refactor(main): audit warning suppression rules

tests/unit/main-warning-suppression-rules.test.ts

@@ -0,0 +1,44 @@
+import { describe, expect, it } from "vitest";
+import {
+  CONSOLE_ERROR_SUPPRESSION_RULES,
+  WARNING_SUPPRESSION_RULES,
+  classifyConsoleErrorSuppression,
+  classifyWarningSuppression,
+} from "../../src/main/main-warning-suppression-rules";
+
+describe("main warning suppression rules", () => {
+  it("documents every warning suppression category with an operator reason", () => {
+    for (const rule of [...WARNING_SUPPRESSION_RULES, ...CONSOLE_ERROR_SUPPRESSION_RULES]) {
+      expect(rule.category).toMatch(/^[a-z0-9-]+$/);
+      expect(rule.reason.length).toBeGreaterThan(40);
+    }
+  });
+
+  it("suppresses only the node sqlite experimental warning", () => {
+    const sqliteWarning = new Error("SQLite is an experimental feature and might change at any time");
+    sqliteWarning.name = "ExperimentalWarning";
+
+    const genericWarning = new Error("fetch is an experimental feature");
+    genericWarning.name = "ExperimentalWarning";
+
+    expect(classifyWarningSuppression(sqliteWarning)).toBe("node-sqlite-experimental-warning");
+    expect(classifyWarningSuppression("SQLite is an experimental feature and might change at any time"))
+      .toBe("node-sqlite-experimental-warning");
+    expect(classifyWarningSuppression(genericWarning)).toBeNull();
+    expect(classifyWarningSuppression("deprecation warning")).toBeNull();
+  });
+
+  it("suppresses only disposed renderer frame send noise", () => {
+    expect(classifyConsoleErrorSuppression([
+      "Error sending from webFrameMain:",
+      new Error("Render frame was disposed before WebFrameMain could send"),
+    ])).toBe("electron-disposed-web-frame-send");
+
+    expect(classifyConsoleErrorSuppression([
+      "Error sending from webFrameMain:",
+      new Error("Permission denied"),
+    ])).toBeNull();
+    expect(classifyConsoleErrorSuppression(["Unhandled renderer error", new Error("Render frame was disposed")]))
+      .toBeNull();
+  });
+});