fix tests

Author: nirinchev

tests/unit/telemetry.test.ts

@@ -307,7 +307,7 @@ describe("Telemetry", () => {
             });
 
             afterEach(() => {
-                process.env.DO_NOT_TRACK = originalEnv;
+                delete process.env.DO_NOT_TRACK;
             });
 
             it("should not send events", async () => {
@@ -332,6 +332,10 @@ describe("Telemetry", () => {
             );
         });
 
+        afterEach(() => {
+            config.telemetry = "enabled";
+        });
+
         const testCases: {
             connectionString: string;
             isAtlas: boolean;
@@ -388,6 +392,7 @@ describe("Telemetry", () => {
                         getRawMachineId: () => Promise.resolve(machineId),
                     });
                 }
+
                 await session.connectToMongoDB(testCase.connectionString, config.connectOptions, telemetry);
                 expect(session.serviceProvider).toBeDefined();