fix: allow ESM preset to be used in monorepo structure (#942)

Because `<rootDir>` is not workspace-root directory when it has a monorepo structure like Nrwl/Nx, `<rootDir>/node_modules` is not compatible with that.

examples/example-app-v12-monorepo/.editorconfig

@@ -0,0 +1,16 @@
+# Editor configuration, see https://editorconfig.org
+root = true
+
+[*]
+charset = utf-8
+indent_style = space
+indent_size = 2
+insert_final_newline = true
+trim_trailing_whitespace = true
+
+[*.ts]
+quote_type = single
+
+[*.md]
+max_line_length = off
+trim_trailing_whitespace = false

examples/example-app-v12-monorepo/.gitignore

@@ -0,0 +1,45 @@
+# See http://help.github.com/ignore-files/ for more about ignoring files.
+
+# compiled output
+/dist
+/tmp
+/out-tsc
+# Only exists if Bazel was run
+/bazel-out
+
+# dependencies
+/node_modules
+
+# profiling files
+chrome-profiler-events*.json
+
+# IDEs and editors
+/.idea
+.project
+.classpath
+.c9/
+*.launch
+.settings/
+*.sublime-workspace
+
+# IDE - VSCode
+.vscode/*
+!.vscode/settings.json
+!.vscode/tasks.json
+!.vscode/launch.json
+!.vscode/extensions.json
+.history/*
+
+# misc
+/.sass-cache
+/connect.lock
+/coverage
+/libpeerconnection.log
+npm-debug.log
+yarn-error.log
+testem.log
+/typings
+
+# System Files
+.DS_Store
+Thumbs.db

examples/example-app-v12-monorepo/README.md

@@ -0,0 +1,31 @@
+# Example
+
+This is an example app using `jest-preset-angular`. It is not supposed to be a boilerplate for an Angular app tested with jest, but could be used as a rough reference for configuration.
+
+The jest configuration itself is located in the `projects/<appName>/jest.config.js`.
+
+This project was generated with [Angular CLI](https://github.com/angular/angular-cli) version 12.0.0.
+
+## Running unit tests
+
+Run `yarn test` or `npm test` to execute the unit tests via [Jest](https://jestjs.io).
+
+## Running end-to-end tests
+
+End-to-end are not setup in this project.
+
+## Development server
+
+Run `ng serve` for a dev server. Navigate to `http://localhost:4200/`. The app will automatically reload if you change any of the source files.
+
+## Code scaffolding
+
+Run `ng generate component component-name` to generate a new component. You can also use `ng generate directive|pipe|service|class|guard|interface|enum|module`.
+
+## Build
+
+Run `ng build` to build the project. The build artifacts will be stored in the `dist/` directory. Use the `--prod` flag for a production build.
+
+## Further help
+
+To get more help on the Angular CLI use `ng help` or go check out the [Angular CLI Overview and Command Reference](https://angular.io/cli) page.

