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RestKit/Specs/ObjectMapping/RKObjectSerializerSpec.m
Blake Watters 54007c78d4 Reworked Brendan Ribera's contributions around time zone handling to eliminate the use of transient 
NSDateFormatters, added a preferredDateFormatter for use when serializing dates to strings,
replaced the use of the description method for date encoding to strings with invocation of the
preferredDateFormatter, added new attribute transformation strategy from NSDate -> NSString properties
(also using the preferred date formatter), and provided customization support for date handling globally
and on a per-mapping basis. closes #200, closes #313, closes #309, closes #308
2011-09-05 17:25:43 -04:00

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//
// RKObjectSerializerSpec.m
// RestKit
//
// Created by Jeremy Ellison on 5/9/11.
// Copyright 2011 Two Toasters. All rights reserved.
//
#import "RKSpecEnvironment.h"
#import "RKObjectSerializer.h"
#import "RKMappableObject.h"
@interface RKObjectSerializerSpec : RKSpec {
}
@end
@implementation RKObjectSerializerSpec
- (void)itShouldSerializeToFormEncodedData {
NSDictionary* object = [NSDictionary dictionaryWithObjectsAndKeys:@"value1", @"key1", @"value2", @"key2", nil];
RKObjectMapping* mapping = [RKObjectMapping mappingForClass:[NSDictionary class]];
[mapping addAttributeMapping:[RKObjectAttributeMapping mappingFromKeyPath:@"key1" toKeyPath:@"key1-form-name"]];
[mapping addAttributeMapping:[RKObjectAttributeMapping mappingFromKeyPath:@"key2" toKeyPath:@"key2-form-name"]];
RKObjectSerializer* serializer = [RKObjectSerializer serializerWithObject:object mapping:mapping];
NSError* error = nil;
id<RKRequestSerializable> serialization = [serializer serializationForMIMEType:@"application/x-www-form-urlencoded" error:&error];
NSString* data = [[[NSString alloc] initWithData:[serialization HTTPBody] encoding:NSUTF8StringEncoding] autorelease];
data = [data stringByReplacingPercentEscapesUsingEncoding:NSUTF8StringEncoding];
assertThat(error, is(nilValue()));
assertThat(data, is(equalTo(@"key2-form-name=value2&key1-form-name=value1")));
}
- (void)itShouldSerializeADateToFormEncodedData {
NSDictionary* object = [NSDictionary dictionaryWithObjectsAndKeys:@"value1", @"key1", [NSDate dateWithTimeIntervalSince1970:0], @"date", nil];
RKObjectMapping* mapping = [RKObjectMapping mappingForClass:[NSDictionary class]];
[mapping addAttributeMapping:[RKObjectAttributeMapping mappingFromKeyPath:@"key1" toKeyPath:@"key1-form-name"]];
[mapping addAttributeMapping:[RKObjectAttributeMapping mappingFromKeyPath:@"date" toKeyPath:@"date-form-name"]];
RKObjectSerializer* serializer = [RKObjectSerializer serializerWithObject:object mapping:mapping];
NSError* error = nil;
id<RKRequestSerializable> serialization = [serializer serializationForMIMEType:@"application/x-www-form-urlencoded" error:&error];
NSString* data = [[[NSString alloc] initWithData:[serialization HTTPBody] encoding:NSUTF8StringEncoding] autorelease];
data = [data stringByReplacingPercentEscapesUsingEncoding:NSUTF8StringEncoding];
assertThat(error, is(nilValue()));
assertThat(data, is(equalTo(@"key1-form-name=value1&date-form-name=1970-01-01 00:00:00 +0000")));
}
- (void)itShouldSerializeADateToAStringUsingThePreferredDateFormatter {
NSDictionary* object = [NSDictionary dictionaryWithObjectsAndKeys:@"value1", @"key1", [NSDate dateWithTimeIntervalSince1970:0], @"date", nil];
RKObjectMapping* mapping = [RKObjectMapping mappingForClass:[NSDictionary class]];
NSDateFormatter *dateFormatter = [[NSDateFormatter new] autorelease];
dateFormatter.dateFormat = @"MM/dd/yyyy";
dateFormatter.timeZone = [NSTimeZone timeZoneForSecondsFromGMT:0];
mapping.preferredDateFormatter = dateFormatter;
