Only write to stdout when safe-chain audited packages

packages/safe-chain/src/scanning/audit/index.js

@@ -18,6 +18,29 @@ import {
  * @property {boolean} isAllowed
  */
 
+/**
+ * @typedef {Object} AuditStats
+ * @property {number} verifiedPackages
+ * @property {number} safePackages
+ * @property {number} malwarePackages
+ */
+
+/**
+ * @type AuditStats
+ */
+const auditStats = {
+  verifiedPackages: 0,
+  safePackages: 0,
+  malwarePackages: 0,
+};
+
+/**
+ * @returns {AuditStats}
+ */
+export function getAuditStats() {
+  return auditStats;
+}
+
 /**
  * @param {PackageChange[]} changes
  *
@@ -41,16 +64,20 @@ export async function auditChanges(changes) {
     );
 
     if (malwarePackage) {
+      auditStats.malwarePackages += 1;
       ui.writeVerbose(
         `Safe-chain: Package ${change.name}@${change.version} is marked as malware: ${malwarePackage.status}`
       );
       disallowedChanges.push({ ...change, reason: malwarePackage.status });
     } else {
+      auditStats.safePackages += 1;
       ui.writeVerbose(
         `Safe-chain: Package ${change.name}@${change.version} is clean`
       );
       allowedChanges.push(change);
     }
+
+    auditStats.verifiedPackages += 1;
   }
 
