AsyncDisplayKit/AsyncDisplayKitTests/ArrayDiffingTests.m at master · jschmid/AsyncDisplayKit · GitHub

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// ArrayDiffingTests.m

// AsyncDisplayKit

// Created by Levi McCallum on 1/29/16.

#import <XCTest/XCTest.h>

#import "NSArray+Diffing.h"

@interface NSArray (ArrayDiffingTests)

- (NSIndexSet *)_asdk_commonIndexesWithArray:(NSArray *)array compareBlock:(BOOL (^)(id lhs, id rhs))comparison;

@end

@interface ArrayDiffingTests : XCTestCase

@end

@implementation ArrayDiffingTests

- (void)testDiffingCommonIndexes

{

NSArray<NSArray *> *tests = @[

@[@"bob", @"alice", @"dave"],

@[@"bob", @"alice", @"dave", @"gary"],

@[@0, @1, @2]

@[@"bob", @"alice", @"dave"],

@[@"bob", @"gary", @"dave"],

@[@0, @2]

@[@"bob", @"alice"],

@[@"gary", @"dave"],

@[],

@[@"bob", @"alice", @"dave"],

@[],

@[@"bob", @"alice", @"dave"],

@[],

];

for (NSArray *test in tests) {

NSIndexSet *indexSet = [test[0] _asdk_commonIndexesWithArray:test[1] compareBlock:^BOOL(id lhs, id rhs) {

return [lhs isEqual:rhs];

}];

for (NSNumber *index in (NSArray *)test[2]) {

XCTAssert([indexSet containsIndex:[index integerValue]]);

}

- (void)testDiffingInsertionsAndDeletions {

NSArray<NSArray *> *tests = @[

@[@"bob", @"alice", @"dave"],

@[@"bob", @"alice", @"dave", @"gary"],

@[@3],

@[],

@[@"bob", @"alice", @"dave"],

@[@"bob", @"gary", @"alice", @"dave"],

@[@1],

@[],

@[@"bob", @"alice", @"dave"],

@[@"bob", @"alice"],

@[],

@[@2],

@[@"bob", @"alice", @"dave"],

@[],

@[@0, @1, @2],

@[@"bob", @"alice", @"dave"],

@[@"gary", @"alice", @"dave", @"jack"],

@[@0, @3],

@[@0],

@[@"bob", @"alice", @"dave", @"judy", @"lynda", @"tony"],

@[@"gary", @"bob", @"suzy", @"tony"],

@[@0, @2],

@[@1, @2, @3, @4],

@[@"bob", @"alice", @"dave", @"judy"],

@[@"judy", @"dave", @"alice", @"bob"],

@[@1, @2, @3],

@[@0, @1, @2],

];

for (NSArray *test in tests) {

NSIndexSet *insertions, *deletions;

[test[0] asdk_diffWithArray:test[1] insertions:&insertions deletions:&deletions];

for (NSNumber *index in (NSArray *)test[2]) {

XCTAssert([insertions containsIndex:[index integerValue]]);

}

for (NSNumber *index in (NSArray *)test[3]) {

XCTAssert([deletions containsIndex:[index integerValue]]);

}

@end

AsyncDisplayKit/AsyncDisplayKitTests/ArrayDiffingTests.m at master · jschmid/AsyncDisplayKit · GitHub

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