diff --git a/package-lock.json b/package-lock.json
index 7e349af7..599704fa 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -46,7 +46,8 @@
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@@ -828,6 +829,18 @@
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+      "resolved": "https://registry.npmjs.org/@jest/schemas/-/schemas-29.6.3.tgz",
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+      },
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@@ -1660,6 +1673,12 @@
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+      "resolved": "https://registry.npmjs.org/@sinclair/typebox/-/typebox-0.27.8.tgz",
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@@ -2489,6 +2508,102 @@
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+      "resolved": "https://registry.npmjs.org/@vitest/runner/-/runner-1.6.0.tgz",
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+      "dev": true,
+      "dependencies": {
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+        "p-limit": "^5.0.0",
+        "pathe": "^1.1.1"
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+      "funding": {
+        "url": "https://opencollective.com/vitest"
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+      "resolved": "https://registry.npmjs.org/p-limit/-/p-limit-5.0.0.tgz",
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+      "resolved": "https://registry.npmjs.org/yocto-queue/-/yocto-queue-1.0.0.tgz",
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+      "funding": {
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+      "resolved": "https://registry.npmjs.org/@vitest/snapshot/-/snapshot-1.6.0.tgz",
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+      "dev": true,
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+    "node_modules/@vitest/spy": {
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+      "resolved": "https://registry.npmjs.org/@vitest/spy/-/spy-1.6.0.tgz",
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+      "dev": true,
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+      "funding": {
+        "url": "https://opencollective.com/vitest"
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+    "node_modules/@vitest/utils": {
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+      "resolved": "https://registry.npmjs.org/@vitest/utils/-/utils-1.6.0.tgz",
+      "integrity": "sha512-21cPiuGMoMZwiOHa2i4LXkMkMkCGzA+MVFV70jRwHo95dL4x/ts5GZhML1QWuy7yfp3WzK3lRvZi3JnXTYqrBw==",
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+        "estree-walker": "^3.0.3",
+        "loupe": "^2.3.7",
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+      "funding": {
+        "url": "https://opencollective.com/vitest"
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@@ -3240,6 +3355,15 @@
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+      "resolved": "https://registry.npmjs.org/acorn-walk/-/acorn-walk-8.3.2.tgz",
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@@ -3345,6 +3469,15 @@
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+      "resolved": "https://registry.npmjs.org/assertion-error/-/assertion-error-1.1.0.tgz",
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+      "dev": true,
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@@ -3592,6 +3725,15 @@
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@@ -3656,6 +3798,24 @@
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+      "resolved": "https://registry.npmjs.org/chai/-/chai-4.4.1.tgz",
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+        "pathval": "^1.1.1",
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@@ -3671,6 +3831,18 @@
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+      "resolved": "https://registry.npmjs.org/check-error/-/check-error-1.0.3.tgz",
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@@ -3990,6 +4162,18 @@
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+      "version": "4.1.3",
+      "resolved": "https://registry.npmjs.org/deep-eql/-/deep-eql-4.1.3.tgz",
