Premiere commit - Omika
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using Omika.Diagnostics.Models;
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using Omika.Diagnostics.Queries;
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using Omika.Diagnostics.Tests.Fakes;
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namespace Omika.Diagnostics.Tests;
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/// <summary>
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/// T17-E — Statistiques de parc : identité appareil = DeviceKey (jamais LicenseNumber,
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/// réattribuable), dernière observation par DeviceKey, NULL historique, réattribution de
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/// licence, normalisation analytique et pourcentages. Tests sur
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/// <see cref="FakeDiagnosticEventRepository"/> ; la production exécute les mêmes contrats
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/// via le CTE PostgreSQL <c>latest_device</c> (DISTINCT ON / COUNT(DISTINCT device_key)).
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/// </summary>
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public class DiagnosticDeviceFleetTests
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{
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private static readonly DateTimeOffset From = new(2025, 1, 1, 0, 0, 0, TimeSpan.Zero);
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private static readonly DateTimeOffset To = new(2025, 2, 1, 0, 0, 0, TimeSpan.Zero);
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private static DeviceFleetQuery All(int? limit = null) => new()
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{
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FromUtc = From,
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ToUtc = To,
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Limit = limit ?? DiagnosticAggregateDefaults.MaxLimit
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};
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private static DiagnosticEventRecord Ev(
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string deviceKey,
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DateTimeOffset ts,
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string? license = null,
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string? platform = "Android",
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string? os = "Android",
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string? osVersion = "15",
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string? manufacturer = null,
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string? model = null,
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string? appVersion = null,
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int? screenW = null,
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int? screenH = null)
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{
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DiagnosticEventRecord e = DiagnosticTestData.Event(Guid.NewGuid(), timestamp: ts);
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e.DeviceKey = deviceKey;
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e.LicenseNumber = license;
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e.Platform = platform;
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e.OperatingSystem = os;
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e.OperatingSystemVersion = osVersion;
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e.DeviceManufacturer = manufacturer;
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e.DeviceModel = model;
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e.AppVersion = appVersion;
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e.ScreenWidth = screenW;
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e.ScreenHeight = screenH;
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return e;
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}
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// ------------------------------- §61 : 1000 événements = 1 appareil ----
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[Fact]
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public async Task OneDeviceWithManyEvents_CountsAsOneDevice()
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{
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var repo = new FakeDiagnosticEventRepository();
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DiagnosticEventRecord[] events = Enumerable.Range(0, 1000)
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.Select(i => Ev("dev-a", From.AddSeconds(i)))
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.ToArray();
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await repo.InsertBatchAsync(events);
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Assert.Equal(1, await repo.CountActiveDevicesAsync(All()));
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}
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// ------------------------------- §5/§61 : deux appareils distincts ----
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[Fact]
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public async Task TwoDevices_CountAsTwo_RegardlessOfEventVolume()
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{
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var repo = new FakeDiagnosticEventRepository();
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await repo.InsertBatchAsync(new[]
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{
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Ev("dev-a", From.AddMinutes(1)),
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Ev("dev-a", From.AddMinutes(2)),
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Ev("dev-b", From.AddMinutes(3))
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});
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Assert.Equal(2, await repo.CountActiveDevicesAsync(All()));
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}
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// ------------------------------- §62 : DeviceKey NULL → aucun appareil ----
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[Fact]
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public async Task NullDeviceKey_ProducesNoFakeDevice()
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{
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var repo = new FakeDiagnosticEventRepository();
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var events = new List<DiagnosticEventRecord>();
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for (int i = 0; i < 5; i++)
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{
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DiagnosticEventRecord e = DiagnosticTestData.Event(Guid.NewGuid(), timestamp: From.AddMinutes(i));
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e.DeviceKey = null;
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events.Add(e);
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}
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await repo.InsertBatchAsync(events);
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Assert.Equal(0, await repo.CountActiveDevicesAsync(All()));
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DeviceFleetQueryResult devices = await repo.GetDevicesAsync(All());
