feat(player): 首页进详情与播放页改为淡入转场

test/navigation/fade_page_route_test.dart

@@ -0,0 +1,50 @@
+// Author: fruit.com.cn
+
+import 'package:flutter/material.dart';
+import 'package:flutter_test/flutter_test.dart';
+import 'package:fruitshorts/core/navigation/fade_page_route.dart';
+
+void main() {
+  testWidgets('should_fade_in_without_slide_and_use_short_transitions', (
+    tester,
+  ) async {
+    final navigatorKey = GlobalKey<NavigatorState>();
+    var routePushed = false;
+    final route = FadePageRoute<void>(
+      builder: (_) =>
+          const Scaffold(key: Key('fade-route-page'), body: SizedBox.expand()),
+    );
+
+    expect(route.transitionDuration, const Duration(milliseconds: 220));
+    expect(route.reverseTransitionDuration, const Duration(milliseconds: 180));
+    expect(route.opaque, isTrue);
+
+    await tester.pumpWidget(
+      MaterialApp(
+        navigatorKey: navigatorKey,
+        home: Builder(
+          builder: (context) => Scaffold(
+            body: TextButton(
+              onPressed: () {
+                navigatorKey.currentState!.push(route);
+                routePushed = true;
+              },
+              child: const Text('Open'),
+            ),
+          ),
+        ),
+      ),
+    );
+
+    await tester.tap(find.text('Open'));
+    await tester.pump();
+    await tester.pump(const Duration(milliseconds: 100));
+
+    expect(routePushed, isTrue);
+    expect(find.byKey(const Key('fade-route-page')), findsOneWidget);
+    final fade = tester.widget<FadeTransition>(
+      find.byType(FadeTransition).last,
+    );
+    expect(fade.opacity.value, inExclusiveRange(0, 1));
+  });
+}