Dmitry Sergeev
72 lines
2.0 KiB
Go
72 lines
2.0 KiB
Go
package main
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import (
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"testing"
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"mxl-player/internal/playback"
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)
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func TestVideoDropTracker(t *testing.T) {
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tests := []struct {
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name string
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observations [][2]uint64
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want []uint64
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}{
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{
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name: "counts gaps within generation",
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observations: [][2]uint64{{1, 10}, {1, 11}, {1, 15}},
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want: []uint64{0, 0, 3},
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},
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{
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name: "higher index from new generation resets baseline",
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observations: [][2]uint64{{1, 10}, {2, 1000000}, {2, 1000001}},
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want: []uint64{0, 0, 0},
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},
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{
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name: "lower index from new generation resets baseline",
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observations: [][2]uint64{{1, 100}, {2, 5}, {2, 7}},
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want: []uint64{0, 0, 1},
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},
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{
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name: "index restart within generation resets baseline",
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observations: [][2]uint64{{1, 100}, {1, 0}, {1, 1}},
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want: []uint64{0, 0, 0},
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},
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{
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name: "zero is a valid first index",
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observations: [][2]uint64{{1, 0}, {1, 2}},
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want: []uint64{0, 1},
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},
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}
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for _, test := range tests {
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t.Run(test.name, func(t *testing.T) {
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var tracker videoDropTracker
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source := playback.FeedConfig{Domain: "/mxl", UUID: "video"}
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for index, observation := range test.observations {
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got := tracker.Observe(observation[0], source, observation[1])
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if got != test.want[index] {
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t.Fatalf("Observe(%d, %d) = %d, want %d",
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observation[0], observation[1], got, test.want[index])
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}
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}
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})
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}
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}
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func TestVideoDropTrackerResetsWhenSourceChanges(t *testing.T) {
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var tracker videoDropTracker
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first := playback.FeedConfig{Domain: "/mxl", UUID: "first"}
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second := playback.FeedConfig{Domain: "/mxl", UUID: "second"}
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if got := tracker.Observe(1, first, 10); got != 0 {
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t.Fatalf("first Observe() = %d, want 0", got)
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}
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if got := tracker.Observe(1, second, 1000000); got != 0 {
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t.Fatalf("source-changing Observe() = %d, want 0", got)
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}
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if got := tracker.Observe(1, second, 1000002); got != 1 {
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t.Fatalf("same-source Observe() = %d, want 1", got)
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}
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}
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