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@@ -0,0 +1,67 @@
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+import Foundation
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+import HealthKit
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+import LoopKit
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+import Testing
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+
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+@testable import Trio
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+
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+/// Pins the `PumpSettings` → `DeliveryLimits` mapping that
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+/// `BaseDeviceDataManager.pumpManager.didSet` performs inline before calling
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+/// `pumpManager.syncDeliveryLimits`. Keep this builder identical to the inline
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+/// expression in `DeviceDataManager.swift` so a regression that re-introduces
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+/// the default-collapse bug breaks here too.
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+@Suite("Delivery Limits Sync Tests") struct DeliveryLimitsSyncTests {
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+ private let basalUnit = HKUnit.internationalUnitsPerHour
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+ private let bolusUnit = HKUnit.internationalUnit()
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+
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+ private func makeSettings(maxBasal: Decimal, maxBolus: Decimal) -> PumpSettings {
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+ PumpSettings(insulinActionCurve: 6, maxBolus: maxBolus, maxBasal: maxBasal)
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+ }
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+
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+ private func deliveryLimits(from settings: PumpSettings) -> DeliveryLimits {
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+ DeliveryLimits(
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+ maximumBasalRate: HKQuantity(unit: .internationalUnitsPerHour, doubleValue: Double(settings.maxBasal)),
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+ maximumBolus: HKQuantity(unit: .internationalUnit(), doubleValue: Double(settings.maxBolus))
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+ )
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+ }
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+
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+ @Test("maxBasal maps to maximumBasalRate in U/hr") func testMaxBasalMapping() {
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+ let settings = makeSettings(maxBasal: 5.0, maxBolus: 10.0)
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+
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+ let limits = deliveryLimits(from: settings)
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+
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+ #expect(limits.maximumBasalRate?.doubleValue(for: basalUnit) == 5.0)
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+ }
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+
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+ @Test("maxBolus maps to maximumBolus in U") func testMaxBolusMapping() {
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+ let settings = makeSettings(maxBasal: 5.0, maxBolus: 10.0)
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+
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+ let limits = deliveryLimits(from: settings)
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+
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+ #expect(limits.maximumBolus?.doubleValue(for: bolusUnit) == 10.0)
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+ }
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+
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+ /// The derived limit must be the user's configured value, not the `PumpInitialSettings` default.
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+ @Test("User-configured limit is preserved, not collapsed to the 2 U/hr default") func testDoesNotFallBackToDefault() {
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+ let configuredMaxBasal: Decimal = 3.0
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+ let defaultMaxBasal = PumpConfig.PumpInitialSettings.default.maxBasalRateUnitsPerHour
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+
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+ let settings = makeSettings(maxBasal: configuredMaxBasal, maxBolus: 10.0)
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+ let limits = deliveryLimits(from: settings)
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+
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+ #expect(limits.maximumBasalRate?.doubleValue(for: basalUnit) == Double(configuredMaxBasal))
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+ #expect(limits.maximumBasalRate?.doubleValue(for: basalUnit) != defaultMaxBasal)
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+ }
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+
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+ /// The derived limit must be the user's configured value, not the `PumpInitialSettings` default.
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+ @Test("User-configured bolus limit is preserved, not collapsed to the default") func testBolusDoesNotFallBackToDefault() {
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+ let configuredMaxBolus: Decimal = 25.0
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+ let defaultMaxBolus = PumpConfig.PumpInitialSettings.default.maxBolusUnits
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+
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+ let settings = makeSettings(maxBasal: 3.0, maxBolus: configuredMaxBolus)
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+ let limits = deliveryLimits(from: settings)
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+
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+ #expect(limits.maximumBolus?.doubleValue(for: bolusUnit) == Double(configuredMaxBolus))
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+ #expect(limits.maximumBolus?.doubleValue(for: bolusUnit) != defaultMaxBolus)
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+ }
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+}
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