Files
ScadaBridge/tests/ZB.MOM.WW.ScadaBridge.CentralUI.Tests/Pages/Design/TransportImportPageTests.cs
T

630 lines
32 KiB
C#

using System.Security.Claims;
using System.Security.Cryptography;
using Bunit;
using Microsoft.AspNetCore.Authorization;
using Microsoft.AspNetCore.Components.Authorization;
using Microsoft.EntityFrameworkCore;
using Microsoft.EntityFrameworkCore.Diagnostics;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Options;
using NSubstitute;
using NSubstitute.ExceptionExtensions;
using ZB.MOM.WW.ScadaBridge.Commons.Entities.Sites;
using ZB.MOM.WW.ScadaBridge.Commons.Interfaces.Repositories;
using ZB.MOM.WW.ScadaBridge.Commons.Interfaces.Services;
using ZB.MOM.WW.ScadaBridge.Commons.Interfaces.Transport;
using ZB.MOM.WW.ScadaBridge.Commons.Types.Transport;
using ZB.MOM.WW.ScadaBridge.ConfigurationDatabase;
using ZB.MOM.WW.ScadaBridge.Security;
using ZB.MOM.WW.ScadaBridge.Transport;
using TransportImportPage = ZB.MOM.WW.ScadaBridge.CentralUI.Components.Pages.Design.TransportImport;
namespace ZB.MOM.WW.ScadaBridge.CentralUI.Tests.Pages.Design;
/// <summary>
/// bUnit + logic tests for the TransportImport wizard (Component #24, Task T22).
///
/// <para>
/// The wizard has five steps (Upload / Passphrase / Diff / Confirm / Result).
/// Selecting a file via <c>InputFile</c> is hard to drive cleanly from bUnit
/// (JS interop + DotNetStreamReference), so the state-machine tests reach into
/// the page instance via <c>cut.Instance</c> and the <c>InternalsVisibleTo</c>
/// declaration on <c>ZB.MOM.WW.ScadaBridge.CentralUI.csproj</c>. The <c>BundleImporter</c>
/// mock controls every load/preview/apply contract so each step's behaviour can
/// be exercised in isolation. The full happy-path round-trip is covered by the
/// integration tests in <c>ZB.MOM.WW.ScadaBridge.Transport.IntegrationTests</c>.
/// </para>
/// </summary>
public class TransportImportPageTests : BunitContext
{
private readonly IBundleImporter _importer = Substitute.For<IBundleImporter>();
private readonly IAuditService _auditService = Substitute.For<IAuditService>();
// M8 E2: the Map step injects ISiteRepository to populate target-site +
// target-connection dropdowns. Register a substitute so every test (not just
// the Map tests) can render the wizard without a missing-service failure.
private readonly ISiteRepository _siteRepo = Substitute.For<ISiteRepository>();
public TransportImportPageTests()
{
JSInterop.Mode = JSRuntimeMode.Loose;
Services.AddSingleton(_importer);
Services.AddSingleton(_auditService);
_siteRepo.GetAllSitesAsync(Arg.Any<CancellationToken>())
.Returns(Array.Empty<Site>());
_siteRepo.GetDataConnectionsBySiteIdAsync(Arg.Any<int>(), Arg.Any<CancellationToken>())
.Returns(Array.Empty<DataConnection>());
Services.AddSingleton(_siteRepo);
Services.AddSingleton<IOptions<TransportOptions>>(
Microsoft.Extensions.Options.Options.Create(new TransportOptions
{
MaxBundleSizeMb = 10,
MaxUnlockAttemptsPerSession = 3,
}));
// Provide a SQLite in-memory ScadaBridgeDbContext so the page's
// DbContext.SaveChangesAsync() calls in the audit path succeed.
