test(client-s3): integration for config 'authSchemePreference'

Author: trivikr

clients/client-s3/test/unit/authSchemePreference.spec.ts

@@ -0,0 +1,48 @@
+import { describe, expect, test as it } from "vitest";
+
+import { S3 } from "../../src/S3";
+import "../../../../packages/signature-v4-crt/src/index";
+
+describe("authSchemePreference", () => {
+  const credentials = { accessKeyId: "key", secretAccessKey: "secret" };
+  const Bucket = `arn:aws:s3-outposts:us-west-2:123456789012:outpost/op-01234567890123456/accesspoint/abc-111`;
+  const Key = "key";
+  const Body = "body";
+
+  const SIGNATURE_PREFIX = {
+    sigv4: "AWS4-HMAC-SHA256",
+    sigv4a: "AWS4-ECDSA-P256-SHA256",
+  };
+
+  const interceptorMiddleware = (next, context) => (args) => {
+    // middleware intercept the request and return it early
+    const request = args.request;
+    return Promise.resolve({
+      output: {
+        $metadata: { attempts: 0, httpStatusCode: 200 },
+        request,
+        context,
+      },
+      response: {},
+    });
+  };
+
+  const getAuthorizationHeader = (headers: Record<string, string>) =>
+    headers["authorization"] || headers["Authorization"];
+
+  it.each([
+    ["sigv4a", undefined],
+    ["sigv4a", ["sigv3"]],
+    ["sigv4", ["sigv4"]],
+    ["sigv4", ["sigv4", "sigv4a"]],
+    ["sigv4a", ["sigv4a"]],
+    ["sigv4a", ["sigv4a", "sigv4"]],
+  ])("selects '%s' when authSchemePreference: %s", async (output, authSchemePreference) => {
+    const client = new S3({ credentials, authSchemePreference });
+    client.middlewareStack.add(interceptorMiddleware, { step: "finalizeRequest", priority: "low" });
+    const result: any = await client.putObject({ Bucket, Key, Body });
+
+    const authorizationHeader = getAuthorizationHeader(result.request.headers);
+    expect(authorizationHeader.startsWith(SIGNATURE_PREFIX[output])).toBe(true);
+  });
+});