Function TestLatestBuildFailed

coderd/prebuilds/preset_snapshot_test.go:878–960

If the latest build failed, backoff exponentially with the given interval.

(t *testing.T)

// If the latest build failed, backoff exponentially with the given interval.
func TestLatestBuildFailed(t *testing.T) {
	t.Parallel()
	current := opts[optionSet0]
	other := opts[optionSet1]
	clock := quartz.NewMock(t)

	// GIVEN: two presets.
	presets := []database.GetTemplatePresetsWithPrebuildsRow{
		preset(true, 1, current),
		preset(true, 1, other),
	}

	// GIVEN: running prebuilds only for one preset (the other will be failing, as evidenced by the backoffs below).
	running := []database.GetRunningPrebuiltWorkspacesRow{
		prebuiltWorkspace(other, clock),
	}

	// GIVEN: NO prebuilds in progress.
	var inProgress []database.CountInProgressPrebuildsRow

	// GIVEN: a backoff entry.
	lastBuildTime := clock.Now()
	numFailed := 1
	backoffs := []database.GetPresetsBackoffRow{
		{
			TemplateVersionID: current.templateVersionID,
			PresetID:          current.presetID,
			NumFailed:         int32(numFailed),
			LastBuildAt:       lastBuildTime,
		},
	}

	// WHEN: calculating the current preset's state.
	snapshot := prebuilds.NewGlobalSnapshot(presets, nil, running, inProgress, nil, backoffs, nil, clock, testutil.Logger(t))
	psCurrent, err := snapshot.FilterByPreset(current.presetID)
	require.NoError(t, err)

	// THEN: reconciliation should backoff.
	state := psCurrent.CalculateState()
	actions, err := psCurrent.CalculateActions(backoffInterval)
	require.NoError(t, err)
	validateState(t, prebuilds.ReconciliationState{
		Actual: 0, Desired: 1,
	}, *state)
	validateActions(t, []*prebuilds.ReconciliationActions{
		{
			ActionType:   prebuilds.ActionTypeBackoff,
			BackoffUntil: lastBuildTime.Add(time.Duration(numFailed) * backoffInterval),
		},
	}, actions)

	// WHEN: calculating the other preset's state.
	psOther, err := snapshot.FilterByPreset(other.presetID)
	require.NoError(t, err)

	// THEN: it should NOT be in backoff because all is OK.
	state = psOther.CalculateState()
	actions, err = psOther.CalculateActions(backoffInterval)