diff --git a/TestCoin.ts b/TestCoin.ts
new file mode 100644
index 00000000000..576a5905e28
--- /dev/null
+++ b/TestCoin.ts
@@ -0,0 +1,24 @@
+import { Coin } from '../types';
+import { randomBytes } from 'crypto';
+
+export class TestCoin {
+  /**
+   * Creates a single test coin with given parameters
+   */
+  static create(params: Partial<Coin> = {}): Coin {
+    return {
+      id: params.id || `0x${randomBytes(32).toString('hex')}`,
+      owner: params.owner || `0x${randomBytes(32).toString('hex')}`,
+      amount: params.amount || BigInt(1000000),
+      type: params.type || 0,
+      ...params
+    };
+  }
+
+  /**
+   * Generates an array of test coins with the same base parameters
+   */
+  static many(params: Partial<Coin> = {}, count: number = 1): Coin[] {
+    return Array.from({ length: count }, () => TestCoin.create(params));
+  }
+}