Added dynamic methods for custom attribute lookup

MacPassTests/MPTestCustomAttributeGetter.m

@@ -0,0 +1,53 @@
+//
+//  MPTestCustomAttributeGetter.m
+//  MacPassTests
+//
+//  Created by Michael Starke on 09.11.18.
+//  Copyright © 2018 HicknHack Software GmbH. All rights reserved.
+//
+
+#import <XCTest/XCTest.h>
+#import <KeePassKit/KeePassKit.h>
+
+#import "KPKEntry+MPCustomAttributeProperties.h"
+
+@interface MPTestCustomAttributeGetter : XCTestCase
+@end
+
+@implementation MPTestCustomAttributeGetter
+
+- (void)setUp {
+}
+
+- (void)testValidCustomAttribute {
+  KPKEntry *entry = [[KPKEntry alloc] init];
+  KPKAttribute *attribute1 = [[KPKAttribute alloc] initWithKey:@"custom1" value:@"value1"];
+  KPKAttribute *attribute2 = [[KPKAttribute alloc] initWithKey:@"custom2" value:@"value2"];
+  [entry addCustomAttribute:attribute1];
+  [entry addCustomAttribute:attribute2];
+  
+  SEL selector1 = NSSelectorFromString([MPCustomAttributePropertyPrefix stringByAppendingString:attribute1.key]);
+  IMP imp1 = [entry methodForSelector:selector1];
+  NSString *(*func1)(id, SEL, NSString*) = (void *)imp1;
+  NSString *value1 = func1(entry, selector1 , attribute1.key);
+  XCTAssertEqualObjects(value1, attribute1.value);
+
+  SEL selector2 = NSSelectorFromString([MPCustomAttributePropertyPrefix stringByAppendingString:attribute2.key]);
+  IMP imp2 = [entry methodForSelector:selector2];
+  NSString *(*func2)(id, SEL, NSString*) = (void *)imp2;
+  NSString *value2 = func2(entry, selector2, attribute2.key);
+  XCTAssertEqualObjects(value2, attribute2.value);
+
+  SEL selector3 = NSSelectorFromString([MPCustomAttributePropertyPrefix stringByAppendingString:@"novalidkey"]);
+  IMP imp3 = [entry methodForSelector:selector3];
+  NSString *(*func3)(id, SEL, NSString*) = (void *)imp3;
+  NSString *value3 = func3(entry, selector3, @"novalidkey");
+  XCTAssertNil(value3);
+}
+
+- (void)testInvalidCustomAttribute {
+}
+
+
+
+@end