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verify key path values of layer transform

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This commit is contained in:
Paul Zabelin
2018-02-19 16:21:34 -08:00
parent f2301670ca
commit 18226612e4
2 changed files with 23 additions and 1 deletions
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19
Example/Tests/ProjectionSpec.swift
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@@ -37,7 +37,13 @@ class ProjectionSpec: QuickSpec {
it("should be identity") {
let projection = from.projection(to: to)
expect(CATransform3DIsIdentity(CATransform3D(projection.to3d()))) == true
let transform3D = CATransform3D(projection.to3d())
expect(CATransform3DIsIdentity(transform3D)) == true
let layer = CALayer()
layer.transform = transform3D
expect(layer.value(forKeyPath: "transform.scale") as? Double) == 1
expect(layer.value(forKeyPath: "transform.translation") as? CGSize) == CGSize.zero
expect(layer.value(forKeyPath: "transform.rotation") as? Double) == 0
}
}
@@ -81,6 +87,17 @@ class ProjectionSpec: QuickSpec {
expect(matrix.m13) == 0
expect(matrix.m31) == 0
}
it("should have key path components of rotation and translation") {
let layer = CALayer()
layer.transform = matrix
expect(layer.value(forKeyPath: "transform.scale") as? Double) == 1
expect(layer.value(forKeyPath: "transform.translation") as? CGSize) == CGSize(width: 10, height: 0)
expect(layer.value(forKeyPath: "transform.rotation") as? Double) ≈ Double.pi / 2
expect(layer.value(forKeyPath: "transform.rotation.z") as? Double) ≈ Double.pi / 2
expect(layer.value(forKeyPath: "transform.rotation.x") as? Double) == 0
expect(layer.value(forKeyPath: "transform.rotation.y") as? Double) == 0
}
}
}