Added Tests for list

Signed-off-by: ChaitanyaD48 <[email protected]>

go/list/list_test.go

@@ -0,0 +1,118 @@
+package list
+
+import (
+	"testing"
+)
+
+// Can initialize an empty list
+func TestInitEmptyList(t *testing.T) {
+    l := New[int]()
+    if l.Len() != 0 {
+        t.Errorf("Expected length of 0, got %d", l.Len())
+    }
+    if l.Front() != nil {
+        t.Error("Expected Front() to be nil")
+    }
+    if l.Back() != nil {
+        t.Error("Expected Back() to be nil")
+    }
+}
+    // Can insert an element at the front of the list
+func TestInsertFront(t *testing.T) {
+    l := New[int]()
+    e := l.PushFront(1)
+    if l.Len() != 1 {
+        t.Errorf("Expected length of 1, got %d", l.Len())
+    }
+    if l.Front() != e {
+        t.Error("Expected Front() to be the inserted element")
+    }
+    if l.Back() != e {
+        t.Error("Expected Back() to be the inserted element")
+    }
+}
+    // Can insert an element at the back of the list
+func TestInsertBack(t *testing.T) {
+    l := New[int]()
+    e := l.PushBack(1)
+    if l.Len() != 1 {
+        t.Errorf("Expected length of 1, got %d", l.Len())
+    }
+    if l.Front() != e {
+        t.Error("Expected Front() to be the inserted element")
+    }
+    if l.Back() != e {
+        t.Error("Expected Back() to be the inserted element")
+    }
+}
+    // Can insert an element at the front of an empty list
+func TestInsertFrontEmptyList(t *testing.T) {
+    l := New[int]()
+    e := l.PushFront(1)
+    if l.Len() != 1 {
+        t.Errorf("Expected length of 1, got %d", l.Len())
+    }
+    if l.Front() != e {
+        t.Error("Expected Front() to be the inserted element")
+    }
+    if l.Back() != e {
+        t.Error("Expected Back() to be the inserted element")
+    }
+}
+    // Can insert an element at the back of an empty list
+func TestInsertBackEmptyList(t *testing.T) {
+    l := New[int]()
+    e := l.PushBack(1)
+    if l.Len() != 1 {
+        t.Errorf("Expected length of 1, got %d", l.Len())
+    }
+    if l.Front() != e {
+        t.Error("Expected Front() to be the inserted element")
+    }
+    if l.Back() != e {
+        t.Error("Expected Back() to be the inserted element")
+    }
+}
+    // Can remove the only element from the list
+func TestRemoveOnlyElement(t *testing.T) {
+    l := New[int]()
+    e := l.PushFront(1)
+    l.Remove(e)
+    if l.Len() != 0 {
+        t.Errorf("Expected length of 0, got %d", l.Len())
+    }
+    if l.Front() != nil {
+        t.Error("Expected Front() to be nil")
+    }
+    if l.Back() != nil {
+        t.Error("Expected Back() to be nil")
+    }
+}
+func TestRemoveElement(t *testing.T) {
+    l := New[int]()
+    e := l.PushFront(1)
+    l.Remove(e)
+    if l.Len() != 0 {
+        t.Errorf("Expected length of 0, got %d", l.Len())
+    }
+    if l.Front() != nil {
+        t.Error("Expected Front() to be nil")
+    }
+    if l.Back() != nil {
+        t.Error("Expected Back() to be nil")
+    }
+}
+func TestGetFirstElement(t *testing.T) {
+    l := New[int]()
+    e := l.PushFront(1)
+    if l.Front() != e {
+        t.Error("Expected Front() to be the first element")
+    }
+}
+func TestGetLastElement(t *testing.T) {
+    l := New[int]()
+    e := l.PushBack(1)
+    if l.Back() != e {
+        t.Error("Expected Back() to be the last element")
+    }
+}