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WebDriverAgentTests/UnitTests/FBXMLSafeStringTests.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 "NSString+FBXMLSafeString.h"
+
+@interface FBXMLSafeStringTests : XCTestCase
+@end
+
+@implementation FBXMLSafeStringTests
+
+- (void)testSafeXmlStringTransformationWithEmptyReplacement {
+  NSString *withInvalidChar = [NSString stringWithFormat:@"bla%@", @"\uFFFF"];
+  NSString *withoutInvalidChar = @"bla";
+  XCTAssertNotEqualObjects(withInvalidChar, withoutInvalidChar);
+  XCTAssertEqualObjects([withInvalidChar fb_xmlSafeStringWithReplacement:@""], withoutInvalidChar);
+}
+
+- (void)testSafeXmlStringTransformationWithNonEmptyReplacement {
+  NSString *withInvalidChar = [NSString stringWithFormat:@"bla%@", @"\uFFFF"];
+  XCTAssertEqualObjects([withInvalidChar fb_xmlSafeStringWithReplacement:@"1"], @"bla1");
+}
+
+- (void)testSafeXmlStringTransformationWithSmileys {
+  NSString *validString = @"Yo👿";
+  XCTAssertEqualObjects([validString fb_xmlSafeStringWithReplacement:@""], validString);
+}
+
+@end