[mapping addAttributeMapping:[RKObjectAttributeMapping mappingFromKeyPath:@"key1" toKeyPath:@"key1-form-name"]];
[mapping addAttributeMapping:[RKObjectAttributeMapping mappingFromKeyPath:@"date" toKeyPath:@"date-form-name"]];
RKObjectSerializer* serializer = [RKObjectSerializer serializerWithObject:object mapping:mapping];
NSError* error = nil;
id<RKRequestSerializable> serialization = [serializer serializationForMIMEType:@"application/x-www-form-urlencoded" error:&error];
NSString* data = [[[NSString alloc] initWithData:[serialization HTTPBody] encoding:NSUTF8StringEncoding] autorelease];
data = [data stringByReplacingPercentEscapesUsingEncoding:NSUTF8StringEncoding];
assertThat(error, is(nilValue()));
assertThat(data, is(equalTo(@"key1-form-name=value1&date-form-name=01/01/1970")));
}
- (void)itShouldSerializeADateToJSON {
NSDictionary* object = [NSDictionary dictionaryWithObjectsAndKeys:@"value1", @"key1", [NSDate dateWithTimeIntervalSince1970:0], @"date", nil];
RKObjectMapping* mapping = [RKObjectMapping mappingForClass:[NSDictionary class]];
[mapping addAttributeMapping:[RKObjectAttributeMapping mappingFromKeyPath:@"key1" toKeyPath:@"key1-form-name"]];
[mapping addAttributeMapping:[RKObjectAttributeMapping mappingFromKeyPath:@"date" toKeyPath:@"date-form-name"]];
RKObjectSerializer* serializer = [RKObjectSerializer serializerWithObject:object mapping:mapping];
NSError* error = nil;
id<RKRequestSerializable> serialization = [serializer serializationForMIMEType:@"application/json" error:&error];
NSString* data = [[[NSString alloc] initWithData:[serialization HTTPBody] encoding:NSUTF8StringEncoding] autorelease];
data = [data stringByReplacingPercentEscapesUsingEncoding:NSUTF8StringEncoding];
assertThat(error, is(nilValue()));
assertThat(data, is(equalTo(@"{\"key1-form-name\":\"value1\",\"date-form-name\":\"1970-01-01 00:00:00 +0000\"}")));
}
- (void)itShouldSerializeNSDecimalNumberAttributesToJSON {
NSDictionary* object = [NSDictionary dictionaryWithObjectsAndKeys:@"value1", @"key1", [NSDecimalNumber decimalNumberWithString:@"18274191731731.4557723623"], @"number", nil];
RKObjectMapping* mapping = [RKObjectMapping mappingForClass:[NSDictionary class]];
[mapping addAttributeMapping:[RKObjectAttributeMapping mappingFromKeyPath:@"key1" toKeyPath:@"key1-form-name"]];
[mapping addAttributeMapping:[RKObjectAttributeMapping mappingFromKeyPath:@"number" toKeyPath:@"number-form-name"]];
RKObjectSerializer* serializer = [RKObjectSerializer serializerWithObject:object mapping:mapping];
NSError* error = nil;
id<RKRequestSerializable> serialization = [serializer serializationForMIMEType:@"application/json" error:&error];
NSString* data = [[[NSString alloc] initWithData:[serialization HTTPBody] encoding:NSUTF8StringEncoding] autorelease];
data = [data stringByReplacingPercentEscapesUsingEncoding:NSUTF8StringEncoding];
assertThat(error, is(nilValue()));
assertThat(data, is(equalTo(@"{\"key1-form-name\":\"value1\",\"number-form-name\":\"18274191731731.4557723623\"}")));
}
- (void)itShouldSerializeRelationshipsToo {
NSDictionary* object = [NSDictionary dictionaryWithObjectsAndKeys:@"value1", @"key1", @"value2", @"key2",
[NSArray arrayWithObjects:
[NSDictionary dictionaryWithObjectsAndKeys:@"relationship1Value1", @"relatioship1Key1", nil],
[NSDictionary dictionaryWithObjectsAndKeys:@"relationship1Value2", @"relatioship1Key1", nil], nil], @"relationship1",
[NSDictionary dictionaryWithObjectsAndKeys:@"subValue1", @"subKey1", nil], @"relationship2",
nil];
RKObjectMapping* mapping = [RKObjectMapping mappingForClass:[NSMutableDictionary class]];
[mapping addAttributeMapping:[RKObjectAttributeMapping mappingFromKeyPath:@"key1" toKeyPath:@"key1-form-name"]];
[mapping addAttributeMapping:[RKObjectAttributeMapping mappingFromKeyPath:@"key2" toKeyPath:@"key2-form-name"]];
