finalize migration tests (kodecocodes#381)

* finalize migration tests

* fix

* fixes

* test fixes

* fix bounded priority queue

.travis.yml

@@ -15,30 +15,29 @@ script:
 - xcodebuild test -project ./Boyer-Moore/Tests/Tests.xcodeproj -scheme Tests
 - xcodebuild test -project ./Binary\ Search\ Tree/Solution\ 1/Tests/Tests.xcodeproj -scheme Tests
 - xcodebuild test -project ./Bloom\ Filter/Tests/Tests.xcodeproj -scheme Tests
-# - xcodebuild test -project ./Bounded\ Priority\ Queue/Tests/Tests.xcodeproj -scheme Tests
-# - xcodebuild test -project ./Breadth-First\ Search/Tests/Tests.xcodeproj -scheme Tests
+- xcodebuild test -project ./Bounded\ Priority\ Queue/Tests/Tests.xcodeproj -scheme Tests
+- xcodebuild test -project ./Breadth-First\ Search/Tests/Tests.xcodeproj -scheme Tests
 - xcodebuild test -project ./Bucket\ Sort/Tests/Tests.xcodeproj -scheme Tests
 - xcodebuild test -project ./B-Tree/Tests/Tests.xcodeproj -scheme Tests
 - xcodebuild test -project ./Comb\ Sort/Tests/Tests.xcodeproj -scheme Tests
-# - xcodebuild test -project ./Counting\ Sort/Tests/Tests.xcodeproj -scheme Tests
-# - xcodebuild test -project ./Depth-First\ Search/Tests/Tests.xcodeproj -scheme Tests
-# - xcodebuild test -project ./Graph/Graph.xcodeproj -scheme GraphTests
-# - xcodebuild test -project ./Heap/Tests/Tests.xcodeproj -scheme Tests
+- xcodebuild test -project ./Counting\ Sort/Tests/Tests.xcodeproj -scheme Tests
+- xcodebuild test -project ./Depth-First\ Search/Tests/Tests.xcodeproj -scheme Tests
+- xcodebuild test -project ./Graph/Graph.xcodeproj -scheme GraphTests
+- xcodebuild test -project ./Heap/Tests/Tests.xcodeproj -scheme Tests
 - xcodebuild test -project ./Heap\ Sort/Tests/Tests.xcodeproj -scheme Tests
 - xcodebuild test -project ./Insertion\ Sort/Tests/Tests.xcodeproj -scheme Tests
 - xcodebuild test -project ./K-Means/Tests/Tests.xcodeproj -scheme Tests
-# - xcodebuild test -project ./Linked\ List/Tests/Tests.xcodeproj -scheme Tests
+- xcodebuild test -project ./Linked\ List/Tests/Tests.xcodeproj -scheme Tests
 - xcodebuild test -project ./Longest\ Common\ Subsequence/Tests/Tests.xcodeproj -scheme Tests
 - xcodebuild test -project ./Minimum\ Spanning\ Tree\ \(Unweighted\)/Tests/Tests.xcodeproj -scheme Tests
-# - xcodebuild test -project ./Priority\ Queue/Tests/Tests.xcodeproj -scheme Tests
+- xcodebuild test -project ./Priority\ Queue/Tests/Tests.xcodeproj -scheme Tests
 - xcodebuild test -project ./Queue/Tests/Tests.xcodeproj -scheme Tests
-# - xcodebuild test -project ./Quicksort/Tests/Tests.xcodeproj -scheme Tests
+- xcodebuild test -project ./Quicksort/Tests/Tests.xcodeproj -scheme Tests
 - xcodebuild test -project ./Radix\ Sort/Tests/Tests.xcodeproj -scheme Tests
 - xcodebuild test -project ./Rootish\ Array\ Stack/Tests/Tests.xcodeproj -scheme Tests
-# - xcodebuild test -project ./Run-Length\ Encoding/Tests/Tests.xcodeproj -scheme Tests
-# - xcodebuild test -project ./Select\ Minimum\ Maximum/Tests/Tests.xcodeproj -scheme Tests
+- xcodebuild test -project ./Select\ Minimum\ Maximum/Tests/Tests.xcodeproj -scheme Tests
 - xcodebuild test -project ./Selection\ Sort/Tests/Tests.xcodeproj -scheme Tests
-# - xcodebuild test -project ./Shell\ Sort/Tests/Tests.xcodeproj -scheme Tests
+- xcodebuild test -project ./Shell\ Sort/Tests/Tests.xcodeproj -scheme Tests
 - xcodebuild test -project ./Shortest\ Path\ \(Unweighted\)/Tests/Tests.xcodeproj -scheme Tests
 - xcodebuild test -project ./Single-Source\ Shortest\ Paths\ \(Weighted\)/SSSP.xcodeproj -scheme SSSPTests
 - xcodebuild test -project ./Stack/Tests/Tests.xcodeproj -scheme Tests

