Build Phase 1 application foundation

server/test/settings.test.js

@@ -0,0 +1,81 @@
+const test = require("node:test");
+const assert = require("node:assert/strict");
+const { openDatabase } = require("../src/database");
+const { runMigrations } = require("../src/database/migrate");
+const {
+  SettingsValidationError,
+  createSettingsService,
+} = require("../src/settings/service");
+
+function createService() {
+  const database = openDatabase({ path: ":memory:" });
+  runMigrations(database);
+  return {
+    database,
+    service: createSettingsService(database, { now: () => 2_000_000_000_000 }),
+  };
+}
+
+test("settings are persisted with the approved defaults", (t) => {
+  const { database, service } = createService();
+  t.after(() => database.close());
+
+  assert.deepEqual(service.get(), {
+    revision: 1,
+    defaultDurationMs: 7000,
+    defaultBackgroundMode: "blurred",
+    defaultSolidBackgroundColor: "#000000",
+    defaultBackgroundDarkened: false,
+    defaultBlurPx: 20,
+    crossfadeDurationMs: 1000,
+    updatedAt: database.prepare("SELECT updated_at FROM app_settings").get()
+      .updated_at,
+  });
+});
+
+test("settings updates persist boolean darkening and increment revision", (t) => {
+  const { database, service } = createService();
+  t.after(() => database.close());
+
+  const updated = service.update({
+    defaultBackgroundDarkened: true,
+    defaultBlurPx: 24,
+  });
+
+  assert.equal(updated.revision, 2);
+  assert.equal(updated.defaultBackgroundDarkened, true);
+  assert.equal(updated.defaultBlurPx, 24);
+  assert.equal(
+    database.prepare("SELECT default_background_darkened FROM app_settings").get()
+      .default_background_darkened,
+    1,
+  );
+});
+
+test("settings reject strength values, unknown fields, and invalid values", (t) => {
+  const { database, service } = createService();
+  t.after(() => database.close());
+
+  const original = service.get();
+
+  assert.throws(
+    () => service.update({ defaultBlurPx: 24, darkeningOverride: 0.25 }),
+    (error) => error instanceof SettingsValidationError,
+  );
+  assert.deepEqual(service.get(), original);
+  assert.throws(
+    () => service.update({ defaultBlurPx: 24, defaultBackgroundDarkened: 1 }),
+    /must be a boolean/,
+  );
+  assert.deepEqual(service.get(), original);
+  assert.throws(
+    () => service.update({ defaultDurationMs: 0 }),
+    /positive integer/,
+  );
+  assert.deepEqual(service.get(), original);
+  assert.throws(
+    () => service.update({ toString: "not a setting" }),
+    /unknown fields/,
+  );
+  assert.deepEqual(service.get(), original);
+});