[test] Divide up existing Cycle tests and add FiniteCycle placeholder tests.

Author: LemonSpike

Tests/SwiftAlgorithmsTests/CycleTests.swift

@@ -19,28 +19,45 @@ final class CycleTests: XCTestCase {
       [1, 2, 3, 4, 1, 2, 3, 4, 1, 2, 3, 4, 1, 2, 3, 4, 1, 2, 3, 4],
       cycle.prefix(20)
     )
+  }
 
+  func testCycleClosedRangePrefix() {
     let a = Array((0..<17).cycled().prefix(10_000))
     XCTAssertEqual(10_000, a.count)
-    
+  }
+
+  func testEmptyCycle() {
     let empty = Array("".cycled())
     XCTAssert(empty.isEmpty)
   }
-  
+
+  func testCycleLazy() {
+    XCTAssertLazySequence((1...4).lazy.cycled())
+  }
+
   func testRepeated() {
     let repeats = (1...4).cycled(times: 3)
     XCTAssertEqualSequences(
       [1, 2, 3, 4, 1, 2, 3, 4, 1, 2, 3, 4],
       repeats)
-    
+  }
+
+  func testRepeatedClosedRange() {
+    let repeats = Array((1..<5).cycled(times: 2500))
+    XCTAssertEqual(10_000, repeats.count)
+  }
+
+  func testRepeatedEmptySequence() {
     let empty1 = Array("".cycled(times: 100))
     XCTAssert(empty1.isEmpty)
-    
+  }
+
+  func testRepeatedZeroTimesCycle() {
     let empty2 = Array("Hello".cycled(times: 0))
     XCTAssert(empty2.isEmpty)
   }
-  
-  func testCycleLazy() {
-    XCTAssertLazySequence((1...4).lazy.cycled())
+
+  func testRepeatedLazy() {
+    XCTAssertLazySequence((1...4).lazy.cycled(times: 3))
   }
 }