test(run): manage AWS environment variables during DynamoDB local tests

Author: m-houston

packages/ddb-publisher/src/__tests__/run.test.ts

@@ -233,7 +233,14 @@ describe("runPublisher", () => {
     fileStore.validateConfigStore.mockReturnValue({ ok: true, issues: [] });
     audit.auditBeforeLoad.mockResolvedValue({ blockingRecords: [] });
 
+    const originalAwsRegion = process.env.AWS_REGION;
+    const originalAwsAccessKeyId = process.env.AWS_ACCESS_KEY_ID;
+    const originalAwsSecretAccessKey = process.env.AWS_SECRET_ACCESS_KEY;
+
     process.env.SUPPLIER_CONFIG_DDB_ENDPOINT_URL = "http://127.0.0.1:8000";
+    delete process.env.AWS_REGION;
+    delete process.env.AWS_ACCESS_KEY_ID;
+    delete process.env.AWS_SECRET_ACCESS_KEY;
 
     try {
       await runPublisher({
@@ -254,6 +261,24 @@ describe("runPublisher", () => {
       });
     } finally {
       delete process.env.SUPPLIER_CONFIG_DDB_ENDPOINT_URL;
+
+      if (originalAwsRegion === undefined) {
+        delete process.env.AWS_REGION;
+      } else {
+        process.env.AWS_REGION = originalAwsRegion;
+      }
+
+      if (originalAwsAccessKeyId === undefined) {
+        delete process.env.AWS_ACCESS_KEY_ID;
+      } else {
+        process.env.AWS_ACCESS_KEY_ID = originalAwsAccessKeyId;
+      }
+
+      if (originalAwsSecretAccessKey === undefined) {
+        delete process.env.AWS_SECRET_ACCESS_KEY;
+      } else {
+        process.env.AWS_SECRET_ACCESS_KEY = originalAwsSecretAccessKey;
+      }
     }
   });