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Add UnitCurveCompatibilityTests
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‎Tests/OpenSwiftUICompatibilityTests/Animation/Animation/AnimationTests.swift‎ renamed to ‎Tests/OpenSwiftUICompatibilityTests/Animation/Animation/AnimationCompatibilityTests.swift‎

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import Testing
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struct AnimationTests {
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struct AnimationCompatibilityTests {
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@Test
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func description() {
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let animation = Animation.default

‎Tests/OpenSwiftUICompatibilityTests/Animation/Animation/UnitCurveCompatibilityTests.swift‎

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//
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// UnitCurveCompatibilityTests.swift
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// OpenSwiftUICompatibilityTests
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import Testing
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// MARK: - UnitCurveTests
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struct UnitCurveCompatibilityTests {
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@Test
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func linearCurve() {
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let curve = UnitCurve.linear
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#expect(curve.value(at: 0.0).isApproximatelyEqual(to: 0.0))
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#expect(curve.value(at: 0.25).isApproximatelyEqual(to: 0.25))
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#expect(curve.value(at: 0.5).isApproximatelyEqual(to: 0.5))
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#expect(curve.value(at: 0.75).isApproximatelyEqual(to: 0.75))
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#expect(curve.value(at: 1.0).isApproximatelyEqual(to: 1.0))
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#expect(curve.velocity(at: 0.0).isApproximatelyEqual(to: 1.0))
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#expect(curve.velocity(at: 0.25).isApproximatelyEqual(to: 1.0))
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#expect(curve.velocity(at: 0.5).isApproximatelyEqual(to: 1.0))
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#expect(curve.velocity(at: 0.75).isApproximatelyEqual(to: 1.0))
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#expect(curve.velocity(at: 1.0).isApproximatelyEqual(to: 1.0))
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}
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@Test
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func easeInCurve() {
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let curve = UnitCurve.easeIn
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#expect(curve.value(at: 0.0).isApproximatelyEqual(to: 0.0))
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#expect(curve.value(at: 0.25).isApproximatelyEqual(to: 0.09, absoluteTolerance: 0.01))
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#expect(curve.value(at: 0.5).isApproximatelyEqual(to: 0.32, absoluteTolerance: 0.01))
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#expect(curve.value(at: 0.75).isApproximatelyEqual(to: 0.62, absoluteTolerance: 0.01))
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#expect(curve.value(at: 1.0).isApproximatelyEqual(to: 1.0))
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#expect(curve.velocity(at: 0.0).isApproximatelyEqual(to: 0.0))
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#expect(curve.velocity(at: 0.25).isApproximatelyEqual(to: 0.67, absoluteTolerance: 0.01))
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#expect(curve.velocity(at: 0.5).isApproximatelyEqual(to: 1.07, absoluteTolerance: 0.01))
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#expect(curve.velocity(at: 0.75).isApproximatelyEqual(to: 1.37, absoluteTolerance: 0.01))
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#expect(curve.velocity(at: 1.0).isApproximatelyEqual(to: 0.0))
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}
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@Test
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func easeOutCurve() {
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let curve = UnitCurve.easeOut
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#expect(curve.value(at: 0.0).isApproximatelyEqual(to: 0.0))
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#expect(curve.value(at: 0.25).isApproximatelyEqual(to: 0.38, absoluteTolerance: 0.01))
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#expect(curve.value(at: 0.5).isApproximatelyEqual(to: 0.68, absoluteTolerance: 0.01))
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#expect(curve.value(at: 0.75).isApproximatelyEqual(to: 0.91, absoluteTolerance: 0.01))
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#expect(curve.value(at: 1.0).isApproximatelyEqual(to: 1.0))
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#expect(curve.velocity(at: 0.0).isApproximatelyEqual(to: 1.0, absoluteTolerance: 0.01))
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#expect(curve.velocity(at: 0.25).isApproximatelyEqual(to: 1.37, absoluteTolerance: 0.01))
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#expect(curve.velocity(at: 0.5).isApproximatelyEqual(to: 1.07, absoluteTolerance: 0.01))
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#expect(curve.velocity(at: 0.75).isApproximatelyEqual(to: 0.67, absoluteTolerance: 0.01))
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#expect(curve.velocity(at: 1.0).isApproximatelyEqual(to: 0.0))
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}
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@Test
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func easeInOutCurve() {
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let curve = UnitCurve.easeInOut
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#expect(curve.value(at: 0.0).isApproximatelyEqual(to: 0.0))
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#expect(curve.value(at: 0.25).isApproximatelyEqual(to: 0.13, absoluteTolerance: 0.01))
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#expect(curve.value(at: 0.5).isApproximatelyEqual(to: 0.5))
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#expect(curve.value(at: 0.75).isApproximatelyEqual(to: 0.87, absoluteTolerance: 0.01))
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#expect(curve.value(at: 1.0).isApproximatelyEqual(to: 1.0))
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#expect(curve.velocity(at: 0.0).isApproximatelyEqual(to: 0.0))
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#expect(curve.velocity(at: 0.25).isApproximatelyEqual(to: 1.06, absoluteTolerance: 0.01))
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#expect(curve.velocity(at: 0.5).isApproximatelyEqual(to: 1.72, absoluteTolerance: 0.01))