examples/example-app-v12-monorepo/angular.json

@@ -0,0 +1,173 @@
+{
+  "$schema": "./node_modules/@angular/cli/lib/config/schema.json",
+  "version": 1,
+  "cli": {
+    "packageManager": "npm"
+  },
+  "newProjectRoot": "projects",
+  "projects": {
+    "app1": {
+      "projectType": "application",
+      "schematics": {
+        "@schematics/angular:application": {
+          "strict": true
+        }
+      },
+      "root": "projects/app1",
+      "sourceRoot": "projects/app1/src",
+      "prefix": "app",
+      "architect": {
+        "build": {
+          "builder": "@angular-devkit/build-angular:browser",
+          "options": {
+            "outputPath": "dist/app1",
+            "index": "projects/app1/src/index.html",
+            "main": "projects/app1/src/main.ts",
+            "polyfills": "projects/app1/src/polyfills.ts",
+            "tsConfig": "projects/app1/tsconfig.app.json",
+            "assets": [
+              "projects/app1/src/favicon.ico",
+              "projects/app1/src/assets"
+            ],
+            "styles": [
+              "projects/app1/src/styles.css"
+            ],
+            "scripts": []
+          },
+          "configurations": {
+            "production": {
+              "budgets": [
+                {
+                  "type": "initial",
+                  "maximumWarning": "500kb",
+                  "maximumError": "1mb"
+                },
+                {
+                  "type": "anyComponentStyle",
+                  "maximumWarning": "2kb",
+                  "maximumError": "4kb"
+                }
+              ],
+              "fileReplacements": [
+                {
+                  "replace": "projects/app1/src/environments/environment.ts",
+                  "with": "projects/app1/src/environments/environment.prod.ts"
+                }
+              ],
+              "outputHashing": "all"
+            },
+            "development": {
+              "buildOptimizer": false,
+              "optimization": false,
+              "vendorChunk": true,
+              "extractLicenses": false,
+              "sourceMap": true,
+              "namedChunks": true
+            }
+          },
+          "defaultConfiguration": "production"
+        },
+        "serve": {
+          "builder": "@angular-devkit/build-angular:dev-server",
+          "configurations": {
+            "production": {
+              "browserTarget": "app1:build:production"
+            },
+            "development": {
+              "browserTarget": "app1:build:development"
+            }
+          },
+          "defaultConfiguration": "development"
+        },
+        "extract-i18n": {
+          "builder": "@angular-devkit/build-angular:extract-i18n",
+          "options": {
+            "browserTarget": "app1:build"
+          }
+        }
+      }
+    },
+    "app2": {
+      "projectType": "application",
+      "schematics": {
+        "@schematics/angular:application": {
+          "strict": true
+        }
+      },
+      "root": "projects/app2",
+      "sourceRoot": "projects/app2/src",
+      "prefix": "app",
+      "architect": {
+        "build": {
+          "builder": "@angular-devkit/build-angular:browser",
+          "options": {
+            "outputPath": "dist/app2",
+            "index": "projects/app2/src/index.html",
+            "main": "projects/app2/src/main.ts",
+            "polyfills": "projects/app2/src/polyfills.ts",
+            "tsConfig": "projects/app2/tsconfig.app.json",
+            "assets": [
+              "projects/app2/src/favicon.ico",
+              "projects/app2/src/assets"
+            ],
+            "styles": [
+              "projects/app2/src/styles.css"
+            ],
+            "scripts": []
+          },
+          "configurations": {
+            "production": {
+              "budgets": [
+                {
+                  "type": "initial",
+                  "maximumWarning": "500kb",
+                  "maximumError": "1mb"
+                },
+                {
+                  "type": "anyComponentStyle",
+                  "maximumWarning": "2kb",
+                  "maximumError": "4kb"
+                }
+              ],
+              "fileReplacements": [
+                {
+                  "replace": "projects/app2/src/environments/environment.ts",
+                  "with": "projects/app2/src/environments/environment.prod.ts"
+                }
+              ],
+              "outputHashing": "all"
+            },
+            "development": {
+              "buildOptimizer": false,
+              "optimization": false,
+              "vendorChunk": true,
+              "extractLicenses": false,
+              "sourceMap": true,
+              "namedChunks": true
+            }
+          },
+          "defaultConfiguration": "production"
+        },
+        "serve": {
+          "builder": "@angular-devkit/build-angular:dev-server",
+          "configurations": {
+            "production": {
+              "browserTarget": "app2:build:production"
+            },
+            "development": {
+              "browserTarget": "app2:build:development"
+            }
+          },
+          "defaultConfiguration": "development"
+        },
+        "extract-i18n": {
+          "builder": "@angular-devkit/build-angular:extract-i18n",
+          "options": {
+            "browserTarget": "app2:build"
+          }
+        }
+      }
+    }
+  },
+  "defaultProject": "app1"
+}