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feat: add preset creator functions
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9 files changed

+355
-55
lines changed

9 files changed

+355
-55
lines changed

‎presets/index.d.ts

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@@ -18,5 +18,7 @@ declare const _default: {
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snapshotSerializers: string[];
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};
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defaultTransformerOptions: import('ts-jest').TsJestTransformerOptions;
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createCjsPreset: typeof import('../build/presets').createCjsPreset;
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createEsmPreset: typeof import('../build/presets').createEsmPreset;
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};
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export default _default;

‎presets/index.js

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@@ -4,4 +4,6 @@ module.exports = {
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defaults: ngJestPresets.defaultPreset,
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defaultsESM: ngJestPresets.defaultEsmPreset,
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defaultTransformerOptions: ngJestPresets.defaultTransformerOptions,
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createCjsPreset: ngJestPresets.createCjsPreset,
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createEsmPreset: ngJestPresets.createEsmPreset,
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};

‎src/presets/__snapshots__/index.spec.ts.snap

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@@ -21,12 +21,14 @@ exports[`Jest presets should have the correct types which come from \`ts-jest\`
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snapshotSerializers: string[];
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};
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defaultTransformerOptions: import('ts-jest').TsJestTransformerOptions;
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createCjsPreset: typeof import('../build/presets').createCjsPreset;
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createEsmPreset: typeof import('../build/presets').createEsmPreset;
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};
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export default _default;
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"
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`;
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exports[`Jest presets should return the correct jest config 1`] = `
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exports[`Jest presets should return jest config with CJS preset creator function with options 1`] = `
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{
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"moduleFileExtensions": [
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"ts",
@@ -45,6 +47,7 @@ exports[`Jest presets should return the correct jest config 1`] = `
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"^.+\\.(ts|js|mjs|html|svg)$": [
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"jest-preset-angular",
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{
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"diagnostics": false,
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"stringifyContentPathRegex": "\\.(html|svg)$",
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"tsconfig": "<rootDir>/tsconfig.spec.json",
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},
@@ -56,7 +59,142 @@ exports[`Jest presets should return the correct jest config 1`] = `
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}
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`;
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exports[`Jest presets should return the correct jest config 2`] = `
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exports[`Jest presets should return jest config with CJS preset creator function without options 1`] = `
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{
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"moduleFileExtensions": [
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"ts",
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"html",
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"js",
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"json",
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"mjs",
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],
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"snapshotSerializers": [
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"jest-preset-angular/build/serializers/html-comment",
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"jest-preset-angular/build/serializers/ng-snapshot",
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"jest-preset-angular/build/serializers/no-ng-attributes",
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],
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"testEnvironment": "jsdom",
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"transform": {
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"^.+\\.(ts|js|mjs|html|svg)$": [
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"jest-preset-angular",
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{
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"stringifyContentPathRegex": "\\.(html|svg)$",
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"tsconfig": "<rootDir>/tsconfig.spec.json",
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},
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],
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},
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"transformIgnorePatterns": [
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"node_modules/(?!.*\\.mjs$)",
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],
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}
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`;
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exports[`Jest presets should return jest config with ESM preset creator function with options 1`] = `
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{
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"extensionsToTreatAsEsm": [
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".ts",
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],
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"moduleFileExtensions": [
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"ts",
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"html",
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"js",
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"json",
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"mjs",
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],
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"moduleNameMapper": {
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"tslib": "tslib/tslib.es6.js",
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},
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"snapshotSerializers": [
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"jest-preset-angular/build/serializers/html-comment",
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"jest-preset-angular/build/serializers/ng-snapshot",
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"jest-preset-angular/build/serializers/no-ng-attributes",
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],
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"testEnvironment": "jsdom",
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"transform": {
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"^.+\\.(ts|js|html|svg)$": [
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"jest-preset-angular",
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{
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"diagnostics": false,
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"stringifyContentPathRegex": "\\.(html|svg)$",
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"tsconfig": "<rootDir>/tsconfig.spec.json",
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"useESM": true,
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},
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],
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},
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"transformIgnorePatterns": [
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"node_modules/(?!tslib)",
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],
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}
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`;
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exports[`Jest presets should return jest config with ESM preset creator function without options 1`] = `
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{
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"extensionsToTreatAsEsm": [
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".ts",
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],
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"moduleFileExtensions": [
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"ts",
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"html",
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"js",
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"json",
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"mjs",
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],
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"moduleNameMapper": {
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"tslib": "tslib/tslib.es6.js",
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},
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"snapshotSerializers": [
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"jest-preset-angular/build/serializers/html-comment",
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"jest-preset-angular/build/serializers/ng-snapshot",
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"jest-preset-angular/build/serializers/no-ng-attributes",
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],
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"testEnvironment": "jsdom",
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"transform": {
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"^.+\\.(ts|js|html|svg)$": [
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"jest-preset-angular",
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{
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"stringifyContentPathRegex": "\\.(html|svg)$",
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"tsconfig": "<rootDir>/tsconfig.spec.json",
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"useESM": true,
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},
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],
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},
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"transformIgnorePatterns": [
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"node_modules/(?!tslib)",
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],
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}
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`;
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exports[`Jest presets should return the correct jest config with legacy preset config 1`] = `
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{
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"moduleFileExtensions": [
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"ts",
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"html",
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"js",
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"json",
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"mjs",
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],
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"snapshotSerializers": [
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"jest-preset-angular/build/serializers/html-comment",
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"jest-preset-angular/build/serializers/ng-snapshot",
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"jest-preset-angular/build/serializers/no-ng-attributes",
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],
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"testEnvironment": "jsdom",
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"transform": {
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"^.+\\.(ts|js|mjs|html|svg)$": [
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"jest-preset-angular",
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{
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"stringifyContentPathRegex": "\\.(html|svg)$",
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"tsconfig": "<rootDir>/tsconfig.spec.json",
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},
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],
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},
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"transformIgnorePatterns": [
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"node_modules/(?!.*\\.mjs$)",
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],
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}
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`;
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exports[`Jest presets should return the correct jest config with legacy preset config 2`] = `
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{
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"extensionsToTreatAsEsm": [
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".ts",

