integration: improve metamask provider mock

integration/src/integration.ts

@@ -21,10 +21,6 @@ import { terraTests } from "./terra";
 import { kavaTests } from "./kava";
 import { WalletSuite } from "./wallets/suite";
 
-import { ethereum } from "./wallets/mocks/@metamask/detect-provider";
-
-jest.mock("@metamask/detect-provider", () => async () => Promise.resolve(ethereum));
-
 /**
  * We run all the integration tests against every device, even though some
  * devices might not support a given Coin mixin. Tests in the various suites

integration/src/wallets/__mocks__/@metamask/detect-provider.ts

@@ -0,0 +1,24 @@
+export default async function detectEthereumProvider() {
+  return {
+    request: jest.fn(({ method, params }: any) => {
+      switch (method) {
+        case "eth_accounts":
+        case "eth_requestAccounts":
+          return ["0x3f2329C9ADFbcCd9A84f52c906E936A42dA18CB8"];
+        case "personal_sign":
+          const [message] = params;
+
+          if (message === '48656c6c6f20576f726c64')
+            return '0x29f7212ecc1c76cea81174af267b67506f754ea8c73f144afa900a0d85b24b21319621aeb062903e856352f38305710190869c3ce5a1425d65ef4fa558d0fc251b'
+
+          throw new Error('unknown message');
+        case "eth_sendTransaction":
+          const [{ to }] = params;
+
+          return `txHash-${to}`;
+        default:
+          throw new Error(`ethereum: Unkown method ${method}`);
+      }
+    })
+  }
+}

integration/src/wallets/metamask.ts

@@ -1,3 +1,5 @@
+jest.mock("@metamask/detect-provider");
+
 import * as core from "@shapeshiftoss/hdwallet-core";
 import * as metamask from "@shapeshiftoss/hdwallet-metamask";