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32 lines
591 B
Go
32 lines
591 B
Go
package slices
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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 TestReverse(t *testing.T) {
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t.Parallel()
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for _, tc := range []struct {
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in []int
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expect []int
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}{
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{in: []int{1, 2, 3}, expect: []int{3, 2, 1}},
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{in: []int{1, 2}, expect: []int{2, 1}},
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{in: []int{1}, expect: []int{1}},
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} {
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s := make([]int, len(tc.in))
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copy(s, tc.in)
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Reverse(s)
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assert.Equal(t, tc.expect, s)
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}
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}
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func TestUniqueBy(t *testing.T) {
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t.Parallel()
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s := UniqueBy([]int{1, 2, 3, 4, 3, 1, 1, 4, 2}, func(i int) int { return i % 3 })
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assert.Equal(t, []int{1, 2, 3}, s)
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}
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