Improved aad token response test

Author: oldalton

IdentityCore/tests/MSIDAADTokenResponseTests.m

@@ -247,6 +247,7 @@ - (void)testInitWithJson_andRefreshToken_shouldNotTakeFieldsFromRefreshTokenAndU
                                 };
 
     MSIDRefreshToken *refreshToken = [MSIDRefreshToken new];
+    refreshToken.refreshToken = @"rt2";
 
     MSIDClientInfo *clientInfo = [MSIDClientInfo new];
     [clientInfo setValue:@"clientinfo" forKey:@"rawClientInfo"];
@@ -262,6 +263,7 @@ - (void)testInitWithJson_andRefreshToken_shouldNotTakeFieldsFromRefreshTokenAndU
     XCTAssertNil(error);
 
     XCTAssertEqualObjects(response.clientInfo.rawClientInfo, clientInfoString);
+    XCTAssertEqualObjects(response.refreshToken, @"rt");
 }
 
 @end