var dbOptions = new DbContextOptionsBuilder<ScadaBridgeDbContext>()
.UseSqlite("DataSource=:memory:")
.ConfigureWarnings(w => w.Ignore(RelationalEventId.AmbientTransactionWarning))
.Options;
var dbContext = new ScadaBridgeDbContext(dbOptions);
dbContext.Database.OpenConnection();
dbContext.Database.EnsureCreated();
Services.AddSingleton(dbContext);
var principal = BuildPrincipal("alice", "Administrator");
Services.AddSingleton<AuthenticationStateProvider>(new TestAuthStateProvider(principal));
Services.AddAuthorizationCore();
}
private static ClaimsPrincipal BuildPrincipal(string username, params string[] roles)
{
var claims = new List<Claim> { new(JwtTokenService.UsernameClaimType, username) };
claims.AddRange(roles.Select(r => new Claim(JwtTokenService.RoleClaimType, r)));
return new ClaimsPrincipal(new ClaimsIdentity(claims, "TestAuth"));
}
private static BundleSession BuildEncryptedSession(string sourceEnv = "prod-cluster") =>
new()
{
SessionId = Guid.NewGuid(),
Manifest = new BundleManifest(
BundleFormatVersion: 1,
SchemaVersion: "1.0",
CreatedAtUtc: DateTimeOffset.UtcNow,
SourceEnvironment: sourceEnv,
ExportedBy: "bob",
ScadaBridgeVersion: "1.0.0",
ContentHash: "sha256:0000",
Encryption: new EncryptionMetadata(
Algorithm: "AES-256-GCM",
Kdf: "PBKDF2-SHA256",
Iterations: 600_000,
SaltB64: "abc",
IvB64: "def"),
Summary: new BundleSummary(0, 0, 0, 0, 0, 0, 0, 0),
Contents: Array.Empty<ManifestContentEntry>()),
DecryptedContent = Array.Empty<byte>(),
ExpiresAt = DateTimeOffset.UtcNow.AddMinutes(30),
};
// ─────────────────────────────────────────────────────────────────────
// Test 1: Step 1 renders the InputFile upload control.
// ─────────────────────────────────────────────────────────────────────
[Fact]
public void Renders_step1_upload_input()
{
var cut = Render<TransportImportPage>();
// Bootstrap classes are applied by InputFile via the CSS class attribute.
Assert.NotNull(cut.Find("input[type='file']"));
// The Bootstrap step indicator should highlight Step 1.
Assert.Contains("Upload", cut.Markup);
}
// ─────────────────────────────────────────────────────────────────────
// Test 2: Wrong passphrase increments the failure counter without
// advancing past Step 2.
// ─────────────────────────────────────────────────────────────────────
[Fact]
public async Task Decryption_failure_increments_attempt_counter()
{
// Set up the importer to throw CryptographicException for wrong passphrases.
_importer.LoadAsync(Arg.Any<Stream>(), Arg.Any<string>(), Arg.Any<CancellationToken>())
.Throws(new CryptographicException("authentication tag mismatch"));
var cut = Render<TransportImportPage>();
await cut.InvokeAsync(() =>
{
// Seed the wizard at the passphrase step with cached bytes.
SeedAtPassphraseStep(cut.Instance, new byte[] { 0x01, 0x02 });
SetField(cut.Instance, "_passphrase", "wrong-pass");
});
// Drive a passphrase submission.
await cut.InvokeAsync(async () =>
{
await InvokeAsyncMethod(cut.Instance, "SubmitPassphraseAsync");
});
Assert.Equal(1, GetField<int>(cut.Instance, "_failedUnlockAttempts"));
Assert.Equal(
TransportImportPage.ImportWizardStep.Passphrase,
GetField<TransportImportPage.ImportWizardStep>(cut.Instance, "_step"));
}
// ─────────────────────────────────────────────────────────────────────
// Test 3: After MaxUnlockAttemptsPerSession failures the wizard returns
// to Step 1 with an explanatory error.