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Assert.Equal(0, devices.TotalCount);
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}
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// ------------------------------- §63 : dernière observation OS ----
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[Fact]
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public async Task OsVersionDistribution_UsesLastObservation()
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{
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var repo = new FakeDiagnosticEventRepository();
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await repo.InsertBatchAsync(new[]
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{
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Ev("dev-a", From.AddDays(1), osVersion: "15", manufacturer: "Samsung"),
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Ev("dev-a", From.AddDays(20), osVersion: "16", manufacturer: "Samsung")
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});
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IReadOnlyList<DeviceDistribution> result = await repo.CountDevicesGroupedAsync(
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DeviceFleetDimension.OperatingSystemVersion, All());
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DeviceDistribution group = Assert.Single(result);
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Assert.Equal("Android 16", group.Key);
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Assert.Equal(1, group.DeviceCount);
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}
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// ------------------------------- §64 : dernière observation AppVersion ----
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[Fact]
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public async Task AppVersionDistribution_UsesLastObservation()
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{
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var repo = new FakeDiagnosticEventRepository();
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await repo.InsertBatchAsync(new[]
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{
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Ev("dev-a", From.AddDays(1), appVersion: "1.4.0"),
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Ev("dev-a", From.AddDays(20), appVersion: "1.4.1")
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});
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IReadOnlyList<DeviceDistribution> result = await repo.CountDevicesGroupedAsync(
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DeviceFleetDimension.AppVersion, All());
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DeviceDistribution group = Assert.Single(result);
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Assert.Equal("1.4.1", group.Key);
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Assert.Equal(1, group.DeviceCount);
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}
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// ------------------------------- §47 : filtre dernière observation OS ----
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[Fact]
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public async Task LastObservationFilter_Android15_ExcludesDeviceNowOnAndroid16()
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{
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var repo = new FakeDiagnosticEventRepository();
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await repo.InsertBatchAsync(new[]
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{
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Ev("dev-a", From.AddDays(1), osVersion: "15"),
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Ev("dev-a", From.AddDays(20), osVersion: "16")
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});
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var filter15 = new DeviceFleetQuery { FromUtc = From, ToUtc = To, OperatingSystemVersion = "15", Limit = DiagnosticAggregateDefaults.MaxLimit };
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Assert.Equal(0, await repo.CountActiveDevicesAsync(filter15));
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var filter16 = new DeviceFleetQuery { FromUtc = From, ToUtc = To, OperatingSystemVersion = "16", Limit = DiagnosticAggregateDefaults.MaxLimit };
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Assert.Equal(1, await repo.CountActiveDevicesAsync(filter16));
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}
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// ------------------------------- §65/§66 : réattribution = 2 appareils ----
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[Fact]
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public async Task LicenseReassignment_CountsTwoDistinctDevices()
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{
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var repo = new FakeDiagnosticEventRepository();
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await repo.InsertBatchAsync(new[]
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{
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Ev("dev-a", From.AddDays(1), license: "LIC-001", manufacturer: "Samsung", model: "SM-DEMO", os: "Android", osVersion: "15"),
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Ev("dev-b", From.AddDays(20), license: "LIC-001", manufacturer: "Apple", model: "iPhoneDemo", os: "iOS", osVersion: "18")
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});
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Assert.Equal(2, await repo.CountActiveDevicesAsync(All()));
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DeviceFleetQueryResult devices = await repo.GetDevicesAsync(All());
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Assert.Equal(2, devices.TotalCount);
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Assert.Contains(devices.Items, d => d.DeviceKey == "dev-a");
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Assert.Contains(devices.Items, d => d.DeviceKey == "dev-b");
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}
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// ------------------------------- §66 : jamais de fusion par licence ----
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[Fact]
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public async Task SameLicense_DifferentDeviceKeys_RemainDifferentDevices()
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{
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var repo = new FakeDiagnosticEventRepository();
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await repo.InsertBatchAsync(new[]
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{
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Ev("dev-a", From.AddDays(1), license: "LIC-001"),
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Ev("dev-a", From.AddDays(2), license: "LIC-001"),
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Ev("dev-b", From.AddDays(3), license: "LIC-001")
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});
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// Sans filtre : 2 appareils. Avec filtre licence : TOUJOURS 2 appareils distincts,
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// jamais fusionnés en 1 simplement parce que la licence est identique.