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+      },
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+      "version": "29.6.3",
+      "resolved": "https://registry.npmjs.org/diff-sequences/-/diff-sequences-29.6.3.tgz",
+      "integrity": "sha512-EjePK1srD3P08o2j4f0ExnylqRs5B9tJjcp9t1krH2qRi8CCdsYfwe9JgSLurFBWwq4uOlipzfk5fHNvwFKr8Q==",
+      "dev": true,
+      "engines": {
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@@ -4438,6 +4631,15 @@
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@@ -4785,6 +4987,15 @@
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+      "resolved": "https://registry.npmjs.org/get-func-name/-/get-func-name-2.0.2.tgz",
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+      "engines": {
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@@ -5768,6 +5979,22 @@
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+      "resolved": "https://registry.npmjs.org/local-pkg/-/local-pkg-0.5.0.tgz",
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@@ -5902,6 +6129,15 @@
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@@ -5910,6 +6146,15 @@
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+      "resolved": "https://registry.npmjs.org/magic-string/-/magic-string-0.30.10.tgz",
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@@ -6760,6 +7014,38 @@
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+      "dev": true,
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@@ -7423,6 +7709,12 @@
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@@ -7509,6 +7801,12 @@
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@@ -7674,6 +7972,24 @@
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+      "version": "9.0.0",
+      "resolved": "https://registry.npmjs.org/js-tokens/-/js-tokens-9.0.0.tgz",
+      "integrity": "sha512-WriZw1luRMlmV3LGJaR6QOJjWwgLUTf89OwT2lUOyjX2dJGBwgmIkbcz+7WFZjrZM635JOIR517++e/67CP9dQ==",
+      "dev": true
+    },
     "node_modules/sucrase": {
       "version": "3.35.0",
       "resolved": "https://registry.npmjs.org/sucrase/-/sucrase-3.35.0.tgz",
@@ -7870,6 +8186,30 @@
       "resolved": "https://registry.npmjs.org/through/-/through-2.3.8.tgz",
       "integrity": "sha512-w89qg7PI8wAdvX60bMDP+bFoD5Dvhm9oLheFp5O4a2QF0cSBGsBX4qZmadPMvVqlLJBBci+WqGGOAPvcDeNSVg=="
     },
+    "node_modules/tinybench": {
+      "version": "2.8.0",
+      "resolved": "https://registry.npmjs.org/tinybench/-/tinybench-2.8.0.tgz",
+      "integrity": "sha512-1/eK7zUnIklz4JUUlL+658n58XO2hHLQfSk1Zf2LKieUjxidN16eKFEoDEfjHc3ohofSSqK3X5yO6VGb6iW8Lw==",
+      "dev": true
+    },
+    "node_modules/tinypool": {
+      "version": "0.8.4",
+      "resolved": "https://registry.npmjs.org/tinypool/-/tinypool-0.8.4.tgz",
+      "integrity": "sha512-i11VH5gS6IFeLY3gMBQ00/MmLncVP7JLXOw1vlgkytLmJK7QnEr7NXf0LBdxfmNPAeyetukOk0bOYrJrFGjYJQ==",
+      "dev": true,
+      "engines": {
+        "node": ">=14.0.0"
+      }
+    },
+    "node_modules/tinyspy": {
+      "version": "2.2.1",
+      "resolved": "https://registry.npmjs.org/tinyspy/-/tinyspy-2.2.1.tgz",
+      "integrity": "sha512-KYad6Vy5VDWV4GH3fjpseMQ/XU2BhIYP7Vzd0LG44qRWm/Yt2WCOTicFdvmgo6gWaqooMQCawTtILVQJupKu7A==",
+      "dev": true,
+      "engines": {
+        "node": ">=14.0.0"
+      }
+    },
     "node_modules/to-regex-range": {
       "version": "5.0.1",
       "resolved": "https://registry.npmjs.org/to-regex-range/-/to-regex-range-5.0.1.tgz",
@@ -7937,6 +8277,15 @@
         "node": ">= 0.8.0"
       }
     },
+    "node_modules/type-detect": {
+      "version": "4.0.8",
+      "resolved": "https://registry.npmjs.org/type-detect/-/type-detect-4.0.8.tgz",
+      "integrity": "sha512-0fr/mIH1dlO+x7TlcMy+bIDqKPsw/70tVyeHW787goQjhmqaZe10uwLujubK9q9Lg6Fiho1KUKDYz0Z7k7g5/g==",
+      "dev": true,
+      "engines": {
+        "node": ">=4"
+      }
+    },
     "node_modules/type-fest": {
       "version": "0.20.2",
       "resolved": "https://registry.npmjs.org/type-fest/-/type-fest-0.20.2.tgz",
@@ -8364,6 +8713,93 @@
         }
