Split up newPackagesDatabse into builder, warnigns, cache

packages/safe-chain/src/scanning/newPackagesDatabaseWarnings.spec.js

@@ -0,0 +1,63 @@
+import { describe, it, mock, beforeEach } from "node:test";
+import assert from "node:assert";
+
+let writeWarningCalls = [];
+
+mock.module("../environment/userInteraction.js", {
+  namedExports: {
+    ui: {
+      writeWarning: (msg) => writeWarningCalls.push(msg),
+    },
+  },
+});
+
+const { warnOnceAboutUnavailableDatabase, resetWarningState } = await import(
+  "./newPackagesDatabaseWarnings.js"
+);
+
+describe("newPackagesDatabaseWarnings", () => {
+  beforeEach(() => {
+    writeWarningCalls = [];
+    resetWarningState();
+  });
+
+  describe("warnOnceAboutUnavailableDatabase", () => {
+    it("emits a warning containing the error message", () => {
+      warnOnceAboutUnavailableDatabase(new Error("feed unavailable"));
+
+      assert.strictEqual(writeWarningCalls.length, 1);
+      assert.ok(writeWarningCalls[0].includes("feed unavailable"));
+    });
+
+    it("mentions fallback to metadata-based checks in the warning", () => {
+      warnOnceAboutUnavailableDatabase(new Error("timeout"));
+
+      assert.ok(
+        writeWarningCalls[0].includes(
+          "Continuing with metadata-based minimum age checks only"
+        )
+      );
+    });
+
+    it("only emits once even when called multiple times", () => {
+      warnOnceAboutUnavailableDatabase(new Error("first"));
+      warnOnceAboutUnavailableDatabase(new Error("second"));
+      warnOnceAboutUnavailableDatabase(new Error("third"));
+
+      assert.strictEqual(writeWarningCalls.length, 1);
+    });
+  });
+
+  describe("resetWarningState", () => {
+    it("allows the warning to fire again after reset", () => {
+      warnOnceAboutUnavailableDatabase(new Error("first"));
+      assert.strictEqual(writeWarningCalls.length, 1);
+
+      resetWarningState();
+      writeWarningCalls = [];
+
+      warnOnceAboutUnavailableDatabase(new Error("second"));
+      assert.strictEqual(writeWarningCalls.length, 1);
+    });
+  });
+});