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//
// GTMNSScanner+JSONTest.m
//
// Copyright 2005-2008 Google Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License"); you may not
// use this file except in compliance with the License. You may obtain a copy
// of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
// License for the specific language governing permissions and limitations under
// the License.
//
#import "GTMSenTestCase.h"
#import "GTMNSScanner+JSON.h"
@interface GTMNSScanner_JSONTest : GTMTestCase
@end
struct {
NSString *testString_;
NSString *resultString_;
BOOL isObject_;
} testStrings[] = {
{ @"", nil, NO },
{ @"\"Empty String\"", nil, NO },
{ @"[\"Unclosed array\"", nil, NO },
{ @"[\"escape at end of unfinished string\\", nil, NO },
{ @"junk, [\"Unclosed array with junk before\"", nil, NO },
{ @"\"Unopened array\"]", nil, NO },
{ @"\"Unopened array with junk after\"] junk", nil, NO },
{ @"[\"array\"]", @"[\"array\"]", NO },
{ @"junk [\"array with junk\"]", @"[\"array with junk\"]", NO },
{ @"[\"array with junk\"], junk", @"[\"array with junk\"]", NO },
{ @"[[[\"nested array\"]]]", @"[[[\"nested array\"]]]", NO },
{ @"[[[\"badly nested array\"]]", nil, NO },
{ @"[[[\"over nested array\"]]]]", @"[[[\"over nested array\"]]]", NO },
{ @"[{]", @"[{]", NO },
{ @"[\"closer in quotes\":\"]\"]", @"[\"closer in quotes\":\"]\"]", NO },
{ @"[\"escaped closer\":\\]]", @"[\"escaped closer\":\\]", NO },
{ @"[\"double escape\":\\\\]", @"[\"double escape\":\\\\]", NO },
{ @"[\"doub esc quote\":\"\\\"]\"]", @"[\"doub esc quote\":\"\\\"]\"]", NO },
{ @"[\"opener in quotes\":\"[\"]", @"[\"opener in quotes\":\"[\"]", NO },
{ @"[\"escaped opener\":\\[]", nil, NO },
{ @"[\"escaped opener\":\\[]]", @"[\"escaped opener\":\\[]]", NO },
{ @"[\"doub esc quote\":\"\\\"[\"]", @"[\"doub esc quote\":\"\\\"[\"]", NO },
{ @"{\"Unclosed object\"", nil, YES },
{ @"junk, {\"Unclosed object with junk before\"", nil, YES },
{ @"\"Unopened object\"}", nil, YES },
{ @"\"Unopened object with junk after\"} junk", nil, YES },
{ @"{\"object\"}", @"{\"object\"}", YES },
{ @"junk, {\"object with junk\"}", @"{\"object with junk\"}", YES },
{ @"{\"object with junk\"}, junk", @"{\"object with junk\"}", YES },
{ @"{{{\"nested object\"}}}", @"{{{\"nested object\"}}}", YES },
{ @"{{{\"badly nested object\"}}", nil, YES },
{ @"{{{\"over nested object\"}}}}", @"{{{\"over nested object\"}}}", YES },
{ @"{[}", @"{[}", YES },
{ @"{\"closer in quotes\":\"}\"}", @"{\"closer in quotes\":\"}\"}", YES },
{ @"{\"escaped closer\":\\}}", @"{\"escaped closer\":\\}", YES },
{ @"{\"double escape\":\\\\}", @"{\"double escape\":\\\\}", YES },
{ @"{\"doub esc quote\":\"\\\"}\"}", @"{\"doub esc quote\":\"\\\"}\"}", YES },
{ @"{\"opener in quotes\":\"{\"}", @"{\"opener in quotes\":\"{\"}", YES },
{ @"{\"escaped opener\":\\{}", nil, YES },
{ @"{\"escaped opener\":\\{}}", @"{\"escaped opener\":\\{}}", YES },
{ @"{\"doub esc quote\":\"\\\"{\"}", @"{\"doub esc quote\":\"\\\"{\"}", YES },
};
@implementation GTMNSScanner_JSONTest
- (void)testJSONObject {
NSCharacterSet *set = [[NSCharacterSet illegalCharacterSet] invertedSet];
for (size_t i = 0; i < sizeof(testStrings) / sizeof(testStrings[0]); ++i) {
NSScanner *scanner
= [NSScanner scannerWithString:testStrings[i].testString_];
[scanner setCharactersToBeSkipped:set];
NSString *array = nil;
BOOL goodArray = [scanner gtm_scanJSONArrayString:&array];
scanner = [NSScanner scannerWithString:testStrings[i].testString_];
[scanner setCharactersToBeSkipped:set];
NSString *object = nil;
BOOL goodObject = [scanner gtm_scanJSONObjectString:&object];
if (testStrings[i].resultString_) {
if (testStrings[i].isObject_) {
XCTAssertEqualStrings(testStrings[i].resultString_,
object, @"Test String: %@",
testStrings[i].testString_);
XCTAssertNil(array, @"Test String: %@", testStrings[i].testString_);
XCTAssertTrue(goodObject, @"Test String: %@",
testStrings[i].testString_);
XCTAssertFalse(goodArray, @"Test String: %@",
testStrings[i].testString_);
} else {
XCTAssertEqualStrings(testStrings[i].resultString_, array,
@"Test String: %@", testStrings[i].testString_);
XCTAssertNil(object, @"Test String: %@", testStrings[i].testString_);
XCTAssertTrue(goodArray, @"Test String: %@", testStrings[i].testString_);
XCTAssertFalse(goodObject, @"Test String: %@",
testStrings[i].testString_);
}
} else {
XCTAssertNil(object, @"Test String: %@", testStrings[i].testString_);
XCTAssertNil(array, @"Test String: %@", testStrings[i].testString_);
XCTAssertFalse(goodArray, @"Test String: %@", testStrings[i].testString_);
XCTAssertFalse(goodObject, @"Test String: %@", testStrings[i].testString_);
}
}
}
- (void)testScanningCharacters {
NSCharacterSet *alphaSet = [NSCharacterSet alphanumericCharacterSet];
NSString *testString = @"asdfasdf[]:,";
NSScanner *scanner = [NSScanner scannerWithString:testString];
[scanner setCharactersToBeSkipped:alphaSet];
NSString *array = nil;
XCTAssertTrue([scanner gtm_scanJSONArrayString:&array]);
XCTAssertEqualStrings(array, @"[]");
NSString *nextValue = nil;
XCTAssertTrue([scanner scanString:@":," intoString:&nextValue]);
XCTAssertEqualStrings(@":,", nextValue);
scanner = [NSScanner scannerWithString:testString];
XCTAssertFalse([scanner gtm_scanJSONArrayString:&array]);
}
@end
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