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diff --git a/Frameworks/SPMySQLFramework/SPMySQL Unit Tests/DataConversion_Tests.m b/Frameworks/SPMySQLFramework/SPMySQL Unit Tests/DataConversion_Tests.m
new file mode 100644
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+++ b/Frameworks/SPMySQLFramework/SPMySQL Unit Tests/DataConversion_Tests.m
@@ -0,0 +1,71 @@
+//
+//  DataConversion_Tests.m
+//  SPMySQLFramework
+//
+//  Created by Max Lohrmann on 01.10.15.
+//  Copyright (c) 2015 Max Lohrmann. All rights reserved.
+//
+//  Permission is hereby granted, free of charge, to any person
+//  obtaining a copy of this software and associated documentation
+//  files (the "Software"), to deal in the Software without
+//  restriction, including without limitation the rights to use,
+//  copy, modify, merge, publish, distribute, sublicense, and/or sell
+//  copies of the Software, and to permit persons to whom the
+//  Software is furnished to do so, subject to the following
+//  conditions:
+//
+//  The above copyright notice and this permission notice shall be
+//  included in all copies or substantial portions of the Software.
+//
+//  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+//  EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+//  OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+//  NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+//  HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+//  WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+//  FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+//  OTHER DEALINGS IN THE SOFTWARE.
+//
+//  More info at <https://github.com/sequelpro/sequelpro>
+
+@interface DataConversion_Tests : XCTestCase
+
+- (void)test_bitStringWithBytes;
+
+@end
+
+@implementation DataConversion_Tests
+
+- (void)test_bitStringWithBytes
+{
+	// BIT(1)
+	{
+		unsigned char y = 1;
+		unsigned char n = 0;
+		XCTAssertEqualObjects(_bitStringWithBytes(&y,sizeof(y),1), @"1");
+		XCTAssertEqualObjects(_bitStringWithBytes(&n,sizeof(n),0), @"0");
+	}
+	// BIT(3)
+	{
+		const char input[] = {5};
+		NSUInteger bitSize = 3;
+		NSString *res = _bitStringWithBytes(input,sizeof(input),bitSize);
+		XCTAssertEqualObjects(res, @"101");
+	}
+	// BIT(16)
+	{
+		const char input[] = {0xcc,0xf0};
+		NSUInteger bitSize = 16;
+		NSString *res = _bitStringWithBytes(input,sizeof(input),bitSize);
+		XCTAssertEqualObjects(res, @"1100110011110000");
+	}
+	// BIT(20)
+	{
+		const char input[] = {0x0f,0xcc,0xf0};
+		NSUInteger bitSize = 20;
+		NSString *res = _bitStringWithBytes(input,sizeof(input),bitSize);
+		XCTAssertEqualObjects(res, @"11111100110011110000");
+	}
+}
+
+@end