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#expect(curve.velocity(at: 0.75).isApproximatelyEqual(to: 1.06, absoluteTolerance: 0.01))
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#expect(curve.velocity(at: 1.0).isApproximatelyEqual(to: 0.0))
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}
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@Test
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func circularEaseInCurve() {
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let curve = UnitCurve.circularEaseIn
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#expect(curve.value(at: 0.0).isApproximatelyEqual(to: 0.0))
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#expect(curve.value(at: 0.25).isApproximatelyEqual(to: 0.032, absoluteTolerance: 0.001))
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#expect(curve.value(at: 0.5).isApproximatelyEqual(to: 0.134, absoluteTolerance: 0.001))
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#expect(curve.value(at: 0.75).isApproximatelyEqual(to: 0.339, absoluteTolerance: 0.001))
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#expect(curve.value(at: 1.0).isApproximatelyEqual(to: 1.0))
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#expect(curve.velocity(at: 0.0).isApproximatelyEqual(to: 0.0))
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#expect(curve.velocity(at: 0.25).isApproximatelyEqual(to: 0.258, absoluteTolerance: 0.001))
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#expect(curve.velocity(at: 0.5).isApproximatelyEqual(to: 0.577, absoluteTolerance: 0.001))
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#expect(curve.velocity(at: 0.75).isApproximatelyEqual(to: 1.134, absoluteTolerance: 0.001))
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#expect(curve.velocity(at: 1.0).isApproximatelyEqual(to: .infinity))
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}
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@Test
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func circularEaseOutCurve() {
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let curve = UnitCurve.circularEaseOut
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#expect(curve.value(at: 0.0).isApproximatelyEqual(to: 0.0))
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#expect(curve.value(at: 0.25).isApproximatelyEqual(to: 0.661, absoluteTolerance: 0.001))
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#expect(curve.value(at: 0.5).isApproximatelyEqual(to: 0.866, absoluteTolerance: 0.001))
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#expect(curve.value(at: 0.75).isApproximatelyEqual(to: 0.968, absoluteTolerance: 0.001))
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#expect(curve.value(at: 1.0).isApproximatelyEqual(to: 1.0))
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#expect(curve.velocity(at: 0.0).isApproximatelyEqual(to: .infinity))
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#expect(curve.velocity(at: 0.25).isApproximatelyEqual(to: 1.134, absoluteTolerance: 0.001))
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#expect(curve.velocity(at: 0.5).isApproximatelyEqual(to: 0.577, absoluteTolerance: 0.001))
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#expect(curve.velocity(at: 0.75).isApproximatelyEqual(to: 0.258, absoluteTolerance: 0.001))
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#expect(curve.velocity(at: 1.0).isApproximatelyEqual(to: 0.0))
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}
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@Test
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func circularEaseInOutCurve() {
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let curve = UnitCurve.circularEaseInOut
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#expect(curve.value(at: 0.0).isApproximatelyEqual(to: 0.0))
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#expect(curve.value(at: 0.25).isApproximatelyEqual(to: 0.067, absoluteTolerance: 0.001))
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#expect(curve.value(at: 0.5).isApproximatelyEqual(to: 0.5))
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#expect(curve.value(at: 0.75).isApproximatelyEqual(to: 0.933, absoluteTolerance: 0.001))
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#expect(curve.value(at: 1.0).isApproximatelyEqual(to: 1.0))
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#expect(curve.velocity(at: 0.0).isApproximatelyEqual(to: 0.0))
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#expect(curve.velocity(at: 0.25).isApproximatelyEqual(to: 0.577, absoluteTolerance: 0.001))
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#expect(curve.velocity(at: 0.5).isApproximatelyEqual(to: .infinity, absoluteTolerance: 0.001))
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#expect(curve.velocity(at: 0.75).isApproximatelyEqual(to: 0.577, absoluteTolerance: 0.001))
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#expect(curve.velocity(at: 1.0).isApproximatelyEqual(to: 0.0))
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}
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// MARK: - Bezier Curve Creation
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@Test
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func bezierCurveCreation() {
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let startPoint = UnitPoint(x: 0.25, y: 0.1)
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let endPoint = UnitPoint(x: 0.75, y: 0.9)
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let curve = UnitCurve.bezier(startControlPoint: startPoint, endControlPoint: endPoint)
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#expect(curve.value(at: 0.0).isApproximatelyEqual(to: 0.0))
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#expect(curve.value(at: 1.0).isApproximatelyEqual(to: 1.0))
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#expect(curve.value(at: 0.5).isApproximatelyEqual(to: 0.5, absoluteTolerance: 0.01))
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#expect(curve.velocity(at: 0.5).isApproximatelyEqual(to: 1.20, absoluteTolerance: 0.01))
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}
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@Test
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func bezierCurveWithExtremeControlPoints() {
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let startPoint = UnitPoint(x: -0.5, y: 2.0)
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let endPoint = UnitPoint(x: 1.5, y: -1.0)
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let curve = UnitCurve.bezier(startControlPoint: startPoint, endControlPoint: endPoint)
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#expect(curve.value(at: 0.0).isApproximatelyEqual(to: 0.0))
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#expect(curve.value(at: 1.0).isApproximatelyEqual(to: 1.0))
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#expect(curve.value(at: 0.5).isApproximatelyEqual(to: 0.5))
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#expect(curve.velocity(at: 0.5).isApproximatelyEqual(to: -1.0))
