🎉 mise en place

.gas-snapshot

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+SnapshotTest:test((bytes,bytes,uint256,uint256,uint256)) (runs: 256, μ: 407727, ~: 408263)

.github/workflows/test.yaml

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+name: test
+on:
+  push:
+    branches: [main]
+  pull_request:
+  workflow_dispatch:
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          submodules: recursive
+      - uses: foundry-rs/foundry-toolchain@v1
+      - run: for i in {1..16}; do forge snapshot --force | grep runs; done

.gitignore

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+# foundry
+cache/
+out/
+!/broadcast
+/broadcast/*/31337/
+/broadcast/**/dry-run/
+/broadcast/**/run-latest.json
+docs/
+
+.env
+.vscode/
+.DS_Store
+*.log

.gitmodules

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+[submodule "lib/webauthn-sol"]
+	path = lib/webauthn-sol
+	url = https://github.com/base-org/webauthn-sol

foundry.toml

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+[profile.default]
+isolate = true
+
+[fmt]
+tab_width = 2
+sort_imports = true
+bracket_spacing = true
+number_underscore = "thousands"

test/Snapshot.t.sol

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+// SPDX-License-Identifier: AGPL-3.0
+pragma solidity ^0.8.0;
+
+import { Test } from "forge-std/Test.sol";
+
+import { Utils, WebAuthnInfo } from "webauthn-sol/../test/Utils.sol";
+import { WebAuthn } from "webauthn-sol/WebAuthn.sol";
+
+contract SnapshotTest is Test {
+  using Utils for uint256;
+  using Utils for bytes32;
+
+  uint256 internal constant PRIVATE_KEY = uint256(0x03d99692017473e2d631945a812607b23269d85721e0f370b8d3e7d29a874fd2);
+  PublicKey public PUBLIC_KEY = abi.decode(
+    hex"1c05286fe694493eae33312f2d2e0d0abeda8db76238b7a204be1fb87f54ce4228fef61ef4ac300f631657635c28e59bfb2fe71bce1634c81c65642042f6dc4d",
+    (PublicKey)
+  );
+
+  function test(UserOperation calldata userOp) external {
+    bytes32 userOpHash = keccak256(abi.encode(userOp));
+    WebAuthnInfo memory webauthn = userOpHash.getWebAuthnStruct();
+    (bytes32 r, bytes32 s) = vm.signP256(PRIVATE_KEY, webauthn.messageHash);
+    assertTrue(
+      WebAuthn.verify({
+        challenge: abi.encode(userOpHash),
+        requireUV: false,
+        webAuthnAuth: WebAuthn.WebAuthnAuth({
+          authenticatorData: webauthn.authenticatorData,
+          clientDataJSON: webauthn.clientDataJSON,
+          typeIndex: 1,
+          challengeIndex: 23,
+          r: uint256(r),
+          s: uint256(s).normalizeS()
+        }),
+        x: PUBLIC_KEY.x,
+        y: PUBLIC_KEY.y
+      })
+    );
+  }
+}
+
+struct PublicKey {
+  uint256 x;
+  uint256 y;
+}
+
+struct UserOperation {
+  bytes field0;
+  bytes field1;
+  uint256 field2;
+  uint256 field3;
+  uint256 field4;
+}