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9d07336c75
The issue was: The left operand of '>=' is a garbage value in else if check for lengths[i+1][j] ... I had to rewrite the algorithm to quiet the static analyzer.
123 lines
2.7 KiB
Objective-C
123 lines
2.7 KiB
Objective-C
//
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// ArrayDiffingTests.m
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// AsyncDisplayKit
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//
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// Created by Levi McCallum on 1/29/16.
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// Copyright © 2016 Facebook. All rights reserved.
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//
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#import <XCTest/XCTest.h>
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#import "NSArray+Diffing.h"
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@interface NSArray (ArrayDiffingTests)
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- (NSIndexSet *)_asdk_commonIndexesWithArray:(NSArray *)array compareBlock:(BOOL (^)(id lhs, id rhs))comparison;
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@end
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@interface ArrayDiffingTests : XCTestCase
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@end
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@implementation ArrayDiffingTests
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- (void)testDiffingCommonIndexes
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{
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NSArray<NSArray *> *tests = @[
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@[
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@[@"bob", @"alice", @"dave"],
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@[@"bob", @"alice", @"dave", @"gary"],
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@[@0, @1, @2]
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],
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@[
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@[@"bob", @"alice", @"dave"],
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@[@"bob", @"gary", @"dave"],
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@[@0, @2]
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],
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@[
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@[@"bob", @"alice"],
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@[@"gary", @"dave"],
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@[],
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],
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@[
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@[@"bob", @"alice", @"dave"],
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@[],
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@[],
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],
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@[
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@[],
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@[@"bob", @"alice", @"dave"],
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@[],
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],
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];
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for (NSArray *test in tests) {
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NSIndexSet *indexSet = [test[0] _asdk_commonIndexesWithArray:test[1] compareBlock:^BOOL(id lhs, id rhs) {
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return [lhs isEqual:rhs];
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}];
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for (NSNumber *index in (NSArray *)test[2]) {
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XCTAssert([indexSet containsIndex:[index integerValue]]);
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}
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}
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}
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- (void)testDiffingInsertionsAndDeletions {
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NSArray<NSArray *> *tests = @[
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@[
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@[@"bob", @"alice", @"dave"],
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@[@"bob", @"alice", @"dave", @"gary"],
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@[@3],
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@[],
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],
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@[
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@[@"bob", @"alice", @"dave"],
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@[@"bob", @"gary", @"alice", @"dave"],
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@[@1],
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@[],
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],
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@[
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@[@"bob", @"alice", @"dave"],
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@[@"bob", @"alice"],
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@[],
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@[@2],
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],
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@[
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@[@"bob", @"alice", @"dave"],
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@[],
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@[],
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@[@0, @1, @2],
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],
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@[
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@[@"bob", @"alice", @"dave"],
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@[@"gary", @"alice", @"dave", @"jack"],
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@[@0, @3],
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@[@0],
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],
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@[
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@[@"bob", @"alice", @"dave", @"judy", @"lynda", @"tony"],
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@[@"gary", @"bob", @"suzy", @"tony"],
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@[@0, @2],
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@[@1, @2, @3, @4],
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],
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@[
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@[@"bob", @"alice", @"dave", @"judy"],
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@[@"judy", @"dave", @"alice", @"bob"],
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@[@1, @2, @3],
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@[@0, @1, @2],
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],
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];
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for (NSArray *test in tests) {
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NSIndexSet *insertions, *deletions;
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[test[0] asdk_diffWithArray:test[1] insertions:&insertions deletions:&deletions];
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for (NSNumber *index in (NSArray *)test[2]) {
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XCTAssert([insertions containsIndex:[index integerValue]]);
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}
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for (NSNumber *index in (NSArray *)test[3]) {
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XCTAssert([deletions containsIndex:[index integerValue]]);
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}
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}
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}
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@end
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