       }
     },
+    "node_modules/vite-node": {
+      "version": "1.6.0",
+      "resolved": "https://registry.npmjs.org/vite-node/-/vite-node-1.6.0.tgz",
+      "integrity": "sha512-de6HJgzC+TFzOu0NTC4RAIsyf/DY/ibWDYQUcuEA84EMHhcefTUGkjFHKKEJhQN4A+6I0u++kr3l36ZF2d7XRw==",
+      "dev": true,
+      "dependencies": {
+        "cac": "^6.7.14",
+        "debug": "^4.3.4",
+        "pathe": "^1.1.1",
+        "picocolors": "^1.0.0",
+        "vite": "^5.0.0"
+      },
+      "bin": {
+        "vite-node": "vite-node.mjs"
+      },
+      "engines": {
+        "node": "^18.0.0 || >=20.0.0"
+      },
+      "funding": {
+        "url": "https://opencollective.com/vitest"
+      }
+    },
+    "node_modules/vitest": {
+      "version": "1.6.0",
+      "resolved": "https://registry.npmjs.org/vitest/-/vitest-1.6.0.tgz",
+      "integrity": "sha512-H5r/dN06swuFnzNFhq/dnz37bPXnq8xB2xB5JOVk8K09rUtoeNN+LHWkoQ0A/i3hvbUKKcCei9KpbxqHMLhLLA==",
+      "dev": true,
+      "dependencies": {
+        "@vitest/expect": "1.6.0",
+        "@vitest/runner": "1.6.0",
+        "@vitest/snapshot": "1.6.0",
+        "@vitest/spy": "1.6.0",
+        "@vitest/utils": "1.6.0",
+        "acorn-walk": "^8.3.2",
+        "chai": "^4.3.10",
+        "debug": "^4.3.4",
+        "execa": "^8.0.1",
+        "local-pkg": "^0.5.0",
+        "magic-string": "^0.30.5",
+        "pathe": "^1.1.1",
+        "picocolors": "^1.0.0",
+        "std-env": "^3.5.0",
+        "strip-literal": "^2.0.0",
+        "tinybench": "^2.5.1",
+        "tinypool": "^0.8.3",
+        "vite": "^5.0.0",
+        "vite-node": "1.6.0",
+        "why-is-node-running": "^2.2.2"
+      },
+      "bin": {
+        "vitest": "vitest.mjs"
+      },
+      "engines": {
+        "node": "^18.0.0 || >=20.0.0"
+      },
+      "funding": {
+        "url": "https://opencollective.com/vitest"
+      },
+      "peerDependencies": {
+        "@edge-runtime/vm": "*",
+        "@types/node": "^18.0.0 || >=20.0.0",
+        "@vitest/browser": "1.6.0",
+        "@vitest/ui": "1.6.0",
+        "happy-dom": "*",
+        "jsdom": "*"
+      },
+      "peerDependenciesMeta": {
+        "@edge-runtime/vm": {
+          "optional": true
+        },
+        "@types/node": {
+          "optional": true
+        },
+        "@vitest/browser": {
+          "optional": true
+        },
+        "@vitest/ui": {
+          "optional": true
+        },
+        "happy-dom": {
+          "optional": true
+        },
+        "jsdom": {
+          "optional": true
+        }
+      }
+    },
     "node_modules/wagmi": {
       "version": "1.4.13",
       "resolved": "https://registry.npmjs.org/wagmi/-/wagmi-1.4.13.tgz",
@@ -8462,6 +8898,22 @@
         "url": "https://github.com/sponsors/ljharb"
       }
     },
+    "node_modules/why-is-node-running": {
+      "version": "2.2.2",
+      "resolved": "https://registry.npmjs.org/why-is-node-running/-/why-is-node-running-2.2.2.tgz",
+      "integrity": "sha512-6tSwToZxTOcotxHeA+qGCq1mVzKR3CwcJGmVcY+QE8SHy6TnpFnh8PAvPNHYr7EcuVeG0QSMxtYCuO1ta/G/oA==",
+      "dev": true,
+      "dependencies": {
+        "siginfo": "^2.0.0",
+        "stackback": "0.0.2"
+      },
+      "bin": {
+        "why-is-node-running": "cli.js"
+      },
+      "engines": {
+        "node": ">=8"
+      }
+    },
     "node_modules/word-wrap": {
       "version": "1.2.5",
       "resolved": "https://registry.npmjs.org/word-wrap/-/word-wrap-1.2.5.tgz",
diff --git a/package.json b/package.json
index a8ef42ea..6e8a664a 100644
--- a/package.json
+++ b/package.json
@@ -11,7 +11,7 @@
     "build:mainnet": "tsc && vite build --mode mainnet",
     "build:testnet": "tsc && vite build --mode testnet",
     "lint": "eslint . --ext ts,tsx --report-unused-disable-directives --max-warnings 0",
-    "test": "echo test",
+    "test": "vitest --run --silent",
     "preview": "vite preview",
     "format": "prettier 'src/**/*.{js,jsx,ts,tsx,json}' --write",
     "prepare": "husky"
@@ -68,6 +68,7 @@
     "prettier-plugin-tailwindcss": "^0.5.14",
