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change: change update and insert function in link datastruture

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This commit is contained in:
dudaodong
2022-12-10 17:45:29 +08:00
parent 7d8d9c3543
commit 4e457ad672
6 changed files with 201 additions and 245 deletions
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23
datastructure/link/doublylink_test.go
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@@ -41,29 +41,24 @@ func TestDoublyLink_InsertAt(t *testing.T) {
link := NewDoublyLink[int]()
err := link.InsertAt(1, 1)
assert.IsNotNil(err)
link.InsertAt(1, 1) //do nothing
link.InsertAt(0, 1)
link.InsertAt(1, 2)
link.InsertAt(2, 4)
link.InsertAt(2, 3)
link.Print()
expected := []int{1, 2, 3, 4}
values := link.Values()
assert.Equal(expected, values)
}
func TestDoublyLink_DeleteAtHead(t *testing.T) {
assert := internal.NewAssert(t, "TestDoublyLink_DeleteAtHead")
link := NewDoublyLink[int]()
err := link.DeleteAtHead()
assert.IsNotNil(err)
link.DeleteAtHead()
link.InsertAtTail(1)
link.InsertAtTail(2)
@@ -71,7 +66,6 @@ func TestDoublyLink_DeleteAtHead(t *testing.T) {
link.InsertAtTail(4)
link.DeleteAtHead()
link.Print()
expected := []int{2, 3, 4}
values := link.Values()
@@ -83,8 +77,7 @@ func TestDoublyLink_DeleteAtTail(t *testing.T) {
assert := internal.NewAssert(t, "TestDoublyLink_DeleteAtTail")
link := NewDoublyLink[int]()
err := link.DeleteAtTail()
assert.IsNotNil(err)
link.DeleteAtTail()
link.InsertAtTail(1)
link.InsertAtTail(2)
@@ -92,7 +85,6 @@ func TestDoublyLink_DeleteAtTail(t *testing.T) {
link.InsertAtTail(4)
link.DeleteAtTail()
link.Print()
expected := []int{1, 2, 3}
values := link.Values()
@@ -104,8 +96,7 @@ func TestDoublyLink_DeleteAt(t *testing.T) {
assert := internal.NewAssert(t, "TestDoublyLink_DeleteAt")
link := NewDoublyLink[int]()
err := link.DeleteAt(0)
assert.IsNotNil(err)
link.DeleteAt(0)
link.InsertAtTail(1)
link.InsertAtTail(2)
@@ -113,11 +104,7 @@ func TestDoublyLink_DeleteAt(t *testing.T) {
link.InsertAtTail(4)
link.InsertAtTail(5)
err = link.DeleteAt(5)
assert.IsNotNil(err)
err = link.DeleteAt(0)
assert.IsNil(err)
link.DeleteAt(0)
assert.Equal([]int{2, 3, 4, 5}, link.Values())
link.DeleteAt(3)