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WebDriverAgentTests/UnitTests/NSExpressionFBFormatTests.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 "NSExpression+FBFormat.h"
+#import "FBElementUtils.h"
+
+@interface NSExpressionFBFormatTests : XCTestCase
+@end
+
+@implementation NSExpressionFBFormatTests
+
+- (void)testFormattingForExistingProperty
+{
+  NSExpression *expr = [NSExpression expressionWithFormat:@"wdName"];
+  NSExpression *prop = [NSExpression fb_wdExpressionWithExpression:expr];
+  XCTAssertEqualObjects([prop keyPath], @"wdName");
+}
+
+- (void)testFormattingForExistingPropertyShortcut
+{
+  NSExpression *expr = [NSExpression expressionWithFormat:@"visible"];
+  NSExpression *prop = [NSExpression fb_wdExpressionWithExpression:expr];
+  XCTAssertEqualObjects([prop keyPath], @"isWDVisible");
+}
+
+- (void)testFormattingForValidExpressionWOKeys
+{
+  NSExpression *expr = [NSExpression expressionWithFormat:@"1"];
+  NSExpression *prop = [NSExpression fb_wdExpressionWithExpression:expr];
+  XCTAssertEqualObjects([prop constantValue], [NSNumber numberWithInt:1]);
+}
+
+- (void)testFormattingForExistingComplexProperty
+{
+  NSExpression *expr = [NSExpression expressionWithFormat:@"wdRect.x"];
+  NSExpression *prop = [NSExpression fb_wdExpressionWithExpression:expr];
+  XCTAssertEqualObjects([prop keyPath], @"wdRect.x");
+}
+
+- (void)testFormattingForExistingComplexPropertyWOPrefix
+{
+  NSExpression *expr = [NSExpression expressionWithFormat:@"rect.x"];
+  NSExpression *prop = [NSExpression fb_wdExpressionWithExpression:expr];
+  XCTAssertEqualObjects([prop keyPath], @"wdRect.x");
+}
+
+- (void)testFormattingForPredicateWithUnknownKey
+{
+  NSExpression *expr = [NSExpression expressionWithFormat:@"title"];
+  XCTAssertThrowsSpecificNamed([NSExpression fb_wdExpressionWithExpression:expr], NSException, FBUnknownAttributeException);
+}
+
+@end