2021-09-21 00:28:31 +02:00
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package stack
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import (
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"testing"
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"github.com/stretchr/testify/require"
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)
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func TestClear(t *testing.T) {
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s := NewStack()
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s.Clear()
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require.Equal(t, 0, s.height)
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2021-09-21 00:28:31 +02:00
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}
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func TestDupicate(t *testing.T) {
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s := NewStack()
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s2 := NewStack()
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s.Duplicate()
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2021-09-22 23:42:16 +02:00
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require.Equal(t, s2.height, s.height)
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2021-09-21 00:28:31 +02:00
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s.Push(12)
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s.Duplicate()
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s2.Push(12)
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s2.Push(12)
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require.Equal(t, s2.height, s.height)
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require.Equal(t, s2.data, s.data)
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2021-09-21 00:28:31 +02:00
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}
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func TestPop(t *testing.T) {
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s := NewStack()
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v := s.Pop()
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require.Equal(t, 0, v)
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s.Push(12)
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s.Push(14)
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v = s.Pop()
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require.Equal(t, 14, v)
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v = s.Pop()
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require.Equal(t, 12, v)
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v = s.Pop()
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require.Equal(t, 0, v)
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}
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func TestPush(t *testing.T) {
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s := NewStack()
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for i := 0; i < 32; i++ {
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s.Push(i)
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}
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require.Equal(t, 32, s.size)
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s.Push(-1)
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require.Equal(t, 64, s.size)
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}
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func TestSwap(t *testing.T) {
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s := NewStack()
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s2 := NewStack()
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s.Swap()
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s2.Push(0)
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s2.Push(0)
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require.Equal(t, s2, s)
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s.Clear()
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s.Push(1)
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s.Swap()
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s2.Clear()
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s2.Push(1)
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s2.Push(0)
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require.Equal(t, s2, s)
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s.Clear()
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s.Push(1)
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s.Push(2)
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s2.Clear()
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s2.Push(2)
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s2.Push(1)
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s.Swap()
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require.Equal(t, s2, s)
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}
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