Fix tests for primereact.

Mock inject stylesheet.
Mock dropdown, multiselect and slider. They don't work with jsdom.
Update snapshots.

Author: jasny

packages/primereact/babel.config.js

@@ -0,0 +1,3 @@
+{
+  "extends": "../../babel.config.json"
+}

packages/primereact/babel.config.json

@@ -0,0 +1,13 @@
+{
+  "testEnvironment": "jsdom",
+  "transform": {
+    "^.+\\.(ts|tsx|js|jsx)$": ["babel-jest", { "configFile": "./babel.config.json" }]
+  },
+  "transformIgnorePatterns": ["/node_modules/(?!nanoid/.*)"],
+  "moduleNameMapper": {
+    "^@/(.*)$": "<rootDir>/src/$1"
+  },
+  "setupFilesAfterEnv": [
+    "<rootDir>/test/setup.ts"
+  ]
+}

packages/primereact/jest.config.js

@@ -2,4 +2,17 @@ import { arrayTests } from '@rjsf/snapshot-tests';
 
 import Form from '../src';
 
+// Mock PrimeReact components that use parentElement or real DOM
+jest.mock('primereact/dropdown', () => ({
+  Dropdown: (props: Record<string, any>) => <select {...props} />,
+}));
+
+jest.mock('primereact/multiselect', () => ({
+  MultiSelect: (props: Record<string, any>) => <select multiple {...props} />,
+}));
+
+jest.mock('primereact/slider', () => ({
+  Slider: (props: Record<string, any>) => <input type='range' {...props} />,
+}));
+
 arrayTests(Form);

packages/primereact/jest.config.json

@@ -2,4 +2,17 @@ import { formTests } from '@rjsf/snapshot-tests';
 
 import Form from '../src';
 
+// Mock PrimeReact components that use parentElement or real DOM
+jest.mock('primereact/dropdown', () => ({
+  Dropdown: (props: Record<string, any>) => <select {...props} />,
+}));
+
+jest.mock('primereact/multiselect', () => ({
+  MultiSelect: (props: Record<string, any>) => <select multiple {...props} />,
+}));
+
+jest.mock('primereact/slider', () => ({
+  Slider: (props: Record<string, any>) => <input type='range' {...props} />,
+}));
+
 formTests(Form);

packages/primereact/test/Array.test.tsx

@@ -2,6 +2,19 @@ import { gridTests } from '@rjsf/snapshot-tests';
 
 import Form from '../src';
 
+// Mock PrimeReact components that use parentElement or real DOM
+jest.mock('primereact/dropdown', () => ({
+  Dropdown: (props: Record<string, any>) => <select {...props} />,
+}));
+
+jest.mock('primereact/multiselect', () => ({
+  MultiSelect: (props: Record<string, any>) => <select multiple {...props} />,
+}));
+
+jest.mock('primereact/slider', () => ({
+  Slider: (props: Record<string, any>) => <input type='range' {...props} />,
+}));
+
 gridTests(Form, {
   ColumnWidthAll: { xs: 12 },
   ColumnWidth4: { xs: 4 },