switchToLatest so that the delayed trending code doesn't override the search

GiphySearch/HomeViewModel.swift

@@ -32,7 +32,8 @@ class HomeViewModel {
             .switchLatest()
         
         isSearching.asObservable()
-            .flatMap({ $0 ? searching : trending })
+            .map({ $0 ? searching : trending })
+            .switchLatest()
             .subscribeNext({[unowned self] in
                 self.giphys.value = $0
             })

GiphySearchUITests/GiphySearchUITests.swift

@@ -31,6 +31,11 @@ class GiphySearchUITests: XCTestCase {
     func testExample() {
         // Use recording to get started writing UI tests.
         // Use XCTAssert and related functions to verify your tests produce the correct results.
+        
+        let app = XCUIApplication()
+        app.searchFields["Search"].tap()
+        app.typeText("hello\r")
+        app.buttons["Cancel"].tap()
     }
     
 }