// ─────────────────────────────────────────────────────────────────────
[Fact]
public async Task Three_failed_unlocks_force_reupload()
{
_importer.LoadAsync(Arg.Any<Stream>(), Arg.Any<string>(), Arg.Any<CancellationToken>())
.Throws(new CryptographicException("authentication tag mismatch"));
var cut = Render<TransportImportPage>();
await cut.InvokeAsync(() =>
{
SeedAtPassphraseStep(cut.Instance, new byte[] { 0x01, 0x02 });
});
for (var i = 0; i < 3; i++)
{
await cut.InvokeAsync(async () =>
{
SetField(cut.Instance, "_passphrase", $"wrong-{i}");
await InvokeAsyncMethod(cut.Instance, "SubmitPassphraseAsync");
});
}
Assert.Equal(
TransportImportPage.ImportWizardStep.Upload,
GetField<TransportImportPage.ImportWizardStep>(cut.Instance, "_step"));
var errorMessage = GetField<string?>(cut.Instance, "_errorMessage");
Assert.NotNull(errorMessage);
Assert.Contains("Too many failed unlock attempts", errorMessage);
}
// ─────────────────────────────────────────────────────────────────────
// Test 4: Confirm step requires an exact match (case-sensitive) on the
// source environment name before Apply is enabled.
// ─────────────────────────────────────────────────────────────────────
[Fact]
public async Task Confirm_step_requires_exact_environment_name_match()
{
var session = BuildEncryptedSession(sourceEnv: "prod-cluster");
_importer.PreviewAsync(session.SessionId, Arg.Any<CancellationToken>())
.Returns(new ImportPreview(session.SessionId, new List<ImportPreviewItem>
{
new("Template", "Pump", null, 1, ConflictKind.New, null, null),
}));
var cut = Render<TransportImportPage>();
await cut.InvokeAsync(() =>
{
SetField(cut.Instance, "_session", session);
SetField(cut.Instance, "_preview", new ImportPreview(session.SessionId, new List<ImportPreviewItem>
{
new("Template", "Pump", null, 1, ConflictKind.New, null, null),
}));
SetField(cut.Instance, "_resolutions", new Dictionary<(string EntityType, string Name), ImportResolution>
{
[("Template", "Pump")] = new("Template", "Pump", ResolutionAction.Add, null),
});
SetField(cut.Instance, "_step", TransportImportPage.ImportWizardStep.Confirm);
});
// Wrong text → Apply button is disabled.
await cut.InvokeAsync(() => SetField(cut.Instance, "_confirmEnvironmentText", "wrong"));
cut.Render();
var applyBtn = cut.FindAll("button").First(b => b.TextContent.Trim().StartsWith("Apply Import"));
Assert.True(applyBtn.HasAttribute("disabled"));
// Case mismatch → still disabled.
await cut.InvokeAsync(() => SetField(cut.Instance, "_confirmEnvironmentText", "PROD-CLUSTER"));
cut.Render();
applyBtn = cut.FindAll("button").First(b => b.TextContent.Trim().StartsWith("Apply Import"));
Assert.True(applyBtn.HasAttribute("disabled"));
// Exact match → enabled.
await cut.InvokeAsync(() => SetField(cut.Instance, "_confirmEnvironmentText", "prod-cluster"));
cut.Render();
applyBtn = cut.FindAll("button").First(b => b.TextContent.Trim().StartsWith("Apply Import"));
Assert.False(applyBtn.HasAttribute("disabled"));
}
// ─────────────────────────────────────────────────────────────────────
// Test 5: ApplyAsync is invoked with the chosen resolutions and the
// authenticated user identity.
