mirror of
https://github.com/jesseduffield/lazygit.git
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65 lines
1.2 KiB
Go
65 lines
1.2 KiB
Go
package utils
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import (
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"testing"
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"github.com/stretchr/testify/assert"
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)
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func TestNewHistoryBuffer(t *testing.T) {
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hb := NewHistoryBuffer[int](5)
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assert.NotNil(t, hb)
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assert.Equal(t, 5, hb.maxSize)
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assert.Equal(t, 0, len(hb.items))
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}
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func TestPush(t *testing.T) {
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hb := NewHistoryBuffer[int](3)
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hb.Push(1)
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hb.Push(2)
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hb.Push(3)
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hb.Push(4)
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assert.Equal(t, 3, len(hb.items))
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assert.Equal(t, []int{4, 3, 2}, hb.items)
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}
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func TestPeekAt(t *testing.T) {
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hb := NewHistoryBuffer[int](3)
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hb.Push(1)
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hb.Push(2)
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hb.Push(3)
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item, err := hb.PeekAt(0)
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assert.Nil(t, err)
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assert.Equal(t, 3, item)
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item, err = hb.PeekAt(1)
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assert.Nil(t, err)
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assert.Equal(t, 2, item)
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item, err = hb.PeekAt(2)
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assert.Nil(t, err)
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assert.Equal(t, 1, item)
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item, err = hb.PeekAt(-1)
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assert.Nil(t, err)
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assert.Equal(t, 0, item)
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_, err = hb.PeekAt(3)
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assert.NotNil(t, err)
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assert.Equal(t, "Index out of range", err.Error())
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_, err = hb.PeekAt(-2)
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assert.NotNil(t, err)
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assert.Equal(t, "Index out of range", err.Error())
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}
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func TestPeekAtEmptyBuffer(t *testing.T) {
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hb := NewHistoryBuffer[int](3)
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_, err := hb.PeekAt(0)
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assert.NotNil(t, err)
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assert.Equal(t, "Buffer is empty", err.Error())
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}
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