Files

299 lines
12 KiB
C#

using System.Net;
using System.Net.Http.Headers;
using System.Text.Json;
using FluentAssertions;
using Microsoft.Extensions.DependencyInjection;
/// <summary>
/// Integration tests for FHIR R4 read/search endpoints (Phase 11 Step 7).
/// </summary>
[Collection("Database")]
public class FhirIntegrationTests : IAsyncLifetime
{
private readonly ApiFixture _fixture;
private HttpClient _client = null!;
private HttpClient _anonymousClient = null!;
public FhirIntegrationTests(ApiFixture fixture) => _fixture = fixture;
public async Task InitializeAsync()
{
using var scope = _fixture.Services.CreateScope();
var db = scope.ServiceProvider.GetRequiredService<AppDbContext>();
await DbResetHelper.ResetAsync(db);
await DataSeeder.SeedAsync(db);
await FhirClinicalSeedHelper.SeedAsync(db);
_client = await AuthHelper.LoginAsync(_fixture, "admin1");
_anonymousClient = _fixture.CreateClient();
}
public Task DisposeAsync() => Task.CompletedTask;
[Fact]
public async Task Metadata_ReturnsCapabilityStatementWithSupportedResources()
{
var response = await GetFhirAsync("/fhir/metadata", authenticated: false);
response.StatusCode.Should().Be(HttpStatusCode.OK);
var body = await ParseJsonAsync(response);
var resourceTypes = body.GetProperty("rest")[0]
.GetProperty("resource")
.EnumerateArray()
.Select(r => r.GetProperty("type").GetString())
.ToList();
resourceTypes.Should().Contain(new[] { "Patient", "Encounter", "Observation" });
}
[Fact]
public async Task ReadPatient_ReturnsFhirPatientWithMrnNameAndGender()
{
var response = await GetFhirAsync($"/fhir/Patient/{FhirClinicalSeedHelper.Patient1Id}");
response.StatusCode.Should().Be(HttpStatusCode.OK);
var body = await ParseJsonAsync(response);
body.GetProperty("resourceType").GetString().Should().Be("Patient");
body.GetProperty("id").GetString()
.Should().Be(FhirClinicalSeedHelper.Patient1Id.ToString());
var identifier = body.GetProperty("identifier")[0];
identifier.GetProperty("value").GetString().Should().Be("VCR-000001");
body.GetProperty("name")[0].GetProperty("text").GetString()
.Should().Be("MARIA SANTOS");
body.GetProperty("gender").GetString().Should().Be("female");
body.GetProperty("birthDate").GetString().Should().Be("1978-03-15");
}
[Fact]
public async Task SearchPatients_ByName_ReturnsMatchingBundle()
{
var response = await GetFhirAsync("/fhir/Patient?name=Santos");
response.StatusCode.Should().Be(HttpStatusCode.OK);
var body = await ParseJsonAsync(response);
body.GetProperty("type").GetString().Should().Be("searchset");
body.GetProperty("total").GetInt32().Should().BeGreaterThan(0);
body.GetProperty("entry").GetArrayLength().Should().BeGreaterThan(0);
body.GetProperty("entry")[0].GetProperty("resource")
.GetProperty("name")[0].GetProperty("text").GetString()
.Should().Contain("SANTOS");
}
[Fact]
public async Task SearchPatients_ByIdentifier_ReturnsPatientByMrn()
{
var response = await GetFhirAsync("/fhir/Patient?identifier=VCR-000001");
response.StatusCode.Should().Be(HttpStatusCode.OK);
var body = await ParseJsonAsync(response);
body.GetProperty("entry").GetArrayLength().Should().Be(1);
body.GetProperty("entry")[0].GetProperty("resource")
.GetProperty("identifier")[0].GetProperty("value").GetString()
.Should().Be("VCR-000001");
}
[Fact]
public async Task ReadEncounter_ReturnsFhirEncounterWithStatusAndPatientReference()
{
var response = await GetFhirAsync($"/fhir/Encounter/{FhirClinicalSeedHelper.Encounter1Id}");
