Initial Commit

packages/foundation/data/react-packer/tests/setup/polyfills.ts

@@ -0,0 +1,50 @@
+// React-tier polyfills. Base webcrypto comes from `@suaveplan/testing/polyfills`;
+// this file adds the `IS_REACT_ACT_ENVIRONMENT` flag React DOM looks for when
+// state updates happen outside an explicit `act(...)` wrapper, plus a minimal
+// `URL.createObjectURL`/`revokeObjectURL` shim because happy-dom does not
+// implement them and the underlying `PackedResourceManager` calls them on
+// every load.
+
+interface ReactActEnvWindow {
+    IS_REACT_ACT_ENVIRONMENT?: boolean;
+}
+
+const win = globalThis as unknown as ReactActEnvWindow;
+if (win.IS_REACT_ACT_ENVIRONMENT === undefined) {
+    win.IS_REACT_ACT_ENVIRONMENT = true;
+}
+
+interface ObjectUrlGlobals {
+    URL: {
+        createObjectURL?: (obj: Blob) => string;
+        revokeObjectURL?: (url: string) => void;
+    };
+}
+
+const urlGlobals = globalThis as unknown as ObjectUrlGlobals;
+let counter = 0;
+if (typeof urlGlobals.URL.createObjectURL !== "function") {
+    urlGlobals.URL.createObjectURL = (_blob: Blob): string => {
+        counter += 1;
+        return `blob:react-packer/${counter}`;
+    };
+}
+if (typeof urlGlobals.URL.revokeObjectURL !== "function") {
+    urlGlobals.URL.revokeObjectURL = (_url: string): void => {
+        // no-op shim — happy-dom doesn't track blob URLs
+    };
+}
+
+interface FontShim {
+    fonts?: {
+        load?: (spec: string) => Promise<FontFace[]>;
+        add?: (font: FontFace) => unknown;
+    };
+}
+const docShim = (globalThis as { document?: FontShim }).document;
+if (docShim !== undefined && docShim.fonts === undefined) {
+    docShim.fonts = {
+        load: async (_spec: string): Promise<FontFace[]> => [],
+        add: (_font: FontFace): unknown => undefined,
+    };
+}