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@@ -0,0 +1,343 @@
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+import Foundation
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+import Testing
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+@testable import Trio
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+
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+@Suite("MealTotal Tests") struct MealTotalTests {
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+ // Helper methods for testing
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+ func createBasicProfile() -> Profile {
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+ var profile = Profile()
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+ profile.dia = 4
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+ profile.maxMealAbsorptionTime = 6
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+ profile.maxCOB = 120
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+ // profile.carbsAbsorptionRate = 30
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+ profile.min5mCarbImpact = 3
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+ profile.carbRatio = 10
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+ profile.currentBasal = 1.0
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+ // Note: In Swift we need to set sensitivities differently than in JS
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+ profile
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+ .isfProfile = ComputedInsulinSensitivities(
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+ units: .mgdL,
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+ userPreferredUnits: .mgdL,
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+ sensitivities: [ComputedInsulinSensitivityEntry(sensitivity: 40, offset: 0, start: "00:00:00")]
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+ )
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+ return profile
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+ }
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+
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+ func createBasicBasalProfile() -> [BasalProfileEntry] {
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+ [BasalProfileEntry(start: "00:00:00", minutes: 0, rate: 1.0)]
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+ }
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+
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+ func createGlucoseData(baseTime: Date, pattern: [Int]) -> [BloodGlucose] {
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+ var result: [BloodGlucose] = []
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+
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+ for (i, bg) in pattern.enumerated() {
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+ let timestamp = baseTime.addingTimeInterval(TimeInterval(i * 5 * 60))
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+
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+ result.append(BloodGlucose(
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+ sgv: bg,
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+ date: Decimal(timestamp.timeIntervalSince1970 * 1000), // JS uses ms
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+ dateString: timestamp
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+ ))
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+ }
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+
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+ return result.reversed()
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+ }
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+
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+ @Test("should calculate carb absorption correctly") func calculateCarbAbsorption() async {
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+ let baseTime = Date.from(isoString: "2016-06-19T12:00:00-04:00")
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+ let mealTime = Date.from(isoString: "2016-06-19T12:00:00-04:00")
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+ let testTime = Date.from(isoString: "2016-06-19T13:00:00-04:00") // 1 hour after meal
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+
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+ // Create glucose data showing rise after carbs
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+ var bgValues = Array(repeating: 100, count: 13)
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+ for i in 3 ..< 8 {
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+ bgValues[i] = 100 + ((i - 2) * 10) // 100, 110, 120, 130, 140
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+ }
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+ for i in 8 ..< 13 {
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+ bgValues[i] = 150 // plateau
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+ }
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+
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+ let glucoseData = createGlucoseData(baseTime: baseTime, pattern: bgValues)
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+
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+ // Create insulin data - bolus at same time as carbs
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+ let pumpHistory = [
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+ PumpHistoryEvent(
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+ id: UUID().uuidString,
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+ type: .bolus,
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+ timestamp: mealTime,
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+ amount: 3.0
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+ )
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+ ]
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+
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+ // Carb treatment
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+ let treatments = [
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+ MealInput(
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+ timestamp: mealTime,
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+ carbs: 30,
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+ nsCarbs: 30,
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+ bolus: nil,
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+ journalCarbs: nil,
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+ bwCarbs: nil
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+ ),
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+ MealInput(
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+ timestamp: mealTime,
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+ carbs: nil,
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+ nsCarbs: nil,
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+ bolus: 3,
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+ journalCarbs: nil,
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+ bwCarbs: nil
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+ )
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+ ]
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+
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+ let profile = createBasicProfile()
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+ let basalProfile = createBasicBasalProfile()
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+
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+ let result = MealTotal.recentCarbs(
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+ treatments: treatments,
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+ pumpHistory: pumpHistory,
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+ profile: profile,
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+ basalProfile: basalProfile,
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+ glucose: glucoseData,
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+ time: testTime
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+ )
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+
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+ // After 1 hour, we should see partial carb absorption
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+ #expect(result != nil)
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+ #expect(result?.mealCOB == 12)
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+ #expect(result?.currentDeviation.isWithin(0.1, of: 3) == true)
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+ }
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+
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+ @Test("should return nil when no treatments provided") func emptyObjectWhenNoTreatments() async {
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+ let time = Date.from(isoString: "2016-06-19T13:00:00-04:00")
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+ let glucoseData = [
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+ BloodGlucose(
