OCMock：测试一个调用NSDictionary参数的方法

Question

我有以下课程：

@interface ReportsArchiver

-(void)fileReport:(NSDictionary*)reports;

@end

@interface OfficeManager

@property (nonatomic) ReportsArchiver* reportsArchiver;
-(void) reportIncident:(NSString*)name description:(NSString*)description;

@end

使用OCMock我想在调用[officeManager reportIncident:@"fire alarm" description: @"false fire alarm"]时进行测试，然后使用字典[officeManager.reportsArchiver fileReport]调用@{@"name": @"fire alarm", @"description": @"false fire alarm"}。

到目前为止，我已经编写了以下代码：

OfficeManager* officeManager = [OfficeManager new];
id reportsArchiverMock = OCMClassMock([ReportsArchiver class]);
officeManager.reportsArchiver = reportsArchiverMock;
NSDictionary* expectedReportDictionary = @{@"name": @"fire alarm", @"description": @"false fire alarm"};

[officeManager reportIncident:@"fire alarm" description: @"false fire alarm"];

// This call will fail because it checks for object equality, not dictionary equality.    
OCMVerify([reportsArchiverMock fileReport:expectedReportDictionary]);

如何验证使用OCMock使用相同的NSDictionary调用[reportsArchiverMock fileReport:{(NSDictionary*)]？

Answer 1

从那时起，我从Twitter获得了@wolffan和@catehstn的建议，以下是我找到的解决方案。

1. 使用OCMExpect - 与OCMVerify不同，OCMExpect正确地比较NSDictionaries。这是我发现的最干净的解决方案。

   OfficeManager* officeManager = [OfficeManager new];
   id reportsArchiverMock = OCMClassMock([ReportsArchiver class]);
   officeManager.reportsArchiver = reportsArchiverMock;
   NSDictionary* expectedReportDictionary = @{@"name": @"fire alarm", @"description": @"false fire alarm"};
   
   OCMExpect([reportsArchiverMock fileReport:expectedReportDictionary])
   [officeManager reportIncident:@"fire alarm" description: @"false fire alarm"];
   
   OCMVerifyAll(reportsArchiverMock);
   

2. 使用OCMStub并检查回调中的参数。这是一个非常混乱的解决方案。

OfficeManager* officeManager = [OfficeManager new]
id reportsArchiverMock = OCMClassMock([ReportsArchiver class]);
officeManager.reportsArchiver = reportsArchiverMock;
NSDictionary* expectedReportDictionary = @{@"name": @"fire alarm", @"description": @"false fire alarm"};            

void (^reportIncidentInvocation)(NSInvocation *) = ^(NSInvocation *invocation) {
       __unsafe_unretained NSInvocationOperation *reportDictionary;
       [invocation getArgument: &reportDictionary atIndex: 2];
       XCTAssertTrue([expectedPropertiesCollection isEqualToDictionary:(NSDictionary*)reportDictionary]);
    };
OCMStub([officeManager reportIncident:[OCMArg any]]).andDo(reportIncidentInvocation);

OCMVerify([reportsArchiverMock fileReport:expectedReportDictionary]);