Add 'submodules/AsyncDisplayKit/' from commit '02bedc12816e251ad71777f9d2578329b6d2bef6'

git-subtree-dir: submodules/AsyncDisplayKit
git-subtree-mainline: d06f423e0e
git-subtree-split: 02bedc1281

submodules/AsyncDisplayKit/Tests/ASMutableAttributedStringBuilderTests.mm

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+//
+//  ASMutableAttributedStringBuilderTests.mm
+//  Texture
+//
+//  Copyright (c) Facebook, Inc. and its affiliates.  All rights reserved.
+//  Changes after 4/13/2017 are: Copyright (c) Pinterest, Inc.  All rights reserved.
+//  Licensed under Apache 2.0: http://www.apache.org/licenses/LICENSE-2.0
+//
+
+#import <XCTest/XCTest.h>
+
+#import <AsyncDisplayKit/ASMutableAttributedStringBuilder.h>
+
+@interface ASMutableAttributedStringBuilderTests : XCTestCase
+
+@end
+
+@implementation ASMutableAttributedStringBuilderTests
+
+- (NSString *)_string
+{
+  return @"Normcore PBR hella, viral slow-carb mustache chillwave church-key cornhole messenger bag swag vinyl biodiesel ethnic. Fashion axe messenger bag raw denim street art. Flannel Wes Anderson normcore church-key 8-bit. Master cleanse four loko try-hard Carles stumptown ennui, twee literally wayfarers kitsch tofu PBR. Cliche organic post-ironic Wes Anderson kale chips fashion axe. Narwhal Blue Bottle sustainable, Odd Future Godard sriracha banjo disrupt Marfa irony pug Wes Anderson YOLO yr church-key. Mlkshk Intelligentsia semiotics quinoa, butcher meggings wolf Bushwick keffiyeh ethnic pour-over Pinterest letterpress.";
+}
+
+- (ASMutableAttributedStringBuilder *)_builder
+{
+  return [[ASMutableAttributedStringBuilder alloc] initWithString:[self _string]];
+}
+
+- (NSRange)_randomizedRangeForStringBuilder:(ASMutableAttributedStringBuilder *)builder
+{
+  NSUInteger loc = arc4random() % (builder.length - 1);
+  NSUInteger len = arc4random() % (builder.length - loc);
+  len = ((len > 0) ? len : 1);
+  return NSMakeRange(loc, len);
+}
+
+- (void)testSimpleAttributions
+{
+  // Add a attributes, and verify that they get set on the correct locations.
+  for (int i = 0; i < 100; i++) {
+    ASMutableAttributedStringBuilder *builder = [self _builder];
+    NSRange range = [self _randomizedRangeForStringBuilder:builder];
+    NSString *keyValue = [NSString stringWithFormat:@"%d", i];
+    [builder addAttribute:keyValue value:keyValue range:range];
+    NSAttributedString *attrStr = [builder composedAttributedString];
+    XCTAssertEqual(builder.length, attrStr.length, @"out string should have same length as builder");
+    __block BOOL found = NO;
+    [attrStr enumerateAttributesInRange:NSMakeRange(0, attrStr.length) options:0 usingBlock:^(NSDictionary *attrs, NSRange r, BOOL *stop) {
+      if ([attrs[keyValue] isEqualToString:keyValue]) {
+        XCTAssertTrue(NSEqualRanges(range, r), @"enumerated range %@ should be equal to the set range %@", NSStringFromRange(r), NSStringFromRange(range));
+        found = YES;
+      }
+    }];
+    XCTAssertTrue(found, @"enumeration should have found the attribute we set");
+  }
+}
+
+- (void)testSetOverAdd
+{
+  ASMutableAttributedStringBuilder *builder = [self _builder];
+  NSRange addRange = NSMakeRange(0, builder.length);
+  NSRange setRange = NSMakeRange(0, 1);
+  [builder addAttribute:@"attr" value:@"val1" range:addRange];
+  [builder setAttributes:@{@"attr" : @"val2"} range:setRange];
+  NSAttributedString *attrStr = [builder composedAttributedString];
+  NSRange setRangeOut;
+  NSString *setAttr = [attrStr attribute:@"attr" atIndex:0 effectiveRange:&setRangeOut];
+  XCTAssertTrue(NSEqualRanges(setRange, setRangeOut), @"The out set range should equal the range we used originally");
+  XCTAssertEqualObjects(setAttr, @"val2", @"the set value should be val2");
+
+  NSRange addRangeOut;
+  NSString *addAttr = [attrStr attribute:@"attr" atIndex:2 effectiveRange:&addRangeOut];
+  XCTAssertTrue(NSEqualRanges(NSMakeRange(1, builder.length - 1), addRangeOut), @"the add range should only cover beyond the set range");
+  XCTAssertEqualObjects(addAttr, @"val1", @"the added attribute should be present at index 2");
+}
+
+@end