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+ sgv: 100,
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+ date: Decimal(time.timeIntervalSince1970 * 1000),
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+ dateString: time
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+ )
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+ ]
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+
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+ let profile = createBasicProfile()
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+ let basalProfile = createBasicBasalProfile()
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+
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+ let result = MealTotal.recentCarbs(
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+ treatments: [],
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+ pumpHistory: [],
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+ profile: profile,
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+ basalProfile: basalProfile,
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+ glucose: glucoseData,
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+ time: time
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+ )
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+
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+ #expect(result == nil)
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+ }
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+
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+ @Test("should calculate carbs correctly for treatments within the meal window") func calcCarbsWithinMealWindow() async {
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+ let baseTime = Date.from(isoString: "2016-06-19T12:00:00-04:00")
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+ let testTime = Date.from(isoString: "2016-06-19T13:00:00-04:00")
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+
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+ let treatments = [
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+ MealInput(
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+ timestamp: baseTime,
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+ carbs: 20,
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+ nsCarbs: 20,
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+ bolus: nil,
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+ journalCarbs: nil,
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+ bwCarbs: nil
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+ )
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+ ]
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+
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+ // Create glucose pattern with slight rise
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+ let glucoseData = [
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+ BloodGlucose(
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+ sgv: 110,
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+ date: Decimal(baseTime.addingTimeInterval(60 * 60).timeIntervalSince1970 * 1000),
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+ dateString: baseTime.addingTimeInterval(60 * 60)
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+ ),
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+ BloodGlucose(
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+ sgv: 105,
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+ date: Decimal(baseTime.addingTimeInterval(30 * 60).timeIntervalSince1970 * 1000),
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+ dateString: baseTime.addingTimeInterval(30 * 60)
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+ ),
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+ BloodGlucose(
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+ sgv: 100,
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+ date: Decimal(baseTime.timeIntervalSince1970 * 1000),
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+ dateString: baseTime
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+ )
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+ ]
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+
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+ let profile = createBasicProfile()
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+ let basalProfile = createBasicBasalProfile()
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+
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+ let result = MealTotal.recentCarbs(
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+ treatments: treatments,
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+ pumpHistory: [],
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+ profile: profile,
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+ basalProfile: basalProfile,
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+ glucose: glucoseData,
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+ time: testTime
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+ )
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+
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+ #expect(result != nil)
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+ #expect(result?.carbs == 20)
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+ #expect(result?.nsCarbs == 20)
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+ #expect(result?.currentDeviation.isWithin(0.1, of: 0.67) == true)
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+ #expect(result?.mealCOB == 14)
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+ }
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+
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+ @Test("should ignore treatments outside the meal window") func ignoreTreatmentsOutsideMealWindow() async {
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+ let baseTime = Date.from(isoString: "2016-06-19T12:00:00-04:00")
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+ let treatmentTime = Date.from(isoString: "2016-06-19T06:00:00-04:00") // 6 hours before
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+ let testTime = Date.from(isoString: "2016-06-19T13:00:00-04:00")
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+
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+ let treatments = [
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+ MealInput(
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+ timestamp: treatmentTime,
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+ carbs: 20,
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+ nsCarbs: 20,
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+ bolus: nil,
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+ journalCarbs: nil,
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+ bwCarbs: nil
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+ )
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+ ]
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+
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+ // Create glucose pattern with slight rise
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+ let glucoseData = [
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+ BloodGlucose(
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+ sgv: 110,
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+ date: Decimal(baseTime.addingTimeInterval(60 * 60).timeIntervalSince1970 * 1000),
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+ dateString: baseTime.addingTimeInterval(60 * 60)
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+ ),
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+ BloodGlucose(
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+ sgv: 105,
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+ date: Decimal(baseTime.addingTimeInterval(30 * 60).timeIntervalSince1970 * 1000),
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+ dateString: baseTime.addingTimeInterval(30 * 60)
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+ ),
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+ BloodGlucose(
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+ sgv: 100,
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+ date: Decimal(baseTime.timeIntervalSince1970 * 1000),
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+ dateString: baseTime
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+ )
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+ ]
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+
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+ let profile = createBasicProfile()
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+ let basalProfile = createBasicBasalProfile()
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+
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+ let result = MealTotal.recentCarbs(
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+ treatments: treatments,
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+ pumpHistory: [],