response.StatusCode.Should().Be(HttpStatusCode.OK);
var body = await ParseJsonAsync(response);
body.GetProperty("resourceType").GetString().Should().Be("Encounter");
body.GetProperty("status").GetString().Should().Be("in-progress");
body.GetProperty("subject").GetProperty("reference").GetString()
.Should().Be($"Patient/{FhirClinicalSeedHelper.Patient1Id}");
}
[Fact]
public async Task SearchEncounters_ByPatient_ReturnsMatchingEncounters()
{
var patientId = FhirClinicalSeedHelper.Patient1Id;
var response = await GetFhirAsync($"/fhir/Encounter?patient={patientId}");
response.StatusCode.Should().Be(HttpStatusCode.OK);
var body = await ParseJsonAsync(response);
body.GetProperty("total").GetInt32().Should().BeGreaterThan(0);
body.GetProperty("entry").EnumerateArray().Should().AllSatisfy(entry =>
{
entry.GetProperty("resource").GetProperty("subject")
.GetProperty("reference").GetString()
.Should().Be($"Patient/{patientId}");
});
}
[Fact]
public async Task ReadObservation_ReturnsFhirObservationWithLoincCodeAndUcumUnit()
{
var response = await GetFhirAsync($"/fhir/Observation/{FhirClinicalSeedHelper.HeartRateObsId}");
response.StatusCode.Should().Be(HttpStatusCode.OK);
var body = await ParseJsonAsync(response);
body.GetProperty("resourceType").GetString().Should().Be("Observation");
var coding = body.GetProperty("code").GetProperty("coding")[0];
coding.GetProperty("system").GetString().Should().Be("http://loinc.org");
coding.GetProperty("code").GetString().Should().Be("8867-4");
if (coding.TryGetProperty("display", out var display))
display.GetString().Should().Be("Heart rate");
var value = body.GetProperty("valueQuantity");
value.GetProperty("value").GetDecimal().Should().Be(88m);
value.GetProperty("unit").GetString().Should().Be("bpm");
value.GetProperty("code").GetString().Should().Be("/min");
}
[Fact]
public async Task SearchObservations_ByCategoryVitalSigns_ReturnsVitalSignObservationsOnly()
{
var patientId = FhirClinicalSeedHelper.Patient1Id;
var response = await GetFhirAsync(
$"/fhir/Observation?patient={patientId}&category=vital-signs");
response.StatusCode.Should().Be(HttpStatusCode.OK);
var body = await ParseJsonAsync(response);
body.GetProperty("entry").GetArrayLength().Should().BeGreaterThan(0);
foreach (var entry in body.GetProperty("entry").EnumerateArray())
{
var category = entry.GetProperty("resource").GetProperty("category")[0]
.GetProperty("coding")[0].GetProperty("code").GetString();
category.Should().Be("vital-signs");
}
}
[Fact]
public async Task SearchObservations_ByLoincCode_ResolvesToHeartRate()
{
var response = await GetFhirAsync("/fhir/Observation?code=8867-4");
response.StatusCode.Should().Be(HttpStatusCode.OK);
var body = await ParseJsonAsync(response);
body.GetProperty("entry").GetArrayLength().Should().BeGreaterThan(0);
var coding = body.GetProperty("entry")[0].GetProperty("resource")
.GetProperty("code").GetProperty("coding")[0];
coding.GetProperty("code").GetString().Should().Be("8867-4");
var value = body.GetProperty("entry")[0].GetProperty("resource")
.GetProperty("valueQuantity").GetProperty("value").GetDecimal();
value.Should().Be(88m);
}
[Fact]
public async Task SearchObservations_ByDateGreaterOrEqual_FiltersByRecordedAt()
{
var patientId = FhirClinicalSeedHelper.Patient1Id;
var response = await GetFhirAsync(
$"/fhir/Observation?patient={patientId}&date=ge2026-06-20");
response.StatusCode.Should().Be(HttpStatusCode.OK);
