Add unit tests

Author: itsAkshayDubey

deck_test.go

@@ -1,2 +1,42 @@
+package main
 
+import (
+	"os"
+	"testing"
+)
 
+func TestGetNewDeck(t *testing.T) {
+	deck := getNewDeck()
+
+	if len(deck) != 52 {
+		t.Errorf("Expected deck length of 52, but got %v", len(deck))
+	}
+
+	if deck[0] != "Ace of Club" {
+		t.Errorf("Expected first card in deck to be Ace of Club, but got %v", deck[0])
+	}
+
+	if deck[len(deck)-1] != "Two of Spade" {
+		t.Errorf("Expected first card in deck to be Two of Spade, but got %v", deck[0])
+	}
+}
+
+func TestSaveToFileAndNewDeckFromFile(t *testing.T) {
+	os.Remove("_decktesting")
+	deck := getNewDeck()
+
+	deck.saveToFile("_decktesting")
+
+	newDeck := newDeckFromFile("_decktesting")
+
+	if len(deck) != 52 {
+		t.Errorf("Expected deck length of 52, but got %v", len(deck))
+	}
+
+	if len(newDeck) != 52 {
+		t.Errorf("Expected deck length of 52, but got %v", len(deck))
+	}
+
+	os.Remove("_decktesting")
+
+}