[mapping addAttributeMapping:[RKObjectAttributeMapping mappingFromKeyPath:@"relationship1.relatioship1Key1" toKeyPath:@"relationship1-form-name[r1k1]"]];
[mapping addAttributeMapping:[RKObjectAttributeMapping mappingFromKeyPath:@"relationship2.subKey1" toKeyPath:@"relationship2-form-name[subKey1]"]];
RKObjectSerializer* serializer = [RKObjectSerializer serializerWithObject:object mapping:mapping];
NSError* error = nil;
id<RKRequestSerializable> serialization = [serializer serializationForMIMEType:@"application/x-www-form-urlencoded" error:&error];
NSString* data = [[[NSString alloc] initWithData:[serialization HTTPBody] encoding:NSUTF8StringEncoding] autorelease];
data = [data stringByReplacingPercentEscapesUsingEncoding:NSUTF8StringEncoding];
assertThat(error, is(nilValue()));
assertThat(data, is(equalTo(@"key1-form-name=value1&relationship1-form-name[r1k1][]=relationship1Value1&relationship1-form-name[r1k1][]=relationship1Value2&key2-form-name=value2&relationship2-form-name[subKey1]=subValue1")));
}
- (void)itShouldSerializeToJSON {
NSDictionary* object = [NSDictionary dictionaryWithObjectsAndKeys:@"value1", @"key1", @"value2", @"key2", nil];
RKObjectMapping* mapping = [RKObjectMapping mappingForClass:[NSDictionary class]];
[mapping addAttributeMapping:[RKObjectAttributeMapping mappingFromKeyPath:@"key1" toKeyPath:@"key1-form-name"]];
[mapping addAttributeMapping:[RKObjectAttributeMapping mappingFromKeyPath:@"key2" toKeyPath:@"key2-form-name"]];
RKObjectSerializer* serializer = [RKObjectSerializer serializerWithObject:object mapping:mapping];
NSError* error = nil;
id<RKRequestSerializable> serialization = [serializer serializationForMIMEType:@"application/json" error:&error];
NSString* data = [[[NSString alloc] initWithData:[serialization HTTPBody] encoding:NSUTF8StringEncoding] autorelease];
data = [data stringByReplacingPercentEscapesUsingEncoding:NSUTF8StringEncoding];
assertThat(error, is(nilValue()));
assertThat(data, is(equalTo(@"{\"key2-form-name\":\"value2\",\"key1-form-name\":\"value1\"}")));
}
- (void)itShouldSetReturnNilIfItDoesNotFindAnythingToSerialize {
NSDictionary* object = [NSDictionary dictionaryWithObjectsAndKeys:@"value1", @"key1", @"value2", @"key2", nil];
RKObjectMapping* mapping = [RKObjectMapping mappingForClass:[NSDictionary class]];
[mapping addAttributeMapping:[RKObjectAttributeMapping mappingFromKeyPath:@"key12123" toKeyPath:@"key1-form-name"]];
RKObjectSerializer* serializer = [RKObjectSerializer serializerWithObject:object mapping:mapping];
NSError* error = nil;
id<RKRequestSerializable> serialization = [serializer serializationForMIMEType:@"application/json" error:&error];
assertThat(serialization, is(nilValue()));
}
- (void)itShouldSerializeNestedObjectsContainingDatesToJSON {
RKMappableObject* object = [[RKMappableObject new] autorelease];
object.stringTest = @"The string";
RKMappableAssociation* association = [[RKMappableAssociation new] autorelease];
association.date = [NSDate dateWithTimeIntervalSince1970:0];
object.hasOne = association;
// Setup object mappings
RKObjectMapping* objectMapping = [RKObjectMapping mappingForClass:[NSMutableDictionary class]];
[objectMapping mapAttributes:@"stringTest", nil];
RKObjectMapping* relationshipMapping = [RKObjectMapping mappingForClass:[NSMutableDictionary class]];
[relationshipMapping mapAttributes:@"date", nil];
[objectMapping mapRelationship:@"hasOne" withMapping:relationshipMapping];
// Serialize
RKObjectSerializer* serializer = [RKObjectSerializer serializerWithObject:object mapping:objectMapping];
NSError* error = nil;
id<RKRequestSerializable> serialization = [serializer serializationForMIMEType:@"application/json" error:&error];
assertThat(error, is(nilValue()));