// ─────────────────────────────────────────────────────────────────────
[Fact]
public async Task Apply_step_invokes_BundleImporter_ApplyAsync_with_resolutions()
{
var session = BuildEncryptedSession(sourceEnv: "prod-cluster");
var resolutions = new Dictionary<(string EntityType, string Name), ImportResolution>
{
[("Template", "Pump")] = new("Template", "Pump", ResolutionAction.Overwrite, null),
};
var expectedResult = new ImportResult(
BundleImportId: Guid.NewGuid(),
Added: 0,
Overwritten: 1,
Skipped: 0,
Renamed: 0,
StaleInstanceIds: Array.Empty<int>(),
AuditEventCorrelation: Guid.NewGuid().ToString());
_importer.ApplyAsync(
session.SessionId,
Arg.Any<IReadOnlyList<ImportResolution>>(),
"alice",
Arg.Any<CancellationToken>(),
Arg.Any<BundleNameMap>())
.Returns(expectedResult);
var cut = Render<TransportImportPage>();
await cut.InvokeAsync(() =>
{
SetField(cut.Instance, "_session", session);
SetField(cut.Instance, "_preview", new ImportPreview(session.SessionId, new List<ImportPreviewItem>
{
new("Template", "Pump", 1, 2, ConflictKind.Modified, null, null),
}));
SetField(cut.Instance, "_resolutions", resolutions);
SetField(cut.Instance, "_step", TransportImportPage.ImportWizardStep.Confirm);
SetField(cut.Instance, "_confirmEnvironmentText", "prod-cluster");
});
await cut.InvokeAsync(async () =>
{
await InvokeAsyncMethod(cut.Instance, "ApplyAsync");
});
await _importer.Received(1).ApplyAsync(
session.SessionId,
Arg.Is<IReadOnlyList<ImportResolution>>(rs =>
rs.Any(r => r.EntityType == "Template" && r.Name == "Pump"
&& r.Action == ResolutionAction.Overwrite)),
"alice",
Arg.Any<CancellationToken>(),
Arg.Any<BundleNameMap>());
Assert.Equal(
TransportImportPage.ImportWizardStep.Result,
GetField<TransportImportPage.ImportWizardStep>(cut.Instance, "_step"));
Assert.Equal(expectedResult, GetField<ImportResult?>(cut.Instance, "_result"));
}
// ─────────────────────────────────────────────────────────────────────
// Test 6: A user without the Admin role fails the RequireAdmin policy.
// The router enforces [Authorize(Policy=...)] at request time — bUnit
// doesn't model routing, so we verify the policy itself denies the
// principal.
// ─────────────────────────────────────────────────────────────────────
[Fact]
public async Task Page_returns_unauthorized_for_user_without_Admin_role()
{
var services = new ServiceCollection();
services.AddLogging();
services.AddScadaBridgeAuthorization();
using var provider = services.BuildServiceProvider();
var authService = provider.GetRequiredService<IAuthorizationService>();
// Design-only user — has a role but it isn't Admin.
var principal = BuildPrincipal("bob", "Designer");
var result = await authService.AuthorizeAsync(
principal, null, AuthorizationPolicies.RequireAdmin);
Assert.False(result.Succeeded);
}
// ─────────────────────────────────────────────────────────────────────
// Test 7 (helper coverage): BuildDefaultResolutions maps each kind to the
// expected default ResolutionAction.
// ─────────────────────────────────────────────────────────────────────
[Fact]
public void BuildDefaultResolutions_maps_kinds_to_actions()
{
var preview = new ImportPreview(Guid.NewGuid(), new List<ImportPreviewItem>
{
new("Template", "A", 1, 1, ConflictKind.Identical, null, null),
new("Template", "B", null, 1, ConflictKind.New, null, null),
new("Template", "C", 1, 2, ConflictKind.Modified, null, null),
new("Reference", "D", null, null, ConflictKind.Blocker, null, "missing dep"),
});
var map = TransportImportPage.BuildDefaultResolutions(preview);
Assert.Equal(ResolutionAction.Skip, map[("Template", "A")].Action);
Assert.Equal(ResolutionAction.Add, map[("Template", "B")].Action);
Assert.Equal(ResolutionAction.Overwrite, map[("Template", "C")].Action);
Assert.Equal(ResolutionAction.Skip, map[("Reference", "D")].Action);
}
// ─────────────────────────────────────────────────────────────────────
// Test 8 (M8 E2): the Map sub-section renders one row per required site /
// connection mapping with the auto-match defaults pre-selected, and the
// section is hidden entirely when the preview carries no required mappings.
// ─────────────────────────────────────────────────────────────────────
[Fact]
public async Task Map_section_renders_required_rows_with_automatch_defaults()
{
// Target environment has one site (site-b) with one connection (opc-main),
// which the bundle's source site "site-a" / connection "opc-a" auto-match to.