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+ profile: profile,
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+ basalProfile: basalProfile,
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+ glucose: glucoseData,
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+ time: testTime
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+ )
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+
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+ #expect(result != nil)
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+ #expect(result?.carbs == 0)
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+ #expect(result?.mealCOB == 0)
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+ #expect(result?.currentDeviation.isWithin(0.1, of: 0.67) == true)
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+ }
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+
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+ @Test("should respect maxMealAbsorptionTime from profile") func respectMaxMealAbsorptionTime() async {
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+ let baseTime = Date.from(isoString: "2016-06-19T12:00:00-04:00")
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+ let treatmentTime = Date.from(isoString: "2016-06-19T10:00:00-04:00") // 2 hours before
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+ let testTime = Date.from(isoString: "2016-06-19T13:00:00-04:00")
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+
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+ let treatments = [
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+ MealInput(
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+ timestamp: treatmentTime,
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+ carbs: 20,
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+ nsCarbs: 20,
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+ bolus: nil,
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+ journalCarbs: nil,
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+ bwCarbs: nil
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+ )
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+ ]
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+
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+ // Create glucose pattern with slight rise
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+ let glucoseData = [
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+ BloodGlucose(
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+ sgv: 110,
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+ date: Decimal(baseTime.addingTimeInterval(60 * 60).timeIntervalSince1970 * 1000),
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+ dateString: baseTime.addingTimeInterval(60 * 60)
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+ ),
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+ BloodGlucose(
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+ sgv: 105,
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+ date: Decimal(baseTime.addingTimeInterval(30 * 60).timeIntervalSince1970 * 1000),
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+ dateString: baseTime.addingTimeInterval(30 * 60)
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+ ),
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+ BloodGlucose(
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+ sgv: 100,
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+ date: Decimal(baseTime.timeIntervalSince1970 * 1000),
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+ dateString: baseTime
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+ )
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+ ]
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+
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+ var profile = createBasicProfile()
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+ profile.maxMealAbsorptionTime = 2 // 2 hour window
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+ let basalProfile = createBasicBasalProfile()
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+
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+ let result = MealTotal.recentCarbs(
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+ treatments: treatments,
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+ pumpHistory: [],
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+ profile: profile,
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+ basalProfile: basalProfile,
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+ glucose: glucoseData,
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+ time: testTime
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+ )
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+
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+ #expect(result != nil)
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+ #expect(result?.carbs == 0)
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+ #expect(result?.mealCOB == 0)
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+ }
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+
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+ @Test("should respect maxCOB from profile") func respectMaxCOB() async {
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+ let baseTime = Date.from(isoString: "2016-06-19T12:00:00-04:00")
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+ let testTime = Date.from(isoString: "2016-06-19T13:00:00-04:00")
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+
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+ let treatments = [
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+ MealInput(
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+ timestamp: baseTime,
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+ carbs: 200,
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+ nsCarbs: 200,
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+ bolus: nil,
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+ journalCarbs: nil,
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+ bwCarbs: nil
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+ )
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+ ]
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+
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+ // Create glucose pattern with slight rise
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+ let glucoseData = [
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+ BloodGlucose(
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+ sgv: 110,
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+ date: Decimal(baseTime.addingTimeInterval(60 * 60).timeIntervalSince1970 * 1000),
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+ dateString: baseTime.addingTimeInterval(60 * 60)
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+ ),
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+ BloodGlucose(
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+ sgv: 105,
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+ date: Decimal(baseTime.addingTimeInterval(30 * 60).timeIntervalSince1970 * 1000),
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+ dateString: baseTime.addingTimeInterval(30 * 60)
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+ ),
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+ BloodGlucose(
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+ sgv: 100,
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+ date: Decimal(baseTime.timeIntervalSince1970 * 1000),
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+ dateString: baseTime
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+ )
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+ ]
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+
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+ let profile = createBasicProfile()
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+ let basalProfile = createBasicBasalProfile()
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+
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+ let result = MealTotal.recentCarbs(
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+ treatments: treatments,
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+ pumpHistory: [],
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+ profile: profile,
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+ basalProfile: basalProfile,
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+ glucose: glucoseData,
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+ time: testTime
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+ )
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+
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+ #expect(result != nil)
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+ #expect(result!.mealCOB <= 120)
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+ }
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+}
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Sam King