NSString* data = [[[NSString alloc] initWithData:[serialization HTTPBody] encoding:NSUTF8StringEncoding] autorelease];
data = [data stringByReplacingPercentEscapesUsingEncoding:NSUTF8StringEncoding];
assertThat(data, is(equalTo(@"{\"stringTest\":\"The string\",\"hasOne\":{\"date\":\"1970-01-01 00:00:00 +0000\"}}")));
}
- (void)itShouldEncloseTheSerializationInAContainerIfRequested {
NSDictionary* object = [NSDictionary dictionaryWithObjectsAndKeys:@"value1", @"key1", @"value2", @"key2", nil];
RKObjectMapping* mapping = [RKObjectMapping mappingForClass:[NSDictionary class]];
mapping.rootKeyPath = @"stuff";
[mapping addAttributeMapping:[RKObjectAttributeMapping mappingFromKeyPath:@"key1" toKeyPath:@"key1-form-name"]];
[mapping addAttributeMapping:[RKObjectAttributeMapping mappingFromKeyPath:@"key2" toKeyPath:@"key2-form-name"]];
RKObjectSerializer* serializer = [RKObjectSerializer serializerWithObject:object mapping:mapping];
NSError* error = nil;
id<RKRequestSerializable> serialization = [serializer serializationForMIMEType:@"application/x-www-form-urlencoded" error:&error];
NSString* data = [[[NSString alloc] initWithData:[serialization HTTPBody] encoding:NSUTF8StringEncoding] autorelease];
data = [data stringByReplacingPercentEscapesUsingEncoding:NSUTF8StringEncoding];
assertThat(error, is(nilValue()));
assertThat(data, is(equalTo(@"stuff[key2-form-name]=value2&stuff[key1-form-name]=value1")));
}
- (void)itShouldSerializeToManyRelationships {
RKMappableObject* object = [[RKMappableObject new] autorelease];
object.stringTest = @"The string";
RKMappableAssociation* association = [[RKMappableAssociation new] autorelease];
association.date = [NSDate dateWithTimeIntervalSince1970:0];
object.hasMany = [NSSet setWithObject:association];
// Setup object mappings
RKObjectMapping* objectMapping = [RKObjectMapping mappingForClass:[NSMutableDictionary class]];
[objectMapping mapAttributes:@"stringTest", nil];
RKObjectMapping* relationshipMapping = [RKObjectMapping mappingForClass:[NSMutableDictionary class]];
[relationshipMapping mapAttributes:@"date", nil];
[objectMapping mapRelationship:@"hasMany" withMapping:relationshipMapping];
// Serialize
RKObjectSerializer* serializer = [RKObjectSerializer serializerWithObject:object mapping:objectMapping];
NSError* error = nil;
id<RKRequestSerializable> serialization = [serializer serializationForMIMEType:@"application/json" error:&error];
assertThat(error, is(nilValue()));
NSString* data = [[[NSString alloc] initWithData:[serialization HTTPBody] encoding:NSUTF8StringEncoding] autorelease];
data = [data stringByReplacingPercentEscapesUsingEncoding:NSUTF8StringEncoding];
assertThat(data, is(equalTo(@"{\"hasMany\":[{\"date\":\"1970-01-01 00:00:00 +0000\"}],\"stringTest\":\"The string\"}")));
}
- (void)itShouldSerializeAnNSNumberContainingABooleanToTrueFalseIfRequested {
NSDictionary* object = [NSDictionary dictionaryWithObjectsAndKeys:@"value1", @"key1", [NSNumber numberWithBool:YES], @"boolean", nil];
RKObjectMapping* mapping = [RKObjectMapping mappingForClass:[NSDictionary class]];
RKObjectAttributeMapping* attributeMapping = [RKObjectAttributeMapping mappingFromKeyPath:@"boolean" toKeyPath:@"boolean-value"];
[mapping addAttributeMapping:attributeMapping];
RKObjectSerializer* serializer = [RKObjectSerializer serializerWithObject:object mapping:mapping];
NSError* error = nil;
id<RKRequestSerializable> serialization = [serializer serializationForMIMEType:@"application/json" error:&error];
NSString* data = [[[NSString alloc] initWithData:[serialization HTTPBody] encoding:NSUTF8StringEncoding] autorelease];
data = [data stringByReplacingPercentEscapesUsingEncoding:NSUTF8StringEncoding];
assertThat(error, is(nilValue()));
assertThat(data, is(equalTo(@"{\"boolean-value\":true}")));
}
@end
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