From 244c7e54806ca9e2e475b5d69a955a8748d5adf3 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Rog=C3=A9rio=20Rodrigues=20de=20Alc=C3=A2ntara?=
 <rogerio.alcantara@gmail.com>
Date: Mon, 3 Jun 2024 10:01:56 -0300
Subject: [PATCH] chore(apps/app): Setup SWC tests compilation
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

In order to speed up test executions.

hyperfine --warmup 5 --prepare "nx reset && nx clear-cache" \
                    --runs 100 "nx run-many -t lint"
  Time (mean ± σ):  2.751s ±  0.040s  [User: 3.329s, System: 0.220s]
  Range (min…max):  2.692s …  2.861s  100 runs

hyperfine --warmup 5 --prepare "nx reset && nx clear-cache" \
                    --runs 100 "nx run-many -t build"
  Time (mean ± σ):  1.785s ±  0.017s  [User: 1.751s, System: 0.139s]
  Range (min…max):  1.750s …  1.834s  100 runs

hyperfine --warmup 5 --prepare "nx reset && nx clear-cache" \
                    --runs 100 "nx run-many -t test"
  Time (mean ± σ):  1.657s ±  0.006s  [User: 0.800s, System: 0.139s]
  Range (min…max):  1.623s …  1.679s  100 runs

More:
- https://docs.nestjs.com/recipes/swc#monorepo
- https://github.com/nrwl/nx/issues/11289#issuecomment-1824243618
- https://github.com/jestjs/jest/issues/9430
- https://npmjs.com/package/jest_workaround
---
 apps/app/jest.config.js     | 40 ++++++++++++++++++++++---------------
 apps/app/tsconfig.spec.json |  2 +-
 package.json                |  1 +
 yarn.lock                   | 18 ++++++++++++++++-
 4 files changed, 43 insertions(+), 18 deletions(-)

diff --git a/apps/app/jest.config.js b/apps/app/jest.config.js
index 83e5516..ff2b403 100644
--- a/apps/app/jest.config.js
+++ b/apps/app/jest.config.js
@@ -1,25 +1,33 @@
-let jestConfigObject = {
+module.exports = {
   displayName: 'app',
   preset: '../../jest.preset.js',
   testEnvironment: 'node',
   transform: {
-    '^.+\\.[tj]s$': ['ts-jest', { tsconfig: '<rootDir>/tsconfig.spec.json' }]
-  },
-  moduleFileExtensions: ['ts', 'js', 'html'],
-  coverageDirectory: '../../coverage/apps/app'
-}
-
-if (process.env.NODE_ENV === 'CI' || process.env.CI === 'true') {
-  jestConfigObject.transform = {
     '^.+\\.[tj]s$': [
-      'ts-jest',
+      '@swc/jest',
       {
-        tsconfig: '<rootDir>/tsconfig.spec.json',
-        isolatedModules: true,
-        diagnostics: false
+        sourceMaps: true,
+        module: {
+          type: 'commonjs',
+          strict: true,
+          strictMode: true
+        },
+        jsc: {
+          parser: {
+            syntax: 'typescript',
+            decorators: true,
+            dynamicImport: true
+          },
+          transform: {
+            legacyDecorator: true,
+            decoratorMetadata: true
+          },
+          target: 'es2021'
+        },
+        minify: false
       }
     ]
-  }
+  },
+  moduleFileExtensions: ['ts', 'tsx', 'js', 'jsx', 'json', 'node'],
+  coverageDirectory: '../../coverage/apps/app'
 }
-
-module.exports = jestConfigObject
diff --git a/apps/app/tsconfig.spec.json b/apps/app/tsconfig.spec.json
index c49cfea..498e808 100644
--- a/apps/app/tsconfig.spec.json
+++ b/apps/app/tsconfig.spec.json
@@ -11,4 +11,4 @@
     "src/**/*.spec.ts",
     "src/**/*.d.ts"
   ]
-}
+}
\ No newline at end of file
diff --git a/package.json b/package.json
index 94ec279..7d2c991 100644
--- a/package.json
+++ b/package.json
@@ -38,6 +38,7 @@
     "@swc/cli": "^0.3.12",
     "@swc/core": "^1.5.24",
     "@swc/helpers": "^0.5.11",
+    "@swc/jest": "^0.2.36",
     "@types/jest": "^29.5.12",
     "@types/node": "~20.14.1",
     "@typescript-eslint/eslint-plugin": "^7.12.0",
diff --git a/yarn.lock b/yarn.lock
index f44edcf..648feec 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1234,6 +1234,13 @@
     slash "^3.0.0"
     strip-ansi "^6.0.0"
 
+"@jest/create-cache-key-function@^29.7.0":
+  version "29.7.0"
+  resolved "https://registry.yarnpkg.com/@jest/create-cache-key-function/-/create-cache-key-function-29.7.0.tgz#793be38148fab78e65f40ae30c36785f4ad859f0"
+  integrity sha512-4QqS3LY5PBmTRHj9sAg1HLoPzqAI0uOX6wI/TRqHIcOxlFidy6YEmCQJk6FSZjNLGCeubDMfmkWL+qaLKhSGQA==
+  dependencies:
+    "@jest/types" "^29.6.3"
+
 "@jest/environment@^29.7.0":
   version "29.7.0"
   resolved "https://registry.yarnpkg.com/@jest/environment/-/environment-29.7.0.tgz#24d61f54ff1f786f3cd4073b4b94416383baf2a7"
@@ -2061,6 +2068,15 @@
   dependencies:
     tslib "^2.4.0"
 
+"@swc/jest@^0.2.36":
+  version "0.2.36"
+  resolved "https://registry.yarnpkg.com/@swc/jest/-/jest-0.2.36.tgz#2797450a30d28b471997a17e901ccad946fe693e"
+  integrity sha512-8X80dp81ugxs4a11z1ka43FPhP+/e+mJNXJSxiNYk8gIX/jPBtY4gQTrKu/KIoco8bzKuPI5lUxjfLiGsfvnlw==
+  dependencies:
+    "@jest/create-cache-key-function" "^29.7.0"
+    "@swc/counter" "^0.1.3"
+    jsonc-parser "^3.2.0"
+
 "@swc/types@^0.1.7":
   version "0.1.7"
   resolved "https://registry.yarnpkg.com/@swc/types/-/types-0.1.7.tgz#ea5d658cf460abff51507ca8d26e2d391bafb15e"
@@ -6235,7 +6251,7 @@ jsonc-parser@3.2.0:
   resolved "https://registry.yarnpkg.com/jsonc-parser/-/jsonc-parser-3.2.0.tgz#31ff3f4c2b9793f89c67212627c51c6394f88e76"
   integrity sha512-gfFQZrcTc8CnKXp6Y4/CBT3fTc0OVuDofpre4aEeEpSBPV5X5v4+Vmx+8snU7RLPrNHPKSgLxGo9YuQzz20o+w==
 
-jsonc-parser@3.2.1:
+jsonc-parser@3.2.1, jsonc-parser@^3.2.0:
   version "3.2.1"
   resolved "https://registry.yarnpkg.com/jsonc-parser/-/jsonc-parser-3.2.1.tgz#031904571ccf929d7670ee8c547545081cb37f1a"
   integrity sha512-AilxAyFOAcK5wA1+LeaySVBrHsGQvUFCDWXKpZjzaL0PqW+xfBOttn8GNtWKFWqneyMZj41MWF9Kl6iPWLwgOA==