fix the problem that value and property type are unmatched after conversions. (#742)

Author: wolfcon

MJExtension/NSObject+MJKeyValue.m

@@ -209,7 +209,10 @@ - (instancetype)mj_setKeyValues:(id)keyValues context:(NSManagedObjectContext *)
                 if (![value isKindOfClass:[NSDecimalNumber class]]) {
                     value = [NSDecimalNumber decimalNumberWithDecimal:[((NSNumber *)value) decimalValue]];
                 }
-            } else if (propertyClass && ![value isKindOfClass:propertyClass]) { // value和property类型不匹配
+            }
+            
+            // 经过转换后, 最终检查 value 与 property 是否匹配
+            if (propertyClass && ![value isKindOfClass:propertyClass]) {
                 value = nil;
             }
 

MJExtensionTests/MJExtensionTests.m

@@ -25,6 +25,48 @@ @interface MJExtensionTests : XCTestCase
 
 @implementation MJExtensionTests
 
+#pragma mark 类型不匹配类型 -> 模型
+- (void)testJSON2ModelUnmatched {
+    // 1.定义一个字典
+    NSDictionary *dict = @{
+                           @"name" : @[],
+                           @"icon" : @"lufy.png",
+                           @"age" : @"2147483647",
+                           @"age2": @"4294967295",
+                           @"height" : @1.55,
+                           @"money" : @"100.7777777",
+                           @"sex" : @(SexFemale),
+                           @"gay" : @"1",
+                           @"speed" : @"120.5",
+                           @"identifier" : @"9223372036854775807",
+                           @"identifier2" : @"18446744073709551615",
+                           @"price" : @"20.3",
+                           @"rich" : @"2",
+                           @"collect" : @"40个",
+                           @"alien": @"yr Joking"
+                           };
+    
+    // 2.将字典转为MJUser模型
+    MJUser *user = [MJUser mj_objectWithKeyValues:dict];
+    
+    // 3.检测
+    XCTAssert(!user.name);
+    XCTAssert([user.icon isEqual:@"lufy.png"]);
+    XCTAssert(user.age == INT_MAX);
+    XCTAssert(user.age2 == UINT_MAX);
+    XCTAssert([user.height isEqualToNumber:@(1.55)]);
+    XCTAssert([user.money compare:[NSDecimalNumber decimalNumberWithString:@"100.7777777"]] == NSOrderedSame);
+    XCTAssert(user.sex == SexFemale);
+    XCTAssert(user.gay);
+    XCTAssert(user.speed == 120);
+    XCTAssert(user.identifier == LONG_LONG_MAX);
+    XCTAssert(user.identifier2 == ULONG_LONG_MAX);
+    XCTAssert(user.price == 20.3);
+    XCTAssert(user.rich);
+    XCTAssert(user.collect == 40);
+    XCTAssert(!user.alien);
+}
+
 #pragma mark 简单的字典 -> 模型
 - (void)testJSON2Model {
     // 1.定义一个字典