   const auditResults = {

packages/safe-chain/src/scanning/audit/index.spec.js

@@ -0,0 +1,188 @@
+import assert from "node:assert/strict";
+import { describe, it, mock, beforeEach } from "node:test";
+
+describe("audit/index", async () => {
+  const mockWriteVerbose = mock.fn();
+
+  // Mock UI module
+  mock.module("../../environment/userInteraction.js", {
+    namedExports: {
+      ui: {
+        writeVerbose: mockWriteVerbose,
+      },
+    },
+  });
+
+  // Mock malware database
+  const mockIsMalware = mock.fn();
+  mock.module("../malwareDatabase.js", {
+    namedExports: {
+      MALWARE_STATUS_MALWARE: "malware",
+      openMalwareDatabase: async () => ({
+        isMalware: mockIsMalware,
+      }),
+    },
+  });
+
+  const { auditChanges, getAuditStats } = await import("./index.js");
+
+  beforeEach(() => {
+    mockWriteVerbose.mock.resetCalls();
+    mockIsMalware.mock.resetCalls();
+  });
+
+  describe("getAuditStats", () => {
+    it("should return audit stats object with correct structure", () => {
+      const stats = getAuditStats();
+
+      assert.ok(stats.hasOwnProperty("verifiedPackages"));
+      assert.ok(stats.hasOwnProperty("safePackages"));
+      assert.ok(stats.hasOwnProperty("malwarePackages"));
+      assert.equal(typeof stats.verifiedPackages, "number");
+      assert.equal(typeof stats.safePackages, "number");
+      assert.equal(typeof stats.malwarePackages, "number");
+    });
+
+    it("should return the same object reference on multiple calls", () => {
+      const stats1 = getAuditStats();
+      const stats2 = getAuditStats();
+
+      assert.equal(stats1, stats2);
+    });
+  });
+
+  describe("auditChanges", () => {
+    it("should return empty allowed and disallowed arrays when no changes provided", async () => {
+      const result = await auditChanges([]);
+
+      assert.deepEqual(result.allowedChanges, []);
+      assert.deepEqual(result.disallowedChanges, []);
+      assert.equal(result.isAllowed, true);
+    });
+
+    it("should mark package as allowed when not malware", async () => {
+      mockIsMalware.mock.mockImplementation(() => false);
+
+      const changes = [{ name: "lodash", version: "4.17.21", type: "add" }];
+      const result = await auditChanges(changes);
+
+      assert.equal(result.allowedChanges.length, 1);
+      assert.equal(result.disallowedChanges.length, 0);
+      assert.equal(result.isAllowed, true);
+      assert.deepEqual(result.allowedChanges[0], changes[0]);
+    });
+
+    it("should mark package as disallowed when malware detected", async () => {
+      mockIsMalware.mock.mockImplementation(() => true);
+
+      const changes = [
+        { name: "malicious-pkg", version: "1.0.0", type: "add" },
+      ];
+      const result = await auditChanges(changes);
+
+      assert.equal(result.allowedChanges.length, 0);
+      assert.equal(result.disallowedChanges.length, 1);
+      assert.equal(result.isAllowed, false);
+      assert.equal(result.disallowedChanges[0].name, "malicious-pkg");
+      assert.equal(result.disallowedChanges[0].version, "1.0.0");
+      assert.equal(result.disallowedChanges[0].reason, "malware");
+    });
+
+    it("should handle mixed safe and malware packages", async () => {
+      mockIsMalware.mock.mockImplementation((name) => {
+        return name === "malicious-pkg";
+      });
+
+      const changes = [
+        { name: "lodash", version: "4.17.21", type: "add" },
+        { name: "malicious-pkg", version: "1.0.0", type: "add" },
+        { name: "express", version: "4.18.0", type: "add" },
+      ];
+      const result = await auditChanges(changes);
+
+      assert.equal(result.allowedChanges.length, 2);
+      assert.equal(result.disallowedChanges.length, 1);
+      assert.equal(result.isAllowed, false);
+      assert.equal(result.disallowedChanges[0].name, "malicious-pkg");
+    });
+
+    it("should only check malware for add and change types", async () => {
+      mockIsMalware.mock.mockImplementation(() => false);
+
+      const changes = [
+        { name: "pkg1", version: "1.0.0", type: "add" },
+        { name: "pkg2", version: "2.0.0", type: "change" },
+        { name: "pkg3", version: "3.0.0", type: "remove" },
+      ];
+      await auditChanges(changes);
+
+      // Should only check pkg1 and pkg2, not pkg3 (remove type)
+      assert.equal(mockIsMalware.mock.calls.length, 2);
+    });
+
+    it("should increment verifiedPackages counter for each package", async () => {
+      mockIsMalware.mock.mockImplementation(() => false);
+
+      const statsBefore = getAuditStats();
+      const initialCount = statsBefore.verifiedPackages;
+
+      const changes = [
+        { name: "pkg1", version: "1.0.0", type: "add" },
+        { name: "pkg2", version: "2.0.0", type: "add" },
+        { name: "pkg3", version: "3.0.0", type: "add" },
+      ];
+      await auditChanges(changes);
+
+      const statsAfter = getAuditStats();
+      assert.equal(statsAfter.verifiedPackages, initialCount + 3);
+    });
+
+    it("should increment safePackages counter for safe packages", async () => {
+      mockIsMalware.mock.mockImplementation(() => false);
+
+      const statsBefore = getAuditStats();
+      const initialCount = statsBefore.safePackages;
+
+      const changes = [
+        { name: "lodash", version: "4.17.21", type: "add" },
+        { name: "express", version: "4.18.0", type: "add" },
+      ];
+      await auditChanges(changes);
+
+      const statsAfter = getAuditStats();
+      assert.equal(statsAfter.safePackages, initialCount + 2);
+    });
+
+    it("should increment malwarePackages counter for malware packages", async () => {
+      mockIsMalware.mock.mockImplementation(() => true);
+
+      const statsBefore = getAuditStats();
+      const initialCount = statsBefore.malwarePackages;
+
+      const changes = [
+        { name: "malicious-1", version: "1.0.0", type: "add" },
+        { name: "malicious-2", version: "2.0.0", type: "add" },
+      ];
+      await auditChanges(changes);
+
+      const statsAfter = getAuditStats();
+      assert.equal(statsAfter.malwarePackages, initialCount + 2);
+    });
+
+    it("should accumulate stats across multiple auditChanges calls", async () => {
+      mockIsMalware.mock.mockImplementation(() => false);
+
+      const statsBefore = getAuditStats();
+      const initialVerified = statsBefore.verifiedPackages;
+
+      // First call
+      await auditChanges([{ name: "pkg1", version: "1.0.0", type: "add" }]);
+
+      // Second call
+      await auditChanges([{ name: "pkg2", version: "2.0.0", type: "add" }]);
+
+      const statsAfter = getAuditStats();
+      assert.equal(statsAfter.verifiedPackages, initialVerified + 2);
+    });
+  });
+});