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WebDriverAgentTests/UnitTests_tvOS/FBTVNavigationTrackerTests.m

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+/**
+ * Copyright (c) 2018-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 "XCUIElementDouble.h"
+#import "FBTVNavigationTracker.h"
+#import "FBTVNavigationTracker-Private.h"
+
+@interface FBTVNavigationTrackerTests : XCTestCase
+@end
+
+@implementation FBTVNavigationTrackerTests
+
+- (void)testHorizontalDirectionWithItemShouldBeRight
+{
+  XCUIElementDouble *el1 = XCUIElementDouble.new;
+
+  FBTVNavigationItem *item = [FBTVNavigationItem itemWithUid:@"123456789"];
+  FBTVNavigationTracker *tracker = [FBTVNavigationTracker trackerWithTargetElement:(XCUIElement *)el1];
+
+  FBTVDirection direction = [tracker horizontalDirectionWithItem:item andDelta:0.1];
+  XCTAssertEqual(FBTVDirectionRight, direction);
+}
+
+- (void)testHorizontalDirectionWithItemShouldBeLeft
+{
+  XCUIElementDouble *el1 = XCUIElementDouble.new;
+
+  FBTVNavigationItem *item = [FBTVNavigationItem itemWithUid:@"123456789"];
+  FBTVNavigationTracker *tracker = [FBTVNavigationTracker trackerWithTargetElement:(XCUIElement *)el1];
+
+  FBTVDirection direction = [tracker horizontalDirectionWithItem:item andDelta:-0.1];
+  XCTAssertEqual(FBTVDirectionLeft, direction);
+}
+
+- (void)testHorizontalDirectionWithItemShouldBeNone
+{
+  XCUIElementDouble *el1 = XCUIElementDouble.new;
+
+  FBTVNavigationItem *item = [FBTVNavigationItem itemWithUid:@"123456789"];
+  FBTVNavigationTracker *tracker = [FBTVNavigationTracker trackerWithTargetElement:(XCUIElement *)el1];
+
+  FBTVDirection direction = [tracker horizontalDirectionWithItem:item andDelta:DBL_EPSILON];
+  XCTAssertEqual(FBTVDirectionNone, direction);
+}
+
+- (void)testVerticalDirectionWithItemShouldBeDown
+{
+  XCUIElementDouble *el1 = XCUIElementDouble.new;
+
+  FBTVNavigationItem *item = [FBTVNavigationItem itemWithUid:@"123456789"];
+  FBTVNavigationTracker *tracker = [FBTVNavigationTracker trackerWithTargetElement:(XCUIElement *)el1];
+
+  FBTVDirection direction = [tracker verticalDirectionWithItem:item andDelta:0.1];
+  XCTAssertEqual(FBTVDirectionDown, direction);
+}
+
+- (void)testVerticalDirectionWithItemShouldBeUp
+{
+  XCUIElementDouble *el1 = XCUIElementDouble.new;
+
+  FBTVNavigationItem *item = [FBTVNavigationItem itemWithUid:@"123456789"];
+  FBTVNavigationTracker *tracker = [FBTVNavigationTracker trackerWithTargetElement:(XCUIElement *)el1];
+
+  FBTVDirection direction = [tracker verticalDirectionWithItem:item andDelta:-0.1];
+  XCTAssertEqual(FBTVDirectionUp, direction);
+}
+
+- (void)testVerticalDirectionWithItemShouldBeNone
+{
+  XCUIElementDouble *el1 = XCUIElementDouble.new;
+
+  FBTVNavigationItem *item = [FBTVNavigationItem itemWithUid:@"123456789"];
+  FBTVNavigationTracker *tracker = [FBTVNavigationTracker trackerWithTargetElement:(XCUIElement *)el1];
+
+  FBTVDirection direction = [tracker verticalDirectionWithItem:item andDelta:DBL_EPSILON];
+  XCTAssertEqual(FBTVDirectionNone, direction);
+}
+
+@end