_siteRepo.GetAllSitesAsync(Arg.Any<CancellationToken>())
.Returns(new List<Site> { new("Site B", "site-b") { Id = 7 } });
_siteRepo.GetDataConnectionsBySiteIdAsync(7, Arg.Any<CancellationToken>())
.Returns(new List<DataConnection> { new("opc-main", "OpcUa", 7) { Id = 11 } });
var session = BuildEncryptedSession(sourceEnv: "prod-cluster");
var preview = new ImportPreview(
session.SessionId,
new List<ImportPreviewItem>(),
new List<RequiredSiteMapping> { new("site-a", "Site A", "site-b") },
new List<RequiredConnectionMapping> { new("site-a", "opc-a", "opc-main") });
_importer.PreviewAsync(session.SessionId, Arg.Any<CancellationToken>()).Returns(preview);
var cut = Render<TransportImportPage>();
await cut.InvokeAsync(() => SetField(cut.Instance, "_session", session));
await cut.InvokeAsync(async () =>
await InvokeAsyncMethod(cut.Instance, "LoadPreviewAndAdvanceAsync"));
cut.Render();
// Section present with one site row and one connection row.
Assert.NotNull(cut.Find("[data-testid='map-section']"));
Assert.Single(cut.FindAll("[data-testid='map-site-row']"));
Assert.Single(cut.FindAll("[data-testid='map-conn-row']"));
// Auto-match defaults: site-a → site-b, opc-a → opc-main.
var siteSelect = cut.Find("[data-testid='map-site-select-site-a']");
var selectedSiteOpt = siteSelect.QuerySelectorAll("option").Single(o => o.HasAttribute("selected"));
Assert.Equal("site-b", selectedSiteOpt.GetAttribute("value"));
var connSelect = cut.Find("[data-testid='map-conn-select-site-a-opc-a']");
var selectedConnOpt = connSelect.QuerySelectorAll("option").Single(o => o.HasAttribute("selected"));
Assert.Equal("opc-main", selectedConnOpt.GetAttribute("value"));
}
[Fact]
public async Task Map_section_hidden_when_no_required_mappings()
{
var session = BuildEncryptedSession(sourceEnv: "prod-cluster");
var preview = new ImportPreview(session.SessionId, new List<ImportPreviewItem>
{
new("Template", "Pump", null, 1, ConflictKind.New, null, null),
});
_importer.PreviewAsync(session.SessionId, Arg.Any<CancellationToken>()).Returns(preview);
var cut = Render<TransportImportPage>();
await cut.InvokeAsync(() => SetField(cut.Instance, "_session", session));
await cut.InvokeAsync(async () =>
await InvokeAsyncMethod(cut.Instance, "LoadPreviewAndAdvanceAsync"));
cut.Render();
Assert.Empty(cut.FindAll("[data-testid='map-section']"));
}
// ─────────────────────────────────────────────────────────────────────
// Test 9 (M8 E2): the operator's Map choices fold into the BundleNameMap
// passed to ApplyAsync — a chosen target → MapToExisting, "Create new" →
// CreateNew. Captured via the substituted IBundleImporter.
// ─────────────────────────────────────────────────────────────────────
[Fact]
public async Task Apply_passes_BundleNameMap_built_from_map_choices()
{
_siteRepo.GetAllSitesAsync(Arg.Any<CancellationToken>())
.Returns(new List<Site> { new("Site B", "site-b") { Id = 7 } });
_siteRepo.GetDataConnectionsBySiteIdAsync(7, Arg.Any<CancellationToken>())
.Returns(new List<DataConnection> { new("opc-main", "OpcUa", 7) { Id = 11 } });
var session = BuildEncryptedSession(sourceEnv: "prod-cluster");
var preview = new ImportPreview(
session.SessionId,
new List<ImportPreviewItem>(),
// site-a auto-matches site-b; site-c has no auto-match (→ Create new default).
new List<RequiredSiteMapping>
{
new("site-a", "Site A", "site-b"),
new("site-c", "Site C", null),
},
// opc-a (under site-a) auto-matches opc-main.