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Assert.Equal(2, await repo.CountActiveDevicesAsync(All()));
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Assert.Equal(2, await repo.CountActiveDevicesAsync(
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new DeviceFleetQuery { FromUtc = From, ToUtc = To, LicenseNumber = "LIC-001", Limit = DiagnosticAggregateDefaults.MaxLimit }));
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}
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// ------------------------------- §67 : filtre licence = les deux appareils ----
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[Fact]
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public async Task LicenseFilter_ReturnsAllDevicesThatUsedLicense()
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{
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var repo = new FakeDiagnosticEventRepository();
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await repo.InsertBatchAsync(new[]
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{
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Ev("dev-a", From.AddDays(1), license: "LIC-001"),
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Ev("dev-b", From.AddDays(20), license: "LIC-001"),
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Ev("dev-c", From.AddDays(5), license: "LIC-002")
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});
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var query = new DeviceFleetQuery { FromUtc = From, ToUtc = To, LicenseNumber = "LIC-001", Limit = DiagnosticAggregateDefaults.MaxLimit };
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DeviceFleetQueryResult devices = await repo.GetDevicesAsync(query);
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Assert.Equal(2, devices.TotalCount);
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Assert.All(devices.Items, d => Assert.Equal("LIC-001", d.LicenseNumber));
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}
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// ------------------------------- §16 : appareils distincts par licence ----
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[Fact]
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public async Task DevicesByLicense_CountsDistinctDevicesPerLicense()
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{
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var repo = new FakeDiagnosticEventRepository();
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await repo.InsertBatchAsync(new[]
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{
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Ev("dev-a", From.AddDays(1), license: "LIC-001"),
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Ev("dev-a", From.AddDays(2), license: "LIC-001"),
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Ev("dev-b", From.AddDays(3), license: "LIC-001"),
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Ev("dev-c", From.AddDays(4), license: "LIC-002")
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});
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IReadOnlyList<DeviceDistribution> result = await repo.CountDevicesByLicenseAsync(All());
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DeviceDistribution lic001 = Assert.Single(result, r => r.Key == "LIC-001");
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Assert.Equal(2, lic001.DeviceCount); // dev-a + dev-b, jamais 3 événements
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DeviceDistribution lic002 = Assert.Single(result, r => r.Key == "LIC-002");
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Assert.Equal(1, lic002.DeviceCount);
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}
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// ------------------------------- §69 : pourcentages ----
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[Fact]
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public void Percentage_ComputesShareWithoutDivisionByZero()
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{
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Assert.Equal(80.0, DeviceFleetStatistics.Percentage(8, 10));
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Assert.Equal(20.0, DeviceFleetStatistics.Percentage(2, 10));
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Assert.Null(DeviceFleetStatistics.Percentage(5, 0));
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Assert.Null(DeviceFleetStatistics.Percentage(0, 0));
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}
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// ------------------------------- §70 : normalisation ----
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[Fact]
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public async Task Normalization_GroupsCaseVariants()
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{
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var repo = new FakeDiagnosticEventRepository();
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await repo.InsertBatchAsync(new[]
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{
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Ev("d1", From.AddDays(1), platform: "Android", manufacturer: "Samsung"),
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Ev("d2", From.AddDays(2), platform: "ANDROID", manufacturer: "SAMSUNG"),
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Ev("d3", From.AddDays(3), platform: "iOS", manufacturer: "Apple")
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});
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IReadOnlyList<DeviceDistribution> platforms = await repo.CountDevicesGroupedAsync(
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DeviceFleetDimension.Platform, All());
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DeviceDistribution android = Assert.Single(platforms, p => p.Key == "Android");
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Assert.Equal(2, android.DeviceCount);
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IReadOnlyList<DeviceDistribution> manufacturers = await repo.CountDevicesGroupedAsync(
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DeviceFleetDimension.Manufacturer, All());
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DeviceDistribution samsung = Assert.Single(manufacturers, m => m.Key == "Samsung");
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Assert.Equal(2, samsung.DeviceCount);
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}
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[Theory]
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[InlineData("Android", "Android")]
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[InlineData("ANDROID", "Android")]