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}
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// MARK: - Value Function
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@Test
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func valueAtBoundaryConditions() {
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let curve = UnitCurve.easeInOut
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#expect(curve.value(at: -0.5).isApproximatelyEqual(to: 0.0))
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#expect(curve.value(at: 0.0).isApproximatelyEqual(to: 0.0))
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#expect(curve.value(at: 1.0).isApproximatelyEqual(to: 1.0))
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#expect(curve.value(at: 1.5).isApproximatelyEqual(to: 1.0))
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}
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@Test
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func valueAtVariousProgressPoints() {
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let curve = UnitCurve.linear
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for progress in stride(from: 0.0, through: 1.0, by: 0.1) {
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let value = curve.value(at: progress)
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#expect(value >= 0.0)
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#expect(value <= 1.0)
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}
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}
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// MARK: - Velocity Function
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@Test
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func velocityAtBoundaryConditions() {
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let curve = UnitCurve.linear
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#expect(curve.velocity(at: -0.5).isApproximatelyEqual(to: 1.0))
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#expect(curve.velocity(at: 0.0).isApproximatelyEqual(to: 1.0))
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#expect(curve.velocity(at: 1.0).isApproximatelyEqual(to: 1.0))
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#expect(curve.velocity(at: 1.5).isApproximatelyEqual(to: 1.0))
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}
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@Test
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func velocityForCircularCurves() {
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let easeIn = UnitCurve.circularEaseIn
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let easeOut = UnitCurve.circularEaseOut
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let easeInOut = UnitCurve.circularEaseInOut
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#expect(easeIn.velocity(at: 0.5) > 0.0)
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#expect(easeOut.velocity(at: 0.5) > 0.0)
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#expect(easeInOut.velocity(at: 0.5) > 0.0)
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}
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// MARK: - Inverse Property
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@Test
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func linearCurveInverse() {
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let curve = UnitCurve.linear
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let inverse = curve.inverse
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#expect(inverse.value(at: 0.0).isApproximatelyEqual(to: 0.0))
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#expect(inverse.value(at: 0.5).isApproximatelyEqual(to: 0.5))
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#expect(inverse.value(at: 1.0).isApproximatelyEqual(to: 1.0))
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}
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@Test
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func circularCurveInverse() {
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let easeIn = UnitCurve.circularEaseIn
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let easeOut = UnitCurve.circularEaseOut
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#expect(easeIn.inverse.value(at: 0.3).isApproximatelyEqual(to: easeOut.value(at: 0.3)))
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#expect(easeIn.inverse.value(at: 0.7).isApproximatelyEqual(to: easeOut.value(at: 0.7)))
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#expect(easeIn.inverse.velocity(at: 0.3).isApproximatelyEqual(to: easeOut.velocity(at: 0.3)))
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#expect(easeIn.inverse.velocity(at: 0.7).isApproximatelyEqual(to: easeOut.velocity(at: 0.7)))
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}
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@Test
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func curveInverse() {
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let easeIn = UnitCurve.easeIn
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let easeOut = UnitCurve.easeOut
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#expect(!easeIn.inverse.value(at: 0.3).isApproximatelyEqual(to: easeOut.value(at: 0.3)))
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#expect(!easeIn.inverse.value(at: 0.7).isApproximatelyEqual(to: easeOut.value(at: 0.7)))
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#expect(!easeIn.inverse.velocity(at: 0.3).isApproximatelyEqual(to: easeOut.velocity(at: 0.3)))
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#expect(!easeIn.inverse.velocity(at: 0.7).isApproximatelyEqual(to: easeOut.velocity(at: 0.7)))
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}
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@Test
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func bezierCurveInverse() {
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let startPoint = UnitPoint(x: 0.25, y: 0.1)
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let endPoint = UnitPoint(x: 0.75, y: 0.9)
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let curve = UnitCurve.bezier(startControlPoint: startPoint, endControlPoint: endPoint)
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let inverseStartPoint = UnitPoint(x: 0.1, y: 0.25)
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let inverseEndPoint = UnitPoint(x: 0.9, y: 0.75)
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let inverse = UnitCurve.bezier(startControlPoint: inverseStartPoint, endControlPoint: inverseEndPoint)
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#expect(inverse.value(at: 0.3).isAlmostEqual(to: curve.inverse.value(at: 0.3)))
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#expect(inverse.value(at: 0.7).isAlmostEqual(to: curve.inverse.value(at: 0.7)))
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}
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}

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