Add to ArrayExtensionsTests.

FoundationExtras/Tests/FoundationExtrasTests/ArrayExtensionsTests.swift

@@ -28,4 +28,51 @@ final class ArrayExtensionsTests: XCTestCase {
 		let singleElement = resultArray[0]
 		XCTAssertEqual(singleElement, testArray)
 	}
+
+	func testChunkedInto_MoreThanOneChunk() {
+
+		let testArray = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13];
+		let resultArray = testArray.chunked(into: 4)
+		XCTAssert(resultArray.count == 4)
+
+		var i = 0
+		for elementArray in resultArray {
+			let start = (4 * i)
+
+			let expectedElementArray = {
+				if i == 3 {
+					return [13]
+				} else {
+					return [start + 1, start + 2, start + 3, start + 4]
+				}
+			}()
+
+			XCTAssertEqual(elementArray, expectedElementArray)
+			i = i + 1
+		}
+	}
+
+	// MARK: - Test maxY
+
+	func testMaxY_Empty() {
+
+		let y = [CGRect]().maxY()
+		XCTAssertEqual(y, 0.0)
+	}
+
+	func testMaxY() {
+
+		let expectedMaxYRect = CGRect(x: 33.0, y: 9845.0, width: 32, height: 100.57)
+		let testArray = [
+			CGRect(x: 0.0, y: 64.0, width: 32, height: 1024),
+			CGRect(x: 1000.0, y: 9845.0, width: 32, height: 32),
+			CGRect(x: -3.0, y: -633.0, width: 32, height: 6578),
+			expectedMaxYRect,
+			CGRect(x: 4, y: 9845.0, width: 32, height: -644),
+			CGRect(x: 1239, y: 9845.0, width: 32, height: 43)
+		]
+
+		let result = testArray.maxY()
+		XCTAssertEqual(result, expectedMaxYRect.maxY)
+	}
 }