Web APIΛར༻͢Δ iOSΞϓϦͷςετٕ๏

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cockscomb

id:cockscomb ΞϓϦέʔγϣϯΤϯδχΞ iOSΞϓϦɾWebΞϓϦέʔγϣϯ Perl, JavaScript, Objective-C ͸ͯͳϒϩάνʔϜ WWDC 2014

͸ͯͳϒϩά Presso B!KUMA Ψʔϧζ

͸ͯͳαϚʔΠϯλʔϯ Web APIΛར༻͢ΔiOSΞϓϦ࡞੒

–id:murakaming “iOS ଆͬ͟ͱݟ͚ͨͲɺ͜͏͍͏ حྷͳίʔυ͕খ͍͞αϯϓϧͰͳ͘ Ұࣜἧ͍ͬͯΔͷ͸ຊ౰ʹوॏͩ͠ ༗Γ೉͗͢Δɻ”

–id:griffin-stewie “ͦΕͳΓʹ࣮ઓܦݧ͕͋ΔਓͰ΋ ΍ͬͯͳͦ͞͏ͩͬͨΓ஌Βͳͦ͏ͳ͜ͱΛ αϥοͱݟͤͯ͘Ε͍ͯΔ”

Web APIΛར༻͢Δ iOSΞϓϦͷςετٕ๏

Web API JSON REST·ͨ͸Appઐ༻ APIόʔδϣϯ

API is living

ੜ͖͍ͯΔAPIͷͨΊͷ ςετ

ԿΛςετ͢Δͷ͔ ظ଴Ͳ͓ΓͷHTTP request͕ൃߦ͞ΕΔ URL (ϗετ΍ύεɺΫΤϦ) HTTP method, header, body ༷ʑͳHTTP responseʹର͢Δ;Δ·͍ Τϥʔ͕ى͖ͨͱ͖

ಓ۩ • OHHTTPStubs • NTLHTTPStubServer

OHHTTPStubs • HTTPͷ௨৴Λstub͢Δ • NSURLProtocolΛར༻͍ͯ͠Δ

__block APIClient *client; __block NSURLRequest *lastRequest; __block OHHTTPStubsResponse *preferredResponse; ! beforeAll(^{ client = [APIClient sharedClient]; ! [OHHTTPStubs stubRequestsPassingTest:^BOOL(NSURLRequest *request) { if ( [request.HTTPMethod isEqual:@"GET"] && [request.URL.host isEqual:@"example.com"] && [request.URL.path isEqual:@"/api/entries.json"] ) { lastRequest = request; return YES; } return NO; } withStubResponse:^OHHTTPStubsResponse *(NSURLRequest *request) { return preferredResponse; }]; }); ! afterEach(^{ lastRequest = nil; preferredResponse = nil; }); ! afterAll(^{ [OHHTTPStubs removeAllStubs]; });

[OHHTTPStubs stubRequestsPassingTest:^BOOL(NSURLRequest *request) { if ( [request.HTTPMethod isEqual:@"GET"] && [request.URL.host isEqual:@"example.com"] && [request.URL.path isEqual:@"/api/entries.json"] ) { lastRequest = request; return YES; } return NO; } withStubResponse:^OHHTTPStubsResponse *(NSURLRequest *request) { return preferredResponse; }];

NSString *userAgent = lastRequest.allHTTPHeaderFields[@"User-Agent"]; expect([userAgent hasPrefix:@"BKUMAGirls"]).to.beTruthy(); ! ! NSURL *URL = lastRequest.URL; NSDictionary *query = [CMDQueryStringSerialization dictionaryWithQueryString:URL.query]; ! expect(query[@"entry_id"]).to.equal(@"1234567890");

preferredResponse = [OHHTTPStubsResponse responseWithFileAtPath: OHPathForFileInBundle(@"entries.json", nil) statusCode:200 headers:@{ @"Content-Type" : @"application/json", }]; ! ! preferredResponse = [OHHTTPStubsResponse responseWithJSONObject:@{ @"test" : @"ok", } statusCode:200 headers:@{ @"Content-Type" : @"application/json", }]; ! ! preferredResponse = [OHHTTPStubsResponse responseWithError: [NSError errorWithDomain:NSURLErrorDomain code:NSURLErrorNetworkConnectionLost userInfo:nil]];

OHHTTPStubs • HTTP requestͷ༷ࢠΛݟΔ͜ͱ͕Ͱ͖Δ • ೚ҙͷHTTP responseΛฦ͢͜ͱ͕Ͱ͖Δ • ΤϥʔΛൃੜͤ͞ΒΕΔ • HTTP body͸औಘͰ͖ͳ͍

NLTHTTPStubServer • ΞϓϦͷ಺෦ͰαʔόʔΛಈ͔͢ • CocoaHTTPServerΛར༻ • http://localhost:12345/

#if defined(UNIT_TEST) static NSString *const kAPIRootURLString = @"http://localhost:12345/"; #else static NSString *const kAPIRootURLString = @"http://example.com/"; #endif

__block NLTHTTPStubServer *server; __block APIClient *client; ! beforeAll(^{ server = [[NLTHTTPStubServer alloc] init]; [server startServer]; client = [APIClient sharedClient]; }); ! afterAll(^{ [server stopServer]; }); ! afterEach(^{ [server clear]; });

[[[[server expect] forPath:@"/api/bookmarks.json" HTTPMethod:@"POST"] andCheckPostBody:^(NSData *postBody) { ! NSString *body = [[NSString alloc] initWithData:postBody encoding:NSUTF8StringEncoding]; ! NSDictionary *parameters = [CMDQueryStringSerialization dictionaryWithQueryString:body]; ! expect(parameters[@"entry_id"]).to.equal(@"1234567890"); ! }] andPlainResponse:[@"1" dataUsingEncoding:NSUTF8StringEncoding]]; ! ... ! [server verify];

NLTHTTPStubServer • ࣮ࡍͷαʔόʔͱͯ͠ৼΔ෣͏ • ೚ҙͷHTTP responseΛฦ͢͜ͱ͕Ͱ͖Δ • HTTP bodyͷ༷ࢠΛݟΔ͜ͱ͕Ͱ͖Δ • Τϥʔ͸ൃੜͤ͞ΒΕͳ͍ • HTTP request͸Ұ෦औಘͰ͖ͳ͍

ಓ۩ • OHHTTPStubs • NTLHTTPStubServer

ςετͷϝϦοτ • ࣗ༝ͳHTTP response͕࡞ΕΔ • ࣮ࡍʹαʔόʔʹrequest͠ͳͯ͘Α͍ • αʔόʔαΠυͷ࣮૷Λ଴ͭඞཁ͕ͳ͍ • αʔόʔαΠυͷมߋΛࣄલʹࢼͤΔ • ͍͖ͳΓյΕΔͷΛ๷͛Δ

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