test: added test for qp-encoded sha-precompute selector

packages/circuits/tests/email-verifier-with-qp-encoded-sha-precompute-selector.test.ts

@@ -0,0 +1,49 @@
+import fs from "fs";
+import { wasm as wasm_tester } from "circom_tester";
+import path from "path";
+import { DKIMVerificationResult } from "@zk-email/helpers/src/dkim";
+import { generateEmailVerifierInputsFromDKIMResult } from "@zk-email/helpers/src/input-generators";
+import { verifyDKIMSignature } from "@zk-email/helpers/src/dkim";
+
+describe("EmailVerifier : With soft line breaks", () => {
+    jest.setTimeout(30 * 60 * 1000); // 30 minutes
+
+    let dkimResult: DKIMVerificationResult;
+    let circuit: any;
+
+    beforeAll(async () => {
+        const rawEmail = fs.readFileSync(
+            path.join(__dirname, "./test-emails/lorem_ipsum.eml"),
+            "utf8"
+        );
+        dkimResult = await verifyDKIMSignature(rawEmail);
+
+        circuit = await wasm_tester(
+            path.join(
+                __dirname,
+                "./test-circuits/email-verifier-with-soft-line-breaks-test.circom"
+            ),
+            {
+                recompile: true,
+                include: path.join(__dirname, "../../../node_modules"),
+                output: path.join(__dirname, "./compiled-test-circuits"),
+            }
+        );
+    });
+
+    it("should verify email with soft line break in sha precompute selector", async function () {
+        const emailVerifierInputs = generateEmailVerifierInputsFromDKIMResult(
+            dkimResult,
+            {
+                maxHeadersLength: 640,
+                maxBodyLength: 1408,
+                ignoreBodyHashCheck: false,
+                removeSoftLineBreaks: true,
+                shaPrecomputeSelector: "imperdiet neque.",
+            }
+        );
+
+        const witness = await circuit.calculateWitness(emailVerifierInputs);
+        await circuit.checkConstraints(witness);
+    });
+});