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[InlineData("android", "Android")]
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[InlineData("iOS", "iOS")]
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[InlineData("IOS", "iOS")]
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[InlineData("macOS", "macOS")]
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[InlineData("MACOS", "macOS")]
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[InlineData(null, null)]
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[InlineData(" ", null)]
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public void PlatformHelper_NormalizesDeterministically(string? input, string? expected)
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{
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Assert.Equal(expected, DeviceFleetNormalization.Platform(input));
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}
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[Theory]
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[InlineData("Samsung", "Samsung")]
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[InlineData("SAMSUNG", "Samsung")]
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[InlineData("samsung", "Samsung")]
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[InlineData("Xiaomi", "Xiaomi")]
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[InlineData(null, null)]
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public void ManufacturerHelper_NormalizesDeterministically(string? input, string? expected)
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{
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Assert.Equal(expected, DeviceFleetNormalization.Manufacturer(input));
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}
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[Theory]
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[InlineData("SM-S928B", "SM-S928B")]
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[InlineData("iPhone17,2", "iPhone17,2")]
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[InlineData("23113RKC6G", "23113RKC6G")]
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[InlineData(" sm-s928b ", "sm-s928b")] // TRIM seulement, casse conservée (§44)
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[InlineData(null, null)]
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public void DeviceModelHelper_TrimsAndPreservesCase(string? input, string? expected)
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{
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Assert.Equal(expected, DeviceFleetNormalization.DeviceModel(input));
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}
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// ------------------------------- §71 : anciennes données NULL ----
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[Fact]
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public async Task OldData_NullDimensions_NoCrashNoFakeDevice()
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{
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var repo = new FakeDiagnosticEventRepository();
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DiagnosticEventRecord legacy = DiagnosticTestData.Event(Guid.NewGuid(), timestamp: From.AddDays(1));
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legacy.DeviceKey = "legacy-device";
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legacy.DeviceManufacturer = null;
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legacy.OperatingSystem = null;
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legacy.OperatingSystemVersion = null;
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legacy.AppVersion = null;
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legacy.ScreenWidth = null;
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legacy.ScreenHeight = null;
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await repo.InsertBatchAsync(new[] { legacy });
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Assert.Equal(1, await repo.CountActiveDevicesAsync(All())); // appareil identifiable
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IReadOnlyList<DeviceDistribution> manufacturers = await repo.CountDevicesGroupedAsync(
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DeviceFleetDimension.Manufacturer, All());
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Assert.Empty(manufacturers); // NULL exclu, pas de faux « Inconnu »
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IReadOnlyList<DeviceDistribution> resolutions = await repo.CountDevicesGroupedAsync(
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DeviceFleetDimension.Resolution, All());
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Assert.Empty(resolutions);
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}
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// ------------------------------- §55/§56 : pagination + tri LastSeen DESC ----
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[Fact]
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public async Task GetDevices_PaginatesAndSortsByLastSeenDescending()
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{
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var repo = new FakeDiagnosticEventRepository();
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await repo.InsertBatchAsync(new[]
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{
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Ev("d1", From.AddDays(1)),
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Ev("d2", From.AddDays(3)),
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Ev("d3", From.AddDays(2))
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});
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var query = new DeviceFleetQuery { FromUtc = From, ToUtc = To, Page = 1, PageSize = 2, Limit = DiagnosticAggregateDefaults.MaxLimit };
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DeviceFleetQueryResult page = await repo.GetDevicesAsync(query);
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Assert.Equal(3, page.TotalCount);
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Assert.Equal(2, page.Items.Count);
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Assert.Equal(2, page.TotalPages);
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Assert.Equal("d2", page.Items[0].DeviceKey); // dernière activité d'abord
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Assert.Equal("d3", page.Items[1].DeviceKey);
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}
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}
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