refactor: create temporary directories in tests using os.tmpdir() for consistency. (#9473)

Author: taeold

src/deploy/functions/runtimes/supported/supported.spec.ts

@@ -18,6 +18,10 @@ describe("supported runtimes", () => {
       expect(supported.isRuntime("nodejs20")).to.be.true;
     });
 
+    it("identifies nodejs24 as a valid runtime", () => {
+      expect(supported.isRuntime("nodejs24")).to.be.true;
+    });
+
     it("identifies invalid runtimes", () => {
       expect(supported.isRuntime("prolog1")).to.be.false;
     });
@@ -64,5 +68,22 @@ describe("supported runtimes", () => {
           "details on the lifecycle policy",
       );
     });
+
+    it("does not warn for nodejs24 before deprecation date", () => {
+      supported.guardVersionSupport("nodejs24", new Date("2027-01-01"));
+      expect(logLabeledWarning).to.not.have.been.called;
+    });
+
+    it("warns for nodejs24 leading up to deprecation", () => {
+      supported.guardVersionSupport("nodejs24", new Date("2028-04-01"));
+      expect(logLabeledWarning).to.have.been.calledWith(
+        "functions",
+        "Runtime Node.js 24 will be deprecated on 2028-04-30 and will be " +
+          "decommissioned on 2028-10-31, after which you will not be able to " +
+          "deploy without upgrading. Consider upgrading now to avoid disruption. See " +
+          "https://cloud.google.com/functions/docs/runtime-support for full " +
+          "details on the lifecycle policy",
+      );
+    });
   });
 });