Swiftgram/Tests/ASTextKitCoreTextAdditionsTests.m
appleguy 465abb1ded [License] Simplify the Texture license to be pure Apache 2 (removing ASDK-Licenses). (#1077)
* [License] Simplify the Texture license to be pure Apache 2 (removing ASDK-Licenses)

With permission of the Facebook Open Source team, we are simplifying the Texture
license so that clients can rely on the Apache 2 terms that most of Texture is
already covered by. This means that code originally forked from AsyncDisplayKit
will be re-licensed from "BSD 3-clause + PATENTS v2" to Apache 2 without a
PATENTS file.

After getting confirmation that the updates to these core files look good, we'll
propagate this new license header to all files (in this same PR) and get sign-off
from all parties before landing.

* [License] Update all Texture source files to be pure Apache 2.

* Changelog entry for Apache 2 license update.

* Revert "[License] Update all Texture source files to be pure Apache 2."

This reverts commit ffa0fbbba9717d871dd16c4b07539f2f8208fc2b.

* [License] Update all Texture source files to be pure Apache 2, maintaining copyrights.

* [License] Update CONTRIBUTING, README, Podspec & Dangerfile.
2018-08-28 07:39:18 -07:00

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3.3 KiB
Objective-C

//
// ASTextKitCoreTextAdditionsTests.m
// 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 <CoreText/CoreText.h>
#import <XCTest/XCTest.h>
#import <AsyncDisplayKit/ASTextKitCoreTextAdditions.h>
BOOL floatsCloseEnough(CGFloat float1, CGFloat float2) {
CGFloat epsilon = 0.00001;
return (fabs(float1 - float2) < epsilon);
}
@interface ASTextKitCoreTextAdditionsTests : XCTestCase
@end
@implementation ASTextKitCoreTextAdditionsTests
- (void)testAttributeCleansing
{
UIFont *font = [UIFont systemFontOfSize:12.0];
NSMutableAttributedString *testString = [[NSMutableAttributedString alloc] initWithString:@"Test" attributes:@{NSFontAttributeName:font}];
CFRange cfRange = CFRangeMake(0, testString.length);
CGColorRef blueColor = CGColorRetain([UIColor blueColor].CGColor);
CFAttributedStringSetAttribute((CFMutableAttributedStringRef)testString,
cfRange,
kCTForegroundColorAttributeName,
blueColor);
UIColor *color = [UIColor colorWithCGColor:blueColor];
NSAttributedString *actualCleansedString = ASCleanseAttributedStringOfCoreTextAttributes(testString);
XCTAssertTrue([[actualCleansedString attribute:NSForegroundColorAttributeName atIndex:0 effectiveRange:NULL] isEqual:color], @"Expected the %@ core text attribute to be cleansed from the string %@\n Should match %@", kCTForegroundColorFromContextAttributeName, actualCleansedString, color);
CGColorRelease(blueColor);
}
- (void)testNoAttributeCleansing
{
NSMutableAttributedString *testString = [[NSMutableAttributedString alloc] initWithString:@"Test" attributes:@{NSFontAttributeName:[UIFont systemFontOfSize:12.0],
NSForegroundColorAttributeName : [UIColor blueColor]}];
NSAttributedString *actualCleansedString = ASCleanseAttributedStringOfCoreTextAttributes(testString);
XCTAssertTrue([testString isEqualToAttributedString:actualCleansedString], @"Expected the output string %@ to be the same as the input %@ if there are no core text attributes", actualCleansedString, testString);
}
- (void)testNSParagraphStyleNoCleansing
{
NSMutableParagraphStyle *paragraphStyle = [[NSMutableParagraphStyle alloc] init];
paragraphStyle.lineSpacing = 10.0;
//NSUnderlineStyleAttributeName flags the unsupported CT attribute check
NSDictionary *attributes = @{NSParagraphStyleAttributeName:paragraphStyle,
NSUnderlineStyleAttributeName:@(NSUnderlineStyleSingle)};
NSAttributedString *attributedString = [[NSAttributedString alloc] initWithString:@"Test" attributes:attributes];
NSAttributedString *cleansedString = ASCleanseAttributedStringOfCoreTextAttributes(attributedString);
NSParagraphStyle *cleansedParagraphStyle = [cleansedString attribute:NSParagraphStyleAttributeName atIndex:0 effectiveRange:NULL];
XCTAssertTrue(floatsCloseEnough(cleansedParagraphStyle.lineSpacing, paragraphStyle.lineSpacing), @"Expected the output line spacing: %f to be equal to the input line spacing: %f", cleansedParagraphStyle.lineSpacing, paragraphStyle.lineSpacing);
}
@end