     "tailwindcss": "^3.4.3",
     "typescript": "^5.2.2",
-    "vite": "^5.2.0"
+    "vite": "^5.2.0",
+    "vitest": "^1.6.0"
   }
 }
diff --git a/src/__tests__/native-token.spec.ts b/src/__tests__/native-token.spec.ts
new file mode 100644
index 00000000..6cd144aa
--- /dev/null
+++ b/src/__tests__/native-token.spec.ts
@@ -0,0 +1,11 @@
+import { describe, expect, it } from "vitest";
+import { getChainConfigs } from "../utils";
+
+describe.each(getChainConfigs(true).filter((c) => !!c.tokens.length))(
+  `Should configure native token`,
+  ({ name, tokens }) => {
+    it(name, () => {
+      expect(tokens.some((t) => t.type === "native")).not.toBeFalsy();
+    });
+  },
+);
diff --git a/src/__tests__/target-chain.spec.ts b/src/__tests__/target-chain.spec.ts
new file mode 100644
index 00000000..1fb0698c
--- /dev/null
+++ b/src/__tests__/target-chain.spec.ts
@@ -0,0 +1,19 @@
+import { describe, expect, it } from "vitest";
+import { getChainConfigs } from "../utils";
+
+describe.each(getChainConfigs(true).filter((c) => !!c.tokens.length))(
+  `Test cross's target network: $network`,
+  ({ network, tokens }) => {
+    describe.each(tokens)(`$symbol`, (token) => {
+      if (token.cross.length) {
+        it.each(token.cross)(`$target.network`, (cross) => {
+          expect(cross.target.network).not.toBe(network);
+        });
+      } else {
+        it("Cross is empty", () => {
+          expect(token.cross.length).toEqual(0);
+        });
+      }
+    });
+  },
+);
diff --git a/src/__tests__/target-token.spec.ts b/src/__tests__/target-token.spec.ts
new file mode 100644
index 00000000..0c9fe30f
--- /dev/null
+++ b/src/__tests__/target-token.spec.ts
@@ -0,0 +1,21 @@
+import { describe, expect, it } from "vitest";
+import { getChainConfig, getChainConfigs } from "../utils";
+
+describe.each(getChainConfigs(true).filter((c) => !!c.tokens.length))(
+  `Should configure target token`,
+  ({ network, tokens }) => {
+    describe.each(tokens)(`Cross $symbol from ${network}`, (token) => {
+      if (token.cross.length) {
+        it.each(token.cross)(`to $target.network $target.symbol`, (cross) => {
+          expect(
+            getChainConfig(cross.target.network)?.tokens.find((t) => t.symbol === cross.target.symbol),
+          ).not.toBeUndefined();
+        });
+      } else {
+        it("Cross is empty", () => {
+          expect(token.cross.length).toEqual(0);
+        });
+      }
+    });
+  },
+);
diff --git a/src/__tests__/token-decimals.spec.ts b/src/__tests__/token-decimals.spec.ts
new file mode 100644
index 00000000..bfa2e884
--- /dev/null
+++ b/src/__tests__/token-decimals.spec.ts
@@ -0,0 +1,20 @@
+import { describe, expect, it } from "vitest";
+import { getChainConfigs } from "../utils";
+import { createPublicClient, http } from "viem";
+import abi from "../abi/erc20";
+
+describe.each(getChainConfigs(true).filter((c) => !!c.tokens.length && c.network !== "taiko"))(
+  `Test token's decimals: $name`,
+  ({ tokens, ...chain }) => {
+    const publicClient = createPublicClient({ chain, transport: http() });
+
+    it.each(tokens)(`$symbol`, async (token) => {
+      if (token.type === "native") {
+        expect(token.decimals).toEqual(18);
+      } else {
+        const decimals = await publicClient.readContract({ address: token.address, abi, functionName: "decimals" });
+        expect(token.decimals).toEqual(decimals);
+      }
+    });
+  },
+);
diff --git a/tailwind.config.js b/tailwind.config.js
index 7d5992cd..9b246313 100644
--- a/tailwind.config.js
+++ b/tailwind.config.js
@@ -1,6 +1,6 @@
 /** @type {import('tailwindcss').Config} */
 export default {
-  content: ["./index.html", "./src/**/*.{js,ts,jsx,tsx}"],
+  content: ["./index.html", "./src/**/*.{jsx,tsx}"],
   theme: {
     extend: {
       backgroundImage: {
diff --git a/vite.config.ts b/vite.config.ts
index afc2004f..16648c88 100644
--- a/vite.config.ts
+++ b/vite.config.ts
@@ -1,3 +1,5 @@
+/// <reference types="vitest" />
+
 import { defineConfig } from 'vite'
 import react from '@vitejs/plugin-react-swc'