func TestPeekBufferHasItem(t *testing.T) {
testCaseList := []testCaseForPeekBufferHasItem{
{data: "12345", expected: true},
{data: "", expected: false},
}
for testIndex, testCase := range testCaseList {
buffer := scanner.NewPeekBuffer()
for _, testData := range testCase.data {
buffer.Enqueue(testData)
}
actual := buffer.HasItem()
expected := testCase.expected
if actual != expected {
t.Errorf("testCase[%d] expected=%#v, actual=%#v", testIndex, expected, actual)
}
}
}
func TestPeekBufferLength(t *testing.T) {
testCaseList := []testCaseForPeekBufferLength{
{data: "12345", expected: 5},
{data: "日本語", expected: 3},
}
for testIndex, testCase := range testCaseList {
buffer := scanner.NewPeekBuffer()
for _, testData := range testCase.data {
buffer.Enqueue(testData)
}
actual := buffer.Length()
expected := testCase.expected
if actual != expected {
t.Errorf("testCase[%d] expected=%#v, actual=%#v", testIndex, expected, actual)
}
}
}
func TestPeekBufferPeek(t *testing.T) {
testCaseList := []testCaseForPeekBufferPeek{
{data: "12345", expected: '1'},
}
for testIndex, testCase := range testCaseList {
buffer := scanner.NewPeekBuffer()
for _, testData := range testCase.data {
buffer.Enqueue(testData)
}
beforeLength := buffer.Length()
expected := testCase.expected
actual := buffer.Peek()
if actual != expected {
t.Errorf("testCase[%d] expected=%#v, actual=%#v", testIndex, expected, actual)
}
afterLength := buffer.Length()
if beforeLength != afterLength {
t.Errorf("testCase[%d] lengt changed", testIndex)
}
}
}
func TestPeekBufferDequeue(t *testing.T) {
testCaseList := []testCaseForPeekBufferDequeue{
{data: "12345", expected: []rune{'1', '2', '3', '4', '5'}},
}
for testIndex, testCase := range testCaseList {
buffer := scanner.NewPeekBuffer()
for _, testData := range testCase.data {
buffer.Enqueue(testData)
}
for expectedIndex, expected := range testCase.expected {
beforeLength := buffer.Length()
actual := buffer.Dequeue()
if actual != expected {
t.Errorf("testCase[%d:%d] expected=%#v, actual=%#v", testIndex, expectedIndex, expected, actual)
}
afterLength := buffer.Length()
if beforeLength-1 != afterLength {
t.Errorf("testCase[%d:%d] length is wrong", testIndex, expectedIndex)
}
}
}
}
func TestPeekBufferEnqueue(t *testing.T) {
testCaseList := []testCaseForPeekBufferEnqueue{
{data: "12345", expected: true},
{data: "", expected: false},
}
for testIndex, testCase := range testCaseList {
buffer := scanner.NewPeekBuffer()
for _, testData := range testCase.data {
beforeLength := buffer.Length()
buffer.Enqueue(testData)
afterLength := buffer.Length()
if beforeLength+1 != afterLength {
t.Errorf("testCase[%d] length is wrong", testIndex)
}
}
actual := buffer.HasItem()
expected := testCase.expected
if actual != expected {
t.Errorf("testCase[%d] expected=%#v, actual=%#v", testIndex, expected, actual)
}
}
}
func TestNewPeekBuffer(t *testing.T) {
actual := scanner.NewPeekBuffer()
if actual == nil {
t.Error("PeekBuffer not created")
}
}