Bounded Priority Queue/BoundedPriorityQueue.playground/Sources/BoundedPriorityQueue.swift

@@ -9,7 +9,7 @@ public class LinkedListNode<T: Comparable> {
 }
 
 public class BoundedPriorityQueue<T: Comparable> {
-  private typealias Node = LinkedListNode<T>
+  fileprivate typealias Node = LinkedListNode<T>
 
   private(set) public var count = 0
   fileprivate var head: Node?

Bounded Priority Queue/BoundedPriorityQueue.swift

@@ -1,4 +1,4 @@
-public class LinkedListNode<T: Comparable> {
+open class LinkedListNode<T: Comparable> {
   var value: T
   var next: LinkedListNode?
   var previous: LinkedListNode?
@@ -8,27 +8,27 @@ public class LinkedListNode<T: Comparable> {
   }
 }
 
-public class BoundedPriorityQueue<T: Comparable> {
-  private typealias Node = LinkedListNode<T>
+open class BoundedPriorityQueue<T: Comparable> {
+  fileprivate typealias Node = LinkedListNode<T>
 
-  private(set) public var count = 0
-  private var head: Node?
-  private var tail: Node?
-  private var maxElements: Int
+  fileprivate(set) open var count = 0
+  fileprivate var head: Node?
+  fileprivate var tail: Node?
+  fileprivate var maxElements: Int
 
   public init(maxElements: Int) {
     self.maxElements = maxElements
   }
 
-  public var isEmpty: Bool {
+  open var isEmpty: Bool {
     return count == 0
   }
 
-  public func peek() -> T? {
+  open func peek() -> T? {
     return head?.value
   }
 
-  public func enqueue(value: T) {
+  open func enqueue(_ value: T) {
     if let node = insert(value, after: findInsertionPoint(value)) {
       // If the newly inserted node is the last one in the list, then update
       // the tail pointer.
@@ -44,7 +44,7 @@ public class BoundedPriorityQueue<T: Comparable> {
     }
   }
 
-  private func insert(value: T, after: Node?) -> Node? {
+  fileprivate func insert(_ value: T, after: Node?) -> Node? {
     if let previous = after {
 
       // If the queue is full and we have to insert at the end of the list,
@@ -78,18 +78,18 @@ public class BoundedPriorityQueue<T: Comparable> {
 
   /* Find the node after which to insert the new value. If this returns nil,
    the new value should be inserted at the head of the list. */
-  private func findInsertionPoint(value: T) -> Node? {
+  fileprivate func findInsertionPoint(_ value: T) -> Node? {
     var node = head
     var prev: Node? = nil
 
-    while let current = node where value < current.value {
+    while let current = node, value < current.value {
       prev = node
       node = current.next
     }
     return prev
   }
 
-  private func removeLeastImportantElement() {
+  fileprivate func removeLeastImportantElement() {
     if let last = tail {
       tail = last.previous
       tail?.next = nil
@@ -101,7 +101,7 @@ public class BoundedPriorityQueue<T: Comparable> {
     // this is much slower on large lists.
   }
 
-  public func dequeue() -> T? {
+  open func dequeue() -> T? {
     if let first = head {
       count -= 1
       if count == 0 {

