/
paths-to-module-name-mapper.spec.ts
96 lines (90 loc) · 3.11 KB
/
paths-to-module-name-mapper.spec.ts
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import { logTargetMock } from '../__helpers__/mocks'
import { pathsToModuleNameMapper } from './paths-to-module-name-mapper'
const tsconfigMap = {
log: ['src/utils/log'],
server: ['src/server'],
client: ['src/client', 'src/client/index'],
'util/*': ['src/utils/*'],
'api/*': ['src/api/*'],
'test/*': ['test/*'],
'mocks/*': ['test/mocks/*'],
'test/*/mock': ['test/mocks/*', 'test/__mocks__/*'],
'@foo-bar/common': ['../common/dist/library'],
'@pkg/*': ['./packages/*'],
}
describe('pathsToModuleNameMapper', () => {
test('should convert tsconfig mapping with no given prefix', () => {
expect(pathsToModuleNameMapper(tsconfigMap)).toMatchInlineSnapshot(`
{
"^@foo\\-bar/common$": "../common/dist/library",
"^@pkg/(.*)$": "./packages/$1",
"^api/(.*)$": "src/api/$1",
"^client$": [
"src/client",
"src/client/index",
],
"^log$": "src/utils/log",
"^mocks/(.*)$": "test/mocks/$1",
"^server$": "src/server",
"^test/(.*)$": "test/$1",
"^test/(.*)/mock$": [
"test/mocks/$1",
"test/__mocks__/$1",
],
"^util/(.*)$": "src/utils/$1",
}
`)
})
test('should add `js` extension to resolved config with useESM: true', () => {
expect(pathsToModuleNameMapper(tsconfigMap, { useESM: true })).toEqual({
/**
* Why not using snapshot here?
* Because the snapshot does not keep the property order, which is important for jest.
* A pattern ending with `\\.js` should appear before another pattern without the extension does.
*/
'^log$': 'src/utils/log',
'^server$': 'src/server',
'^client$': ['src/client', 'src/client/index'],
'^util/(.*)\\.js$': 'src/utils/$1',
'^util/(.*)$': 'src/utils/$1',
'^api/(.*)\\.js$': 'src/api/$1',
'^api/(.*)$': 'src/api/$1',
'^test/(.*)\\.js$': 'test/$1',
'^test/(.*)$': 'test/$1',
'^mocks/(.*)\\.js$': 'test/mocks/$1',
'^mocks/(.*)$': 'test/mocks/$1',
'^test/(.*)/mock\\.js$': ['test/mocks/$1', 'test/__mocks__/$1'],
'^test/(.*)/mock$': ['test/mocks/$1', 'test/__mocks__/$1'],
'^@foo\\-bar/common$': '../common/dist/library',
'^@pkg/(.*)\\.js$': './packages/$1',
'^@pkg/(.*)$': './packages/$1',
'^(\\.{1,2}/.*)\\.js$': '$1',
})
})
test.each(['<rootDir>/', 'foo'])('should convert tsconfig mapping with given prefix', (prefix) => {
expect(pathsToModuleNameMapper(tsconfigMap, { prefix })).toMatchSnapshot(prefix)
})
test('should warn about mapping it cannot handle', () => {
const log = logTargetMock()
log.clear()
expect(
pathsToModuleNameMapper({
kept: ['src/kept'],
'no-target': [],
'too/*/many/*/stars': ['to/*/many/*/stars'],
}),
).toMatchInlineSnapshot(`
{
"^kept$": "src/kept",
}
`)
expect(log.lines.warn).toMatchInlineSnapshot(`
[
"[level:40] Not mapping "no-target" because it has no target.
",
"[level:40] Not mapping "too/*/many/*/stars" because it has more than one star (\`*\`).
",
]
`)
})
})