260 lines
6.2 KiB
Go
260 lines
6.2 KiB
Go
package pointer
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import (
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"os"
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"testing"
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"git.adyxax.org/adyxax/gofunge/pkg/field"
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"github.com/stretchr/testify/require"
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)
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func TestBegin(t *testing.T) {
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t.Run("empty", func(t *testing.T) {
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expected := NewStackStack()
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expected.head = &Stack{data: make([]int, 0), next: expected.head}
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expected.head.next.Push(0)
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expected.head.next.Push(0)
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expected.height++
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ss := NewStackStack()
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p := NewPointer()
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ss.Begin(p)
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require.Equal(t, expected, ss)
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x, y := p.GetStorageOffset()
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require.Equal(t, 1, x)
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require.Equal(t, 0, y)
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// Let's push another one
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expected.head = &Stack{data: make([]int, 0), next: expected.head}
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expected.head.next.Push(1)
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expected.head.next.Push(0)
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expected.height++
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ss.Begin(p)
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require.Equal(t, expected, ss)
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x, y = p.GetStorageOffset()
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require.Equal(t, 1, x)
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require.Equal(t, 0, y)
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})
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t.Run("negative", func(t *testing.T) {
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expected := NewStackStack()
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expected.head = &Stack{size: 5, height: 5, data: make([]int, 5), next: expected.head}
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expected.head.next.Push(0)
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expected.head.next.Push(0)
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expected.height++
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p := NewPointer()
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file, err := os.Open("../field/test_data/hello.b98")
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require.NoError(t, err, "Failed to open file")
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f, err := field.Load(file)
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p.Step(*f)
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ss := NewStackStack()
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ss.head.Push(-5)
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ss.Begin(p)
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require.Equal(t, expected, ss)
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x, y := p.GetStorageOffset()
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require.Equal(t, 2, x)
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require.Equal(t, 0, y)
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})
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t.Run("ask to copy more than we have", func(t *testing.T) {
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expected := NewStackStack()
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expected.head = &Stack{size: 34, height: 34, data: make([]int, 34), next: expected.head}
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expected.head.data[33] = 18
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expected.head.next.Push(18)
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expected.head.next.Push(2)
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expected.head.next.Push(3)
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expected.height++
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p := NewPointer()
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p.SetStorageOffset(2, 3)
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file, err := os.Open("../field/test_data/hello.b98")
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require.NoError(t, err, "Failed to open file")
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f, err := field.Load(file)
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p.Step(*f)
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ss := NewStackStack()
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ss.head.Push(18)
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ss.head.Push(34)
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ss.Begin(p)
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require.Equal(t, expected, ss)
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x, y := p.GetStorageOffset()
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require.Equal(t, 2, x)
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require.Equal(t, 0, y)
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})
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t.Run("normal", func(t *testing.T) {
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expected := NewStackStack()
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expected.head = &Stack{size: 4, height: 4, data: []int{12, 14, -2, 5}, next: expected.head}
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expected.head.next.Push(7)
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expected.head.next.Push(12)
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expected.head.next.Push(14)
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expected.head.next.Push(-2)
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expected.head.next.Push(5)
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expected.head.next.Push(36)
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expected.head.next.Push(42)
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expected.height++
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p := NewPointer()
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p.SetStorageOffset(36, 42)
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ss := NewStackStack()
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ss.head.Push(7)
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ss.head.Push(12)
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ss.head.Push(14)
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ss.head.Push(-2)
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ss.head.Push(5)
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ss.head.Push(4)
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ss.Begin(p)
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require.Equal(t, expected, ss)
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})
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}
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func TestEnd(t *testing.T) {
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t.Run("empty", func(t *testing.T) {
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expected := NewStackStack()
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p := NewPointer()
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ss := NewStackStack()
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ss.Begin(p)
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reflect := ss.End(p)
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require.Equal(t, false, reflect)
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require.Equal(t, expected, ss)
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})
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t.Run("drop", func(t *testing.T) {
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expected := NewStackStack()
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expected.head.Push(7)
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expected.head.Push(12)
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expected.head.Push(14)
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expected.head.Push(-2)
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expected.head.Push(5)
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expected.head.Pop()
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expected.head.Pop()
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expected.head.Pop()
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p := NewPointer()
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ss := NewStackStack()
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ss.head.Push(7)
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ss.head.Push(12)
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ss.head.Push(14)
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ss.head.Push(-2)