Bounded Priority Queue/Tests/Tests.xcodeproj/project.pbxproj

@@ -82,10 +82,11 @@
 			isa = PBXProject;
 			attributes = {
 				LastSwiftUpdateCheck = 0720;
-				LastUpgradeCheck = 0720;
+				LastUpgradeCheck = 0820;
 				TargetAttributes = {
 					B80004B21C83E342001FE2D7 = {
 						CreatedOnToolsVersion = 7.2.1;
+						LastSwiftMigration = 0820;
 					};
 				};
 			};
@@ -132,12 +133,49 @@
 		B80004AD1C83E324001FE2D7 /* Debug */ = {
 			isa = XCBuildConfiguration;
 			buildSettings = {
+				CLANG_WARN_BOOL_CONVERSION = YES;
+				CLANG_WARN_CONSTANT_CONVERSION = YES;
+				CLANG_WARN_EMPTY_BODY = YES;
+				CLANG_WARN_ENUM_CONVERSION = YES;
+				CLANG_WARN_INFINITE_RECURSION = YES;
+				CLANG_WARN_INT_CONVERSION = YES;
+				CLANG_WARN_SUSPICIOUS_MOVE = YES;
+				CLANG_WARN_UNREACHABLE_CODE = YES;
+				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
+				ENABLE_STRICT_OBJC_MSGSEND = YES;
+				ENABLE_TESTABILITY = YES;
+				GCC_NO_COMMON_BLOCKS = YES;
+				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
+				GCC_WARN_ABOUT_RETURN_TYPE = YES;
+				GCC_WARN_UNDECLARED_SELECTOR = YES;
+				GCC_WARN_UNINITIALIZED_AUTOS = YES;
+				GCC_WARN_UNUSED_FUNCTION = YES;
+				GCC_WARN_UNUSED_VARIABLE = YES;
+				ONLY_ACTIVE_ARCH = YES;
 			};
 			name = Debug;
 		};
 		B80004AE1C83E324001FE2D7 /* Release */ = {
 			isa = XCBuildConfiguration;
 			buildSettings = {
+				CLANG_WARN_BOOL_CONVERSION = YES;
+				CLANG_WARN_CONSTANT_CONVERSION = YES;
+				CLANG_WARN_EMPTY_BODY = YES;
+				CLANG_WARN_ENUM_CONVERSION = YES;
+				CLANG_WARN_INFINITE_RECURSION = YES;
+				CLANG_WARN_INT_CONVERSION = YES;
+				CLANG_WARN_SUSPICIOUS_MOVE = YES;
+				CLANG_WARN_UNREACHABLE_CODE = YES;
+				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
+				ENABLE_STRICT_OBJC_MSGSEND = YES;
+				GCC_NO_COMMON_BLOCKS = YES;
+				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
+				GCC_WARN_ABOUT_RETURN_TYPE = YES;
+				GCC_WARN_UNDECLARED_SELECTOR = YES;
+				GCC_WARN_UNINITIALIZED_AUTOS = YES;
+				GCC_WARN_UNUSED_FUNCTION = YES;
+				GCC_WARN_UNUSED_VARIABLE = YES;
+				SWIFT_OPTIMIZATION_LEVEL = "-Owholemodule";
 			};
 			name = Release;
 		};
@@ -188,6 +226,7 @@
 				SDKROOT = macosx;
 				SWIFT_OBJC_BRIDGING_HEADER = "";
 				SWIFT_OPTIMIZATION_LEVEL = "-Onone";
+				SWIFT_VERSION = 3.0;
 			};
 			name = Debug;
 		};
@@ -230,6 +269,7 @@
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				SDKROOT = macosx;
 				SWIFT_OBJC_BRIDGING_HEADER = "";
+				SWIFT_VERSION = 3.0;
 			};
 			name = Release;
 		};

Bounded Priority Queue/Tests/Tests.xcodeproj/xcshareddata/xcschemes/Tests.xcscheme

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <Scheme
-   LastUpgradeVersion = "0730"
+   LastUpgradeVersion = "0820"
    version = "1.3">
    <BuildAction
       parallelizeBuildables = "YES"

Counting Sort/CountingSort.swift

@@ -6,41 +6,39 @@
 //  Copyright © 2016 Ali Hafizji. All rights reserved.
 //
 
-import Foundation
-
 enum CountingSortError: Error {
-    case arrayEmpty
+  case arrayEmpty
 }
 
