Enforce isolated declarations for WPT capability runner

Author: andrewiggins

packages/wpt-runner/scripts/evaluate-capabilities.ts

@@ -1,10 +1,27 @@
 import type {WptHarnessTestResult, WptRunRecord} from '../shared/types.ts';
 import {compareCodeUnits, type CapabilityRow} from './capabilities.ts';
 
+interface EvaluatedCapability {
+  row: CapabilityRow;
+  test: WptHarnessTestResult;
+}
+
+export interface CapabilityEvaluation {
+  deferredFailures: EvaluatedCapability[];
+  duplicateResults: string[];
+  failed: boolean;
+  missing: CapabilityRow[];
+  promotionCandidates: EvaluatedCapability[];
+  supportedFailures: EvaluatedCapability[];
+  supportedPassed: EvaluatedCapability[];
+  unlisted: WptHarnessTestResult[];
+}
+
+/** Compares WPT results against the declared capability matrix. */
 export function evaluateCapabilities(
   run: WptRunRecord,
   rows: readonly CapabilityRow[],
-) {
+): CapabilityEvaluation {
   const tests = run.result?.tests ?? [];
   const testByName = new Map<string, WptHarnessTestResult>();
   const duplicateResults: string[] = [];

packages/wpt-runner/scripts/tsconfig.json

@@ -2,6 +2,7 @@
   "extends": "@quilted/typescript/tsconfig.package.json",
   "compilerOptions": {
     "erasableSyntaxOnly": true,
+    "isolatedDeclarations": true,
     "lib": ["esnext"],
     "outDir": "../build/typescript/node",
     "rootDir": "..",

packages/wpt-runner/shared/tsconfig.json

@@ -2,6 +2,7 @@
   "extends": "@quilted/typescript/tsconfig.package.json",
   "compilerOptions": {
     "erasableSyntaxOnly": true,
+    "isolatedDeclarations": true,
     "lib": ["esnext"],
     "outDir": "../build/typescript/shared",
     "rootDir": ".",

packages/wpt-runner/src/tsconfig.json

@@ -2,6 +2,7 @@
   "extends": "@quilted/typescript/tsconfig.package.json",
   "compilerOptions": {
     "erasableSyntaxOnly": true,
+    "isolatedDeclarations": true,
     "lib": ["dom", "dom.iterable", "esnext"],
     "outDir": "../build/typescript/browser",
     "rootDir": ".",