var body = await ParseJsonAsync(response);
body.GetProperty("total").GetInt32().Should().BeGreaterThan(0);
body.GetProperty("entry").GetArrayLength().Should().BeGreaterThan(0);
}
[Fact]
public async Task PatientEverything_ReturnsCompletePatientBundle()
{
var response = await GetFhirAsync(
$"/fhir/Patient/{FhirClinicalSeedHelper.Patient1Id}/$everything");
response.StatusCode.Should().Be(HttpStatusCode.OK);
var body = await ParseJsonAsync(response);
body.GetProperty("type").GetString().Should().Be("searchset");
body.GetProperty("total").GetInt32().Should().BeGreaterThan(1);
var resourceTypes = body.GetProperty("entry").EnumerateArray()
.Select(e => e.GetProperty("resource").GetProperty("resourceType").GetString())
.ToList();
resourceTypes.Should().Contain("Patient");
resourceTypes.Should().Contain("Encounter");
resourceTypes.Should().Contain("Observation");
var includeModes = body.GetProperty("entry").EnumerateArray()
.Where(e => e.GetProperty("resource").GetProperty("resourceType").GetString() != "Patient")
.Select(e => e.GetProperty("search").GetProperty("mode").GetString());
includeModes.Should().AllBe("include");
}
[Fact]
public async Task ReadPatient_NotFound_Returns404OperationOutcome()
{
var missingId = Guid.Parse("00000000-0000-0000-0000-000000000001");
var response = await GetFhirAsync($"/fhir/Patient/{missingId}");
response.StatusCode.Should().Be(HttpStatusCode.NotFound);
var body = await ParseJsonAsync(response);
body.GetProperty("resourceType").GetString().Should().Be("OperationOutcome");
var issue = body.GetProperty("issue")[0];
issue.GetProperty("severity").GetString().Should().Be("error");
issue.GetProperty("code").GetString().Should().Be("not-found");
issue.GetProperty("diagnostics").GetString()
.Should().Contain($"Patient/{missingId}");
}
[Fact]
public async Task ReadPatient_ReturnsApplicationFhirJsonContentType()
{
var response = await GetFhirAsync($"/fhir/Patient/{FhirClinicalSeedHelper.Patient1Id}");
response.StatusCode.Should().Be(HttpStatusCode.OK);
response.Content.Headers.ContentType!.MediaType.Should().Be("application/fhir+json");
}
[Fact]
public async Task SearchPatients_PaginationLinks_AreCorrect()
{
var response = await GetFhirAsync("/fhir/Patient?_count=1&_offset=0");
response.StatusCode.Should().Be(HttpStatusCode.OK);
var body = await ParseJsonAsync(response);
body.GetProperty("total").GetInt32().Should().BeGreaterThanOrEqualTo(2);
body.GetProperty("entry").GetArrayLength().Should().Be(1);
var links = body.GetProperty("link").EnumerateArray()
.ToDictionary(l => l.GetProperty("relation").GetString()!, l => l.GetProperty("url").GetString());
links.Should().ContainKey("self");
links["self"].Should().Contain("_count=1");
links["self"].Should().Contain("_offset=0");
links.Should().ContainKey("next");
links["next"].Should().Contain("_count=1");
links["next"].Should().Contain("_offset=1");
}
private async Task<HttpResponseMessage> GetFhirAsync(string path, bool authenticated = true)
{
var client = authenticated ? _client : _anonymousClient;
var request = new HttpRequestMessage(HttpMethod.Get, path);
request.Headers.Accept.Add(new MediaTypeWithQualityHeaderValue("application/fhir+json"));
return await client.SendAsync(request);
}
private static async Task<JsonElement> ParseJsonAsync(HttpResponseMessage response)
{
var json = await response.Content.ReadAsStringAsync();
return JsonDocument.Parse(json).RootElement;
}
}