Initial commit: add .gitignore and README

tests/unit/guards/positionDeltaLimit.test.ts

@@ -0,0 +1,57 @@
+import { describe, it, expect } from "vitest";
+import { evaluatePositionDeltaLimit } from "../../../src/guards/positionDeltaLimit.js";
+import { Guard } from "../../../src/strategy.schema.js";
+
+describe("Position Delta Limit Guard", () => {
+  it("should pass when position delta is within limit", () => {
+    const guard: Guard = {
+      type: "positionDeltaLimit",
+      params: {
+        maxDelta: "1000000",
+        token: "0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48",
+      },
+    };
+
+    const context = {
+      positionDelta: 500000n,
+    };
+
+    const result = evaluatePositionDeltaLimit(guard, "mainnet", context);
+    expect(result.passed).toBe(true);
+  });
+
+  it("should fail when position delta exceeds limit", () => {
+    const guard: Guard = {
+      type: "positionDeltaLimit",
+      params: {
+        maxDelta: "1000000",
+        token: "0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48",
+      },
+    };
+
+    const context = {
+      positionDelta: 2000000n,
+    };
+
+    const result = evaluatePositionDeltaLimit(guard, "mainnet", context);
+    expect(result.passed).toBe(false);
+    expect(result.reason).toContain("exceeds");
+  });
+
+  it("should handle missing position delta", () => {
+    const guard: Guard = {
+      type: "positionDeltaLimit",
+      params: {
+        maxDelta: "1000000",
+        token: "0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48",
+      },
+    };
+
+    const context = {};
+
+    const result = evaluatePositionDeltaLimit(guard, "mainnet", context);
+    // Should pass if no delta to check
+    expect(result.passed).toBe(true);
+  });
+});
+