Prevent test coverage backsliding for 100% coverage files

vite.config.ts

@@ -1,24 +1,92 @@
 import { defineConfig } from 'vitest/config';
 
+// These globs are expected to have 100% coverage.
+const FULL_COVERAGE_FILES_RELATIVE = [
+  'camera-manager/*.ts',
+  'camera-manager/browse-media/camera.ts',
+  'camera-manager/frigate/camera.ts',
+  'camera-manager/frigate/icon.ts',
+  'camera-manager/frigate/requests.ts',
+  'camera-manager/frigate/util.ts',
+  'camera-manager/generic/*.ts',
+  'camera-manager/motioneye/icon.ts',
+  'card-controller/*.ts',
+  'components-lib/cached-value-controller.ts',
+  'components-lib/media-filter-controller.ts',
+  'components-lib/menu-button-controller.ts',
+  'components-lib/menu-controller.ts',
+  'components-lib/ptz-controller.ts',
+  'components-lib/zoom-controller.ts',
+  'config-mgmt.ts',
+  'config/types.ts',
+  'const.ts',
+  'src/view/*.ts',
+  'types.ts',
+  'utils/action.ts',
+  'utils/audio.ts',
+  'utils/basic.ts',
+  'utils/camera.ts',
+  'utils/debug.ts',
+  'utils/diagnostics.ts',
+  'utils/download.ts',
+  'utils/embla/**/*.ts',
+  'utils/ha/entity-registry/types.ts',
+  'utils/ha/types.ts',
+  'utils/media-info.ts',
+  'utils/media-to-view.ts',
+  'utils/media.ts',
+  'utils/ptz.ts',
+  'utils/screenshot.ts',
+  'utils/substream.ts',
+  'utils/timer.ts',
+  'utils/zod.ts',
+];
+
+interface Threshold {
+  statements: number;
+  branches: number;
+  functions: number;
+  lines: number;
+  perFile: boolean;
+}
+
+const fullCoverage: Threshold = {
+  statements: 100,
+  branches: 100,
+  functions: 100,
+  lines: 100,
+  perFile: true,
+};
+
+const calculateFullCoverageThresholds = (): Record<string, Threshold> => {
+  return FULL_COVERAGE_FILES_RELATIVE.reduce(
+    (a, v) => ({ ...a, ['**/src/' + v]: fullCoverage }),
+    {},
+  );
+};
+
 // ts-prune-ignore-next
 export default defineConfig({
   test: {
-    include: [
-      "tests/**/*.test.ts"
-    ],
+    include: ['tests/**/*.test.ts'],
     coverage: {
       // Favor istanbul for coverage over v8 due to better accuracy.
       provider: 'istanbul',
 
-      // Thresholds will automatically be updated as coverage improves to avoid
-      // back-sliding.
       thresholds: {
+        // Thresholds will automatically be updated as coverage improves to avoid
+        // back-sliding.
         autoUpdate: true,
-        statements: 51.11,
-        branches: 43.04,
-        functions: 51.03,
-        lines: 51.91,
+
+        // Expected thresholds for anything that does not have 100% coverage
+        // yet.
+        statements: 15.54,
+        branches: 10.38,
+        functions: 16.18,
+        lines: 15.84,
+
+        ...calculateFullCoverageThresholds(),
       },
     },
   },
-});
+});