new List<RequiredConnectionMapping> { new("site-a", "opc-a", "opc-main") });
_importer.PreviewAsync(session.SessionId, Arg.Any<CancellationToken>()).Returns(preview);
var expectedResult = new ImportResult(
Guid.NewGuid(), 0, 0, 0, 0, Array.Empty<int>(), Guid.NewGuid().ToString());
_importer.ApplyAsync(
session.SessionId,
Arg.Any<IReadOnlyList<ImportResolution>>(),
"alice",
Arg.Any<CancellationToken>(),
Arg.Any<BundleNameMap>())
.Returns(expectedResult);
var cut = Render<TransportImportPage>();
await cut.InvokeAsync(() => SetField(cut.Instance, "_session", session));
await cut.InvokeAsync(async () =>
await InvokeAsyncMethod(cut.Instance, "LoadPreviewAndAdvanceAsync"));
await cut.InvokeAsync(() => SetField(cut.Instance, "_confirmEnvironmentText", "prod-cluster"));
await cut.InvokeAsync(async () => await InvokeAsyncMethod(cut.Instance, "ApplyAsync"));
await _importer.Received(1).ApplyAsync(
session.SessionId,
Arg.Any<IReadOnlyList<ImportResolution>>(),
"alice",
Arg.Any<CancellationToken>(),
Arg.Is<BundleNameMap>(m =>
m.Sites.Count == 2
&& m.Sites.Any(s => s.SourceSiteIdentifier == "site-a"
&& s.Action == MappingAction.MapToExisting && s.TargetSiteIdentifier == "site-b")
&& m.Sites.Any(s => s.SourceSiteIdentifier == "site-c"
&& s.Action == MappingAction.CreateNew && s.TargetSiteIdentifier == null)
&& m.Connections.Count == 1
&& m.Connections.Any(c => c.SourceSiteIdentifier == "site-a"
&& c.SourceConnectionName == "opc-a"
&& c.Action == MappingAction.MapToExisting && c.TargetConnectionName == "opc-main")));
}
// ─────────────────────────────────────────────────────────────────────
// Test 10 (M8 E2): a Modified row whose FieldDiffJson carries a code
// lineDiff renders +/- lines via LineDiffView.
// ─────────────────────────────────────────────────────────────────────
[Fact]
public async Task Modified_row_with_code_lineDiff_renders_add_and_remove_lines()
{
const string fieldDiffJson = """
{
"changes": [
{
"field": "Code",
"oldValue": "a\nb\nc",
"newValue": "a\nB\nc",
"lineDiff": {
"hunks": [
{ "op": "context", "text": "a", "oldLineNo": 1, "newLineNo": 1 },
{ "op": "remove", "text": "b", "oldLineNo": 2 },
{ "op": "add", "text": "B", "newLineNo": 2 },
{ "op": "context", "text": "c", "oldLineNo": 3, "newLineNo": 3 }
],
"truncated": false,
"addedCount": 1,
"removedCount": 1
}
}
]
}
""";
var session = BuildEncryptedSession(sourceEnv: "prod-cluster");
var preview = new ImportPreview(session.SessionId, new List<ImportPreviewItem>
{
new("Template", "Pump", 1, 2, ConflictKind.Modified, fieldDiffJson, null),
});
_importer.PreviewAsync(session.SessionId, Arg.Any<CancellationToken>()).Returns(preview);
var cut = Render<TransportImportPage>();
await cut.InvokeAsync(() => SetField(cut.Instance, "_session", session));
await cut.InvokeAsync(async () =>
await InvokeAsyncMethod(cut.Instance, "LoadPreviewAndAdvanceAsync"));
cut.Render();
// The code line-diff block is present and shows one add + one remove line.
Assert.NotNull(cut.Find("[data-testid='code-line-diff']"));
Assert.NotNull(cut.Find("[data-testid='line-diff']"));
Assert.Single(cut.FindAll("[data-testid='line-diff-add']"));
Assert.Single(cut.FindAll("[data-testid='line-diff-remove']"));
// The raw JSON <pre> fallback is NOT used for code-field diffs.
Assert.DoesNotContain("\"lineDiff\"", cut.Find("[data-testid='code-line-diff']").InnerHtml);
// No truncation marker for a complete diff.