-func countingSort(array: [Int]) throws -> [Int] {
-    guard array.count > 0 else {
-        throw CountingSortError.arrayEmpty
-    }
-    
-    // Step 1
-    // Create an array to store the count of each element
-    let maxElement = array.max() ?? 0
-    
-    var countArray = [Int](repeating: 0, count: Int(maxElement + 1))
-    for element in array {
-        countArray[element] += 1
-    }
-    
-    // Step 2
-    // Set each value to be the sum of the previous two values
-    for index in 1 ..< countArray.count {
-        let sum = countArray[index] + countArray[index - 1]
-        countArray[index] = sum
-    }
-    
-    print(countArray)
-    
-    // Step 3
-    // Place the element in the final array as per the number of elements before it
-    var sortedArray = [Int](repeating: 0, count: array.count)
-    for element in array {
-        countArray[element] -= 1
-        sortedArray[countArray[element]] = element
-    }
-    return sortedArray
+func countingSort(_ array: [Int]) throws -> [Int] {
+  guard array.count > 0 else {
+    throw CountingSortError.arrayEmpty
+  }
+
+  // Step 1
+  // Create an array to store the count of each element
+  let maxElement = array.max() ?? 0
+
+  var countArray = [Int](repeating: 0, count: Int(maxElement + 1))
+  for element in array {
+    countArray[element] += 1
+  }
+
+  // Step 2
+  // Set each value to be the sum of the previous two values
+  for index in 1 ..< countArray.count {
+    let sum = countArray[index] + countArray[index - 1]
+    countArray[index] = sum
+  }
+
+  print(countArray)
+
+  // Step 3
+  // Place the element in the final array as per the number of elements before it
+  var sortedArray = [Int](repeating: 0, count: array.count)
+  for element in array {
+    countArray[element] -= 1
+    sortedArray[countArray[element]] = element
+  }
+  return sortedArray
 }

Counting Sort/Tests/Tests.xcodeproj/project.pbxproj

@@ -83,11 +83,12 @@
 			isa = PBXProject;
 			attributes = {
 				LastSwiftUpdateCheck = 0720;
-				LastUpgradeCheck = 0720;
+				LastUpgradeCheck = 0820;
 				ORGANIZATIONNAME = "Swift Algorithm Club";
 				TargetAttributes = {
 					7B2BBC7F1C779D720067B71D = {
 						CreatedOnToolsVersion = 7.2;
+						LastSwiftMigration = 0820;
 					};
 				};
 			};
@@ -145,8 +146,10 @@
 				CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR;
 				CLANG_WARN_EMPTY_BODY = YES;
 				CLANG_WARN_ENUM_CONVERSION = YES;
+				CLANG_WARN_INFINITE_RECURSION = YES;
 				CLANG_WARN_INT_CONVERSION = YES;
 				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
+				CLANG_WARN_SUSPICIOUS_MOVE = YES;
 				CLANG_WARN_UNREACHABLE_CODE = YES;
 				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
 				CODE_SIGN_IDENTITY = "-";
@@ -189,8 +192,10 @@
 				CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR;
 				CLANG_WARN_EMPTY_BODY = YES;
 				CLANG_WARN_ENUM_CONVERSION = YES;
+				CLANG_WARN_INFINITE_RECURSION = YES;
 				CLANG_WARN_INT_CONVERSION = YES;
 				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
+				CLANG_WARN_SUSPICIOUS_MOVE = YES;
 				CLANG_WARN_UNREACHABLE_CODE = YES;
 				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
 				CODE_SIGN_IDENTITY = "-";
@@ -209,6 +214,7 @@
 				MACOSX_DEPLOYMENT_TARGET = 10.11;
 				MTL_ENABLE_DEBUG_INFO = NO;
 				SDKROOT = macosx;
+				SWIFT_OPTIMIZATION_LEVEL = "-Owholemodule";
 			};
 			name = Release;
 		};
@@ -220,6 +226,7 @@
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/../Frameworks @loader_path/../Frameworks";
 				PRODUCT_BUNDLE_IDENTIFIER = swift.algorithm.club.Tests;
 				PRODUCT_NAME = "$(TARGET_NAME)";
+				SWIFT_VERSION = 3.0;
 			};
 			name = Debug;
 		};
@@ -231,6 +238,7 @@
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/../Frameworks @loader_path/../Frameworks";
 				PRODUCT_BUNDLE_IDENTIFIER = swift.algorithm.club.Tests;
 				PRODUCT_NAME = "$(TARGET_NAME)";
+				SWIFT_VERSION = 3.0;
 			};
 			name = Release;
 		};

Counting Sort/Tests/Tests.xcodeproj/xcshareddata/xcschemes/Tests.xcscheme

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <Scheme
-   LastUpgradeVersion = "0720"
+   LastUpgradeVersion = "0820"
    version = "1.3">
    <BuildAction
       parallelizeBuildables = "YES"