feat(cli): Support Jest project initialization

Author: Romakita

packages/cli-plugin-jest/src/hooks/JestInitHook.ts

@@ -1,23 +1,79 @@
 import {IInitCmdContext} from "@tsed/cli";
-import {Inject, Injectable, OnExec, ProjectPackageJson, Renderer} from "@tsed/cli-core";
+import {
+  Inject,
+  Injectable,
+  OnExec,
+  ProjectPackageJson,
+  RootRendererService,
+  ScriptsRendererService,
+  SrcRendererService
+} from "@tsed/cli-core";
+import {join} from "path";
+import {TEMPLATE_DIR} from "../utils/templateDir";
 
 @Injectable()
 export class JestInitHook {
   @Inject()
   protected packageJson: ProjectPackageJson;
 
+  @Inject()
+  protected srcRenderer: SrcRendererService;
+
+  @Inject()
+  protected rootRenderer: RootRendererService;
+
+  @Inject()
+  protected scriptsRenderer: ScriptsRendererService;
+
   @OnExec("init")
-  onInitExec(ctx: IInitCmdContext) {}
+  onInitExec(ctx: IInitCmdContext) {
+    this.addScripts(ctx);
+    this.addDependencies(ctx);
+    this.addDevDependencies(ctx);
+
+    return [
+      {
+        title: "Generate files for mocha",
+        task: (ctx: any) => {
+          return this.rootRenderer.renderAll([
+            "init/jest.config.js.hbs"
+          ], ctx, {
+            templateDir: TEMPLATE_DIR
+          });
+        }
+      },
+      {
+        title: "Generate scripts files for mocha",
+        task: (ctx: any) => {
+          return this.scriptsRenderer.renderAll(
+            [
+              "init/setup.jest.js.hbs"
+            ], ctx, {
+              templateDir: TEMPLATE_DIR,
+              rootDir: join(this.scriptsRenderer.rootDir, "jest")
+            });
+        }
+      }
+    ];
+  }
 
   addScripts(ctx: IInitCmdContext) {
-    this.packageJson.addScripts({});
+    this.packageJson.addScripts({
+      test: "yarn test:lint && yarn test:coverage",
+      "test:unit": "cross-env NODE_ENV=test jest",
+      "test:coverage": "yarn test:unit"
+    });
   }
 
   addDependencies(ctx: IInitCmdContext) {
     this.packageJson.addDependencies({}, ctx);
   }
 
   addDevDependencies(ctx: IInitCmdContext) {
-    this.packageJson.addDevDependencies({}, ctx);
+    this.packageJson.addDevDependencies({
+      "@types/jest": "latest",
+      "jest": "latest",
+      "ts-jest": "latest"
+    }, ctx);
   }
 }

packages/cli-plugin-jest/templates/init/jest.config.js.hbs

@@ -0,0 +1,60 @@
+// For a detailed explanation regarding each configuration property, visit:
+// https://jestjs.io/docs/en/configuration.html
+
+module.exports = {
+  // Automatically clear mock calls and instances between every test
+  clearMocks: true,
+
+  // Indicates whether the coverage information should be collected while executing the test
+  collectCoverage: true,
+
+  // An array of glob patterns indicating a set of files for which coverage information should be collected
+  // collectCoverageFrom: undefined,
+
+  // The directory where Jest should output its coverage files
+  coverageDirectory: 'coverage',
+
+  // An array of regexp pattern strings used to skip coverage collection
+  coveragePathIgnorePatterns: [
+    'index.ts',
+    '/node_modules/'
+  ],
+
+  // An object that configures minimum threshold enforcement for coverage results
+  coverageThreshold: {
+    global: {
+      'branches': 70,
+      'functions': 70,
+      'lines': 70,
+      'statements': 70
+    }
+  },
+
+  // An array of file extensions your modules use
+  moduleFileExtensions: [
+    'js',
+    'json',
+    'jsx',
+    'ts',
+    'tsx',
+    'node'
+  ],
+
+  // The test environment that will be used for testing
+  testEnvironment: 'node',
+
+  // The glob patterns Jest uses to detect test files
+  testMatch: [
+    '**/__tests__/**/*.[jt]s?(x)',
+    '**/?(*.)+(spec|test).[tj]s?(x)'
+  ],
+  // A map from regular expressions to paths to transformers
+  transform: {
+    '\\.(ts)$': 'ts-jest'
+  },
+
+  // The paths to modules that run some code to configure or set up the testing environment before each test
+  setupFiles: [
+    '<rootDir>/scripts/jest/setup.jest.js'
+  ]
+}

packages/cli-plugin-jest/templates/init/setup.jest.js.hbs

@@ -0,0 +1 @@
+process.env.TS_TEST = true

packages/cli/src/services/Features.ts

@@ -164,8 +164,7 @@ registerProvider({
               devDependencies: {
                 "@tsed/cli-plugin-jest": cliVersion
               }
-            },
-            disabled: true
+            }
           }
         ]
       },