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ss.head.Push(5)
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ss.head.Push(0)
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ss.Begin(p)
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ss.head.Push(18)
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ss.head.Push(42)
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ss.head.Push(-3)
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reflect := ss.End(p)
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require.Equal(t, false, reflect)
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require.Equal(t, expected, ss)
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})
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t.Run("drop too much", func(t *testing.T) {
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expected := NewStackStack()
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p := NewPointer()
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ss := NewStackStack()
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ss.Begin(p)
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ss.head.Push(-3)
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reflect := ss.End(p)
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require.Equal(t, false, reflect)
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require.Equal(t, expected, ss)
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})
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t.Run("reflect", func(t *testing.T) {
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expected := NewStackStack()
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p := NewPointer()
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ss := NewStackStack()
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reflect := ss.End(p)
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require.Equal(t, true, reflect)
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require.Equal(t, expected, ss)
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})
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t.Run("transfert", func(t *testing.T) {
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expected := NewStackStack()
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expected.head.size = 5
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expected.head.data = make([]int, 5)
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expected.head.Push(7)
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expected.head.Push(12)
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expected.head.Push(14)
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expected.head.Push(-2)
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expected.head.Push(5)
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p := NewPointer()
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ss := NewStackStack()
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ss.head.size = 4
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ss.head.data = make([]int, 4)
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ss.head.Push(7)
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ss.head.Push(0)
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ss.Begin(p)
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ss.head.Push(0)
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ss.head.Push(18)
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ss.head.Push(42)
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ss.head.Push(7)
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ss.head.Push(12)
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ss.head.Push(14)
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ss.head.Push(-2)
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ss.head.Push(5)
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ss.head.Push(4)
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reflect := ss.End(p)
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require.Equal(t, false, reflect)
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require.Equal(t, expected, ss)
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})
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}
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func TestUnder(t *testing.T) {
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t.Run("empty", func(t *testing.T) {
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expected := NewStackStack()
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ss := NewStackStack()
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reflect := ss.Under()
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require.Equal(t, true, reflect)
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require.Equal(t, expected, ss)
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})
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t.Run("positive", func(t *testing.T) {
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pe := NewPointer()
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expected := NewStackStack()
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expected.head.Push(1)
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expected.head.Push(2)
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expected.head.Push(3)
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expected.head.Push(6)
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expected.head.Push(0)
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expected.Begin(pe)
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expected.head.Push(0)
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expected.head.Push(0)
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expected.head.Push(6)
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expected.head.next.Pop()
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expected.head.next.Pop()
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expected.head.next.Pop()
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p := NewPointer()
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ss := NewStackStack()
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ss.head.Push(1)
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ss.head.Push(2)
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ss.head.Push(3)
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ss.head.Push(6)
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ss.head.Push(0)
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ss.Begin(p)
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ss.head.Push(3)
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reflect := ss.Under()
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require.Equal(t, false, reflect)
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require.Equal(t, expected, ss)
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})
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t.Run("negative", func(t *testing.T) {
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pe := NewPointer()
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expected := NewStackStack()
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expected.Begin(pe)
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expected.head.next.Push(12)
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expected.head.next.Push(5)
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expected.head.next.Push(8)
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expected.head.Push(8)
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expected.head.Push(5)
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expected.head.Push(12)
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expected.head.Push(-3)
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expected.head.Pop()
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expected.head.Pop()
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expected.head.Pop()
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expected.head.Pop()
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p := NewPointer()
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ss := NewStackStack()
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ss.Begin(p)
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ss.head.Push(8)
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ss.head.Push(5)
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ss.head.Push(12)
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ss.head.Push(-3)
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reflect := ss.Under()
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require.Equal(t, false, reflect)
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require.Equal(t, expected, ss)
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})
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}
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func TestPushPop(t *testing.T) {
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ss := NewStackStack()
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ss.Push(12)
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ss.Push(5)
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v := ss.Pop()
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require.Equal(t, 5, v)
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v = ss.Pop()
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require.Equal(t, 12, v)
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}
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