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61 lines
1.9 KiB
Swift
61 lines
1.9 KiB
Swift
import LayoutKit
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import VGSL
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import XCTest
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final class ResizableBlockMeasureTests: XCTestCase {
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func test_FillsAvailableSpace() {
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var blockMeasure = ResizableBlockMeasure(
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resizableBlockCount: 11,
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lengthAvailablePerWeightUnit: 20.0 / 11,
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lengthAvailableForResizableBlocks: 20
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)
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var totalLength: CGFloat = 0
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for _ in 0..<11 {
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let blockLength = blockMeasure.measureNext(.resizable(LayoutTrait.Weight(rawValue: 1)!))
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XCTAssertTrue(blockLength.isApproximatelyEqualTo(blockLength.flooredToScreenScale))
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totalLength += blockLength
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}
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XCTAssertTrue(totalLength.isApproximatelyEqualTo(20))
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}
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func test_DistributedEvenly() {
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var blockMeasure = ResizableBlockMeasure(
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resizableBlockCount: 3,
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lengthAvailablePerWeightUnit: 10,
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lengthAvailableForResizableBlocks: 1000
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)
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XCTAssertTrue(
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blockMeasure.measureNext(.resizable(LayoutTrait.Weight(rawValue: 10)!))
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.isApproximatelyEqualTo(100)
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)
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XCTAssertTrue(blockMeasure.measureNext(.nonResizable).isApproximatelyEqualTo(0))
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XCTAssertTrue(blockMeasure.measureNext(.nonResizable).isApproximatelyEqualTo(0))
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XCTAssertTrue(
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blockMeasure.measureNext(.resizable(LayoutTrait.Weight(rawValue: 65)!))
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.isApproximatelyEqualTo(650)
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)
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XCTAssertTrue(blockMeasure.measureNext(.nonResizable).isApproximatelyEqualTo(0))
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XCTAssertTrue(
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blockMeasure.measureNext(.resizable(LayoutTrait.Weight(rawValue: 25)!))
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.isApproximatelyEqualTo(250)
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)
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}
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func test_ResizableWithMargins() {
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let margin = 50.0
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var blockMeasure = ResizableBlockMeasure(
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resizableBlockCount: 3,
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lengthAvailablePerWeightUnit: 10,
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lengthAvailableForResizableBlocks: 1000
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)
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XCTAssertTrue(
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blockMeasure.measureNext(.resizable(LayoutTrait.Weight(rawValue: 10)!, reservedSpace: margin))
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.isApproximatelyEqualTo(100 + margin)
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)
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}
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}
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