414
adding useMap tests, fixing up other tests
joshpensky Mar 26, 2020
8186fc4
fixing useMap args type
joshpensky Mar 26, 2020
3b48580
adding custom renderHook util which tracks render count, update tests…
joshpensky Mar 26, 2020
1bfc9f2
adds useForceUpdate tests, adds test coverage module, moves act to utils
joshpensky Mar 27, 2020
9ab6a4b
adds useSet tests, adds clear method to map and set, updates test fil…
joshpensky Mar 27, 2020
6876635
adds tests for useMultiRef, defining return type for useMultiRef, add…
joshpensky Mar 27, 2020
50c919f
adding useStateReducer tests, making reducer only initialize once, al…
joshpensky Mar 27, 2020
163563d
adding test for re-renders in useStateReducer
joshpensky Mar 27, 2020
21e90d6
removing duped usePrevious tests
joshpensky Mar 27, 2020
c1feae5
removing unneeded spies
joshpensky Mar 27, 2020
ab8dd1f
adding jest-extended
joshpensky Mar 27, 2020
88ea613
removing global.d.ts, adding watch mode
joshpensky Mar 30, 2020
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3 changes: 2 additions & 1 deletion .eslintrc
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Expand Up @@ -4,7 +4,8 @@
"env": {
"browser": true,
"node": true,
"es6": true
"es6": true,
"jest": true
},
"rules": {
"no-console": "off",
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3 changes: 2 additions & 1 deletion .gitignore
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Expand Up @@ -5,4 +5,5 @@ npm-*
*-debug.log

# build folders
dist
dist
coverage
1 change: 1 addition & 0 deletions jest-preprocess.js
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@@ -0,0 +1 @@
module.exports = require('babel-jest').createTransformer();
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@bchiang7 bchiang7 Mar 30, 2020

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What does createTransformer() do?

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@joshpensky joshpensky Mar 30, 2020 •
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I believe the transformer is what allows Jest to transpile all of our TS code to JS so it can run its tests

I'm not sure if this needs to be explicitly stated in its own file anymore, but it's listed under the TS section for Jest! https://jestjs.io/docs/en/getting-started#using-typescript

18 changes: 18 additions & 0 deletions jest.config.js
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@@ -0,0 +1,18 @@
module.exports = {
transform: {
'^.+\\.tsx?$': 'ts-jest',
},
testRegex: '((\\.|/)(test|spec))\\.tsx?$',
moduleFileExtensions: ['ts', 'tsx', 'js', 'jsx'],
testPathIgnorePatterns: ['node_modules', '.cache'],
globals: {
__PATH_PREFIX__: '',
'ts-jest': {
diagnostics: false,
},
},
setupFilesAfterEnv: ['jest-extended'],
testURL: 'http://localhost',
collectCoverageFrom: ['src/**/*.ts'],
watchPlugins: ['jest-watch-typeahead/filename', 'jest-watch-typeahead/testname'],
};
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