add: a signal util

npm/ng-packs/packages/theme-shared/src/lib/tests/utils/index.ts

@@ -1 +1,2 @@
+export * from './input-signal';
 export * from './setup-component-resources';

npm/ng-packs/packages/theme-shared/src/lib/tests/utils/input-signal.ts

@@ -0,0 +1,6 @@
+import { ɵSIGNAL as SIGNAL } from '@angular/core';
+
+export const setInputSignal = <T>(inputSignal: () => T, value: T) => {
+  const node = inputSignal[SIGNAL];
+  node.applyValueToInputSignal(node, value);
+};