diff --git a/Connect4/connect4_lib/Sources/connect4_lib/players/Player.swift b/Connect4/connect4_lib/Sources/connect4_lib/players/Player.swift
index 3a1e5f1..00b2f6c 100644
--- a/Connect4/connect4_lib/Sources/connect4_lib/players/Player.swift
+++ b/Connect4/connect4_lib/Sources/connect4_lib/players/Player.swift
@@ -7,6 +7,10 @@ public class Player {
     
     init?(withId id: Int,
           withName name: String){
+        guard(id >= 0
+              && !(name.trimmingCharacters(in: .whitespacesAndNewlines).isEmpty))
+        else { return nil }
+        
         self.id = id
         self.name = name
     }
diff --git a/Connect4/connect4_lib/Tests/connect4_libTests/BotTest.swift b/Connect4/connect4_lib/Tests/connect4_libTests/BotTest.swift
new file mode 100644
index 0000000..20308a7
--- /dev/null
+++ b/Connect4/connect4_lib/Tests/connect4_libTests/BotTest.swift
@@ -0,0 +1,6 @@
+import XCTest
+import connect4_lib
+
+final class BotTest: XCTestCase {
+
+}
diff --git a/Connect4/connect4_lib/Tests/connect4_libTests/GameTest.swift b/Connect4/connect4_lib/Tests/connect4_libTests/GameTest.swift
new file mode 100644
index 0000000..a27f251
--- /dev/null
+++ b/Connect4/connect4_lib/Tests/connect4_libTests/GameTest.swift
@@ -0,0 +1,21 @@
+import XCTest
+import connect4_lib
+
+final class GameTest: XCTestCase {
+
+    override func setUpWithError() throws {
+        // Put setup code here. This method is called before the invocation of each test method in the class.
+    }
+
+    override func tearDownWithError() throws {
+        // Put teardown code here. This method is called after the invocation of each test method in the class.
+    }
+
+    func testExample() throws {
+        // This is an example of a functional test case.
+        // Use XCTAssert and related functions to verify your tests produce the correct results.
+        // Any test you write for XCTest can be annotated as throws and async.
+        // Mark your test throws to produce an unexpected failure when your test encounters an uncaught error.
+        // Mark your test async to allow awaiting for asynchronous code to complete. Check the results with assertions afterwards.
+    }
+}
diff --git a/Connect4/connect4_lib/Tests/connect4_libTests/HumanTest.swift b/Connect4/connect4_lib/Tests/connect4_libTests/HumanTest.swift
new file mode 100644
index 0000000..bcf6475
--- /dev/null
+++ b/Connect4/connect4_lib/Tests/connect4_libTests/HumanTest.swift
@@ -0,0 +1,32 @@
+import XCTest
+import connect4_lib
+
+final class HumanTest: XCTestCase {
+    
+    func scan() -> Int {
+        return 0
+    }
+    
+    func testInit() throws {
+        func expect(initHumanWithId id: Int,
+                    andName name: String,
+                    andScanner scanner: @escaping () -> Int,
+                    shouldNotBeNil: Bool) {
+            let human = Human(withId: id, withName: name, usingScanner: scanner)
+            if !shouldNotBeNil {
+                XCTAssertNil(human)
+                return
+            }
+            XCTAssertNotNil(human)
+            XCTAssertEqual(id, human?.id)
+            XCTAssertEqual(name, human?.name)
+        }
+        
+        expect(initHumanWithId: 0, andName: "Bob", andScanner: scan, shouldNotBeNil: true)
+        expect(initHumanWithId: -1, andName: "Bob", andScanner: scan, shouldNotBeNil: false)
+        expect(initHumanWithId: 0, andName: "", andScanner: scan, shouldNotBeNil: false)
+        expect(initHumanWithId: 0, andName: "   ", andScanner: scan, shouldNotBeNil: false)
+    }
+    
+    //not testing for pebcak
+}