react-native/RNTester/RNTesterUnitTests/RCTImageUtilTests.m

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/**
* Copyright (c) 2015-present, Facebook, Inc.
*
* This source code is licensed under the MIT license found in the
* LICENSE file in the root directory of this source tree.
*
*/
#import <CoreGraphics/CoreGraphics.h>
#import <Foundation/Foundation.h>
#import <UIKit/UIView.h>
#import <XCTest/XCTest.h>
#import <RCTImage/RCTImageUtils.h>
#define RCTAssertEqualPoints(a, b) { \
XCTAssertEqual(a.x, b.x); \
XCTAssertEqual(a.y, b.y); \
}
#define RCTAssertEqualSizes(a, b) { \
XCTAssertEqual(a.width, b.width); \
XCTAssertEqual(a.height, b.height); \
}
#define RCTAssertEqualRects(a, b) { \
RCTAssertEqualPoints(a.origin, b.origin); \
RCTAssertEqualSizes(a.size, b.size); \
}
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@interface RCTImageUtilTests : XCTestCase
@end
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@implementation RCTImageUtilTests
- (void)testLandscapeSourceLandscapeTarget
{
CGSize content = {1000, 100};
CGSize target = {100, 20};
{
CGRect expected = {CGPointZero, {100, 20}};
CGRect result = RCTTargetRect(content, target, 1, RCTResizeModeStretch);
RCTAssertEqualRects(expected, result);
}
{
CGRect expected = {{0, 5}, {100, 10}};
CGRect result = RCTTargetRect(content, target, 1, RCTResizeModeContain);
RCTAssertEqualRects(expected, result);
}
{
CGRect expected = {{-50, 0}, {200, 20}};
CGRect result = RCTTargetRect(content, target, 1, RCTResizeModeCover);
RCTAssertEqualRects(expected, result);
}
}
- (void)testPortraitSourceLandscapeTarget
{
CGSize content = {10, 100};
CGSize target = {100, 20};
{
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CGRect expected = {CGPointZero, {100, 20}};
CGRect result = RCTTargetRect(content, target, 1, RCTResizeModeStretch);
RCTAssertEqualRects(expected, result);
}
{
CGRect expected = {{49, 0}, {2, 20}};
CGRect result = RCTTargetRect(content, target, 1, RCTResizeModeContain);
RCTAssertEqualRects(expected, result);
}
{
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CGRect expected = {{0, -490}, {100, 1000}};
CGRect result = RCTTargetRect(content, target, 1, RCTResizeModeCover);
RCTAssertEqualRects(expected, result);
}
}
- (void)testPortraitSourcePortraitTarget
{
CGSize content = {10, 100};
CGSize target = {20, 50};
{
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CGRect expected = {CGPointZero, {20, 50}};
CGRect result = RCTTargetRect(content, target, 1, RCTResizeModeStretch);
RCTAssertEqualRects(expected, result);
}
{
CGRect expected = {{7,0}, {5, 50}};
CGRect result = RCTTargetRect(content, target, 1, RCTResizeModeContain);
RCTAssertEqualRects(expected, result);
}
{
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CGRect expected = {{0, -75}, {20, 200}};
CGRect result = RCTTargetRect(content, target, 2, RCTResizeModeCover);
RCTAssertEqualRects(expected, result);
}
}
- (void)testRounding
{
CGSize content = {10, 100};
CGSize target = {20, 50};
{
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CGRect expected = {{0, -75}, {20, 200}};
CGRect result = RCTTargetRect(content, target, 1, RCTResizeModeCover);
RCTAssertEqualRects(expected, result);
}
}
- (void)testScaling
{
CGSize content = {2, 2};
CGSize target = {3, 3};
CGRect expected = {CGPointZero, {3, 3}};
CGRect result = RCTTargetRect(content, target, 1, RCTResizeModeStretch);
RCTAssertEqualRects(expected, result);
}
@end