Matheus Macabu
e89aef57cb
* CloudMigrations: add slicesext.Map function to simplify dto creation * CloudMigrations: wire ngalert to cloud migration service
37 lines
871 B
Go
37 lines
871 B
Go
package slicesext_test
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import (
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"strconv"
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"testing"
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"github.com/stretchr/testify/require"
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"github.com/grafana/grafana/pkg/services/cloudmigration/slicesext"
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)
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func TestMap(t *testing.T) {
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t.Parallel()
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t.Run("mapping a nil slice does nothing and returns an empty slice", func(t *testing.T) {
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t.Parallel()
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require.Empty(t, slicesext.Map[any, any](nil, nil))
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})
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t.Run("mapping a non-nil slice with a nil function panics", func(t *testing.T) {
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t.Parallel()
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require.Panics(t, func() { slicesext.Map[int, any]([]int{1, 2, 3}, nil) })
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})
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t.Run("mapping a non-nil slice with a non-nil function returns the mapped slice", func(t *testing.T) {
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t.Parallel()
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original := []int{1, 2, 3}
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expected := []string{"1", "2", "3"}
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fn := func(i int) string { return strconv.Itoa(i) }
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require.ElementsMatch(t, expected, slicesext.Map(original, fn))
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})
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}
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