/*

* Copyright (c) 2014-present, Facebook, Inc.

* All rights reserved.

*

* This source code is licensed under the BSD-style license found in the

* LICENSE file in the root directory of this source tree. An additional grant

* of patent rights can be found in the PATENTS file in the same directory.

*

*/

#import <XCTest/XCTest.h>

#import "ASDimension.h"

@interface ASDimensionTests : XCTestCase

@end

@implementation ASDimensionTests

- (void)testIntersectingOverlappingSizeRangesReturnsTheirIntersection

{

// range: |---------|

// other: |----------|

// result: |----|

ASSizeRange range = {{0,0}, {10,10}};

ASSizeRange other = {{7,7}, {15,15}};

ASSizeRange result = ASSizeRangeIntersect(range, other);

ASSizeRange expected = {{7,7}, {10,10}};

XCTAssertTrue(ASSizeRangeEqualToSizeRange(result, expected), @"Expected %@ but got %@", NSStringFromASSizeRange(expected), NSStringFromASSizeRange(result));

}

- (void)testIntersectingSizeRangeWithRangeThatContainsItReturnsSameRange

{

// range: |-----|

// other: |---------|

// result: |-----|

ASSizeRange range = {{2,2}, {8,8}};

ASSizeRange other = {{0,0}, {10,10}};

ASSizeRange result = ASSizeRangeIntersect(range, other);

ASSizeRange expected = {{2,2}, {8,8}};

XCTAssertTrue(ASSizeRangeEqualToSizeRange(result, expected), @"Expected %@ but got %@", NSStringFromASSizeRange(expected), NSStringFromASSizeRange(result));

}

- (void)testIntersectingSizeRangeWithRangeContainedWithinItReturnsContainedRange

{

// range: |---------|

// other: |-----|

// result: |-----|

ASSizeRange range = {{0,0}, {10,10}};

ASSizeRange other = {{2,2}, {8,8}};

ASSizeRange result = ASSizeRangeIntersect(range, other);

ASSizeRange expected = {{2,2}, {8,8}};

XCTAssertTrue(ASSizeRangeEqualToSizeRange(result, expected), @"Expected %@ but got %@", NSStringFromASSizeRange(expected), NSStringFromASSizeRange(result));

}

- (void)testIntersectingSizeRangeWithNonOverlappingRangeToRightReturnsSinglePointNearestOtherRange

{

// range: |-----|

// other: |---|

// result: *

ASSizeRange range = {{0,0}, {5,5}};

ASSizeRange other = {{10,10}, {15,15}};

ASSizeRange result = ASSizeRangeIntersect(range, other);

ASSizeRange expected = {{5,5}, {5,5}};

XCTAssertTrue(ASSizeRangeEqualToSizeRange(result, expected), @"Expected %@ but got %@", NSStringFromASSizeRange(expected), NSStringFromASSizeRange(result));

}

- (void)testIntersectingSizeRangeWithNonOverlappingRangeToLeftReturnsSinglePointNearestOtherRange

{

// range: |---|

// other: |-----|

// result: *

ASSizeRange range = {{10,10}, {15,15}};

ASSizeRange other = {{0,0}, {5,5}};

ASSizeRange result = ASSizeRangeIntersect(range, other);

ASSizeRange expected = {{10,10}, {10,10}};

XCTAssertTrue(ASSizeRangeEqualToSizeRange(result, expected), @"Expected %@ but got %@", NSStringFromASSizeRange(expected), NSStringFromASSizeRange(result));

}

@end