Assert.Empty(cut.FindAll("[data-testid='line-diff-truncated']"));
}
// ─────────────────────────────────────────────────────────────────────
// Test 11 (M8 E2): truncation marker shows when the lineDiff is truncated.
// ─────────────────────────────────────────────────────────────────────
[Fact]
public async Task Modified_row_with_truncated_lineDiff_shows_truncation_marker()
{
const string fieldDiffJson = """
{
"changes": [
{
"field": "Code",
"oldValue": "x",
"newValue": "y",
"lineDiff": {
"hunks": [
{ "op": "remove", "text": "x", "oldLineNo": 1 },
{ "op": "add", "text": "y", "newLineNo": 1 }
],
"truncated": true,
"addedCount": 12,
"removedCount": 8
}
}
]
}
""";
var session = BuildEncryptedSession(sourceEnv: "prod-cluster");
var preview = new ImportPreview(session.SessionId, new List<ImportPreviewItem>
{
new("Template", "Pump", 1, 2, ConflictKind.Modified, fieldDiffJson, null),
});
_importer.PreviewAsync(session.SessionId, Arg.Any<CancellationToken>()).Returns(preview);
var cut = Render<TransportImportPage>();
await cut.InvokeAsync(() => SetField(cut.Instance, "_session", session));
await cut.InvokeAsync(async () =>
await InvokeAsyncMethod(cut.Instance, "LoadPreviewAndAdvanceAsync"));
cut.Render();
var marker = cut.Find("[data-testid='line-diff-truncated']");
Assert.Contains("truncated", marker.TextContent);
Assert.Contains("+12", marker.TextContent);
Assert.Contains("-8", marker.TextContent);
}
// ─────────────────────────────────────────────────────────────────────
// Reflection helpers — the wizard's per-instance state is private (the
// razor partial pattern). We poke at it via reflection rather than
// widening the surface of the production class with test-only accessors.
// ─────────────────────────────────────────────────────────────────────
private static void SetField(object obj, string name, object? value)
{
var field = obj.GetType().GetField(
name,
System.Reflection.BindingFlags.Instance
| System.Reflection.BindingFlags.NonPublic
| System.Reflection.BindingFlags.Public)
?? throw new InvalidOperationException($"Field '{name}' not found on {obj.GetType()}.");
field.SetValue(obj, value);
}
private static T GetField<T>(object obj, string name)
{
var field = obj.GetType().GetField(
name,
System.Reflection.BindingFlags.Instance
| System.Reflection.BindingFlags.NonPublic
| System.Reflection.BindingFlags.Public)
?? throw new InvalidOperationException($"Field '{name}' not found on {obj.GetType()}.");
return (T)field.GetValue(obj)!;
}
private static async Task InvokeAsyncMethod(object obj, string name)
{
var method = obj.GetType().GetMethod(
name,
System.Reflection.BindingFlags.Instance
| System.Reflection.BindingFlags.NonPublic
| System.Reflection.BindingFlags.Public)
?? throw new InvalidOperationException($"Method '{name}' not found on {obj.GetType()}.");
var task = (Task)method.Invoke(obj, Array.Empty<object?>())!;
await task;
}
/// <summary>
/// Seeds the wizard at Step 2 (Passphrase) with a staged bundle file — the
/// shape after an encrypted-bundle upload completed Step 1's peek and
/// surfaced an ArgumentException ("passphrase required"). CentralUI-031:
/// the wizard now stages the upload to a temp file and only retains the
/// path on the component, so the test helper writes the bytes to a per-
/// test temp file and sets the path field instead of the byte[] field.
/// </summary>
private static void SeedAtPassphraseStep(TransportImportPage instance, byte[] bytes)
{
var dir = Path.Combine(Path.GetTempPath(), "scadabridge-transport-staging");
Directory.CreateDirectory(dir);
var path = Path.Combine(dir, $"test-{Guid.NewGuid():N}.scadabundle");
File.WriteAllBytes(path, bytes);
SetField(instance, "_bundleTempPath", path);
SetField(instance, "_session", null);
SetField(instance, "_step", TransportImportPage.ImportWizardStep.Passphrase);
SetField(instance, "_failedUnlockAttempts", 0);
}
}