fix test

packages/babel-core/test/config-ts.js

@@ -7,41 +7,51 @@ import semver from "semver";
 const __dirname = path.dirname(fileURLToPath(import.meta.url));
 const require = createRequire(import.meta.url);
 
-describe("@babel/core config with ts", () => {
-  it("should work with simple .cts", () => {
-    const config = loadPartialConfigSync({
-      configFile: path.join(
-        __dirname,
-        "fixtures/config-ts/simple-cts/babel.config.cts",
-      ),
-    });
+// We skip older versions of node testing for two reasons.
+// 1. ts-node does not support the old version of node.
+// 2. In the old version of node, jest has been registered in `require.extensions`, which will cause babel to disable the transforming as expected.
 
-    expect(config.options.targets).toMatchInlineSnapshot(`
+describe("@babel/core config with ts [dummy]", () => {
+  it("dummy", () => {
+    expect(1).toBe(1);
+  });
+});
+
+semver.gte(process.version, "12.0.0")
+  ? describe
+  : describe.skip("@babel/core config with ts", () => {
+      it("should work with simple .cts", () => {
+        const config = loadPartialConfigSync({
+          configFile: path.join(
+            __dirname,
+            "fixtures/config-ts/simple-cts/babel.config.cts",
+          ),
+        });
+
+        expect(config.options.targets).toMatchInlineSnapshot(`
       Object {
         "node": "12.0.0",
       }
     `);
-  });
+      });
 
-  it("should throw with invalid .ts register", () => {
-    require.extensions[".ts"] = () => {
-      throw new Error("Not support .ts.");
-    };
-    expect(() => {
-      loadPartialConfigSync({
-        configFile: path.join(
-          __dirname,
-          "fixtures/config-ts/invalid-cts-register/babel.config.cts",
-        ),
+      it("should throw with invalid .ts register", () => {
+        require.extensions[".ts"] = () => {
+          throw new Error("Not support .ts.");
+        };
+        expect(() => {
+          loadPartialConfigSync({
+            configFile: path.join(
+              __dirname,
+              "fixtures/config-ts/invalid-cts-register/babel.config.cts",
+            ),
+          });
+        }).toThrow(/Unexpected identifier.*/);
+        delete require.extensions[".ts"];
       });
-    }).toThrow(/Unexpected identifier.*/);
-    delete require.extensions[".ts"];
-  });
 
-  semver.gte(process.version, "12.0.0")
-    ? it
-    : it.skip("should work with ts-node", async () => {
-        const service = import("ts-node").register({
+      it("should work with ts-node", async () => {
+        const service = eval("import('ts-node')").register({
           experimentalResolver: true,
           compilerOptions: {
             module: "CommonJS",
@@ -69,4 +79,4 @@ describe("@babel/core config with ts", () => {
       }
     `);
       });
-});
+    });