Tests use ESM again

A bit surprising, given that I had so much trouble with decorators and the previous configuration. But now it seems to work well together (ESM + TC39 decorators)

Signed-off-by: Mike Lischke <mike@lischke-online.de>

.vscode/launch.json

@@ -9,6 +9,8 @@
             "runtimeArgs": [
                 "--experimental-vm-modules",
                 "--no-warnings",
+                "--loader",
+                "ts-node/esm",
                 "${workspaceRoot}/node_modules/.bin/jest",
                 "${file}",
                 "--no-coverage",

jest.config.ts

@@ -108,7 +108,7 @@ const config: Config = {
         "node",
     ],
 
-    //extensionsToTreatAsEsm: [".ts"],
+    extensionsToTreatAsEsm: [".ts"],
 
     // A map from regular expressions to module names or to arrays of module names that allow to stub out resources
     // with a single module
@@ -127,7 +127,7 @@ const config: Config = {
     // notifyMode: "failure-change",
 
     // A preset that is used as a base for Jest's configuration
-    preset: "ts-jest",
+    //preset: "ts-jest/presets/default-esm",
 
     // Run tests from one or more projects
     // projects: undefined,
@@ -152,7 +152,7 @@ const config: Config = {
 
     // A list of paths to directories that Jest should use to search for files in
     roots: [
-        "tests",
+        "./tests",
     ],
 
     // Allows you to use a custom runner instead of Jest's default test runner
@@ -210,6 +210,7 @@ const config: Config = {
     transform: {
         "^.+\\.ts$": ["ts-jest", {
             tsconfig: "./tests/tsconfig.json",
+            useESM: true,
         }],
     },
 

package.json

@@ -42,9 +42,9 @@
         "prepublishOnly": "npm run build && npm run test",
         "hello-world": "ts-node src/runner ./examples/HelloWorld.ts",
         "build": "tsc",
-        "test": "jest --testMatch [ \"**/tests/**/*.spec.ts\" ] --no-coverage --watchAll=false --max-worker=1",
-        "test-ci": "jest --testMatch [ \"**/tests/**/*.spec.ts\" ] --no-coverage --watchAll=false --silent",
-        "test-coverage": "jest  --testMatch [ \"**/tests/**/*.spec.ts\" ] --coverage --silent",
+        "test": "jest --testMatch [ \"**/tests/**/*.spec.ts\" ] --no-coverage --watchAll=false --max-worker=10",
+        "test-ci": "npm run test -- --silent",
+        "test-coverage": "npm run test -- --coverage --silent",
         "lint": "eslint \"./src/**/*.ts\""
     }
 }

tests/java/io/Unicode.spec.ts

@@ -4,12 +4,12 @@
  */
 
 import { S } from "../../../src/templates.js";
-import { runTest } from "../../test-helpers.js";
+import { Unicode } from "../../jdk/java/io/Unicode.js";
 
 describe("Unicode Tests", () => {
-    xit("Base", async () => {
+    xit("Base", () => {
         // For now disabled, as we need a text encoder with more than just UTF-8.
-        await runTest("tests/jdk/java/io/Unicode.ts", "main", [[S`utf-16le`, S`little`, S`false`]]);
+        Unicode.main([S`utf-16le`, S`little`, S`false`]);
     });
 
 });

tests/java/lang/Appendable.spec.ts

@@ -3,10 +3,10 @@
  * Licensed under the MIT License. See License.txt in the project root for license information.
  */
 
-import { runTest } from "../../test-helpers.js";
+import { Basic } from "../../jdk/java/lang/Appendable/Basic.js";
 
 describe("Tests", () => {
-    it("Basic", async () => {
-        await runTest("tests/jdk/java/lang/Appendable/Basic.ts", "main");
+    it("Basic", () => {
+        Basic.main([]);
     });
 });

tests/java/util/List.spec.ts

@@ -14,7 +14,7 @@ describe("List Tests", () => {
         testNG.run(ListDefaults);
     });
 
-    describe.only("JDK ListFactories", () => {
+    describe("JDK ListFactories", () => {
         const testNG = new TestNG();
         testNG.run(ListFactories);
     });

tests/tsconfig.json

@@ -1,8 +1,8 @@
 {
     "compilerOptions": {
-        "moduleResolution": "Node",
+        "moduleResolution": "Node16",
         "target": "ES2022",
-        "module": "CommonJS",
+        "module": "Node16",
         "noEmit": true,
         "declaration": true,
         "sourceMap": true,