Add Fantom integration tests for ActivityIndicator (#55767)

Summary:
Pull Request resolved: #55767

Add new Fantom integration tests for ActivityIndicator, achieving 100% line coverage for ActivityIndicator.js (from 0%).

Changelog: [Internal]

Reviewed By: CalixTang

Differential Revision: D94360957

fbshipit-source-id: 1312e45bdf0ed9cf6c337b101b83c7b9e456c4d1

Author: sammy-SC

packages/react-native/Libraries/Components/ActivityIndicator/__tests__/ActivityIndicator-itest.js

@@ -0,0 +1,191 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ *
+ * @flow strict-local
+ * @format
+ */
+
+import '@react-native/fantom/src/setUpDefaultReactNativeEnvironment';
+
+import ensureInstance from '../../../../src/private/__tests__/utilities/ensureInstance';
+import * as Fantom from '@react-native/fantom';
+import * as React from 'react';
+import {createRef} from 'react';
+import {ActivityIndicator} from 'react-native';
+import ReactNativeElement from 'react-native/src/private/webapis/dom/nodes/ReactNativeElement';
+
+describe('<ActivityIndicator>', () => {
+  describe('props', () => {
+    describe('size', () => {
+      it('defaults to "small" (20x20)', () => {
+        const root = Fantom.createRoot();
+
+        Fantom.runTask(() => {
+          root.render(<ActivityIndicator />);
+        });
+
+        expect(root.getRenderedOutput().toJSX()).toEqual(
+          <rn-androidProgressBar height="20.000000" width="20.000000" />,
+        );
+      });
+
+      it('renders with size "small"', () => {
+        const root = Fantom.createRoot();
+
+        Fantom.runTask(() => {
+          root.render(<ActivityIndicator size="small" />);
+        });
+
+        expect(root.getRenderedOutput().toJSX()).toEqual(
+          <rn-androidProgressBar height="20.000000" width="20.000000" />,
+        );
+      });
+
+      it('renders with size "large" (36x36)', () => {
+        const root = Fantom.createRoot();
+
+        Fantom.runTask(() => {
+          root.render(<ActivityIndicator size="large" />);
+        });
+
+        expect(root.getRenderedOutput().toJSX()).toEqual(
+          <rn-androidProgressBar height="36.000000" width="36.000000" />,
+        );
+      });
+
+      it('renders with numeric size on Android', () => {
+        const root = Fantom.createRoot();
+
+        Fantom.runTask(() => {
+          root.render(<ActivityIndicator size={48} />);
+        });
+
+        expect(root.getRenderedOutput().toJSX()).toEqual(
+          <rn-androidProgressBar height="48.000000" width="48.000000" />,
+        );
+      });
+    });
+
+    describe('color', () => {
+      it('renders an AndroidProgressBar when color is set', () => {
+        const root = Fantom.createRoot();
+
+        Fantom.runTask(() => {
+          root.render(<ActivityIndicator color="red" />);
+        });
+
+        // Color is a native prop not serialized as a view attribute,
+        // but the component still renders correctly
+        expect(root.getRenderedOutput().toJSX()).toEqual(
+          <rn-androidProgressBar height="20.000000" width="20.000000" />,
+        );
+      });
+    });
+
+    describe('animating', () => {
+      it('defaults to true', () => {
+        const root = Fantom.createRoot();
+
+        Fantom.runTask(() => {
+          root.render(<ActivityIndicator />);
+        });
+
+        // Component renders normally when animating (default)
+        expect(root.getRenderedOutput().toJSX()).toEqual(
+          <rn-androidProgressBar height="20.000000" width="20.000000" />,
+        );
+      });
+
+      it('renders when animating is false', () => {
+        const root = Fantom.createRoot();
+
+        Fantom.runTask(() => {
+          root.render(<ActivityIndicator animating={false} />);
+        });
+
+        // Component still renders when not animating
+        expect(root.getRenderedOutput().toJSX()).toEqual(
+          <rn-androidProgressBar height="20.000000" width="20.000000" />,
+        );
+      });
+    });
+
+    describe('style', () => {
+      it('applies wrapper View style', () => {
+        const root = Fantom.createRoot();
+
+        Fantom.runTask(() => {
+          root.render(<ActivityIndicator style={{opacity: 0.5}} />);
+        });
+
+        expect(root.getRenderedOutput({props: ['opacity']}).toJSX()).toEqual(
+          <rn-view opacity="0.5">
+            <rn-androidProgressBar />
+          </rn-view>,
+        );
+      });
+    });
+
+    describe('accessibilityLabel', () => {
+      it('is propagated to the native component', () => {
+        const root = Fantom.createRoot();
+
+        Fantom.runTask(() => {
+          root.render(
+            <ActivityIndicator accessibilityLabel="Loading content" />,
+          );
+        });
+
+        expect(
+          root.getRenderedOutput({props: ['accessibilityLabel']}).toJSX(),
+        ).toEqual(
+          <rn-androidProgressBar accessibilityLabel="Loading content" />,
+        );
+      });
+    });
+
+    describe('testID', () => {
+      it('is propagated to the native component', () => {
+        const root = Fantom.createRoot();
+
+        Fantom.runTask(() => {
+          root.render(<ActivityIndicator testID="loading-spinner" />);
+        });
+
+        expect(root.getRenderedOutput({props: ['testID']}).toJSX()).toEqual(
+          <rn-androidProgressBar testID="loading-spinner" />,
+        );
+      });
+    });
+  });
+
+  describe('ref', () => {
+    it('provides a valid ReactNativeElement instance', () => {
+      const elementRef =
+        createRef<React.ElementRef<typeof ActivityIndicator>>();
+      const root = Fantom.createRoot();
+
+      Fantom.runTask(() => {
+        root.render(<ActivityIndicator ref={elementRef} />);
+      });
+
+      expect(elementRef.current).toBeInstanceOf(ReactNativeElement);
+    });
+
+    it('has the correct tag name', () => {
+      const elementRef =
+        createRef<React.ElementRef<typeof ActivityIndicator>>();
+      const root = Fantom.createRoot();
+
+      Fantom.runTask(() => {
+        root.render(<ActivityIndicator ref={elementRef} />);
+      });
+
+      const element = ensureInstance(elementRef.current, ReactNativeElement);
+      expect(element.tagName).toBe('RN:AndroidProgressBar');
+    });
+  });
+});