57 lines
1.1 KiB
Go
57 lines
1.1 KiB
Go
package sharedutil
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import (
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"slices"
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"testing"
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"github.com/dweymouth/supersonic/backend/mediaprovider"
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)
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func Test_ReorderItems(t *testing.T) {
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tracks := []*mediaprovider.Track{
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{ID: "a"}, // 0
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{ID: "b"}, // 1
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{ID: "c"}, // 2
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{ID: "d"}, // 3
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{ID: "e"}, // 4
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{ID: "f"}, // 5
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}
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// test MoveToTop:
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idxToMove := []int{0, 2, 3, 5}
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want := []*mediaprovider.Track{
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{ID: "a"},
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{ID: "c"},
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{ID: "d"},
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{ID: "f"},
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{ID: "b"},
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{ID: "e"},
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}
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newTracks := ReorderItems(tracks, idxToMove, 0)
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if !tracklistsEqual(t, newTracks, want) {
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t.Error("ReorderTracks: MoveToTop order incorrect")
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}
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// test MoveToBottom:
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idxToMove = []int{0, 2, 5}
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want = []*mediaprovider.Track{
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{ID: "b"},
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{ID: "d"},
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{ID: "e"},
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{ID: "a"},
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{ID: "c"},
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{ID: "f"},
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}
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newTracks = ReorderItems(tracks, idxToMove, len(tracks))
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if !tracklistsEqual(t, newTracks, want) {
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t.Error("ReorderTracks: MoveToBottom order incorrect")
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}
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}
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func tracklistsEqual(t *testing.T, a, b []*mediaprovider.Track) bool {
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t.Helper()
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return slices.EqualFunc(a, b, func(a, b *mediaprovider.Track) bool {
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return a.ID == b.ID
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})
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}
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