[英]OCMock, why can't I expect method on a protocol?
考虑下面的代码,该代码可以正常工作(loginWithEmail方法也可以正常使用):
_authenticationService = [[OCMockObject mockForClass:[AuthenticationService class]] retain];
[[_authenticationService expect] loginWithEmail:[OCMArg any] andPassword:[OCMArg any]];
与下面的代码:
_authenticationService = [[OCMockObject mockForProtocol:@protocol(AuthenticationServiceProtocol)] retain];
[[_authenticationService expect] loginWithEmail:[OCMArg any] andPassword:[OCMArg any]];
第二个代码示例在第2行失败,并显示以下错误:
*** -[NSProxy doesNotRecognizeSelector:loginWithEmail:andPassword:] called! Unknown.m:0: error: -[MigratorTest methodRedacted] : ***
-[NSProxy doesNotRecognizeSelector:loginWithEmail:andPassword:] called!
AuthenticationServiceProtocol声明该方法:
@protocol AuthenticationServiceProtocol <NSObject>
@property (nonatomic, retain) id<AuthenticationDelegate> authenticationDelegate;
- (void)loginWithEmail:(NSString *)email andPassword:(NSString *)password;
- (void)logout;
- (void)refreshToken;
@end
它是在该类中实现的:
@interface AuthenticationService : NSObject <AuthenticationServiceProtocol>
这是用于iOS的OCMock。
为什么expect
失败时的模拟是mockForProtocol
?
这很好奇。 我已将以下类添加到iOS5示例项目中:
@protocol AuthenticationServiceProtocol
- (void)loginWithEmail:(NSString *)email andPassword:(NSString *)password;
@end
@interface Foo : NSObject
{
id<AuthenticationServiceProtocol> authService;
}
- (id)initWithAuthenticationService:(id<AuthenticationServiceProtocol>)anAuthService;
- (void)doStuff;
@end
@implementation Foo
- (id)initWithAuthenticationService:(id<AuthenticationServiceProtocol>)anAuthService
{
self = [super init];
authService = anAuthService;
return self;
}
- (void)doStuff
{
[authService loginWithEmail:@"x" andPassword:@"y"];
}
@end
@implementation ProtocolTests
- (void)testTheProtocol
{
id authService = [OCMockObject mockForProtocol:@protocol(AuthenticationServiceProtocol)];
id foo = [[Foo alloc] initWithAuthenticationService:authService];
[[authService expect] loginWithEmail:[OCMArg any] andPassword:[OCMArg any]];
[foo doStuff];
[authService verify];
}
@end
当我在Xcode版本4.5(4G182)中针对iPhone 6.0模拟器运行此程序时,测试通过。 模拟对象的使用方式有何不同? 在您的情况下,_authenticationService传递到哪里? 接收者对此做了什么?
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