Initial commit: add .gitignore and README

tests/unit/utils/gas.test.ts

@@ -0,0 +1,105 @@
+import { describe, it, expect, vi, beforeEach } from "vitest";
+import { estimateGasForCalls } from "../../../src/utils/gas.js";
+import { CompiledCall } from "../../../src/planner/compiler.js";
+import { JsonRpcProvider } from "ethers";
+
+describe("Gas Estimation", () => {
+  let mockProvider: any;
+
+  beforeEach(() => {
+    mockProvider = {
+      estimateGas: vi.fn(),
+      getNetwork: vi.fn().mockResolvedValue({ chainId: 1n }),
+    };
+  });
+
+  it("should estimate gas for single call", async () => {
+    const calls: CompiledCall[] = [
+      {
+        to: "0x1234567890123456789012345678901234567890",
+        data: "0x1234",
+        description: "Test call",
+      },
+    ];
+
+    mockProvider.estimateGas = vi.fn().mockResolvedValue(100000n);
+
+    const estimate = await estimateGasForCalls(
+      mockProvider as any,
+      calls,
+      "0x0000000000000000000000000000000000000000"
+    );
+
+    expect(estimate).toBeGreaterThan(0n);
+  });
+
+  it("should estimate gas for multiple calls", async () => {
+    const calls: CompiledCall[] = [
+      {
+        to: "0x1234567890123456789012345678901234567890",
+        data: "0x1234",
+        description: "Call 1",
+      },
+      {
+        to: "0x1234567890123456789012345678901234567890",
+        data: "0x5678",
+        description: "Call 2",
+      },
+    ];
+
+    mockProvider.estimateGas = vi.fn().mockResolvedValue(100000n);
+
+    const estimate = await estimateGasForCalls(
+      mockProvider as any,
+      calls,
+      "0x0000000000000000000000000000000000000000"
+    );
+
+    expect(estimate).toBeGreaterThan(0n);
+  });
+
+  it("should add safety buffer to estimates", async () => {
+    const calls: CompiledCall[] = [
+      {
+        to: "0x1234567890123456789012345678901234567890",
+        data: "0x1234",
+        description: "Test call",
+      },
+    ];
+
+    mockProvider.estimateGas = vi.fn().mockResolvedValue(100000n);
+
+    const estimate = await estimateGasForCalls(
+      mockProvider as any,
+      calls,
+      "0x0000000000000000000000000000000000000000"
+    );
+
+    // Should have safety buffer (typically 20%)
+    expect(estimate).toBeGreaterThan(100000n);
+  });
+
+  it("should handle estimation failures gracefully", async () => {
+    const calls: CompiledCall[] = [
+      {
+        to: "0x1234567890123456789012345678901234567890",
+        data: "0x1234",
+        description: "Test call",
+      },
+    ];
+
+    mockProvider.estimateGas = vi.fn().mockRejectedValue(
+      new Error("Estimation failed")
+    );
+
+    // Should fall back to rough estimate
+    await expect(
+      estimateGasForCalls(
+        mockProvider as any,
+        calls,
+        "0x0000000000000000000000000000000000000000"
+      )
+    ).rejects.toThrow();
+  });
+});
+