‎src/presets/create-cjs-preset.ts

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@@ -0,0 +1,25 @@
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import type { Config } from 'jest';
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import type { TsJestTransformerOptions } from 'ts-jest';
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4+
import { basePresetConfig } from './utils';
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type CjsPresetType = typeof basePresetConfig & Required<Pick<Config, 'transformIgnorePatterns' | 'transform'>>;
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8+
type CjsPresetOptionsType = Omit<TsJestTransformerOptions, 'useESM' | 'stringifyContentPathRegex' | 'compiler'>;
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10+
export const createCjsPreset = (options: CjsPresetOptionsType = {}): CjsPresetType => {
11+
return {
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...basePresetConfig,
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transformIgnorePatterns: ['node_modules/(?!.*\\.mjs$)'],
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transform: {
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'^.+\\.(ts|js|mjs|html|svg)$': [
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'jest-preset-angular',
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{
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tsconfig: '<rootDir>/tsconfig.spec.json',
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stringifyContentPathRegex: '\\.(html|svg)$',
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...options,
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},
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],
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},
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};
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};

‎src/presets/create-esm-preset.ts

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@@ -0,0 +1,31 @@
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import type { Config } from 'jest';
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import type { TsJestTransformerOptions } from 'ts-jest';
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import { basePresetConfig } from './utils';
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type EsmPresetType = typeof basePresetConfig &
7+
Required<Pick<Config, 'extensionsToTreatAsEsm' | 'moduleNameMapper' | 'transformIgnorePatterns' | 'transform'>>;
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type EsmPresetOptionsType = Omit<TsJestTransformerOptions, 'useESM' | 'stringifyContentPathRegex' | 'compiler'>;
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11+
export const createEsmPreset = (options: EsmPresetOptionsType = {}): EsmPresetType => {
12+
return {
13+
...basePresetConfig,
14+
extensionsToTreatAsEsm: ['.ts'],
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moduleNameMapper: {
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tslib: 'tslib/tslib.es6.js',
17+
},
18+
transformIgnorePatterns: ['node_modules/(?!tslib)'],
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transform: {
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'^.+\\.(ts|js|html|svg)$': [
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'jest-preset-angular',
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{
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tsconfig: '<rootDir>/tsconfig.spec.json',
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stringifyContentPathRegex: '\\.(html|svg)$',
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useESM: true,
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...options,
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},
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],
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},
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};
31+
};

‎src/presets/index.spec.ts

Lines changed: 30 additions & 3 deletions
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@@ -1,11 +1,38 @@
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import fs from 'fs';
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import path from 'path';
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4-
import { defaultPreset, defaultEsmPreset } from './';
4+
import { defaultPreset, defaultEsmPreset, createCjsPreset, createEsmPreset } from './';
55

66
describe('Jest presets', () => {
7-
test.each([defaultPreset, defaultEsmPreset])('should return the correct jest config', (preset) => {
8-
expect(preset).toMatchSnapshot();
7+
test.each([defaultPreset, defaultEsmPreset])(
8+
'should return the correct jest config with legacy preset config',
9+
(preset) => {
10+
expect(preset).toMatchSnapshot();
11+
},
12+
);
13+
14+
it('should return jest config with CJS preset creator function without options', () => {
15+
expect(createCjsPreset()).toMatchSnapshot();
16+
});
17+
18+
it('should return jest config with CJS preset creator function with options', () => {
19+
expect(
20+
createCjsPreset({
21+
diagnostics: false,
22+
}),
23+
).toMatchSnapshot();
24+
});
25+
26+
it('should return jest config with ESM preset creator function without options', () => {
27+
expect(createEsmPreset()).toMatchSnapshot();
28+
});
29+
30+
it('should return jest config with ESM preset creator function with options', () => {
31+
expect(
32+
createEsmPreset({
33+
diagnostics: false,
34+
}),
35+
).toMatchSnapshot();
936
});
1037

1138
test('should have the correct types which come from `ts-jest`', () => {

‎src/presets/index.ts

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@@ -40,3 +40,5 @@ const defaultEsmPreset = {
4040
};
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4242
export { defaultPreset, defaultEsmPreset, defaultTransformerOptions };
43+
export { createCjsPreset } from './create-cjs-preset';
44+
export { createEsmPreset } from './create-esm-preset';

‎src/presets/utils.ts

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@@ -0,0 +1,11 @@
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import type { Config } from 'jest';
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3+
import snapshotSerializers from '../serializers';
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5+
type BasePresetConfig = Required<Pick<Config, 'testEnvironment' | 'moduleFileExtensions' | 'snapshotSerializers'>>;
6+
7+
export const basePresetConfig: BasePresetConfig = {
8+
testEnvironment: 'jsdom',
9+
moduleFileExtensions: ['ts', 'html', 'js', 'json', 'mjs'],
10+
snapshotSerializers,
11+
};

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