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WebDriverAgentTests/IntegrationTests/XCUIElementHelperIntegrationTests.m

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+/**
+ * Copyright (c) 2015-present, Facebook, Inc.
+ * All rights reserved.
+ *
+ * This source code is licensed under the BSD-style license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
+#import <XCTest/XCTest.h>
+#import "XCTest/XCUIElementTypes.h"
+
+#import "FBIntegrationTestCase.h"
+#import "FBTestMacros.h"
+#import "FBElement.h"
+#import "FBElementUtils.h"
+#import "FBXCElementSnapshot.h"
+#import "XCUIElement+FBUtilities.h"
+
+@interface XCUIElementHelperIntegrationTests : FBIntegrationTestCase
+@end
+
+@implementation XCUIElementHelperIntegrationTests
+
+- (void)setUp
+{
+  [super setUp];
+  [self launchApplication];
+  [self goToAlertsPage];
+}
+
+- (void)testDescendantsFiltering
+{
+  NSArray<XCUIElement *> *buttons = self.testedApplication.buttons.allElementsBoundByIndex;
+  XCTAssertTrue(buttons.count > 0);
+  NSArray<XCUIElement *> *windows = self.testedApplication.windows.allElementsBoundByIndex;
+  XCTAssertTrue(windows.count > 0);
+  
+  NSMutableArray<XCUIElement *> *allElements = [NSMutableArray array];
+  [allElements addObjectsFromArray:buttons];
+  [allElements addObjectsFromArray:windows];
+  
+  NSMutableArray<id<FBXCElementSnapshot>> *buttonSnapshots = [NSMutableArray array];
+  [buttonSnapshots addObject:[buttons.firstObject fb_customSnapshot]];
+
+  NSArray<XCUIElement *> *result = [self.testedApplication fb_filterDescendantsWithSnapshots:buttonSnapshots
+                                                                                onlyChildren:NO];
+  XCTAssertEqual(1, result.count);
+  XCTAssertEqual([result.firstObject elementType], XCUIElementTypeButton);
+}
+
+@end